v3 - Remove azureedge.net fallback logic and update install scripts (#573)

* Remove logic for azureedge.net fallback in preparation for install script changes (v3)

* remove fallback in index.js

* fix ci

* add updated install scripts

* Update e2e-tests.yml

* Update e2e-tests.yml to remove outdated URLs in workflow

* Fix audit issues

* Revert audit fixes for heap memory failures

---------

Co-authored-by: HarithaVattikuti <73516759+HarithaVattikuti@users.noreply.github.com>

.eslintignore

@@ -0,0 +1,6 @@
+# Ignore list
+/*
+
+# Do not ignore these folders:
+!__tests__/
+!src/

.eslintrc.js

@@ -0,0 +1,51 @@
+// This is a reusable configuration file copied from https://github.com/actions/reusable-workflows/tree/main/reusable-configurations. Please don't make changes to this file as it's the subject of an automatic update.
+module.exports = {
+  extends: [
+    'eslint:recommended',
+    'plugin:@typescript-eslint/recommended',
+    'plugin:eslint-plugin-jest/recommended',
+    'eslint-config-prettier'
+  ],
+  parser: '@typescript-eslint/parser',
+  plugins: ['@typescript-eslint', 'eslint-plugin-node', 'eslint-plugin-jest'],
+  rules: {
+    '@typescript-eslint/no-require-imports': 'error',
+    '@typescript-eslint/no-non-null-assertion': 'off',
+    '@typescript-eslint/no-explicit-any': 'off',
+    '@typescript-eslint/no-empty-function': 'off',
+    '@typescript-eslint/ban-ts-comment': [
+      'error',
+      {
+        'ts-ignore': 'allow-with-description'
+      }
+    ],
+    'no-console': 'error',
+    'yoda': 'error',
+    'prefer-const': [
+      'error',
+      {
+        destructuring: 'all'
+      }
+    ],
+    'no-control-regex': 'off',
+    'no-constant-condition': ['error', {checkLoops: false}],
+    'node/no-extraneous-import': 'error'
+  },
+  overrides: [
+    {
+      files: ['**/*{test,spec}.ts'],
+      rules: {
+        '@typescript-eslint/no-unused-vars': 'off',
+        'jest/no-standalone-expect': 'off',
+        'jest/no-conditional-expect': 'off',
+        'no-console': 'off',
+
+      }
+    }
+  ],
+  env: {
+    node: true,
+    es6: true,
+    'jest/globals': true
+  }
+};

.gitattributes

@@ -1 +1,2 @@
+* text=auto eol=lf
 .licenses/** -diff linguist-generated=true

.github/workflows/basic-validation.yml

@@ -14,4 +14,4 @@ on:
 jobs:
   call-basic-validation:
     name: Basic validation
-    uses: actions/reusable-workflows/.github/workflows/basic-validation.yml@main
+    uses: actions/reusable-workflows/.github/workflows/basic-validation.yml@main

.github/workflows/check-dist.yml

@@ -14,4 +14,4 @@ on:
 jobs:
   call-check-dist:
     name: Check dist/
-    uses: actions/reusable-workflows/.github/workflows/check-dist.yml@main
+    uses: actions/reusable-workflows/.github/workflows/check-dist.yml@main

.github/workflows/codeql-analysis.yml

@@ -2,13 +2,13 @@ name: CodeQL analysis
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
-    branches: [ main ]
+    branches: [main]
   schedule:
     - cron: '0 3 * * 0'
 
 jobs:
   call-codeQL-analysis:
-    name: CodeQL analysis 
-    uses: actions/reusable-workflows/.github/workflows/codeql-analysis.yml@main
+    name: CodeQL analysis
+    uses: actions/reusable-workflows/.github/workflows/codeql-analysis.yml@main

.github/workflows/e2e-tests.yml

@@ -17,14 +17,14 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        operating-system: [ubuntu-latest, windows-latest, macOS-latest]
+        operating-system: [ubuntu-22.04, windows-latest, macOS-latest]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      - name: Setup dotnet 2.2.402 and 3.1.404
+      - name: Setup dotnet 2.2.402, 3.1.404 and 3.0.x
         uses: ./
         with:
           dotnet-version: |
@@ -33,14 +33,14 @@ jobs:
             3.0.x
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 2.2.402 3.1.404 '3.0'
+        run: __tests__/verify-dotnet.ps1 -Patterns "^2.2.402$", "^3.1.404$", "^3.0"
 
   test-setup-full-version:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       fail-fast: false
       matrix:
-        operating-system: [ubuntu-latest, windows-latest, macOS-latest]
+        operating-system: [ubuntu-22.04, windows-latest, macos-13]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -60,20 +60,16 @@ jobs:
           source-url: https://api.nuget.org/v3/index.json
         env:
           NUGET_AUTH_TOKEN: NOTATOKEN
-      - name: Verify nuget config file
-        shell: pwsh
-        run: |
-          if (-Not (Test-Path "../nuget.config")) { throw "nuget file not generated correctly" }
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 3.1.201 2.2.402
+        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1.201$", "^2.2.402$" -CheckNugetConfig
 
   test-setup-without-patch-version:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       fail-fast: false
       matrix:
-        operating-system: [ubuntu-latest, windows-latest, macOS-latest]
+        operating-system: [ubuntu-22.04, windows-latest, macOS-latest]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -91,38 +87,34 @@ jobs:
           dotnet-version: '2.2'
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 3.1 2.2
+        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1", "^2.2"
 
   test-setup-prerelease-version:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       fail-fast: false
       matrix:
-        operating-system: [ubuntu-latest, windows-latest, macOS-latest]
+        operating-system: [ubuntu-22.04, windows-latest, macos-13]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
       - name: Clear toolcache
         shell: pwsh
         run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-      - name: Setup dotnet '2.2'
-        uses: ./
-        with:
-          dotnet-version: '2.2'
       - name: Setup dotnet '3.1.100-preview1-014459'
         uses: ./
         with:
           dotnet-version: '3.1.100-preview1-014459'
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 3.1.100-preview1-014459
+        run: __tests__/verify-dotnet.ps1 -Patterns "3.1.100-preview1-014459"
 
   test-setup-latest-patch-version:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       fail-fast: false
       matrix:
-        operating-system: [ubuntu-latest, windows-latest, macOS-latest]
+        operating-system: [ubuntu-22.04, windows-latest, macOS-latest]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -139,14 +131,35 @@ jobs:
           dotnet-version: 2.2.X
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 '2.2' '3.1'
+        run: __tests__/verify-dotnet.ps1 -Patterns "^2.2", "^3.1"
+
+  test-ABCxx-syntax:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-22.04, windows-latest, macOS-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
+
+      - name: Setup dotnet 6.0.4xx
+        uses: ./
+        with:
+          dotnet-version: '6.0.4xx'
+      - name: Verify dotnet
+        shell: pwsh
+        run: __tests__/verify-dotnet.ps1 -Patterns "^6\.0\.4\d{2}"
 
   test-setup-with-wildcard:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       fail-fast: false
       matrix:
-        operating-system: [ubuntu-latest, windows-latest, macOS-latest]
+        operating-system: [ubuntu-22.04, windows-latest, macOS-latest]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -163,14 +176,14 @@ jobs:
           dotnet-version: 2.2.*
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 3.1 2.2
+        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1", "^2.2"
 
   test-setup-global-json-specified-and-version:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       fail-fast: false
       matrix:
-        operating-system: [ubuntu-latest, windows-latest, macOS-latest]
+        operating-system: [ubuntu-22.04, windows-latest, macOS-latest]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -181,7 +194,7 @@ jobs:
         shell: bash
         run: |
           mkdir subdirectory
-          echo '{"sdk":{"version": "2.2","rollForward": "latestFeature"}}' > ./subdirectory/global.json
+          echo '{"sdk":{"version": "2.2.207","rollForward": "latestFeature"}}' > ./subdirectory/global.json
       - name: Setup dotnet
         uses: ./
         with:
@@ -189,91 +202,173 @@ jobs:
           global-json-file: ./subdirectory/global.json
       - name: Verify dotnet
         shell: pwsh
-        run: __tests__/verify-dotnet.ps1 2.2 3.1
+        run: __tests__/verify-dotnet.ps1 -Patterns "^2.2", "^3.1"
+
+  test-setup-global-json-only:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-22.04, windows-latest, macOS-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
+      - name: Write global.json
+        shell: bash
+        run: |
+          mkdir subdirectory
+          echo '{"sdk":{"version": "2.2.207","rollForward": "latestFeature"}}' > ./subdirectory/global.json
+      - name: Setup dotnet
+        uses: ./
+        with:
+          global-json-file: ./subdirectory/global.json
+      - name: Verify dotnet
+        shell: pwsh
+        run: __tests__/verify-dotnet.ps1 -Patterns "^2.2"
 
   test-setup-with-dotnet-quality:
-      runs-on: ${{ matrix.operating-system }}
-      strategy:
-        fail-fast: false
-        matrix:
-          operating-system: [ubuntu-latest, windows-latest, macOS-latest]
-      steps:
-        - name: Checkout
-          uses: actions/checkout@v3
-        - name: Clear toolcache
-          shell: pwsh
-          run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-               
-        - name: Setup dotnet 7.0 with preview quality
-          uses: ./
-          with:
-            dotnet-version: "7.0"
-            dotnet-quality: "preview"
-        - name: Verify preview version
-          shell: pwsh
-          run: |
-            $version = & dotnet --version
-            Write-Host "Installed version: $version"
-            if (-not ($version.Contains("preview") -or $version.Contains("rc"))) { throw "Unexpected version" }
-  
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-22.04, windows-latest, macOS-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
+
+      - name: Setup dotnet 7.0 with preview quality
+        uses: ./
+        with:
+          dotnet-version: '7.0'
+          dotnet-quality: 'preview'
+      - name: Verify dotnet
+        shell: pwsh
+        run: __tests__/verify-dotnet.ps1 -Patterns "^7\.0\.\d+-"
+
+  test-setup-with-cache:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-22.04, windows-latest, macos-latest]
+    env:
+      NUGET_PACKAGES: ${{ github.workspace }}/.nuget/packages
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
+      - name: Copy NuGet lock file to root
+        shell: bash
+        run: cp ./__tests__/e2e-test-csproj/packages.lock.json ./packages.lock.json
+      - name: Setup .NET Core 3.1
+        id: setup-dotnet
+        uses: ./
+        with:
+          dotnet-version: 3.1
+          cache: true
+      - name: Verify Cache
+        if: steps.setup-dotnet.outputs.cache-hit == 'true'
+        shell: bash
+        run: if [[ -e ${NUGET_PACKAGES} ]]; then exit 0; else exit 1; fi
+      - name: Verify dotnet
+        shell: pwsh
+        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1"
+
+  test-setup-with-cache-dependency-path:
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-22.04, windows-latest, macos-latest]
+    env:
+      NUGET_PACKAGES: ${{ github.workspace }}/.nuget/packages
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
+      - name: Setup .NET Core 3.1
+        id: setup-dotnet
+        uses: ./
+        with:
+          dotnet-version: 3.1
+          cache: true
+          cache-dependency-path: './__tests__/e2e-test-csproj/packages.lock.json'
+      - name: Verify Cache
+        if: steps.setup-dotnet.outputs.cache-hit == 'true'
+        shell: bash
+        run: if [[ -e ${NUGET_PACKAGES} ]]; then exit 0; else exit 1; fi
+      - name: Verify dotnet
+        shell: pwsh
+        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1"
+
   test-dotnet-version-output-during-single-version-installation:
-      runs-on: ${{ matrix.operating-system }}
-      strategy:
-        fail-fast: false
-        matrix:
-          operating-system: [ubuntu-latest, windows-latest, macOS-latest]
-      steps:
-        - name: Checkout
-          uses: actions/checkout@v3
-        - name: Clear toolcache
-          shell: pwsh
-          run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-               
-        - name: Setup dotnet 6.0.401
-          uses: ./
-          id: step1
-          with:
-            dotnet-version: "6.0.401"
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-22.04, windows-latest, macOS-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
+
+      - name: Setup dotnet 6.0.401
+        uses: ./
+        id: step1
+        with:
+          dotnet-version: '6.0.401'
+
+      - name: Verify value of the dotnet-version output
+        shell: pwsh
+        run: |
+          $version = & dotnet --version
+          Write-Host "Installed version: $version"
+          if (-not ($version -eq '${{steps.step1.outputs.dotnet-version}}')) { throw "Unexpected output value" }
 
-        - name: Verify value of the dotnet-version output
-          shell: pwsh
-          run: |
-            $version = & dotnet --version
-            Write-Host "Installed version: $version"
-            if (-not ($version -eq '${{steps.step1.outputs.dotnet-version}}')) { throw "Unexpected output value" }
-  
   test-dotnet-version-output-during-multiple-version-installation:
-      runs-on: ${{ matrix.operating-system }}
-      strategy:
-        fail-fast: false
-        matrix:
-          operating-system: [ubuntu-latest, windows-latest, macOS-latest]
-      steps:
-        - name: Checkout
-          uses: actions/checkout@v3
-        - name: Clear toolcache
-          shell: pwsh
-          run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
-               
-        - name: Setup dotnet 6.0.401, 5.0.408, 7.0.100-rc.1.22431.12
-          uses: ./
-          id: step2
-          with:
-            dotnet-version: |
-              7.0.100-rc.1.22431.12
-              6.0.401
-              5.0.408
+    runs-on: ${{ matrix.operating-system }}
+    strategy:
+      fail-fast: false
+      matrix:
+        operating-system: [ubuntu-22.04, windows-latest, macOS-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
 
-        - name: Verify value of the dotnet-version output
-          shell: pwsh
-          run: |
-            $version = "7.0.100-rc.1.22431.12"
-            if (-not ($version -eq '${{steps.step2.outputs.dotnet-version}}')) { throw "Unexpected output value" }
+      - name: Setup dotnet 6.0.401, 5.0.408, 7.0.100-rc.1.22431.12
+        uses: ./
+        id: step2
+        with:
+          dotnet-version: |
+            7.0.100-rc.1.22431.12
+            6.0.401
+            5.0.408
+
+      - name: Verify value of the dotnet-version output
+        shell: pwsh
+        run: |
+          $version = "7.0.100-rc.1.22431.12"
+          if (-not ($version -eq '${{steps.step2.outputs.dotnet-version}}')) { throw "Unexpected output value" }
 
   test-proxy:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     container:
-      image: mcr.microsoft.com/dotnet/core/runtime-deps:3.0-bionic
+      image: ubuntu:latest
       options: --dns 127.0.0.1
     services:
       squid-proxy:
@@ -286,32 +381,41 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-      - name: Clear tool cache
-        run: rm -rf "/usr/share/dotnet"
-      - name: Install curl
+      - name: Install Powershell
         run: |
-          apt update
-          apt -y install curl
-      - name: Setup dotnet 3.1.201
+          apt-get update
+          apt-get install -y wget apt-transport-https software-properties-common
+          wget -q "https://packages.microsoft.com/config/ubuntu/$(lsb_release -rs)/packages-microsoft-prod.deb"
+          dpkg -i packages-microsoft-prod.deb
+          rm packages-microsoft-prod.deb
+          apt-get update
+          apt-get install -y powershell
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
+      - name: Setup dotnet 6.0
         uses: ./
         with:
-          dotnet-version: 3.1.201
+          dotnet-version: 6.0
           source-url: https://api.nuget.org/v3/index.json
         env:
           NUGET_AUTH_TOKEN: NOTATOKEN
       - name: Verify dotnet
-        run: __tests__/verify-dotnet.sh 3.1.201
+        shell: pwsh
+        run: |
+          __tests__/verify-dotnet.ps1 -Patterns "^6.0" -CheckNugetConfig
 
   test-bypass-proxy:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     env:
       https_proxy: http://no-such-proxy:3128
-      no_proxy: github.com,dotnetcli.blob.core.windows.net,download.visualstudio.microsoft.com,api.nuget.org,dotnetcli.azureedge.net
+      no_proxy: github.com,download.visualstudio.microsoft.com,api.nuget.org,builds.dotnet.microsoft.com,ci.dot.net
     steps:
       - name: Checkout
         uses: actions/checkout@v3
-      - name: Clear tool cache
-        run: rm -rf "/usr/share/dotnet"
+      - name: Clear toolcache
+        shell: pwsh
+        run: __tests__/clear-toolcache.ps1 ${{ runner.os }}
       - name: Setup dotnet 3.1.201
         uses: ./
         with:
@@ -320,4 +424,5 @@ jobs:
         env:
           NUGET_AUTH_TOKEN: NOTATOKEN
       - name: Verify dotnet
-        run: __tests__/verify-dotnet.sh 3.1.201
+        shell: pwsh
+        run: __tests__/verify-dotnet.ps1 -Patterns "^3.1.201$" -CheckNugetConfig

.github/workflows/licensed.yml

@@ -12,4 +12,4 @@ on:
 jobs:
   call-licensed:
     name: Licensed
-    uses: actions/reusable-workflows/.github/workflows/licensed.yml@main
+    uses: actions/reusable-workflows/.github/workflows/licensed.yml@main

.github/workflows/release-new-action-version.yml

@@ -21,9 +21,9 @@ jobs:
       name: releaseNewActionVersion
     runs-on: ubuntu-latest
     steps:
-    - name: Update the ${{ env.TAG_NAME }} tag
-      id: update-major-tag
-      uses: actions/publish-action@v0.2.1
-      with:
-        source-tag: ${{ env.TAG_NAME }}
-        slack-webhook: ${{ secrets.SLACK_WEBHOOK }}
+      - name: Update the ${{ env.TAG_NAME }} tag
+        id: update-major-tag
+        uses: actions/publish-action@v0.2.2
+        with:
+          source-tag: ${{ env.TAG_NAME }}
+          slack-webhook: ${{ secrets.SLACK_WEBHOOK }}

.github/workflows/test-dotnet.yml

@@ -17,8 +17,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        operating-system: [ubuntu-latest, windows-latest, macOS-latest]
-        dotnet-version: ['2.1', '2.2', '3.0', '3.1', '5.0']
+        operating-system: [ubuntu-22.04, windows-latest, macOS-latest]
+        dotnet-version: ['2.1', '2.2', '3.0', '3.1', '5.0', '6.0', '7.0', '8.0']
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -29,9 +29,7 @@ jobs:
         uses: ./
         with:
           dotnet-version: ${{ matrix.dotnet-version }}
-      - name: Check installed version
+      - name: Verify installed version
         shell: pwsh
         run: |
-          $version = & dotnet --version
-          Write-Host "Installed version: $version"
-          if (-not $version.StartsWith("${{ matrix.dotnet-version }}")) { throw "Unexpected version" }
+          __tests__/verify-dotnet.ps1 -Patterns "^${{ matrix.dotnet-version }}"

.github/workflows/update-config-files.yml

@@ -0,0 +1,11 @@
+name: Update configuration files
+
+on:
+  schedule:
+    - cron: '0 3 * * 0'
+  workflow_dispatch:
+
+jobs:
+  call-update-configuration-files:
+    name: Update configuration files
+    uses: actions/reusable-workflows/.github/workflows/update-config-files.yml@main

.gitignore

@@ -3,8 +3,8 @@ global.json
 lib/
 node_modules/
 __tests__/runner/*
-__tests__/sample-csproj/bin/
-__tests__/sample-csproj/obj/
+__tests__/e2e-test-csproj/bin/
+__tests__/e2e-test-csproj/obj/
 
 # Rest of the file pulled from https://github.com/github/gitignore/blob/master/Node.gitignore
 # Logs

.husky/pre-commit

@@ -2,3 +2,4 @@
 . "$(dirname -- "$0")/_/husky.sh"
 
 npm run format
+npm run lint:fix

.husky/pre-push

@@ -3,3 +3,4 @@
 
 # Tests are not run at push time since they can take 2-4 minutes to complete
 npm run format-check
+npm run lint

.licensed.yml

@@ -3,6 +3,7 @@ sources:
 
 allowed:
   - apache-2.0
+  - 0bsd
   - bsd-2-clause
   - bsd-3-clause
   - isc
@@ -11,4 +12,5 @@ allowed:
   - unlicense
 
 reviewed:
-  npm:
+  npm:
+    - sax # ISC + MIT

.prettierignore

@@ -0,0 +1,7 @@
+# Ignore list
+/*
+
+# Do not ignore these folders:
+!__tests__/
+!.github/
+!src/

.prettierrc.js

@@ -0,0 +1,11 @@
+// This is a reusable configuration file copied from https://github.com/actions/reusable-workflows/tree/main/reusable-configurations. Please don't make changes to this file as it's the subject of an automatic update.
+module.exports = {
+  printWidth: 80,
+  tabWidth: 2,
+  useTabs: false,
+  semi: true,
+  singleQuote: true,
+  trailingComma: 'none',
+  bracketSpacing: false,
+  arrowParens: 'avoid'
+};

.prettierrc.json

@@ -1,12 +0,0 @@
-{
-    "printWidth": 80,
-    "tabWidth": 2,
-    "useTabs": false,
-    "semi": true,
-    "singleQuote": true,
-    "trailingComma": "none",
-    "bracketSpacing": false,
-    "arrowParens": "avoid",
-    "parser": "typescript",
-    "endOfLine": "auto"
-  }

README.md

@@ -1,6 +1,7 @@
 # setup-dotnet
 
-[![GitHub Actions Status](https://github.com/actions/setup-dotnet/workflows/Main%20workflow/badge.svg)](https://github.com/actions/setup-dotnet)
+[![Basic validation](https://github.com/actions/setup-dotnet/actions/workflows/basic-validation.yml/badge.svg?branch=main)](https://github.com/actions/setup-dotnet/actions/workflows/basic-validation.yml)
+[![e2e tests](https://github.com/actions/setup-dotnet/actions/workflows/e2e-tests.yml/badge.svg?branch=main)](https://github.com/actions/setup-dotnet/actions/workflows/e2e-tests.yml)
 
 This action sets up a [.NET CLI](https://github.com/dotnet/sdk) environment for use in actions by:
 
@@ -48,12 +49,13 @@ The `dotnet-version` input supports following syntax:
 - **A.B.C** (e.g 6.0.400, 7.0.100-preview.7.22377.5) - installs exact version of .NET SDK
 - **A.B** or **A.B.x** (e.g. 3.1, 3.1.x) - installs the latest patch version of .NET SDK on the channel `3.1`, including prerelease versions (preview, rc)
 - **A** or **A.x** (e.g. 3, 3.x) - installs the latest minor version of the specified major tag, including prerelease versions (preview, rc)
+- **A.B.Cxx** (e.g. 6.0.4xx) - available since `.NET 5.0` release. Installs the latest version of the specific SDK release, including prerelease versions (preview, rc). 
 
 
 ## Using the `dotnet-quality` input
 This input sets up the action to install the latest build of the specified quality in the channel. The possible values of `dotnet-quality` are: **daily**, **signed**, **validated**, **preview**, **ga**.
 
-> **Note**: `dotnet-quality` input can be used only with .NET SDK version in 'A.B', 'A.B.x', 'A' and 'A.x' formats where the major version is higher than 5. In other cases, `dotnet-quality` input will be ignored.
+> **Note**: `dotnet-quality` input can be used only with .NET SDK version in 'A.B', 'A.B.x', 'A', 'A.x' and 'A.B.Cxx' formats where the major version is higher than 5. In other cases, `dotnet-quality` input will be ignored.
 
 ```yml
 steps:
@@ -80,6 +82,63 @@ steps:
   working-directory: csharp
 ```
 
+## Caching NuGet Packages
+The action has a built-in functionality for caching and restoring dependencies. It uses [toolkit/cache](https://github.com/actions/toolkit/tree/main/packages/cache) under the hood for caching global packages data but requires less configuration settings. The `cache` input is optional, and caching is turned off by default.
+
+The action searches for [NuGet Lock files](https://learn.microsoft.com/nuget/consume-packages/package-references-in-project-files#locking-dependencies) (`packages.lock.json`) in the repository root, calculates their hash and uses it as a part of the cache key. If lock file does not exist, this action throws error. Use `cache-dependency-path` for cases when multiple dependency files are used, or they are located in different subdirectories.
+
+> **Warning**: Caching NuGet packages is available since .NET SDK 2.1.500 and 2.2.100 as the NuGet lock file [is available](https://learn.microsoft.com/nuget/consume-packages/package-references-in-project-files#locking-dependencies) only for NuGet 4.9 and above.
+
+```yaml
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-dotnet@v3
+  with:
+    dotnet-version: 6.x
+    cache: true
+- run: dotnet restore --locked-mode
+```
+
+> **Note**: This action will only restore `global-packages` folder, so you will probably get the [NU1403](https://learn.microsoft.com/nuget/reference/errors-and-warnings/nu1403) error when running `dotnet restore`.
+> To avoid this, you can use [`DisableImplicitNuGetFallbackFolder`](https://github.com/dotnet/reproducible-builds/blob/abfe986832aa28597d3340b92469d1a702013d23/Documentation/Reproducible-MSBuild/Techniques/DisableImplicitNuGetFallbackFolder.md) option.
+
+```xml
+<PropertyGroup>
+  <DisableImplicitNuGetFallbackFolder>true</DisableImplicitNuGetFallbackFolder>
+</PropertyGroup>
+```
+
+### Reduce caching size
+
+> **Note**: Use [`NUGET_PACKAGES`](https://learn.microsoft.com/nuget/reference/cli-reference/cli-ref-environment-variables) environment variable if available. Some action runners already has huge libraries. (ex. Xamarin)
+
+```yaml
+env:
+  NUGET_PACKAGES: ${{ github.workspace }}/.nuget/packages
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-dotnet@v3
+  with:
+    dotnet-version: 6.x
+    cache: true
+- run: dotnet restore --locked-mode
+```
+
+### Caching NuGet packages in monorepos
+
+```yaml
+env:
+  NUGET_PACKAGES: ${{ github.workspace }}/.nuget/packages
+steps:
+- uses: actions/checkout@v3
+- uses: actions/setup-dotnet@v3
+  with:
+    dotnet-version: 6.x
+    cache: true
+    cache-dependency-path: subdir/packages.lock.json
+- run: dotnet restore --locked-mode
+```
+
 ## Matrix Testing
 Using `setup-dotnet` it's possible to use [matrix syntax](https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstrategymatrix) to install several versions of .NET SDK:
 ```yml
@@ -212,6 +271,9 @@ When the `dotnet-version` input is used along with the `global-json-file` input,
     - run: echo '${{ steps.stepid.outputs.dotnet-version }}' # outputs 2.2.207
 ```
 
+### `cache-hit`
+A boolean value to indicate an exact match was found for the cache key (follows [actions/cache](https://github.com/actions/cache#outputs))
+
 ## Environment variables
 
 Some environment variables may be necessary for your particular case or to improve logging. Some examples are listed below, but the full list with complete details can be found here: https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-environment-variables
@@ -222,25 +284,28 @@ Some environment variables may be necessary for your particular case or to impro
 | DOTNET_NOLOGO      |Removes logo and telemetry message from first run of dotnet cli|*false*|
 | DOTNET_CLI_TELEMETRY_OPTOUT   |Opt-out of telemetry being sent to Microsoft|*false*|
 | DOTNET_MULTILEVEL_LOOKUP   |Configures whether the global install location is used as a fall-back|*true*|
+| NUGET_PACKAGES |Configures a path to the [NuGet `global-packages` folder](https://learn.microsoft.com/nuget/consume-packages/managing-the-global-packages-and-cache-folders)|*default value for each OS* |
 
-The default value of the `DOTNET_INSTALL_DIR` environment variable depends on the operation system which is used on a runner:
-| **Operation system**      | **Default value** |
-| ----------- | ----------- |
-| **Windows** | `C:\Program Files\dotnet` |
-| **Ubuntu** | `/usr/share/dotnet` |
-| **macOS** | `/Users/runner/.dotnet` |
+The default values of the `DOTNET_INSTALL_DIR` and `NUGET_PACKAGES` environment variables depend on the operation system which is used on a runner:
+| **Operation system** | `DOTNET_INSTALL_DIR` | `NUGET_PACKAGES` |
+| ----------- | ----------- | ----------- |
+| **Windows** | `C:\Program Files\dotnet` | `%userprofile%\.nuget\packages` |
+| **Ubuntu** | `/usr/share/dotnet` | `~/.nuget/packages` |
+| **macOS** | `/Users/runner/.dotnet` | `~/.nuget/packages` |
 
-**Example usage**:
+**Example usage of environment variable**:
 ```yml
 build:
   runs-on: ubuntu-latest
   env:
     DOTNET_INSTALL_DIR: "path/to/directory"
+    NUGET_PACKAGES: ${{ github.workspace }}/.nuget/packages
   steps:
     - uses: actions/checkout@main
     - uses: actions/setup-dotnet@v3
       with:
         dotnet-version: '3.1.x'
+        cache: true
 ```
 
 ## License

__tests__/__snapshots__/authutil.test.ts.snap

@@ -1,6 +1,6 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`authutil tests Existing config not in repo root, sets up a partial NuGet.config user/PAT for GPR 1`] = `
+exports[`authutil tests existing config not in repo root, sets up a partial NuGet.config user/PAT for GPR 1`] = `
 "<?xml version=\\"1.0\\"?>
 <configuration>
   <config>
@@ -15,7 +15,7 @@ exports[`authutil tests Existing config not in repo root, sets up a partial NuGe
 </configuration>"
 `;
 
-exports[`authutil tests Existing config w/ Azure Artifacts source and NuGet.org, sets up a partial NuGet.config user/PAT for GPR 1`] = `
+exports[`authutil tests existing config w/ Azure Artifacts source and NuGet.org, sets up a partial NuGet.config user/PAT for GPR 1`] = `
 "<?xml version=\\"1.0\\"?>
 <configuration>
   <config>
@@ -30,7 +30,7 @@ exports[`authutil tests Existing config w/ Azure Artifacts source and NuGet.org,
 </configuration>"
 `;
 
-exports[`authutil tests Existing config w/ GPR source and NuGet.org, sets up a partial NuGet.config user/PAT for GPR 1`] = `
+exports[`authutil tests existing config w/ GPR source and NuGet.org, sets up a partial NuGet.config user/PAT for GPR 1`] = `
 "<?xml version=\\"1.0\\"?>
 <configuration>
   <config>
@@ -45,7 +45,7 @@ exports[`authutil tests Existing config w/ GPR source and NuGet.org, sets up a p
 </configuration>"
 `;
 
-exports[`authutil tests Existing config w/ no GPR sources, sets up a full NuGet.config with URL and user/PAT for GPR 1`] = `
+exports[`authutil tests existing config w/ no GPR sources, sets up a full NuGet.config with URL and user/PAT for GPR 1`] = `
 "<?xml version=\\"1.0\\"?>
 <configuration>
   <config>
@@ -63,7 +63,7 @@ exports[`authutil tests Existing config w/ no GPR sources, sets up a full NuGet.
 </configuration>"
 `;
 
-exports[`authutil tests Existing config w/ no sources, sets up a full NuGet.config with URL and user/PAT for GPR 1`] = `
+exports[`authutil tests existing config w/ no sources, sets up a full NuGet.config with URL and user/PAT for GPR 1`] = `
 "<?xml version=\\"1.0\\"?>
 <configuration>
   <config>
@@ -81,7 +81,7 @@ exports[`authutil tests Existing config w/ no sources, sets up a full NuGet.conf
 </configuration>"
 `;
 
-exports[`authutil tests Existing config w/ only Azure Artifacts source, sets up a partial NuGet.config user/PAT for GPR 1`] = `
+exports[`authutil tests existing config w/ only Azure Artifacts source, sets up a partial NuGet.config user/PAT for GPR 1`] = `
 "<?xml version=\\"1.0\\"?>
 <configuration>
   <config>
@@ -96,7 +96,7 @@ exports[`authutil tests Existing config w/ only Azure Artifacts source, sets up
 </configuration>"
 `;
 
-exports[`authutil tests Existing config w/ only GPR source, sets up a partial NuGet.config user/PAT for GPR 1`] = `
+exports[`authutil tests existing config w/ only GPR source, sets up a partial NuGet.config user/PAT for GPR 1`] = `
 "<?xml version=\\"1.0\\"?>
 <configuration>
   <config>
@@ -111,7 +111,7 @@ exports[`authutil tests Existing config w/ only GPR source, sets up a partial Nu
 </configuration>"
 `;
 
-exports[`authutil tests Existing config w/ two GPR sources, sets up a partial NuGet.config user/PAT for GPR 1`] = `
+exports[`authutil tests existing config w/ two GPR sources, sets up a partial NuGet.config user/PAT for GPR 1`] = `
 "<?xml version=\\"1.0\\"?>
 <configuration>
   <config>
@@ -130,7 +130,7 @@ exports[`authutil tests Existing config w/ two GPR sources, sets up a partial Nu
 </configuration>"
 `;
 
-exports[`authutil tests No existing config, sets up a full NuGet.config with URL and other owner/PAT for GPR 1`] = `
+exports[`authutil tests no existing config, sets up a full NuGet.config with URL and other owner/PAT for GPR 1`] = `
 "<?xml version=\\"1.0\\"?>
 <configuration>
   <config>
@@ -148,7 +148,7 @@ exports[`authutil tests No existing config, sets up a full NuGet.config with URL
 </configuration>"
 `;
 
-exports[`authutil tests No existing config, sets up a full NuGet.config with URL and token for other source 1`] = `
+exports[`authutil tests no existing config, sets up a full NuGet.config with URL and token for other source 1`] = `
 "<?xml version=\\"1.0\\"?>
 <configuration>
   <config>
@@ -166,7 +166,7 @@ exports[`authutil tests No existing config, sets up a full NuGet.config with URL
 </configuration>"
 `;
 
-exports[`authutil tests No existing config, sets up a full NuGet.config with URL and user/PAT for GPR 1`] = `
+exports[`authutil tests no existing config, sets up a full NuGet.config with URL and user/PAT for GPR 1`] = `
 "<?xml version=\\"1.0\\"?>
 <configuration>
   <config>

__tests__/authutil.test.ts

@@ -1,336 +1,336 @@
-import * as io from '@actions/io';
-import fs from 'fs';
-import path from 'path';
-
-const fakeSourcesDirForTesting = path.join(
-  __dirname,
-  'runner',
-  path.join(Math.random().toString(36).substring(7)),
-  's'
-);
-
-const invalidNuGetConfig: string = `<?xml version="1.0" encoding="utf-8"?>`;
-
-const emptyNuGetConfig: string = `<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-</configuration>`;
-
-const nugetorgNuGetConfig: string = `<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
-  </packageSources>
-</configuration>`;
-
-const gprnugetorgNuGetConfig: string = `<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="GPR" value="https://nuget.pkg.github.com/OwnerName/index.json" protocolVersion="3" />
-    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
-  </packageSources>
-</configuration>`;
-
-const gprNuGetConfig: string = `<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="GPR" value="https://nuget.pkg.github.com/OwnerName/index.json" protocolVersion="3" />
-  </packageSources>
-</configuration>`;
-
-const twogprNuGetConfig: string = `<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="GPR-GitHub" value="https://nuget.pkg.github.com/OwnerName/index.json" protocolVersion="3" />
-    <add key="GPR-Actions" value="https://nuget.pkg.github.com/actions/index.json" protocolVersion="3" />
-  </packageSources>
-</configuration>`;
-
-const spaceNuGetConfig: string = `<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="GPR GitHub" value="https://nuget.pkg.github.com/OwnerName/index.json" protocolVersion="3" />
-  </packageSources>
-</configuration>`;
-
-const azureartifactsNuGetConfig: string = `<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="AzureArtifacts" value="https://pkgs.dev.azure.com/amullans/_packaging/GitHubBuilds/nuget/v3/index.json" protocolVersion="3" />
-  </packageSources>
-</configuration>`;
-
-const azureartifactsnugetorgNuGetConfig: string = `<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-  <packageSources>
-    <add key="AzureArtifacts" value="https://pkgs.dev.azure.com/amullans/_packaging/GitHubBuilds/nuget/v3/index.json" protocolVersion="3" />
-    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
-  </packageSources>
-</configuration>`;
-
-// We want a NuGet.config one level above the sources directory, so it doesn't trample a user's NuGet.config but is still picked up by NuGet/dotnet.
-const nugetConfigFile = path.join(fakeSourcesDirForTesting, '../nuget.config');
-
-process.env['GITHUB_REPOSITORY'] = 'OwnerName/repo';
-import * as auth from '../src/authutil';
-
-describe('authutil tests', () => {
-  beforeEach(async () => {
-    await io.rmRF(fakeSourcesDirForTesting);
-    await io.mkdirP(fakeSourcesDirForTesting);
-  }, 30000);
-
-  afterAll(async () => {
-    await io.rmRF(fakeSourcesDirForTesting);
-  }, 30000);
-
-  beforeEach(() => {
-    if (fs.existsSync(nugetConfigFile)) {
-      fs.unlinkSync(nugetConfigFile);
-    }
-    process.env['INPUT_OWNER'] = '';
-    process.env['NUGET_AUTH_TOKEN'] = '';
-  });
-
-  it('No existing config, sets up a full NuGet.config with URL and user/PAT for GPR', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    await auth.configAuthentication(
-      'https://nuget.pkg.github.com/OwnerName/index.json',
-      '',
-      fakeSourcesDirForTesting
-    );
-    expect(fs.existsSync(nugetConfigFile)).toBe(true);
-    expect(
-      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
-    ).toMatchSnapshot();
-  });
-
-  it('No existing config, auth token environment variable not provided, throws', async () => {
-    let thrown = false;
-    try {
-      await auth.configAuthentication(
-        'https://nuget.pkg.github.com/OwnerName/index.json',
-        '',
-        fakeSourcesDirForTesting
-      );
-    } catch {
-      thrown = true;
-    }
-    expect(thrown).toBe(true);
-  });
-
-  it('No existing config, sets up a full NuGet.config with URL and other owner/PAT for GPR', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    process.env['INPUT_OWNER'] = 'otherorg';
-    await auth.configAuthentication(
-      'https://nuget.pkg.github.com/otherorg/index.json',
-      '',
-      fakeSourcesDirForTesting
-    );
-    expect(fs.existsSync(nugetConfigFile)).toBe(true);
-    expect(
-      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
-    ).toMatchSnapshot();
-  });
-
-  it('Existing config (invalid), tries to parse an invalid NuGet.config and throws', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    const inputNuGetConfigPath: string = path.join(
-      fakeSourcesDirForTesting,
-      'nuget.config'
-    );
-    fs.writeFileSync(inputNuGetConfigPath, invalidNuGetConfig);
-    let thrown = false;
-    try {
-      await auth.configAuthentication(
-        'https://nuget.pkg.github.com/OwnerName/index.json',
-        '',
-        fakeSourcesDirForTesting
-      );
-    } catch {
-      thrown = true;
-    }
-    expect(thrown).toBe(true);
-  });
-
-  it('Existing config w/ no sources, sets up a full NuGet.config with URL and user/PAT for GPR', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    const inputNuGetConfigPath: string = path.join(
-      fakeSourcesDirForTesting,
-      'nuget.config'
-    );
-    fs.writeFileSync(inputNuGetConfigPath, emptyNuGetConfig);
-    await auth.configAuthentication(
-      'https://nuget.pkg.github.com/OwnerName/index.json',
-      '',
-      fakeSourcesDirForTesting
-    );
-    expect(fs.existsSync(nugetConfigFile)).toBe(true);
-    expect(
-      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
-    ).toMatchSnapshot();
-  });
-
-  it('Existing config w/ no GPR sources, sets up a full NuGet.config with URL and user/PAT for GPR', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    const inputNuGetConfigPath: string = path.join(
-      fakeSourcesDirForTesting,
-      'nuget.config'
-    );
-    fs.writeFileSync(inputNuGetConfigPath, nugetorgNuGetConfig);
-    await auth.configAuthentication(
-      'https://nuget.pkg.github.com/OwnerName/index.json',
-      '',
-      fakeSourcesDirForTesting
-    );
-    expect(fs.existsSync(nugetConfigFile)).toBe(true);
-    expect(
-      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
-    ).toMatchSnapshot();
-  });
-
-  it('Existing config w/ only GPR source, sets up a partial NuGet.config user/PAT for GPR', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    const inputNuGetConfigPath: string = path.join(
-      fakeSourcesDirForTesting,
-      'nuget.config'
-    );
-    fs.writeFileSync(inputNuGetConfigPath, gprNuGetConfig);
-    await auth.configAuthentication(
-      'https://nuget.pkg.github.com/OwnerName/index.json',
-      '',
-      fakeSourcesDirForTesting
-    );
-    expect(fs.existsSync(nugetConfigFile)).toBe(true);
-    expect(
-      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
-    ).toMatchSnapshot();
-  });
-
-  it('Existing config w/ GPR source and NuGet.org, sets up a partial NuGet.config user/PAT for GPR', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    const inputNuGetConfigPath: string = path.join(
-      fakeSourcesDirForTesting,
-      'nuget.config'
-    );
-    fs.writeFileSync(inputNuGetConfigPath, gprnugetorgNuGetConfig);
-    await auth.configAuthentication(
-      'https://nuget.pkg.github.com/OwnerName/index.json',
-      '',
-      fakeSourcesDirForTesting
-    );
-    expect(fs.existsSync(nugetConfigFile)).toBe(true);
-    expect(
-      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
-    ).toMatchSnapshot();
-  });
-
-  it('Existing config w/ two GPR sources, sets up a partial NuGet.config user/PAT for GPR', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    const inputNuGetConfigPath: string = path.join(
-      fakeSourcesDirForTesting,
-      'nuget.config'
-    );
-    fs.writeFileSync(inputNuGetConfigPath, twogprNuGetConfig);
-    await auth.configAuthentication(
-      'https://nuget.pkg.github.com',
-      '',
-      fakeSourcesDirForTesting
-    );
-    expect(fs.existsSync(nugetConfigFile)).toBe(true);
-    expect(
-      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
-    ).toMatchSnapshot();
-  });
-
-  it('Existing config w/ spaces in key, throws for now', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    const inputNuGetConfigPath: string = path.join(
-      fakeSourcesDirForTesting,
-      'nuget.config'
-    );
-    fs.writeFileSync(inputNuGetConfigPath, spaceNuGetConfig);
-    let thrown = false;
-    try {
-      await auth.configAuthentication(
-        'https://nuget.pkg.github.com/OwnerName/index.json',
-        '',
-        fakeSourcesDirForTesting
-      );
-    } catch {
-      thrown = true;
-    }
-    expect(thrown).toBe(true);
-  });
-
-  it('Existing config not in repo root, sets up a partial NuGet.config user/PAT for GPR', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    const inputNuGetConfigDirectory: string = path.join(
-      fakeSourcesDirForTesting,
-      'subfolder'
-    );
-    const inputNuGetConfigPath: string = path.join(
-      inputNuGetConfigDirectory,
-      'nuget.config'
-    );
-    fs.mkdirSync(inputNuGetConfigDirectory, {recursive: true});
-    fs.writeFileSync(inputNuGetConfigPath, gprNuGetConfig);
-    await auth.configAuthentication(
-      'https://nuget.pkg.github.com/OwnerName/index.json',
-      'subfolder/nuget.config',
-      fakeSourcesDirForTesting
-    );
-    expect(fs.existsSync(nugetConfigFile)).toBe(true);
-    expect(
-      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
-    ).toMatchSnapshot();
-  });
-
-  it('Existing config w/ only Azure Artifacts source, sets up a partial NuGet.config user/PAT for GPR', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    const inputNuGetConfigPath: string = path.join(
-      fakeSourcesDirForTesting,
-      'nuget.config'
-    );
-    fs.writeFileSync(inputNuGetConfigPath, azureartifactsNuGetConfig);
-    await auth.configAuthentication(
-      'https://pkgs.dev.azure.com/amullans/_packaging/GitHubBuilds/nuget/v3/index.json',
-      '',
-      fakeSourcesDirForTesting
-    );
-    expect(fs.existsSync(nugetConfigFile)).toBe(true);
-    expect(
-      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
-    ).toMatchSnapshot();
-  });
-
-  it('Existing config w/ Azure Artifacts source and NuGet.org, sets up a partial NuGet.config user/PAT for GPR', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    const inputNuGetConfigPath: string = path.join(
-      fakeSourcesDirForTesting,
-      'nuget.config'
-    );
-    fs.writeFileSync(inputNuGetConfigPath, azureartifactsnugetorgNuGetConfig);
-    await auth.configAuthentication(
-      'https://pkgs.dev.azure.com/amullans/_packaging/GitHubBuilds/nuget/v3/index.json',
-      '',
-      fakeSourcesDirForTesting
-    );
-    expect(fs.existsSync(nugetConfigFile)).toBe(true);
-    expect(
-      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
-    ).toMatchSnapshot();
-  });
-
-  it('No existing config, sets up a full NuGet.config with URL and token for other source', async () => {
-    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
-    await auth.configAuthentication(
-      'https://pkgs.dev.azure.com/amullans/_packaging/GitHubBuilds/nuget/v3/index.json',
-      '',
-      fakeSourcesDirForTesting
-    );
-    expect(fs.existsSync(nugetConfigFile)).toBe(true);
-    expect(
-      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
-    ).toMatchSnapshot();
-  });
-});
+import * as io from '@actions/io';
+import fs from 'fs';
+import path from 'path';
+
+const fakeSourcesDirForTesting = path.join(
+  __dirname,
+  'runner',
+  path.join(Math.random().toString(36).substring(7)),
+  's'
+);
+
+const invalidNuGetConfig = `<?xml version="1.0" encoding="utf-8"?>`;
+
+const emptyNuGetConfig = `<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+</configuration>`;
+
+const nugetorgNuGetConfig = `<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
+  </packageSources>
+</configuration>`;
+
+const gprnugetorgNuGetConfig = `<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="GPR" value="https://nuget.pkg.github.com/OwnerName/index.json" protocolVersion="3" />
+    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
+  </packageSources>
+</configuration>`;
+
+const gprNuGetConfig = `<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="GPR" value="https://nuget.pkg.github.com/OwnerName/index.json" protocolVersion="3" />
+  </packageSources>
+</configuration>`;
+
+const twogprNuGetConfig = `<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="GPR-GitHub" value="https://nuget.pkg.github.com/OwnerName/index.json" protocolVersion="3" />
+    <add key="GPR-Actions" value="https://nuget.pkg.github.com/actions/index.json" protocolVersion="3" />
+  </packageSources>
+</configuration>`;
+
+const spaceNuGetConfig = `<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="GPR GitHub" value="https://nuget.pkg.github.com/OwnerName/index.json" protocolVersion="3" />
+  </packageSources>
+</configuration>`;
+
+const azureartifactsNuGetConfig = `<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="AzureArtifacts" value="https://pkgs.dev.azure.com/amullans/_packaging/GitHubBuilds/nuget/v3/index.json" protocolVersion="3" />
+  </packageSources>
+</configuration>`;
+
+const azureartifactsnugetorgNuGetConfig = `<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <add key="AzureArtifacts" value="https://pkgs.dev.azure.com/amullans/_packaging/GitHubBuilds/nuget/v3/index.json" protocolVersion="3" />
+    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
+  </packageSources>
+</configuration>`;
+
+// We want a NuGet.config one level above the sources directory, so it doesn't trample a user's NuGet.config but is still picked up by NuGet/dotnet.
+const nugetConfigFile = path.join(fakeSourcesDirForTesting, '../nuget.config');
+
+process.env['GITHUB_REPOSITORY'] = 'OwnerName/repo';
+import * as auth from '../src/authutil';
+
+describe('authutil tests', () => {
+  beforeEach(async () => {
+    await io.rmRF(fakeSourcesDirForTesting);
+    await io.mkdirP(fakeSourcesDirForTesting);
+  }, 30000);
+
+  afterAll(async () => {
+    await io.rmRF(fakeSourcesDirForTesting);
+  }, 30000);
+
+  beforeEach(() => {
+    if (fs.existsSync(nugetConfigFile)) {
+      fs.unlinkSync(nugetConfigFile);
+    }
+    process.env['INPUT_OWNER'] = '';
+    process.env['NUGET_AUTH_TOKEN'] = '';
+  });
+
+  it('no existing config, sets up a full NuGet.config with URL and user/PAT for GPR', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    auth.configAuthentication(
+      'https://nuget.pkg.github.com/OwnerName/index.json',
+      '',
+      fakeSourcesDirForTesting
+    );
+    expect(fs.existsSync(nugetConfigFile)).toBe(true);
+    expect(
+      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
+    ).toMatchSnapshot();
+  });
+
+  it('no existing config, auth token environment variable not provided, throws', async () => {
+    let thrown = false;
+    try {
+      auth.configAuthentication(
+        'https://nuget.pkg.github.com/OwnerName/index.json',
+        '',
+        fakeSourcesDirForTesting
+      );
+    } catch {
+      thrown = true;
+    }
+    expect(thrown).toBe(true);
+  });
+
+  it('no existing config, sets up a full NuGet.config with URL and other owner/PAT for GPR', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    process.env['INPUT_OWNER'] = 'otherorg';
+    auth.configAuthentication(
+      'https://nuget.pkg.github.com/otherorg/index.json',
+      '',
+      fakeSourcesDirForTesting
+    );
+    expect(fs.existsSync(nugetConfigFile)).toBe(true);
+    expect(
+      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
+    ).toMatchSnapshot();
+  });
+
+  it('existing config (invalid), tries to parse an invalid NuGet.config and throws', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    const inputNuGetConfigPath: string = path.join(
+      fakeSourcesDirForTesting,
+      'nuget.config'
+    );
+    fs.writeFileSync(inputNuGetConfigPath, invalidNuGetConfig);
+    let thrown = false;
+    try {
+      auth.configAuthentication(
+        'https://nuget.pkg.github.com/OwnerName/index.json',
+        '',
+        fakeSourcesDirForTesting
+      );
+    } catch {
+      thrown = true;
+    }
+    expect(thrown).toBe(true);
+  });
+
+  it('existing config w/ no sources, sets up a full NuGet.config with URL and user/PAT for GPR', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    const inputNuGetConfigPath: string = path.join(
+      fakeSourcesDirForTesting,
+      'nuget.config'
+    );
+    fs.writeFileSync(inputNuGetConfigPath, emptyNuGetConfig);
+    auth.configAuthentication(
+      'https://nuget.pkg.github.com/OwnerName/index.json',
+      '',
+      fakeSourcesDirForTesting
+    );
+    expect(fs.existsSync(nugetConfigFile)).toBe(true);
+    expect(
+      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
+    ).toMatchSnapshot();
+  });
+
+  it('existing config w/ no GPR sources, sets up a full NuGet.config with URL and user/PAT for GPR', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    const inputNuGetConfigPath: string = path.join(
+      fakeSourcesDirForTesting,
+      'nuget.config'
+    );
+    fs.writeFileSync(inputNuGetConfigPath, nugetorgNuGetConfig);
+    auth.configAuthentication(
+      'https://nuget.pkg.github.com/OwnerName/index.json',
+      '',
+      fakeSourcesDirForTesting
+    );
+    expect(fs.existsSync(nugetConfigFile)).toBe(true);
+    expect(
+      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
+    ).toMatchSnapshot();
+  });
+
+  it('existing config w/ only GPR source, sets up a partial NuGet.config user/PAT for GPR', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    const inputNuGetConfigPath: string = path.join(
+      fakeSourcesDirForTesting,
+      'nuget.config'
+    );
+    fs.writeFileSync(inputNuGetConfigPath, gprNuGetConfig);
+    auth.configAuthentication(
+      'https://nuget.pkg.github.com/OwnerName/index.json',
+      '',
+      fakeSourcesDirForTesting
+    );
+    expect(fs.existsSync(nugetConfigFile)).toBe(true);
+    expect(
+      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
+    ).toMatchSnapshot();
+  });
+
+  it('existing config w/ GPR source and NuGet.org, sets up a partial NuGet.config user/PAT for GPR', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    const inputNuGetConfigPath: string = path.join(
+      fakeSourcesDirForTesting,
+      'nuget.config'
+    );
+    fs.writeFileSync(inputNuGetConfigPath, gprnugetorgNuGetConfig);
+    auth.configAuthentication(
+      'https://nuget.pkg.github.com/OwnerName/index.json',
+      '',
+      fakeSourcesDirForTesting
+    );
+    expect(fs.existsSync(nugetConfigFile)).toBe(true);
+    expect(
+      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
+    ).toMatchSnapshot();
+  });
+
+  it('existing config w/ two GPR sources, sets up a partial NuGet.config user/PAT for GPR', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    const inputNuGetConfigPath: string = path.join(
+      fakeSourcesDirForTesting,
+      'nuget.config'
+    );
+    fs.writeFileSync(inputNuGetConfigPath, twogprNuGetConfig);
+    auth.configAuthentication(
+      'https://nuget.pkg.github.com',
+      '',
+      fakeSourcesDirForTesting
+    );
+    expect(fs.existsSync(nugetConfigFile)).toBe(true);
+    expect(
+      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
+    ).toMatchSnapshot();
+  });
+
+  it('existing config w/ spaces in key, throws for now', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    const inputNuGetConfigPath: string = path.join(
+      fakeSourcesDirForTesting,
+      'nuget.config'
+    );
+    fs.writeFileSync(inputNuGetConfigPath, spaceNuGetConfig);
+    let thrown = false;
+    try {
+      auth.configAuthentication(
+        'https://nuget.pkg.github.com/OwnerName/index.json',
+        '',
+        fakeSourcesDirForTesting
+      );
+    } catch {
+      thrown = true;
+    }
+    expect(thrown).toBe(true);
+  });
+
+  it('existing config not in repo root, sets up a partial NuGet.config user/PAT for GPR', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    const inputNuGetConfigDirectory: string = path.join(
+      fakeSourcesDirForTesting,
+      'subfolder'
+    );
+    const inputNuGetConfigPath: string = path.join(
+      inputNuGetConfigDirectory,
+      'nuget.config'
+    );
+    fs.mkdirSync(inputNuGetConfigDirectory, {recursive: true});
+    fs.writeFileSync(inputNuGetConfigPath, gprNuGetConfig);
+    auth.configAuthentication(
+      'https://nuget.pkg.github.com/OwnerName/index.json',
+      'subfolder/nuget.config',
+      fakeSourcesDirForTesting
+    );
+    expect(fs.existsSync(nugetConfigFile)).toBe(true);
+    expect(
+      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
+    ).toMatchSnapshot();
+  });
+
+  it('existing config w/ only Azure Artifacts source, sets up a partial NuGet.config user/PAT for GPR', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    const inputNuGetConfigPath: string = path.join(
+      fakeSourcesDirForTesting,
+      'nuget.config'
+    );
+    fs.writeFileSync(inputNuGetConfigPath, azureartifactsNuGetConfig);
+    auth.configAuthentication(
+      'https://pkgs.dev.azure.com/amullans/_packaging/GitHubBuilds/nuget/v3/index.json',
+      '',
+      fakeSourcesDirForTesting
+    );
+    expect(fs.existsSync(nugetConfigFile)).toBe(true);
+    expect(
+      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
+    ).toMatchSnapshot();
+  });
+
+  it('existing config w/ Azure Artifacts source and NuGet.org, sets up a partial NuGet.config user/PAT for GPR', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    const inputNuGetConfigPath: string = path.join(
+      fakeSourcesDirForTesting,
+      'nuget.config'
+    );
+    fs.writeFileSync(inputNuGetConfigPath, azureartifactsnugetorgNuGetConfig);
+    auth.configAuthentication(
+      'https://pkgs.dev.azure.com/amullans/_packaging/GitHubBuilds/nuget/v3/index.json',
+      '',
+      fakeSourcesDirForTesting
+    );
+    expect(fs.existsSync(nugetConfigFile)).toBe(true);
+    expect(
+      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
+    ).toMatchSnapshot();
+  });
+
+  it('no existing config, sets up a full NuGet.config with URL and token for other source', async () => {
+    process.env['NUGET_AUTH_TOKEN'] = 'TEST_FAKE_AUTH_TOKEN';
+    auth.configAuthentication(
+      'https://pkgs.dev.azure.com/amullans/_packaging/GitHubBuilds/nuget/v3/index.json',
+      '',
+      fakeSourcesDirForTesting
+    );
+    expect(fs.existsSync(nugetConfigFile)).toBe(true);
+    expect(
+      fs.readFileSync(nugetConfigFile, {encoding: 'utf8'})
+    ).toMatchSnapshot();
+  });
+});

__tests__/cache-restore.test.ts

@@ -0,0 +1,101 @@
+import {readdir} from 'node:fs/promises';
+import * as cache from '@actions/cache';
+import * as core from '@actions/core';
+import * as glob from '@actions/glob';
+import {restoreCache} from '../src/cache-restore';
+import {getNuGetFolderPath} from '../src/cache-utils';
+import {lockFilePatterns} from '../src/constants';
+
+jest.mock('node:fs/promises');
+jest.mock('@actions/cache');
+jest.mock('@actions/core');
+jest.mock('@actions/glob');
+jest.mock('../src/cache-utils');
+
+describe('cache-restore tests', () => {
+  describe.each(lockFilePatterns)('restoreCache("%s")', lockFilePattern => {
+    /** Store original process.env.GITHUB_WORKSPACE */
+    let githubWorkspace: string | undefined;
+    beforeAll(() => {
+      githubWorkspace = process.env.GITHUB_WORKSPACE;
+      jest.mocked(getNuGetFolderPath).mockResolvedValue({
+        'global-packages': 'global-packages',
+        'http-cache': 'http-cache',
+        temp: 'temp',
+        'plugins-cache': 'plugins-cache'
+      });
+    });
+    beforeEach(() => {
+      process.env.GITHUB_WORKSPACE = './';
+      jest.mocked(glob.hashFiles).mockClear();
+      jest.mocked(core.saveState).mockClear();
+      jest.mocked(core.setOutput).mockClear();
+      jest.mocked(cache.restoreCache).mockClear();
+    });
+    afterEach(() => (process.env.GITHUB_WORKSPACE = githubWorkspace));
+
+    it('throws error when lock file is not found', async () => {
+      jest.mocked(glob.hashFiles).mockResolvedValue('');
+
+      await expect(restoreCache(lockFilePattern)).rejects.toThrow();
+
+      expect(jest.mocked(core.saveState)).not.toHaveBeenCalled();
+      expect(jest.mocked(core.setOutput)).not.toHaveBeenCalled();
+      expect(jest.mocked(cache.restoreCache)).not.toHaveBeenCalled();
+    });
+
+    it('does not call core.saveState("CACHE_RESULT") when cache.restoreCache() returns falsy', async () => {
+      jest.mocked(glob.hashFiles).mockResolvedValue('hash');
+      jest.mocked(cache.restoreCache).mockResolvedValue(undefined);
+
+      await restoreCache(lockFilePattern);
+
+      const expectedKey = `dotnet-cache-${process.env.RUNNER_OS}-hash`;
+      expect(jest.mocked(core.saveState)).toHaveBeenCalledWith(
+        'CACHE_KEY',
+        expectedKey
+      );
+      expect(jest.mocked(core.saveState)).not.toHaveBeenCalledWith(
+        'CACHE_RESULT',
+        expectedKey
+      );
+      expect(jest.mocked(core.setOutput)).toHaveBeenCalledWith(
+        'cache-hit',
+        false
+      );
+    });
+
+    it('calls core.saveState("CACHE_RESULT") when cache.restoreCache() returns key', async () => {
+      const expectedKey = `dotnet-cache-${process.env.RUNNER_OS}-hash`;
+      jest.mocked(glob.hashFiles).mockResolvedValue('hash');
+      jest.mocked(cache.restoreCache).mockResolvedValue(expectedKey);
+
+      await restoreCache(lockFilePattern);
+
+      expect(jest.mocked(core.saveState)).toHaveBeenCalledWith(
+        'CACHE_KEY',
+        expectedKey
+      );
+      expect(jest.mocked(core.saveState)).toHaveBeenCalledWith(
+        'CACHE_RESULT',
+        expectedKey
+      );
+      expect(jest.mocked(core.setOutput)).toHaveBeenCalledWith(
+        'cache-hit',
+        true
+      );
+    });
+
+    it('calls glob.hashFiles("/packages.lock.json") if cacheDependencyPath is falsy', async () => {
+      const expectedKey = `dotnet-cache-${process.env.RUNNER_OS}-hash`;
+      jest.mocked(glob.hashFiles).mockResolvedValue('hash');
+      jest.mocked(cache.restoreCache).mockResolvedValue(expectedKey);
+      jest.mocked(readdir).mockResolvedValue([lockFilePattern] as any);
+
+      await restoreCache('');
+
+      expect(jest.mocked(glob.hashFiles)).not.toHaveBeenCalledWith('');
+      expect(jest.mocked(glob.hashFiles)).toHaveBeenCalledWith(lockFilePattern);
+    });
+  });
+});

__tests__/cache-save.test.ts

@@ -0,0 +1,87 @@
+import * as cache from '@actions/cache';
+import * as core from '@actions/core';
+import fs from 'node:fs';
+import {run} from '../src/cache-save';
+import {getNuGetFolderPath} from '../src/cache-utils';
+
+jest.mock('@actions/cache');
+jest.mock('@actions/core');
+jest.mock('node:fs');
+jest.mock('../src/cache-utils');
+
+describe('cache-save tests', () => {
+  beforeAll(() => {
+    jest.mocked(getNuGetFolderPath).mockResolvedValue({
+      'global-packages': 'global-packages',
+      'http-cache': 'http-cache',
+      temp: 'temp',
+      'plugins-cache': 'plugins-cache'
+    });
+  });
+  beforeEach(() => {
+    jest.mocked(core.setFailed).mockClear();
+    jest.mocked(core.getState).mockClear();
+    jest.mocked(core.setOutput).mockClear();
+    jest.mocked(cache.saveCache).mockClear();
+    jest.mocked(fs.existsSync).mockClear();
+  });
+
+  it('does not save cache when inputs:cache === false', async () => {
+    jest.mocked(core.getBooleanInput).mockReturnValue(false);
+
+    await run();
+
+    expect(jest.mocked(core.setFailed)).not.toHaveBeenCalled();
+    expect(jest.mocked(core.getState)).not.toHaveBeenCalled();
+    expect(jest.mocked(fs.existsSync)).not.toHaveBeenCalled();
+    expect(jest.mocked(cache.saveCache)).not.toHaveBeenCalled();
+  });
+
+  it('does not save cache when core.getState("CACHE_KEY") returns ""', async () => {
+    jest.mocked(core.getBooleanInput).mockReturnValue(true);
+    jest.mocked(core.getState).mockReturnValue('');
+
+    await run();
+
+    expect(jest.mocked(core.setFailed)).not.toHaveBeenCalled();
+    expect(jest.mocked(core.getState)).toHaveBeenCalledTimes(2);
+    expect(jest.mocked(fs.existsSync)).not.toHaveBeenCalled();
+    expect(jest.mocked(cache.saveCache)).not.toHaveBeenCalled();
+  });
+
+  it('throws Error when cachePath not exists', async () => {
+    jest.mocked(core.getBooleanInput).mockReturnValue(true);
+    jest.mocked(core.getState).mockReturnValue('cache-key');
+    jest.mocked(fs.existsSync).mockReturnValue(false);
+
+    await run();
+
+    expect(jest.mocked(core.setFailed)).toHaveBeenCalled();
+    expect(jest.mocked(core.getState)).toHaveBeenCalledTimes(2);
+    expect(jest.mocked(cache.saveCache)).not.toHaveBeenCalled();
+  });
+
+  it('does not save cache when state.CACHE_KEY === state.CACHE_RESULT', async () => {
+    jest.mocked(core.getBooleanInput).mockReturnValue(true);
+    jest.mocked(core.getState).mockReturnValue('cache-key');
+    jest.mocked(fs.existsSync).mockReturnValue(true);
+
+    await run();
+
+    expect(jest.mocked(core.setFailed)).not.toHaveBeenCalled();
+    expect(jest.mocked(core.getState)).toHaveBeenCalledTimes(2);
+    expect(jest.mocked(cache.saveCache)).not.toHaveBeenCalled();
+  });
+
+  it('saves cache when state.CACHE_KEY !== state.CACHE_RESULT', async () => {
+    jest.mocked(core.getBooleanInput).mockReturnValue(true);
+    jest.mocked(core.getState).mockImplementation(s => s);
+    jest.mocked(fs.existsSync).mockReturnValue(true);
+
+    await run();
+
+    expect(jest.mocked(core.setFailed)).not.toHaveBeenCalled();
+    expect(jest.mocked(core.getState)).toHaveBeenCalledTimes(2);
+    expect(jest.mocked(cache.saveCache)).toHaveBeenCalled();
+  });
+});

__tests__/cache-utils.test.ts

@@ -0,0 +1,122 @@
+import * as cache from '@actions/cache';
+import * as exec from '@actions/exec';
+
+import {getNuGetFolderPath, isCacheFeatureAvailable} from '../src/cache-utils';
+
+jest.mock('@actions/cache');
+jest.mock('@actions/core');
+jest.mock('@actions/exec');
+
+describe('cache-utils tests', () => {
+  describe('getNuGetFolderPath()', () => {
+    it.each([
+      [
+        `
+http-cache: /home/codespace/.local/share/NuGet/v3-cache
+global-packages: /var/nuget
+temp: /tmp/NuGetScratch
+plugins-cache: /home/codespace/.local/share/NuGet/plugins-cache
+`,
+        {
+          'http-cache': '/home/codespace/.local/share/NuGet/v3-cache',
+          'global-packages': '/var/nuget',
+          temp: '/tmp/NuGetScratch',
+          'plugins-cache': '/home/codespace/.local/share/NuGet/plugins-cache'
+        }
+      ],
+      [
+        `
+  http-cache: /home/codespace/.local/share/NuGet/v3-cache
+  global-packages: /var/nuget
+  temp: /tmp/NuGetScratch
+  plugins-cache: /home/codespace/.local/share/NuGet/plugins-cache
+`,
+        {
+          'http-cache': '/home/codespace/.local/share/NuGet/v3-cache',
+          'global-packages': '/var/nuget',
+          temp: '/tmp/NuGetScratch',
+          'plugins-cache': '/home/codespace/.local/share/NuGet/plugins-cache'
+        }
+      ],
+      [
+        `
+http-cache: C:\\Users\\user\\AppData\\Local\\NuGet\\v3-cache
+global-packages: C:\\Users\\user\\.nuget\\packages\\
+temp: C:\\Users\\user\\AppData\\Local\\Temp\\NuGetScratch
+plugins-cache: C:\\Users\\user\\AppData\\Local\\NuGet\\plugins-cache
+        `,
+        {
+          'http-cache': 'C:\\Users\\user\\AppData\\Local\\NuGet\\v3-cache',
+          'global-packages': 'C:\\Users\\user\\.nuget\\packages\\',
+          temp: 'C:\\Users\\user\\AppData\\Local\\Temp\\NuGetScratch',
+          'plugins-cache':
+            'C:\\Users\\user\\AppData\\Local\\NuGet\\plugins-cache'
+        }
+      ],
+      [
+        `
+  http-cache: C:\\Users\\user\\AppData\\Local\\NuGet\\v3-cache
+  global-packages: C:\\Users\\user\\.nuget\\packages\\
+  temp: C:\\Users\\user\\AppData\\Local\\Temp\\NuGetScratch
+  plugins-cache: C:\\Users\\user\\AppData\\Local\\NuGet\\plugins-cache
+        `,
+        {
+          'http-cache': 'C:\\Users\\user\\AppData\\Local\\NuGet\\v3-cache',
+          'global-packages': 'C:\\Users\\user\\.nuget\\packages\\',
+          temp: 'C:\\Users\\user\\AppData\\Local\\Temp\\NuGetScratch',
+          'plugins-cache':
+            'C:\\Users\\user\\AppData\\Local\\NuGet\\plugins-cache'
+        }
+      ]
+    ])('(stdout: "%s") returns %p', async (stdout, expected) => {
+      jest
+        .mocked(exec.getExecOutput)
+        .mockResolvedValue({stdout, stderr: '', exitCode: 0});
+      const pathes = await getNuGetFolderPath();
+      expect(pathes).toStrictEqual(expected);
+    });
+
+    it.each([
+      `
+error: An invalid local resource name was provided. Provide one of the following values: http-cache, temp, global-packages, all.
+Usage: dotnet nuget locals [arguments] [options]
+Arguments:
+  Cache Location(s)  Specifies the cache location(s) to list or clear.
+<all | http-cache | global-packages | temp>
+Options:
+  -h|--help               Show help information
+  --force-english-output  Forces the application to run using an invariant, English-based culture.
+  -c|--clear              Clear the selected local resources or cache location(s).
+  -l|--list               List the selected local resources or cache location(s).
+      `,
+      'bash: dotnet: command not found',
+      ''
+    ])('(stderr: "%s", exitCode: 1) throws Error', async stderr => {
+      jest
+        .mocked(exec.getExecOutput)
+        .mockResolvedValue({stdout: '', stderr, exitCode: 1});
+      await expect(getNuGetFolderPath()).rejects.toThrow();
+    });
+  });
+
+  describe.each(['', 'https://github.com/', 'https://example.com/'])(
+    'isCacheFeatureAvailable()',
+    url => {
+      // Save & Restore env
+      let serverUrlEnv: string | undefined;
+      beforeAll(() => (serverUrlEnv = process.env['GITHUB_SERVER_URL']));
+      beforeEach(() => (process.env['GITHUB_SERVER_URL'] = url));
+      afterEach(() => (process.env['GITHUB_SERVER_URL'] = serverUrlEnv));
+
+      it('returns true when cache.isFeatureAvailable() === true', () => {
+        jest.mocked(cache.isFeatureAvailable).mockReturnValue(true);
+        expect(isCacheFeatureAvailable()).toBe(true);
+      });
+
+      it('returns false when cache.isFeatureAvailable() === false', () => {
+        jest.mocked(cache.isFeatureAvailable).mockReturnValue(false);
+        expect(isCacheFeatureAvailable()).toBe(false);
+      });
+    }
+  );
+});

__tests__/csc.test.ts

@@ -1,21 +1,45 @@
+import cscFile from '../.github/csc.json';
 describe('csc tests', () => {
-  it('Valid regular expression', async () => {
-    var cscFile = require('../.github/csc.json');
-    var regex = cscFile['problemMatcher'][0]['pattern'][0]['regexp'];
+  test('regular expression in csc.json is valid', async () => {
+    const regexPattern = cscFile['problemMatcher'][0]['pattern'][0]['regexp'];
+    const regexResultsMap = cscFile['problemMatcher'][0]['pattern'][0];
 
-    console.log(regex);
-    var re = new RegExp(regex);
+    const regex = new RegExp(regexPattern);
 
-    // Ideally we would verify that this
-    var stringsToMatch = [
+    const stringsToMatch = [
       'Program.cs(10,79): error CS1002: ; expected [/Users/zacharyeisinger/Documents/repo/setup-dotnet/__tests__/sample-broken-csproj/sample.csproj]',
       "S:\\Msbuild\\src\\Build\\Evaluation\\ExpressionShredder.cs(33,7): error CS1003: Syntax error, ',' expected [S:\\msbuild\\src\\Build\\Microsoft.Build.csproj > Properties:prop]"
     ];
+    // Expected results are calculated according to the csc matcher located in csc.json file
+    const expectedResults = [
+      {
+        file: 'Program.cs',
+        line: '10',
+        severity: 'error',
+        code: 'CS1002',
+        message: '; expected',
+        fromPath:
+          '/Users/zacharyeisinger/Documents/repo/setup-dotnet/__tests__/sample-broken-csproj/sample.csproj'
+      },
+      {
+        file: 'S:\\Msbuild\\src\\Build\\Evaluation\\ExpressionShredder.cs',
+        line: '33',
+        severity: 'error',
+        code: 'CS1003',
+        message: "Syntax error, ',' expected",
+        fromPath:
+          'S:\\msbuild\\src\\Build\\Microsoft.Build.csproj > Properties:prop'
+      }
+    ];
 
-    stringsToMatch.forEach(string => {
-      var matchStr = string.match(re);
-      console.log(matchStr);
-      expect(matchStr).toEqual(expect.anything());
+    stringsToMatch.map((string, index) => {
+      const matchedResultsArray = string.match(regex);
+      for (const propName in expectedResults[index]) {
+        const propertyIndex = regexResultsMap[propName];
+        const expectedPropValue = expectedResults[index][propName];
+        const matchedPropValue = matchedResultsArray![propertyIndex];
+        expect(matchedPropValue).toEqual(expectedPropValue);
+      }
     });
   }, 10000);
 });

__tests__/e2e-test-csproj/Test.cs

@@ -0,0 +1,18 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+
+namespace test_csproj
+{
+    [TestClass]
+    public class Test
+    {
+        [TestMethod]
+        public void TestMethod()
+        {   
+            Console.WriteLine("TestMethod");
+            int calculatedResult = 1000 / 25;
+            int expectedResult = 40;
+            Assert.AreEqual(calculatedResult, expectedResult);
+        }
+    }
+}

__tests__/e2e-test-csproj/test.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>$(TEST_TARGET_FRAMEWORK)</TargetFramework>
+    <IsPackable>false</IsPackable>
+    <DisableImplicitNuGetFallbackFolder>true</DisableImplicitNuGetFallbackFolder>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <!-- These packages will be downloaded over the network for testing proxy settings -->
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.5.0-preview-20170810-02" />
+    <PackageReference Include="MSTest.TestAdapter" Version="1.1.18" />
+    <PackageReference Include="MSTest.TestFramework" Version="1.1.18" />
+  </ItemGroup>
+
+</Project>

__tests__/installation-scripts.test.ts

@@ -0,0 +1,65 @@
+import path from 'path';
+import fs from 'fs';
+import * as hc from '@actions/http-client';
+
+const HTTP_CLIENT_OPTIONS = {allowRetries: true, maxRetries: 10} as const;
+const TEST_TIMEOUT = 30000;
+
+describe('Dotnet installation scripts tests', () => {
+  it(
+    'Uses an up to date bash download script',
+    async () => {
+      const httpCallbackClient = new hc.HttpClient(
+        'setup-dotnet-test',
+        [],
+        HTTP_CLIENT_OPTIONS
+      );
+      const response: hc.HttpClientResponse = await httpCallbackClient.get(
+        'https://dot.net/v1/dotnet-install.sh'
+      );
+      expect(response.message.statusCode).toBe(200);
+      const upToDateContents: string = await response.readBody();
+      const currentContents: string = fs
+        .readFileSync(
+          path.join(__dirname, '..', 'externals', 'install-dotnet.sh')
+        )
+        .toString();
+      expect(normalizeFileContents(currentContents)).toBe(
+        normalizeFileContents(upToDateContents)
+      );
+    },
+    TEST_TIMEOUT
+  );
+
+  it(
+    'Uses an up to date powershell download script',
+    async () => {
+      const httpCallbackClient = new hc.HttpClient(
+        'setup-dotnet-test',
+        [],
+        HTTP_CLIENT_OPTIONS
+      );
+      const response: hc.HttpClientResponse = await httpCallbackClient.get(
+        'https://dot.net/v1/dotnet-install.ps1'
+      );
+      expect(response.message.statusCode).toBe(200);
+      const upToDateContents: string = await response.readBody();
+      const currentContents: string = fs
+        .readFileSync(
+          path.join(__dirname, '..', 'externals', 'install-dotnet.ps1')
+        )
+        .toString();
+      expect(normalizeFileContents(currentContents)).toBe(
+        normalizeFileContents(upToDateContents)
+      );
+    },
+    TEST_TIMEOUT
+  );
+});
+
+function normalizeFileContents(contents: string): string {
+  return contents
+    .trim()
+    .replace(new RegExp('\r\n', 'g'), '\n')
+    .replace(new RegExp('\r', 'g'), '\n');
+}

__tests__/installer.test.ts

@@ -1,290 +1,457 @@
-import * as io from '@actions/io';
-import * as os from 'os';
-import fs from 'fs';
-import path from 'path';
 import each from 'jest-each';
-import * as hc from '@actions/http-client';
+import semver from 'semver';
+import fs from 'fs';
+import fspromises from 'fs/promises';
+import * as exec from '@actions/exec';
+import * as core from '@actions/core';
+import * as io from '@actions/io';
 import * as installer from '../src/installer';
-import {QualityOptions} from '../src/setup-dotnet';
 
 import {IS_WINDOWS} from '../src/utils';
-import {IS_LINUX} from '../src/utils';
+import {QualityOptions} from '../src/setup-dotnet';
 
-let toolDir: string;
+describe('installer tests', () => {
+  const env = process.env;
 
-if (IS_WINDOWS) {
-  toolDir = path.join(process.env['PROGRAMFILES'] + '', 'dotnet');
-} else if (IS_LINUX) {
-  toolDir = '/usr/share/dotnet';
-} else {
-  toolDir = path.join(process.env['HOME'] + '', '.dotnet');
-}
-const tempDir = path.join(__dirname, 'runner', 'temp');
+  beforeEach(() => {
+    jest.resetModules();
+    process.env = {...env};
+  });
 
-process.env['RUNNER_TOOL_CACHE'] = toolDir;
-process.env['RUNNER_TEMP'] = tempDir;
+  describe('DotnetCoreInstaller tests', () => {
+    const getExecOutputSpy = jest.spyOn(exec, 'getExecOutput');
+    const warningSpy = jest.spyOn(core, 'warning');
+    const whichSpy = jest.spyOn(io, 'which');
+    const maxSatisfyingSpy = jest.spyOn(semver, 'maxSatisfying');
+    const chmodSyncSpy = jest.spyOn(fs, 'chmodSync');
+    const readdirSpy = jest.spyOn(fspromises, 'readdir');
 
-describe('DotnetCoreInstaller tests', () => {
-  beforeAll(async () => {
-    process.env.RUNNER_TOOL_CACHE = toolDir;
-    process.env.DOTNET_INSTALL_DIR = toolDir;
-    process.env.RUNNER_TEMP = tempDir;
-    process.env.DOTNET_ROOT = '';
-    try {
-      await io.rmRF(`${toolDir}/*`);
-      await io.rmRF(`${tempDir}/*`);
-    } catch (err) {
-      console.log(
-        `Failed to remove test directories, check the error message:${os.EOL}`,
-        err.message
-      );
-    }
-  }, 30000);
+    describe('installDotnet() tests', () => {
+      beforeAll(() => {
+        whichSpy.mockImplementation(() => Promise.resolve('PathToShell'));
+        chmodSyncSpy.mockImplementation(() => {});
+        readdirSpy.mockImplementation(() => Promise.resolve([]));
+      });
 
-  afterEach(async () => {
-    try {
-      await io.rmRF(`${toolDir}/*`);
-      await io.rmRF(`${tempDir}/*`);
-    } catch (err) {
-      console.log(
-        `Failed to remove test directories, check the error message:${os.EOL}`,
-        err.message
-      );
-    }
-  }, 30000);
+      afterAll(() => {
+        jest.resetAllMocks();
+      });
 
-  it('Aquires multiple versions of dotnet', async () => {
-    const versions = ['2.2.207', '3.1.120'];
+      it('should throw the error in case of non-zero exit code of the installation script. The error message should contain logs.', async () => {
+        const inputVersion = '3.1.100';
+        const inputQuality = '' as QualityOptions;
+        const errorMessage = 'fictitious error message!';
 
-    for (const version of versions) {
-      await getDotnet(version);
-    }
-    expect(fs.existsSync(path.join(toolDir, 'sdk', '2.2.207'))).toBe(true);
-    expect(fs.existsSync(path.join(toolDir, 'sdk', '3.1.120'))).toBe(true);
+        getExecOutputSpy.mockImplementation(() => {
+          return Promise.resolve({
+            exitCode: 1,
+            stdout: '',
+            stderr: errorMessage
+          });
+        });
 
-    if (IS_WINDOWS) {
-      expect(fs.existsSync(path.join(toolDir, 'dotnet.exe'))).toBe(true);
-    } else {
-      expect(fs.existsSync(path.join(toolDir, 'dotnet'))).toBe(true);
-    }
+        const dotnetInstaller = new installer.DotnetCoreInstaller(
+          inputVersion,
+          inputQuality
+        );
+        await expect(dotnetInstaller.installDotnet()).rejects.toThrow(
+          `Failed to install dotnet, exit code: 1. ${errorMessage}`
+        );
+      });
 
-    expect(process.env.DOTNET_ROOT).toBeDefined;
-    expect(process.env.PATH).toBeDefined;
-    expect(process.env.DOTNET_ROOT).toBe(toolDir);
-    expect(process.env.PATH?.startsWith(toolDir)).toBe(true);
-  }, 600000);
+      it('should return version of .NET SDK after installation complete', async () => {
+        const inputVersion = '3.1.100';
+        const inputQuality = '' as QualityOptions;
+        const stdout = `Fictitious dotnet version ${inputVersion} is installed`;
+        getExecOutputSpy.mockImplementation(() => {
+          return Promise.resolve({
+            exitCode: 0,
+            stdout: `${stdout}`,
+            stderr: ''
+          });
+        });
+        maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
-  it('Acquires version of dotnet if no matching version is installed', async () => {
-    await getDotnet('3.1.201');
-    expect(fs.existsSync(path.join(toolDir, 'sdk', '3.1.201'))).toBe(true);
-    if (IS_WINDOWS) {
-      expect(fs.existsSync(path.join(toolDir, 'dotnet.exe'))).toBe(true);
-    } else {
-      expect(fs.existsSync(path.join(toolDir, 'dotnet'))).toBe(true);
-    }
+        const dotnetInstaller = new installer.DotnetCoreInstaller(
+          inputVersion,
+          inputQuality
+        );
+        const installedVersion = await dotnetInstaller.installDotnet();
 
-    expect(process.env.DOTNET_ROOT).toBeDefined;
-    expect(process.env.PATH).toBeDefined;
-    expect(process.env.DOTNET_ROOT).toBe(toolDir);
-    expect(process.env.PATH?.startsWith(toolDir)).toBe(true);
-  }, 600000); //This needs some time to download on "slower" internet connections
+        expect(installedVersion).toBe(inputVersion);
+      });
 
-  it('Acquires generic version of dotnet if no matching version is installed', async () => {
-    await getDotnet('3.1');
-    var directory = fs
-      .readdirSync(path.join(toolDir, 'sdk'))
-      .filter(fn => fn.startsWith('3.1.'));
-    expect(directory.length > 0).toBe(true);
-    if (IS_WINDOWS) {
-      expect(fs.existsSync(path.join(toolDir, 'dotnet.exe'))).toBe(true);
-    } else {
-      expect(fs.existsSync(path.join(toolDir, 'dotnet'))).toBe(true);
-    }
+      it(`should supply 'version' argument to the installation script if supplied version is in A.B.C syntax`, async () => {
+        const inputVersion = '6.0.300';
+        const inputQuality = '' as QualityOptions;
+        const stdout = `Fictitious dotnet version ${inputVersion} is installed`;
 
-    expect(process.env.DOTNET_ROOT).toBeDefined;
-    expect(process.env.PATH).toBeDefined;
-    expect(process.env.DOTNET_ROOT).toBe(toolDir);
-    expect(process.env.PATH?.startsWith(toolDir)).toBe(true);
-  }, 600000); //This needs some time to download on "slower" internet connections
+        getExecOutputSpy.mockImplementation(() => {
+          return Promise.resolve({
+            exitCode: 0,
+            stdout: `${stdout}`,
+            stderr: ''
+          });
+        });
+        maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
-  it('Returns string with installed SDK version', async () => {
-    const version = '3.1.120';
-    let installedVersion: string;
+        const dotnetInstaller = new installer.DotnetCoreInstaller(
+          inputVersion,
+          inputQuality
+        );
 
-    installedVersion = await getDotnet(version);
+        await dotnetInstaller.installDotnet();
 
-    expect(installedVersion).toBe('3.1.120');
-  }, 600000);
+        const scriptArguments = (
+          getExecOutputSpy.mock.calls[0][1] as string[]
+        ).join(' ');
+        const expectedArgument = IS_WINDOWS
+          ? `-Version ${inputVersion}`
+          : `--version ${inputVersion}`;
 
-  it('Throws if no location contains correct dotnet version', async () => {
-    await expect(async () => {
-      await getDotnet('1000.0.0');
-    }).rejects.toThrow();
-  }, 30000);
+        expect(scriptArguments).toContain(expectedArgument);
+      });
 
-  it('Uses an up to date bash download script', async () => {
-    const httpCallbackClient = new hc.HttpClient('setup-dotnet-test', [], {
-      allowRetries: true,
-      maxRetries: 3
-    });
-    const response: hc.HttpClientResponse = await httpCallbackClient.get(
-      'https://dot.net/v1/dotnet-install.sh'
-    );
-    expect(response.message.statusCode).toBe(200);
-    const upToDateContents: string = await response.readBody();
-    const currentContents: string = fs
-      .readFileSync(
-        path.join(__dirname, '..', 'externals', 'install-dotnet.sh')
-      )
-      .toString();
-    expect(normalizeFileContents(currentContents)).toBe(
-      normalizeFileContents(upToDateContents)
-    );
-  }, 30000);
+      it(`should warn if the 'quality' input is set and the supplied version is in A.B.C syntax`, async () => {
+        const inputVersion = '6.0.300';
+        const inputQuality = 'ga' as QualityOptions;
+        const stdout = `Fictitious dotnet version ${inputVersion} is installed`;
+        getExecOutputSpy.mockImplementation(() => {
+          return Promise.resolve({
+            exitCode: 0,
+            stdout: `${stdout}`,
+            stderr: ''
+          });
+        });
+        maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
-  it('Uses an up to date powershell download script', async () => {
-    var httpCallbackClient = new hc.HttpClient('setup-dotnet-test', [], {
-      allowRetries: true,
-      maxRetries: 3
-    });
-    const response: hc.HttpClientResponse = await httpCallbackClient.get(
-      'https://dot.net/v1/dotnet-install.ps1'
-    );
-    expect(response.message.statusCode).toBe(200);
-    const upToDateContents: string = await response.readBody();
-    const currentContents: string = fs
-      .readFileSync(
-        path.join(__dirname, '..', 'externals', 'install-dotnet.ps1')
-      )
-      .toString();
-    expect(normalizeFileContents(currentContents)).toBe(
-      normalizeFileContents(upToDateContents)
-    );
-  }, 30000);
-});
+        const dotnetInstaller = new installer.DotnetCoreInstaller(
+          inputVersion,
+          inputQuality
+        );
 
-describe('DotnetVersionResolver tests', () => {
-  each([
-    '3.1',
-    '3.x',
-    '3.1.x',
-    '3.1.*',
-    '3.1.X',
-    '3.1.2',
-    '3.1.0-preview1'
-  ]).test(
-    "if valid version: '%s' is supplied, it should return version object with some value",
-    async version => {
-      const dotnetVersionResolver = new installer.DotnetVersionResolver(
-        version
-      );
-      const versionObject = await dotnetVersionResolver.createDotNetVersion();
+        await dotnetInstaller.installDotnet();
 
-      expect(!!versionObject.value).toBeTruthy;
-    }
-  );
+        expect(warningSpy).toHaveBeenCalledWith(
+          `The 'dotnet-quality' input can be used only with .NET SDK version in A.B, A.B.x, A, A.x and A.B.Cxx formats where the major tag is higher than 5. You specified: ${inputVersion}. 'dotnet-quality' input is ignored.`
+        );
+      });
 
-  each([
-    '.',
-    '..',
-    ' . ',
-    '. ',
-    ' .',
-    ' . . ',
-    ' .. ',
-    ' .  ',
-    '-1.-1',
-    '-1',
-    '-1.-1.-1',
-    '..3',
-    '1..3',
-    '1..',
-    '.2.3',
-    '.2.x',
-    '*.',
-    '1.2.',
-    '1.2.-abc',
-    'a.b',
-    'a.b.c',
-    'a.b.c-preview',
-    ' 0 . 1 . 2 ',
-    'invalid'
-  ]).test(
-    "if invalid version: '%s' is supplied, it should throw",
-    async version => {
-      const dotnetVersionResolver = new installer.DotnetVersionResolver(
-        version
+      it(`should warn if the 'quality' input is set and version isn't in A.B.C syntax but major tag is lower then 6`, async () => {
+        const inputVersion = '3.1';
+        const inputQuality = 'ga' as QualityOptions;
+        const stdout = `Fictitious dotnet version 3.1.100 is installed`;
+
+        getExecOutputSpy.mockImplementation(() => {
+          return Promise.resolve({
+            exitCode: 0,
+            stdout: `${stdout}`,
+            stderr: ''
+          });
+        });
+        maxSatisfyingSpy.mockImplementation(() => inputVersion);
+
+        const dotnetInstaller = new installer.DotnetCoreInstaller(
+          inputVersion,
+          inputQuality
+        );
+
+        await dotnetInstaller.installDotnet();
+
+        expect(warningSpy).toHaveBeenCalledWith(
+          `The 'dotnet-quality' input can be used only with .NET SDK version in A.B, A.B.x, A, A.x and A.B.Cxx formats where the major tag is higher than 5. You specified: ${inputVersion}. 'dotnet-quality' input is ignored.`
+        );
+      });
+
+      each(['6', '6.0', '6.0.x', '6.0.*', '6.0.X']).test(
+        `should supply 'quality' argument to the installation script if quality input is set and version (%s) is not in A.B.C syntax`,
+        async inputVersion => {
+          const inputQuality = 'ga' as QualityOptions;
+          const exitCode = 0;
+          const stdout = `Fictitious dotnet version 6.0.0 is installed`;
+          getExecOutputSpy.mockImplementation(() => {
+            return Promise.resolve({
+              exitCode: exitCode,
+              stdout: `${stdout}`,
+              stderr: ''
+            });
+          });
+          maxSatisfyingSpy.mockImplementation(() => inputVersion);
+
+          const dotnetInstaller = new installer.DotnetCoreInstaller(
+            inputVersion,
+            inputQuality
+          );
+
+          await dotnetInstaller.installDotnet();
+
+          const scriptArguments = (
+            getExecOutputSpy.mock.calls[0][1] as string[]
+          ).join(' ');
+          const expectedArgument = IS_WINDOWS
+            ? `-Quality ${inputQuality}`
+            : `--quality ${inputQuality}`;
+
+          expect(scriptArguments).toContain(expectedArgument);
+        }
       );
 
-      await expect(
-        async () => await dotnetVersionResolver.createDotNetVersion()
-      ).rejects.toThrow();
-    }
-  );
+      each(['6', '6.0', '6.0.x', '6.0.*', '6.0.X']).test(
+        `should supply 'channel' argument to the installation script if version (%s) isn't in A.B.C syntax`,
+        async inputVersion => {
+          const inputQuality = '' as QualityOptions;
+          const exitCode = 0;
+          const stdout = `Fictitious dotnet version 6.0.0 is installed`;
+          getExecOutputSpy.mockImplementation(() => {
+            return Promise.resolve({
+              exitCode: exitCode,
+              stdout: `${stdout}`,
+              stderr: ''
+            });
+          });
+          maxSatisfyingSpy.mockImplementation(() => inputVersion);
 
-  each(['3.1', '3.1.x', '3.1.*', '3.1.X']).test(
-    "if version: '%s' that can be resolved to 'channel' option is supplied, it should set quality flag to 'true' and type to 'channel' in version object",
-    async version => {
-      const dotnetVersionResolver = new installer.DotnetVersionResolver(
-        version
+          const dotnetInstaller = new installer.DotnetCoreInstaller(
+            inputVersion,
+            inputQuality
+          );
+
+          await dotnetInstaller.installDotnet();
+
+          const scriptArguments = (
+            getExecOutputSpy.mock.calls[0][1] as string[]
+          ).join(' ');
+          const expectedArgument = IS_WINDOWS
+            ? `-Channel 6.0`
+            : `--channel 6.0`;
+
+          expect(scriptArguments).toContain(expectedArgument);
+        }
       );
-      const versionObject = await dotnetVersionResolver.createDotNetVersion();
-
-      expect(versionObject.type.toLowerCase().includes('channel')).toBeTruthy;
-      expect(versionObject.qualityFlag).toBeTruthy;
-    }
-  );
-
-  each(['3.1.2', '3.1.0-preview1']).test(
-    "if version: '%s' that can be resolved to 'version' option is supplied, it should set quality flag to 'false' and type to 'version' in version object",
-    async version => {
-      const dotnetVersionResolver = new installer.DotnetVersionResolver(
-        version
-      );
-      const versionObject = await dotnetVersionResolver.createDotNetVersion();
-
-      expect(versionObject.type.toLowerCase().includes('version')).toBeTruthy;
-      expect(versionObject.qualityFlag).toBeFalsy;
-    }
-  );
-
-  each(['3.1.2', '3.1']).test(
-    'it should create proper line arguments for powershell/bash installation scripts',
-    async version => {
-      const dotnetVersionResolver = new installer.DotnetVersionResolver(
-        version
-      );
-      const versionObject = await dotnetVersionResolver.createDotNetVersion();
-      const windowsRegEx = new RegExp(/^-[VC]/);
-      const nonWindowsRegEx = new RegExp(/^--[vc]/);
 
       if (IS_WINDOWS) {
-        expect(windowsRegEx.test(versionObject.type)).toBeTruthy;
-        expect(nonWindowsRegEx.test(versionObject.type)).toBeFalsy;
-      } else {
-        expect(nonWindowsRegEx.test(versionObject.type)).toBeTruthy;
-        expect(windowsRegEx.test(versionObject.type)).toBeFalsy;
+        it(`should supply '-ProxyAddress' argument to the installation script if env.variable 'https_proxy' is set`, async () => {
+          process.env['https_proxy'] = 'https://proxy.com';
+          const inputVersion = '6.0.100';
+          const inputQuality = '' as QualityOptions;
+          const stdout = `Fictitious dotnet version ${inputVersion} is installed`;
+
+          getExecOutputSpy.mockImplementation(() => {
+            return Promise.resolve({
+              exitCode: 0,
+              stdout: `${stdout}`,
+              stderr: ''
+            });
+          });
+          maxSatisfyingSpy.mockImplementation(() => inputVersion);
+
+          const dotnetInstaller = new installer.DotnetCoreInstaller(
+            inputVersion,
+            inputQuality
+          );
+
+          await dotnetInstaller.installDotnet();
+
+          const scriptArguments = (
+            getExecOutputSpy.mock.calls[0][1] as string[]
+          ).join(' ');
+
+          expect(scriptArguments).toContain(
+            `-ProxyAddress ${process.env['https_proxy']}`
+          );
+        });
+
+        it(`should supply '-ProxyBypassList' argument to the installation script if env.variable 'no_proxy' is set`, async () => {
+          process.env['no_proxy'] = 'first.url,second.url';
+          const inputVersion = '6.0.100';
+          const inputQuality = '' as QualityOptions;
+          const stdout = `Fictitious dotnet version 6.0.0 is installed`;
+
+          getExecOutputSpy.mockImplementation(() => {
+            return Promise.resolve({
+              exitCode: 0,
+              stdout: `${stdout}`,
+              stderr: ''
+            });
+          });
+          maxSatisfyingSpy.mockImplementation(() => inputVersion);
+
+          const dotnetInstaller = new installer.DotnetCoreInstaller(
+            inputVersion,
+            inputQuality
+          );
+
+          await dotnetInstaller.installDotnet();
+
+          const scriptArguments = (
+            getExecOutputSpy.mock.calls[0][1] as string[]
+          ).join(' ');
+
+          expect(scriptArguments).toContain(
+            `-ProxyBypassList ${process.env['no_proxy']}`
+          );
+        });
       }
-    }
-  );
+    });
+
+    describe('addToPath() tests', () => {
+      it(`should export DOTNET_ROOT env.var with value from DOTNET_INSTALL_DIR env.var`, async () => {
+        process.env['DOTNET_INSTALL_DIR'] = 'fictitious/dotnet/install/dir';
+        installer.DotnetCoreInstaller.addToPath();
+        const dotnet_root = process.env['DOTNET_ROOT'];
+        expect(dotnet_root).toBe(process.env['DOTNET_INSTALL_DIR']);
+      });
+
+      it(`should export value from DOTNET_INSTALL_DIR env.var to the PATH`, async () => {
+        process.env['DOTNET_INSTALL_DIR'] = 'fictitious/dotnet/install/dir';
+        installer.DotnetCoreInstaller.addToPath();
+        const path = process.env['PATH'];
+        expect(path).toContain(process.env['DOTNET_INSTALL_DIR']);
+      });
+    });
+  });
+
+  describe('DotnetVersionResolver tests', () => {
+    describe('createDotNetVersion() tests', () => {
+      each([
+        '3.1',
+        '3.x',
+        '3.1.x',
+        '3.1.*',
+        '3.1.X',
+        '3.1.2',
+        '3.1.0-preview1',
+        '6.0.2xx'
+      ]).test(
+        'if valid version is supplied (%s), it should return version object with some value',
+        async version => {
+          const dotnetVersionResolver = new installer.DotnetVersionResolver(
+            version
+          );
+          const versionObject =
+            await dotnetVersionResolver.createDotNetVersion();
+
+          expect(!!versionObject.value).toBe(true);
+        }
+      );
+
+      each([
+        '.',
+        '..',
+        ' . ',
+        '. ',
+        ' .',
+        ' . . ',
+        ' .. ',
+        ' .  ',
+        '-1.-1',
+        '-1',
+        '-1.-1.-1',
+        '..3',
+        '1..3',
+        '1..',
+        '.2.3',
+        '.2.x',
+        '*.',
+        '1.2.',
+        '1.2.-abc',
+        'a.b',
+        'a.b.c',
+        'a.b.c-preview',
+        ' 0 . 1 . 2 ',
+        'invalid'
+      ]).test(
+        'if invalid version is supplied (%s), it should throw',
+        async version => {
+          const dotnetVersionResolver = new installer.DotnetVersionResolver(
+            version
+          );
+
+          await expect(
+            async () => await dotnetVersionResolver.createDotNetVersion()
+          ).rejects.toThrow();
+        }
+      );
+
+      each(['3', '3.1', '3.1.x', '3.1.*', '3.1.X', '6.0.2xx']).test(
+        "if version that can be resolved to 'channel' option is supplied (%s), it should set type to 'channel' in version object",
+        async version => {
+          const dotnetVersionResolver = new installer.DotnetVersionResolver(
+            version
+          );
+          const versionObject =
+            await dotnetVersionResolver.createDotNetVersion();
+
+          expect(versionObject.type.toLowerCase().includes('channel')).toBe(
+            true
+          );
+        }
+      );
+
+      each(['6.0', '6.0.x', '6.0.*', '6.0.X', '6.0.2xx']).test(
+        "if version that can be resolved to 'channel' option is supplied and its major tag is >= 6 (%s), it should set type to 'channel' and qualityFlag to 'true' in version object",
+        async version => {
+          const dotnetVersionResolver = new installer.DotnetVersionResolver(
+            version
+          );
+          const versionObject =
+            await dotnetVersionResolver.createDotNetVersion();
+
+          expect(versionObject.type.toLowerCase().includes('channel')).toBe(
+            true
+          );
+          expect(versionObject.qualityFlag).toBe(true);
+        }
+      );
+
+      each(['3.1.2', '3.1.0-preview1']).test(
+        "if version that can be resolved to 'version' option is supplied (%s), it should set quality flag to 'false' and type to 'version' in version object",
+        async version => {
+          const dotnetVersionResolver = new installer.DotnetVersionResolver(
+            version
+          );
+          const versionObject =
+            await dotnetVersionResolver.createDotNetVersion();
+
+          expect(versionObject.type.toLowerCase().includes('version')).toBe(
+            true
+          );
+          expect(versionObject.qualityFlag).toBe(false);
+        }
+      );
+
+      each(['3.1.2', '3.1']).test(
+        'it should create proper line arguments for powershell/bash installation scripts',
+        async version => {
+          const dotnetVersionResolver = new installer.DotnetVersionResolver(
+            version
+          );
+          const versionObject =
+            await dotnetVersionResolver.createDotNetVersion();
+          const windowsRegEx = new RegExp(/^-(Version|Channel)/);
+          const nonWindowsRegEx = new RegExp(/^--(version|channel)/);
+
+          if (IS_WINDOWS) {
+            expect(windowsRegEx.test(versionObject.type)).toBe(true);
+            expect(nonWindowsRegEx.test(versionObject.type)).toBe(false);
+          } else {
+            expect(nonWindowsRegEx.test(versionObject.type)).toBe(true);
+            expect(windowsRegEx.test(versionObject.type)).toBe(false);
+          }
+        }
+      );
+
+      it(`should throw if dotnet-version is supplied in A.B.Cxx syntax with major tag lower that 5`, async () => {
+        const version = '3.0.1xx';
+        const dotnetVersionResolver = new installer.DotnetVersionResolver(
+          version
+        );
+        await expect(
+          async () => await dotnetVersionResolver.createDotNetVersion()
+        ).rejects.toThrow(
+          `'dotnet-version' was supplied in invalid format: ${version}! The A.B.Cxx syntax is available since the .NET 5.0 release.`
+        );
+      });
+    });
+  });
 });
-
-function normalizeFileContents(contents: string): string {
-  return contents
-    .trim()
-    .replace(new RegExp('\r\n', 'g'), '\n')
-    .replace(new RegExp('\r', 'g'), '\n');
-}
-
-async function getDotnet(
-  version: string,
-  quality: string = ''
-): Promise<string> {
-  const dotnetInstaller = new installer.DotnetCoreInstaller(
-    version,
-    quality as QualityOptions
-  );
-  const installedVersion = await dotnetInstaller.installDotnet();
-  installer.DotnetCoreInstaller.addToPath();
-  return installedVersion;
-}

__tests__/sample-csproj/Program.cs

@@ -1,15 +0,0 @@
-using Microsoft.VisualStudio.TestTools.UnitTesting;
-using System;
-
-namespace sample_csproj
-{
-    [TestClass]
-    public class Program
-    {
-        [TestMethod]
-        public void TestMethod1()
-        {
-            Console.WriteLine("Hello, World!");
-        }
-    }
-}

__tests__/sample-csproj/sample.csproj

@@ -1,18 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFrameworks>netcoreapp3.1;netcoreapp3.0;netcoreapp2.2</TargetFrameworks>
-    <RootNamespace>sample_csproj</RootNamespace>
-
-    <IsPackable>false</IsPackable>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <!-- These packages will be downloaded over the network for testing proxy settings -->
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.5.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="2.1.0" />
-    <PackageReference Include="MSTest.TestFramework" Version="2.1.0" />
-    <PackageReference Include="coverlet.collector" Version="1.2.0" />
-  </ItemGroup>
-
-</Project>

__tests__/setup-dotnet.test.ts

@@ -1,98 +1,230 @@
-import * as io from '@actions/io';
 import * as core from '@actions/core';
 import fs from 'fs';
-import os from 'os';
-import path from 'path';
+import semver from 'semver';
+import * as auth from '../src/authutil';
 
 import * as setup from '../src/setup-dotnet';
-import {IS_WINDOWS} from '../src/utils';
-import {IS_LINUX} from '../src/utils';
-
-let toolDir: string;
-
-if (IS_WINDOWS) {
-  toolDir = path.join(process.env['PROGRAMFILES'] + '', 'dotnet');
-} else if (IS_LINUX) {
-  toolDir = '/usr/share/dotnet';
-} else {
-  toolDir = path.join(process.env['HOME'] + '', '.dotnet');
-}
-
-const tempDir = path.join(__dirname, 'runner', 'temp2');
+import {DotnetCoreInstaller} from '../src/installer';
+import * as cacheUtils from '../src/cache-utils';
+import * as cacheRestore from '../src/cache-restore';
 
 describe('setup-dotnet tests', () => {
-  let getInputSpy = jest.spyOn(core, 'getInput');
-  let getMultilineInputSpy = jest.spyOn(core, 'getMultilineInput');
-  let setOutputSpy = jest.spyOn(core, 'setOutput');
+  const inputs = {} as any;
 
-  let inputs = {} as any;
+  const getInputSpy = jest.spyOn(core, 'getInput');
+  const getMultilineInputSpy = jest.spyOn(core, 'getMultilineInput');
+  const getBooleanInputSpy = jest.spyOn(core, 'getBooleanInput');
+  const setFailedSpy = jest.spyOn(core, 'setFailed');
+  const warningSpy = jest.spyOn(core, 'warning');
+  const debugSpy = jest.spyOn(core, 'debug');
+  const infoSpy = jest.spyOn(core, 'info');
+  const setOutputSpy = jest.spyOn(core, 'setOutput');
 
-  beforeAll(async () => {
-    process.env.RUNNER_TOOL_CACHE = toolDir;
-    process.env.DOTNET_INSTALL_DIR = toolDir;
-    process.env.RUNNER_TEMP = tempDir;
-    try {
-      await io.rmRF(`${toolDir}/*`);
-      await io.rmRF(`${tempDir}/*`);
-    } catch (err) {
-      console.log(err.message);
-      console.log('Failed to remove test directories');
-    }
-  }, 30000);
+  const existsSyncSpy = jest.spyOn(fs, 'existsSync');
 
-  afterEach(async () => {
-    try {
-      await io.rmRF(path.join(process.cwd(), 'global.json'));
-      await io.rmRF(`${toolDir}/*`);
-      await io.rmRF(`${tempDir}/*`);
-    } catch (err) {
-      console.log(err.message);
-      console.log('Failed to remove test directories');
-    }
-  }, 30000);
+  const maxSatisfyingSpy = jest.spyOn(semver, 'maxSatisfying');
 
-  it('Acquires version of dotnet from global.json if no matching version is installed', async () => {
-    const globalJsonPath = path.join(process.cwd(), 'global.json');
-    const jsonContents = `{${os.EOL}"sdk": {${os.EOL}"version": "3.1.201"${os.EOL}}${os.EOL}}`;
-    if (!fs.existsSync(globalJsonPath)) {
-      fs.writeFileSync(globalJsonPath, jsonContents);
-    }
-    await setup.run();
+  const installDotnetSpy = jest.spyOn(
+    DotnetCoreInstaller.prototype,
+    'installDotnet'
+  );
+  const addToPathSpy = jest.spyOn(DotnetCoreInstaller, 'addToPath');
+  const isCacheFeatureAvailableSpy = jest.spyOn(
+    cacheUtils,
+    'isCacheFeatureAvailable'
+  );
+  const restoreCacheSpy = jest.spyOn(cacheRestore, 'restoreCache');
+  const configAuthenticationSpy = jest.spyOn(auth, 'configAuthentication');
 
-    expect(fs.existsSync(path.join(toolDir, 'sdk', '3.1.201'))).toBe(true);
-    if (IS_WINDOWS) {
-      expect(fs.existsSync(path.join(toolDir, 'dotnet.exe'))).toBe(true);
-    } else {
-      expect(fs.existsSync(path.join(toolDir, 'dotnet'))).toBe(true);
-    }
-  }, 400000);
+  describe('run() tests', () => {
+    beforeEach(() => {
+      getMultilineInputSpy.mockImplementation(input => inputs[input as string]);
+      getInputSpy.mockImplementation(input => inputs[input as string]);
+      getBooleanInputSpy.mockImplementation(input => inputs[input as string]);
+    });
 
-  it("Sets output with the latest installed by action version if global.json file isn't specified", async () => {
-    inputs['dotnet-version'] = ['3.1.201', '6.0.401'];
+    afterEach(() => {
+      jest.clearAllMocks();
+      jest.resetAllMocks();
+    });
 
-    getMultilineInputSpy.mockImplementation(input => inputs[input]);
+    it('should fail the action if global-json-file input is present, but the file does not exist in the file system', async () => {
+      inputs['global-json-file'] = 'fictitious.json';
+      inputs['dotnet-version'] = [];
 
-    await setup.run();
+      const expectedErrorMessage = `The specified global.json file '${inputs['global-json-file']}' does not exist`;
 
-    expect(setOutputSpy).toBeCalledWith('dotnet-version', '6.0.401');
-  }, 400000);
+      await setup.run();
+      expect(setFailedSpy).toHaveBeenCalledWith(expectedErrorMessage);
+    });
 
-  it("Sets output with the version specified in global.json, if it's present", async () => {
-    const globalJsonPath = path.join(process.cwd(), 'global.json');
-    const jsonContents = `{${os.EOL}"sdk": {${os.EOL}"version": "3.0.103"${os.EOL}}${os.EOL}}`;
-    if (!fs.existsSync(globalJsonPath)) {
-      fs.writeFileSync(globalJsonPath, jsonContents);
-    }
+    test(`if 'dotnet-version' and 'global-json-file' inputs aren't present, should log into debug output, try to find global.json in the repo root, fail and log message into info output`, async () => {
+      inputs['global-json-file'] = '';
+      inputs['dotnet-version'] = [];
 
-    inputs['dotnet-version'] = ['3.1.201', '6.0.401'];
-    inputs['global-json-file'] = './global.json';
+      maxSatisfyingSpy.mockImplementation(() => null);
+      setOutputSpy.mockImplementation(() => {});
 
-    getMultilineInputSpy.mockImplementation(input => inputs[input]);
+      const expectedDebugMessage =
+        'No version found, trying to find version from global.json';
+      const expectedInfoMessage = `The global.json wasn't found in the root directory. No .NET version will be installed.`;
 
-    getInputSpy.mockImplementation(input => inputs[input]);
+      await setup.run();
 
-    await setup.run();
+      expect(debugSpy).toHaveBeenCalledWith(expectedDebugMessage);
+      expect(existsSyncSpy).toHaveBeenCalled();
+      expect(infoSpy).toHaveBeenCalledWith(expectedInfoMessage);
+    });
 
-    expect(setOutputSpy).toBeCalledWith('dotnet-version', '3.0.103');
-  }, 400000);
+    it('should fail the action if quality is supplied but its value is not supported', async () => {
+      inputs['global-json-file'] = '';
+      inputs['dotnet-version'] = ['6.0'];
+      inputs['dotnet-quality'] = 'fictitiousQuality';
+
+      const expectedErrorMessage = `Value '${inputs['dotnet-quality']}' is not supported for the 'dotnet-quality' option. Supported values are: daily, signed, validated, preview, ga.`;
+
+      await setup.run();
+      expect(setFailedSpy).toHaveBeenCalledWith(expectedErrorMessage);
+    });
+
+    it('should call installDotnet() multiple times if dotnet-version multiline input is provided', async () => {
+      inputs['global-json-file'] = '';
+      inputs['dotnet-version'] = ['6.0', '7.0'];
+      inputs['dotnet-quality'] = '';
+
+      installDotnetSpy.mockImplementation(() => Promise.resolve(''));
+
+      await setup.run();
+      expect(installDotnetSpy).toHaveBeenCalledTimes(2);
+    });
+
+    it('should call addToPath() after installation complete', async () => {
+      inputs['global-json-file'] = '';
+      inputs['dotnet-version'] = ['6.0', '7.0'];
+      inputs['dotnet-quality'] = '';
+
+      installDotnetSpy.mockImplementation(() => Promise.resolve(''));
+      addToPathSpy.mockImplementation(() => {});
+
+      await setup.run();
+      expect(addToPathSpy).toHaveBeenCalledTimes(1);
+    });
+
+    it('should call auth.configAuthentication() if source-url input is provided', async () => {
+      inputs['global-json-file'] = '';
+      inputs['dotnet-version'] = [];
+      inputs['dotnet-quality'] = '';
+      inputs['source-url'] = 'fictitious.source.url';
+
+      configAuthenticationSpy.mockImplementation(() => {});
+
+      await setup.run();
+      expect(configAuthenticationSpy).toHaveBeenCalledWith(
+        inputs['source-url'],
+        undefined
+      );
+    });
+
+    it('should call auth.configAuthentication() with proper parameters if source-url and config-file inputs are provided', async () => {
+      inputs['global-json-file'] = '';
+      inputs['dotnet-version'] = [];
+      inputs['dotnet-quality'] = '';
+      inputs['source-url'] = 'fictitious.source.url';
+      inputs['config-file'] = 'fictitious.path';
+
+      configAuthenticationSpy.mockImplementation(() => {});
+      setOutputSpy.mockImplementation(() => {});
+
+      await setup.run();
+      expect(configAuthenticationSpy).toHaveBeenCalledWith(
+        inputs['source-url'],
+        inputs['config-file']
+      );
+    });
+
+    it('should call setOutput() after installation complete successfully', async () => {
+      inputs['dotnet-version'] = ['6.0.300'];
+
+      installDotnetSpy.mockImplementation(() =>
+        Promise.resolve(`${inputs['dotnet-version']}`)
+      );
+      addToPathSpy.mockImplementation(() => {});
+
+      await setup.run();
+      expect(setOutputSpy).toHaveBeenCalledTimes(1);
+    });
+
+    it(`shouldn't call setOutput() if parsing dotnet-installer logs failed`, async () => {
+      inputs['dotnet-version'] = ['6.0.300'];
+      const warningMessage = `Failed to output the installed version of .NET. The 'dotnet-version' output will not be set.`;
+
+      installDotnetSpy.mockImplementation(() => Promise.resolve(null));
+      addToPathSpy.mockImplementation(() => {});
+
+      await setup.run();
+      expect(warningSpy).toHaveBeenCalledWith(warningMessage);
+      expect(setOutputSpy).not.toHaveBeenCalled();
+    });
+
+    it(`shouldn't call setOutput() if actions didn't install .NET`, async () => {
+      inputs['dotnet-version'] = [];
+      const warningMessage = `The 'dotnet-version' output will not be set.`;
+
+      addToPathSpy.mockImplementation(() => {});
+
+      await setup.run();
+
+      expect(infoSpy).toHaveBeenCalledWith(warningMessage);
+      expect(setOutputSpy).not.toHaveBeenCalled();
+    });
+
+    it(`should get 'cache-dependency-path' and call restoreCache() if input cache is set to true and cache feature is available`, async () => {
+      inputs['dotnet-version'] = ['6.0.300'];
+      inputs['dotnet-quality'] = '';
+      inputs['cache'] = true;
+      inputs['cache-dependency-path'] = 'fictitious.package.lock.json';
+
+      installDotnetSpy.mockImplementation(() => Promise.resolve(''));
+      addToPathSpy.mockImplementation(() => {});
+
+      isCacheFeatureAvailableSpy.mockImplementation(() => true);
+      restoreCacheSpy.mockImplementation(() => Promise.resolve());
+
+      await setup.run();
+      expect(isCacheFeatureAvailableSpy).toHaveBeenCalledTimes(1);
+      expect(restoreCacheSpy).toHaveBeenCalledWith(
+        inputs['cache-dependency-path']
+      );
+    });
+
+    it(`shouldn't call restoreCache() if input cache isn't set to true`, async () => {
+      inputs['dotnet-version'] = ['6.0.300'];
+      inputs['dotnet-quality'] = '';
+      inputs['cache'] = false;
+
+      installDotnetSpy.mockImplementation(() => Promise.resolve(''));
+      addToPathSpy.mockImplementation(() => {});
+
+      isCacheFeatureAvailableSpy.mockImplementation(() => true);
+      restoreCacheSpy.mockImplementation(() => Promise.resolve());
+
+      await setup.run();
+      expect(restoreCacheSpy).not.toHaveBeenCalled();
+    });
+
+    it(`shouldn't call restoreCache() if cache feature isn't available`, async () => {
+      inputs['dotnet-version'] = ['6.0.300'];
+      inputs['dotnet-quality'] = '';
+      inputs['cache'] = true;
+
+      installDotnetSpy.mockImplementation(() => Promise.resolve(''));
+      addToPathSpy.mockImplementation(() => {});
+
+      isCacheFeatureAvailableSpy.mockImplementation(() => false);
+      restoreCacheSpy.mockImplementation(() => Promise.resolve());
+
+      await setup.run();
+      expect(restoreCacheSpy).not.toHaveBeenCalled();
+    });
+  });
 });

__tests__/verify-dotnet.ps1

@@ -1,73 +1,117 @@
-if (!$args[0])
-{
-  throw "Must supply dotnet version argument"
+<#
+  .DESCRIPTION
+  Verifies that installed on the machine .NET SDK versions match the input patterns.
+  Optionally checks that the nuget.config file is generated correctly.
+
+  .PARAMETER Patterns
+  Specifies the regular expression patterns that should be matched with the installed
+  on the machine .NET SDK versions. The number of patterns should be equal to the number
+  of installed .NET versions. 
+
+  .PARAMETER CheckNugetConfig
+  Switches the check for the existence of the nuget.config file.
+
+  .EXAMPLE
+  PS> .\verify-dotnet.ps1 -Paterns "^3.1.200$", "^6.0" -CheckNugetConfig
+#>
+
+param(
+  [ValidateNotNullOrEmpty()]
+  [Parameter(Mandatory=$true)]
+  [string[]]$Patterns,
+  [switch]$CheckNugetConfig
+)
+
+$PatternsList = [System.Collections.ArrayList]($Patterns)
+
+if ($CheckNugetConfig.IsPresent -and !(Test-Path "../nuget.config")) {
+  throw "The nuget.config file is not generated correctly."
 }
 
+Write-Host "These patterns were supplied to the script: $($PatternsList -join ', ')."
 $dotnet = Get-Command dotnet | Select-Object -First 1 | ForEach-Object { $_.Path }
-Write-Host "Found '$dotnet'"
+Write-Host "Found: '$dotnet'"
 
-if($args.count -eq 1)
+# SDKs are listed on multiple lines with the path afterwards in square brackets
+$Versions = & $dotnet --list-sdks | ForEach-Object { $_.SubString(0, $_.IndexOf('[')).Trim() }
+Write-Host "Found installed versions: $($Versions -join ', ')."
+$InstalledVersionCount = $Versions.Count
+
+foreach($version in $Versions)
 {
-  $version = & $dotnet --version | Out-String | ForEach-Object { $_.Trim() }
-  Write-Host "Version $version"
-  if (-not ($version.StartsWith($args[0].ToString())))
+  foreach($pattern in $PatternsList) 
   {
-    Write-Host "PATH='$env:PATH'"
-    throw "Unexpected version"
-  }
-}
-
-if ($args[1])
-{
-  # SDKs are listed on multiple lines with the path afterwards in square brackets
-  $versions = & $dotnet --list-sdks | ForEach-Object { $_.SubString(0, $_.IndexOf('[')).Trim() }
-  Write-Host "Installed versions: $versions"
-  $InstalledVersionCount = 0
-  foreach($arg in $args){
-    foreach ($version in $versions)
-    {
-      if ($version.StartsWith($arg.ToString())) 
-      {
-        $InstalledVersionCount++
-      }
+    if ($version -match $pattern)
+    { 
+      $PatternsList.Remove($pattern)
+      $InstalledVersionCount--
+      break
     }
-   }
-  if ( $InstalledVersionCount -ne $args.Count)
-  {
-    Write-Host "PATH='$env:PATH'"
-    throw "Unexpected version"
   }
 }
 
-Write-Host "Building sample csproj"
-& $dotnet build __tests__/sample-csproj/ --no-cache
-if ($LASTEXITCODE -ne 0)
+if ( $InstalledVersionCount -ne 0)
 {
-  throw "Unexpected exit code $LASTEXITCODE"
+  throw "An unexpected version of Dotnet is found on the machine, please check the correctness of the -Patterns input."
 }
 
-Write-Host "Testing compiled app"
-$sample_output = "$(dotnet test __tests__/sample-csproj/ --no-build)"
-Write-Host "Sample output: $sample_output"
-# For Side-by-Side installs we want to run the tests twice, for a single install the tests will run once
-if ($args[1])
+$workingDir = Get-Location
+$testProjectDir = "./__tests__/e2e-test-csproj"
+Write-Host "Changing directory to the $testProjectDir"
+Set-Location $testProjectDir
+
+$targetFrameworkVersionMap = @{
+  "1.0" = "netcoreapp1.0";
+  "1.1" = "netcoreapp1.1";
+  "2.0" = "netcoreapp2.0";
+  "2.1" = "netcoreapp2.1";
+  "2.2" = "netcoreapp2.2";
+  "3.0" = "netcoreapp3.0";
+  "3.1" = "netcoreapp3.1";
+  "5.0" = "net5.0";
+  "6.0" = "net6.0";
+  "7.0" = "net7.0";
+  "8.0" = "net8.0";
+ }
+
+foreach ($version in $Versions)
 {
-  if ($sample_output -notlike "*Test Run Successful.*Test Run Successful.*")
+  # Creating temporary global.json file inside e2e-test-csproj dir and setting exact version of .NET inside allows to override default behavior of .NET and run build and tests on that exact version. 
+  Write-Host "Creating temporary global.json file for $version .NET version."
+  & $dotnet new globaljson --sdk-version $version --force | Out-Null
+  if (!(Test-Path "./global.json"))
   {
-    throw "Unexpected output"
+    throw "An error occured while creating the global.json file. Exit code: $LASTEXITCODE"
   }
-}
-if ($args[2])
-{
-  if ($sample_output -notlike "*Test Run Successful.*Test Run Successful.*Test Run Successful.*")
+  Write-Host "The global.json file for the version $version is created. Currently used .NET version is: $(& $dotnet --version)."
+
+  # Environment variable TEST_TARGET_FRAMEWORK is used inside the test.csproj file to target required framework version
+  $version -match "^(?<key>\d+\.\d+)" | Out-Null
+  if (!($targetFrameworkVersionMap.ContainsKey($Matches.key)))
   {
-    throw "Unexpected output"
+    throw "The map with the framework targets doesn't contain a target name for the version $version."
   }
-}
-else
-{
-  if ($sample_output -notlike "*Test Run Successful.*")
+  Write-Host "Setting the TEST_TARGET_FRAMEWORK environment variable to $($targetFrameworkVersionMap[$Matches.key])"
+  [Environment]::SetEnvironmentVariable('TEST_TARGET_FRAMEWORK', $($targetFrameworkVersionMap[$Matches.key]))
+
+  Write-Host "Building test C# project with $version .NET version."
+  & $dotnet build --no-cache
+  if ($LASTEXITCODE -ne 0)
   {
-    throw "Unexpected output"
+    throw "Building process is not successful, exit code: $LASTEXITCODE"
   }
+
+  Write-Host "Testing compiled C# project with $version .NET version."
+  & $dotnet test --no-build
+  if ($LASTEXITCODE -ne 0)
+  {
+    throw "Testing process is not successful, exit code: $LASTEXITCODE"
+  }
+
+  Write-Host "Tests are completed successfully!"
+
+  Write-Host "Removing temporary global.json file."
+  Remove-Item ./global.json
 }
+
+Set-Location $workingDir

__tests__/verify-dotnet.sh

@@ -1,44 +0,0 @@
-if [ -z "$1" ]; then
-  echo "Must supply dotnet version argument"
-  exit 1
-fi
-
-if [ ! -f "../nuget.config" ]; then
-  echo "nuget file not generated correctly"
-  exit 1
-fi
-
-dotnet_version="$(dotnet --version)"
-echo "Found dotnet version '$dotnet_version'"
-if [ -z "$(echo $dotnet_version | grep $1)" ]; then
-  echo "Unexpected version"
-  exit 1
-fi
-
-if [ -n "$2" ]; then
-  dotnet_version="$(dotnet --list-sdks)"
-  echo "Found dotnet version '$dotnet_version'"
-  if [ -z "$(echo $dotnet_version | grep $2)" ]; then
-    echo "Unexpected version"
-    exit 1
-  fi
-fi
-
-echo "Building sample csproj"
-dotnet build __tests__/sample-csproj/ --no-cache || exit 1
-
-echo "Testing compiled app"
-sample_output=$(dotnet test __tests__/sample-csproj/ --no-build)
-echo "Sample output: $sample_output"
-# For Side-by-Side installs we want to run the tests twice, for a single install the tests will run once
-if [ -n "$2" ]; then
-  if [ -z "$(echo $sample_output | grep "Test Run Successful.*Test Run Successful.")" ]; then
-    echo "Unexpected output"
-    exit 1
-  fi
-else
-  if [ -z "$(echo $sample_output | grep "Test Run Successful.")" ]; then
-    echo "Unexpected output"
-    exit 1
-  fi
-fi

action.yml

@@ -6,7 +6,7 @@ branding:
   color: green
 inputs:
   dotnet-version:
-    description: 'Optional SDK version(s) to use. If not provided, will install global.json version when available. Examples: 2.2.104, 3.1, 3.1.x, 3.x'
+    description: 'Optional SDK version(s) to use. If not provided, will install global.json version when available. Examples: 2.2.104, 3.1, 3.1.x, 3.x, 6.0.2xx'
   dotnet-quality:
     description: 'Optional quality of the build. The possible values are: daily, signed, validated, preview, ga.'
   global-json-file:
@@ -17,9 +17,20 @@ inputs:
     description: 'Optional OWNER for using packages from GitHub Package Registry organizations/users other than the current repository''s owner. Only used if a GPR URL is also provided in source-url'
   config-file:
     description: 'Optional NuGet.config location, if your NuGet.config isn''t located in the root of the repo.'
+  cache:
+    description: 'Optional input to enable caching of the NuGet global-packages folder'
+    required: false
+    default: false
+  cache-dependency-path:
+    description: 'Used to specify the path to a dependency file: packages.lock.json. Supports wildcards or a list of file names for caching multiple dependencies.'
+    required: false
 outputs:
+  cache-hit:
+    description: 'A boolean value to indicate if a cache was hit.'
   dotnet-version:
     description: 'Contains the installed by action .NET SDK version for reuse.'
 runs:
   using: 'node16'
-  main: 'dist/index.js'
+  main: 'dist/setup/index.js'
+  post: 'dist/cache-save/index.js'
+  post-if: success()

docs/contributors.md

@@ -61,12 +61,13 @@ Pull requests are the easiest way to contribute changes to git repos at GitHub.
 
 - To implement new features or fix bugs, you need to make changes to the `.ts` files, which are located in the `src` folder
 - To comply with the code style, **you need to run the `format` script**
+- To lint the code, **you need to run the `lint:fix` script**
 - To transpile source code to `javascript` we use [NCC](https://github.com/vercel/ncc). **It is very important to run the `build` script after making changes**, otherwise your changes will not get into the final `javascript` build
 
 **Learn more about how to implement tests:**
 
 Adding or changing tests is an integral part of making a change to the code. 
-Unit tests are in the `__tests__` folder, and end-to-end tests are in the `workflows` folder, particularly in the [workflow.yml](https://github.com/actions/setup-dotnet/blob/main/.github/workflows/workflow.yml).
+Unit tests are in the `__tests__` folder, and end-to-end tests are in the `workflows` folder, particularly in the [e2e-tests.yml](https://github.com/actions/setup-dotnet/blob/main/.github/workflows/e2e-tests.yml).
 
 - The contributor can add various types of tests (like unit tests or end-to-end tests), which, in his opinion, will be necessary and sufficient for testing new or changed functionality
 - Tests should cover a successful execution, as well as some edge cases and possible errors

externals/install-dotnet.sh

@@ -298,11 +298,20 @@ get_machine_architecture() {
     if command -v uname > /dev/null; then
         CPUName=$(uname -m)
         case $CPUName in
+        armv1*|armv2*|armv3*|armv4*|armv5*|armv6*)
+            echo "armv6-or-below"
+            return 0
+            ;;
         armv*l)
             echo "arm"
             return 0
             ;;
         aarch64|arm64)
+            if [ "$(getconf LONG_BIT)" -lt 64 ]; then
+                # This is 32-bit OS running on 64-bit CPU (for example Raspberry Pi OS)
+                echo "arm"
+                return 0
+            fi
             echo "arm64"
             return 0
             ;;
@@ -310,6 +319,22 @@ get_machine_architecture() {
             echo "s390x"
             return 0
             ;;
+        ppc64le)
+            echo "ppc64le"
+            return 0
+            ;;
+        loongarch64)
+            echo "loongarch64"
+            return 0
+            ;;
+        riscv64)
+            echo "riscv64"
+            return 0
+            ;;
+        powerpc|ppc)
+            echo "ppc"
+            return 0
+            ;;
         esac
     fi
 
@@ -326,7 +351,13 @@ get_normalized_architecture_from_architecture() {
     local architecture="$(to_lowercase "$1")"
 
     if [[ $architecture == \<auto\> ]]; then
-        echo "$(get_machine_architecture)"
+        machine_architecture="$(get_machine_architecture)"
+        if [[ "$machine_architecture" == "armv6-or-below" ]]; then
+            say_err "Architecture \`$machine_architecture\` not supported. If you think this is a bug, report it at https://github.com/dotnet/install-scripts/issues"
+            return 1
+        fi
+
+        echo $machine_architecture
         return 0
     fi
 
@@ -347,6 +378,14 @@ get_normalized_architecture_from_architecture() {
             echo "s390x"
             return 0
             ;;
+        ppc64le)
+            echo "ppc64le"
+            return 0
+            ;;
+        loongarch64)
+            echo "loongarch64"
+            return 0
+            ;;
     esac
 
     say_err "Architecture \`$architecture\` not supported. If you think this is a bug, report it at https://github.com/dotnet/install-scripts/issues"
@@ -384,11 +423,17 @@ get_normalized_architecture_for_specific_sdk_version() {
 # args:
 # version or channel - $1
 is_arm64_supported() {
-    #any channel or version that starts with the specified versions
-    case "$1" in
-        ( "1"* | "2"* | "3"*  | "4"* | "5"*) 
-            echo false
-            return 0
+    # Extract the major version by splitting on the dot
+    major_version="${1%%.*}"
+
+    # Check if the major version is a valid number and less than 6
+    case "$major_version" in
+        [0-9]*)  
+            if [ "$major_version" -lt 6 ]; then
+                echo false
+                return 0
+            fi
+            ;;
     esac
 
     echo true
@@ -407,8 +452,13 @@ get_normalized_os() {
                 echo "$osname"
                 return 0
                 ;;
+            macos)
+                osname='osx'
+                echo "$osname"
+                return 0
+                ;;
             *)
-                say_err "'$user_defined_os' is not a supported value for --os option, supported values are: osx, linux, linux-musl, freebsd, rhel.6. If you think this is a bug, report it at https://github.com/dotnet/install-scripts/issues."
+                say_err "'$user_defined_os' is not a supported value for --os option, supported values are: osx, macos, linux, linux-musl, freebsd, rhel.6. If you think this is a bug, report it at https://github.com/dotnet/install-scripts/issues."
                 return 1
                 ;;
         esac
@@ -538,6 +588,40 @@ is_dotnet_package_installed() {
     fi
 }
 
+# args:
+# downloaded file - $1
+# remote_file_size - $2
+validate_remote_local_file_sizes() 
+{
+    eval $invocation
+
+    local downloaded_file="$1"
+    local remote_file_size="$2"
+    local file_size=''
+
+    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+        file_size="$(stat -c '%s' "$downloaded_file")"
+    elif [[ "$OSTYPE" == "darwin"* ]]; then
+        # hardcode in order to avoid conflicts with GNU stat
+        file_size="$(/usr/bin/stat -f '%z' "$downloaded_file")"
+    fi  
+    
+    if [ -n "$file_size" ]; then
+        say "Downloaded file size is $file_size bytes."
+
+        if [ -n "$remote_file_size" ] && [ -n "$file_size" ]; then
+            if [ "$remote_file_size" -ne "$file_size" ]; then
+                say "The remote and local file sizes are not equal. The remote file size is $remote_file_size bytes and the local size is $file_size bytes. The local package may be corrupted."
+            else
+                say "The remote and local file sizes are equal."
+            fi
+        fi
+        
+    else
+        say "Either downloaded or local package size can not be measured. One of them may be corrupted."      
+    fi 
+}
+
 # args:
 # azure_feed - $1
 # channel - $2
@@ -872,6 +956,37 @@ get_absolute_path() {
     return 0
 }
 
+# args:
+# override - $1 (boolean, true or false)
+get_cp_options() {
+    eval $invocation
+
+    local override="$1"
+    local override_switch=""
+
+    if [ "$override" = false ]; then
+        override_switch="-n"
+
+        # create temporary files to check if 'cp -u' is supported
+        tmp_dir="$(mktemp -d)"
+        tmp_file="$tmp_dir/testfile"
+        tmp_file2="$tmp_dir/testfile2"
+
+        touch "$tmp_file"
+
+        # use -u instead of -n if it's available
+        if cp -u "$tmp_file" "$tmp_file2" 2>/dev/null; then
+            override_switch="-u"
+        fi
+
+        # clean up
+        rm -f "$tmp_file" "$tmp_file2"
+        rm -rf "$tmp_dir"
+    fi
+
+    echo "$override_switch"
+}
+
 # args:
 # input_files - stdin
 # root_path - $1
@@ -883,15 +998,7 @@ copy_files_or_dirs_from_list() {
     local root_path="$(remove_trailing_slash "$1")"
     local out_path="$(remove_trailing_slash "$2")"
     local override="$3"
-    local osname="$(get_current_os_name)"
-    local override_switch=$(
-        if [ "$override" = false ]; then
-            if [ "$osname" = "linux-musl" ]; then
-                printf -- "-u";
-            else
-                printf -- "-n";
-            fi
-        fi)
+    local override_switch="$(get_cp_options "$override")"
 
     cat | uniq | while read -r file_path; do
         local path="$(remove_beginning_slash "${file_path#$root_path}")"
@@ -906,14 +1013,39 @@ copy_files_or_dirs_from_list() {
     done
 }
 
+# args:
+# zip_uri - $1
+get_remote_file_size() {
+    local zip_uri="$1"
+
+    if machine_has "curl"; then
+        file_size=$(curl -sI  "$zip_uri" | grep -i content-length | awk '{ num = $2 + 0; print num }')
+    elif machine_has "wget"; then
+        file_size=$(wget --spider --server-response -O /dev/null "$zip_uri" 2>&1 | grep -i 'Content-Length:' | awk '{ num = $2 + 0; print num }')
+    else
+        say "Neither curl nor wget is available on this system."
+        return
+    fi
+
+    if [ -n "$file_size" ]; then
+        say "Remote file $zip_uri size is $file_size bytes."
+        echo "$file_size"
+    else
+        say_verbose "Content-Length header was not extracted for $zip_uri."
+        echo ""
+    fi
+}
+
 # args:
 # zip_path - $1
 # out_path - $2
+# remote_file_size - $3
 extract_dotnet_package() {
     eval $invocation
 
     local zip_path="$1"
     local out_path="$2"
+    local remote_file_size="$3"
 
     local temp_out_path="$(mktemp -d "$temporary_file_template")"
 
@@ -923,9 +1055,13 @@ extract_dotnet_package() {
     local folders_with_version_regex='^.*/[0-9]+\.[0-9]+[^/]+/'
     find "$temp_out_path" -type f | grep -Eo "$folders_with_version_regex" | sort | copy_files_or_dirs_from_list "$temp_out_path" "$out_path" false
     find "$temp_out_path" -type f | grep -Ev "$folders_with_version_regex" | copy_files_or_dirs_from_list "$temp_out_path" "$out_path" "$override_non_versioned_files"
-
+    
+    validate_remote_local_file_sizes "$zip_path" "$remote_file_size"
+    
     rm -rf "$temp_out_path"
-    rm -f "$zip_path" && say_verbose "Temporary zip file $zip_path was removed"
+    if [ -z ${keep_zip+x} ]; then
+        rm -f "$zip_path" && say_verbose "Temporary archive file $zip_path was removed"
+    fi
 
     if [ "$failed" = true ]; then
         say_err "Extraction failed"
@@ -1136,6 +1272,61 @@ downloadwget() {
     return 0
 }
 
+extract_stem() {
+    local url="$1"
+    # extract the protocol
+    proto="$(echo $1 | grep :// | sed -e's,^\(.*://\).*,\1,g')"
+    # remove the protocol
+    url="${1/$proto/}"
+    # extract the path (if any) - since we know all of our feeds have a first path segment, we can skip the first one. otherwise we'd use -f2- to get the full path
+    full_path="$(echo $url | grep / | cut -d/ -f2-)"
+    path="$(echo $full_path | cut -d/ -f2-)"
+    echo $path
+}
+
+check_url_exists() {
+    eval $invocation
+    local url="$1"
+
+    local code=""
+    if machine_has "curl"
+    then
+        code=$(curl --head -o /dev/null -w "%{http_code}" -s --fail "$url");
+    elif machine_has "wget"
+    then
+        # get the http response, grab the status code
+        server_response=$(wget -qO- --method=HEAD --server-response "$url" 2>&1)
+        code=$(echo "$server_response" | grep "HTTP/" | awk '{print $2}')
+    fi
+    if [ $code = "200" ]; then
+        return 0
+    else
+        return 1
+    fi
+}
+
+sanitize_redirect_url() {
+    eval $invocation
+
+    local url_stem
+    url_stem=$(extract_stem "$1")
+    say_verbose "Checking configured feeds for the asset at ${yellow:-}$url_stem${normal:-}"
+
+    for feed in "${feeds[@]}"
+    do
+        local trial_url="$feed/$url_stem"
+        say_verbose "Checking ${yellow:-}$trial_url${normal:-}"
+        if check_url_exists "$trial_url"; then
+            say_verbose "Found a match at ${yellow:-}$trial_url${normal:-}"
+            echo "$trial_url"
+            return 0
+        else
+            say_verbose "No match at ${yellow:-}$trial_url${normal:-}"
+        fi
+    done
+    return 1
+}
+
 get_download_link_from_aka_ms() {
     eval $invocation
 
@@ -1172,6 +1363,12 @@ get_download_link_from_aka_ms() {
     http_codes=$( echo "$response" | awk '$1 ~ /^HTTP/ {print $2}' )
     # They all need to be 301, otherwise some links are broken (except for the last, which is not a redirect but 200 or 404).
     broken_redirects=$( echo "$http_codes" | sed '$d' | grep -v '301' )
+    # The response may end without final code 2xx/4xx/5xx somehow, e.g. network restrictions on www.bing.com causes redirecting to bing.com fails with connection refused.
+    # In this case it should not exclude the last.
+    last_http_code=$(  echo "$http_codes" | tail -n 1 )
+    if ! [[ $last_http_code =~ ^(2|4|5)[0-9][0-9]$ ]]; then
+        broken_redirects=$( echo "$http_codes" | grep -v '301' )
+    fi
 
     # All HTTP codes are 301 (Moved Permanently), the redirect link exists.
     if [[ -z "$broken_redirects" ]]; then
@@ -1182,6 +1379,11 @@ get_download_link_from_aka_ms() {
             return 1
         fi
 
+        sanitized_redirect_url=$(sanitize_redirect_url "$aka_ms_download_link")
+        if [[ -n "$sanitized_redirect_url" ]]; then
+            aka_ms_download_link="$sanitized_redirect_url"
+        fi
+
         say_verbose "The redirect location retrieved: '$aka_ms_download_link'."
         return 0
     else
@@ -1193,23 +1395,16 @@ get_download_link_from_aka_ms() {
 get_feeds_to_use()
 {
     feeds=(
-    "https://dotnetcli.azureedge.net/dotnet"
-    "https://dotnetbuilds.azureedge.net/public"
+    "https://builds.dotnet.microsoft.com/dotnet"
+    "https://ci.dot.net/public"
     )
 
     if [[ -n "$azure_feed" ]]; then
         feeds=("$azure_feed")
     fi
 
-    if [[ "$no_cdn" == "true" ]]; then
-        feeds=(
-        "https://dotnetcli.blob.core.windows.net/dotnet"
-        "https://dotnetbuilds.blob.core.windows.net/public"
-        )
-
-        if [[ -n "$uncached_feed" ]]; then
-            feeds=("$uncached_feed")
-        fi
+    if [[ -n "$uncached_feed" ]]; then
+        feeds=("$uncached_feed")
     fi
 }
 
@@ -1341,7 +1536,7 @@ generate_regular_links() {
         link_types+=("legacy")
     else
         legacy_download_link=""
-        say_verbose "Cound not construct a legacy_download_link; omitting..."
+        say_verbose "Could not construct a legacy_download_link; omitting..."
     fi
 
     #  Check if the SDK version is already installed.
@@ -1419,10 +1614,11 @@ install_dotnet() {
     eval $invocation
     local download_failed=false
     local download_completed=false
+    local remote_file_size=0
 
     mkdir -p "$install_root"
-    zip_path="$(mktemp "$temporary_file_template")"
-    say_verbose "Zip path: $zip_path"
+    zip_path="${zip_path:-$(mktemp "$temporary_file_template")}"
+    say_verbose "Archive path: $zip_path"
 
     for link_index in "${!download_links[@]}"
     do
@@ -1443,10 +1639,10 @@ install_dotnet() {
                 say "The resource at $link_type link '$download_link' is not available."
                 ;;
             *)
-                say "Failed to download $link_type link '$download_link': $download_error_msg"
+                say "Failed to download $link_type link '$download_link': $http_code $download_error_msg"
                 ;;
             esac
-            rm -f "$zip_path" 2>&1 && say_verbose "Temporary zip file $zip_path was removed"
+            rm -f "$zip_path" 2>&1 && say_verbose "Temporary archive file $zip_path was removed"
         else
             download_completed=true
             break
@@ -1459,8 +1655,10 @@ install_dotnet() {
         return 1
     fi
 
-    say "Extracting zip from $download_link"
-    extract_dotnet_package "$zip_path" "$install_root" || return 1
+    remote_file_size="$(get_remote_file_size "$download_link")"
+
+    say "Extracting archive from $download_link"
+    extract_dotnet_package "$zip_path" "$install_root" "$remote_file_size" || return 1
 
     #  Check if the SDK version is installed; if not, fail the installation.
     # if the version contains "RTM" or "servicing"; check if a 'release-type' SDK version is installed.
@@ -1502,7 +1700,6 @@ install_dir="<auto>"
 architecture="<auto>"
 dry_run=false
 no_path=false
-no_cdn=false
 azure_feed=""
 uncached_feed=""
 feed_credential=""
@@ -1575,10 +1772,6 @@ do
             verbose=true
             non_dynamic_parameters+=" $name"
             ;;
-        --no-cdn|-[Nn]o[Cc]dn)
-            no_cdn=true
-            non_dynamic_parameters+=" $name"
-            ;;
         --azure-feed|-[Aa]zure[Ff]eed)
             shift
             azure_feed="$1"
@@ -1610,13 +1803,29 @@ do
             override_non_versioned_files=false
             non_dynamic_parameters+=" $name"
             ;;
+        --keep-zip|-[Kk]eep[Zz]ip)
+            keep_zip=true
+            non_dynamic_parameters+=" $name"
+            ;;
+        --zip-path|-[Zz]ip[Pp]ath)
+            shift
+            zip_path="$1"
+            ;;
         -?|--?|-h|--help|-[Hh]elp)
-            script_name="$(basename "$0")"
+            script_name="dotnet-install.sh"
             echo ".NET Tools Installer"
-            echo "Usage: $script_name [-c|--channel <CHANNEL>] [-v|--version <VERSION>] [-p|--prefix <DESTINATION>]"
+            echo "Usage:"
+            echo "       # Install a .NET SDK of a given Quality from a given Channel"
+            echo "       $script_name [-c|--channel <CHANNEL>] [-q|--quality <QUALITY>]"
+            echo "       # Install a .NET SDK of a specific public version"
+            echo "       $script_name [-v|--version <VERSION>]"
             echo "       $script_name -h|-?|--help"
             echo ""
             echo "$script_name is a simple command line interface for obtaining dotnet cli."
+            echo "    Note that the intended use of this script is for Continuous Integration (CI) scenarios, where:"
+            echo "    - The SDK needs to be installed without user interaction and without admin rights."
+            echo "    - The SDK installation doesn't need to persist across multiple CI runs."
+            echo "    To set up a development environment or to run apps, use installers rather than this script. Visit https://dotnet.microsoft.com/download to get the installer."
             echo ""
             echo "Options:"
             echo "  -c,--channel <CHANNEL>         Download from the channel specified, Defaults to \`$channel\`."
@@ -1651,7 +1860,7 @@ do
             echo "      -InstallDir"
             echo "  --architecture <ARCHITECTURE>      Architecture of dotnet binaries to be installed, Defaults to \`$architecture\`."
             echo "      --arch,-Architecture,-Arch"
-            echo "          Possible values: x64, arm, arm64 and s390x"
+            echo "          Possible values: x64, arm, arm64, s390x, ppc64le and loongarch64"
             echo "  --os <system>                    Specifies operating system to be used when selecting the installer."
             echo "          Overrides the OS determination approach used by the script. Supported values: osx, linux, linux-musl, freebsd, rhel.6."
             echo "          In case any other value is provided, the platform will be determined by the script based on machine configuration."
@@ -1667,15 +1876,14 @@ do
             echo "  --verbose,-Verbose                 Display diagnostics information."
             echo "  --azure-feed,-AzureFeed            For internal use only."
             echo "                                     Allows using a different storage to download SDK archives from."
-            echo "                                     This parameter is only used if --no-cdn is false."
             echo "  --uncached-feed,-UncachedFeed      For internal use only."
             echo "                                     Allows using a different storage to download SDK archives from."
-            echo "                                     This parameter is only used if --no-cdn is true."
             echo "  --skip-non-versioned-files         Skips non-versioned files if they already exist, such as the dotnet executable."
             echo "      -SkipNonVersionedFiles"
-            echo "  --no-cdn,-NoCdn                    Disable downloading from the Azure CDN, and use the uncached feed directly."
             echo "  --jsonfile <JSONFILE>              Determines the SDK version from a user specified global.json file."
             echo "                                     Note: global.json must have a value for 'SDK:Version'"
+            echo "  --keep-zip,-KeepZip                If set, downloaded file is kept."
+            echo "  --zip-path, -ZipPath               If set, downloaded file is stored at the specified path."
             echo "  -?,--?,-h,--help,-Help             Shows this help message"
             echo ""
             echo "Install Location:"
@@ -1694,10 +1902,10 @@ do
     shift
 done
 
-say "Note that the intended use of this script is for Continuous Integration (CI) scenarios, where:"
-say "- The SDK needs to be installed without user interaction and without admin rights."
-say "- The SDK installation doesn't need to persist across multiple CI runs."
-say "To set up a development environment or to run apps, use installers rather than this script. Visit https://dotnet.microsoft.com/download to get the installer.\n"
+say_verbose "Note that the intended use of this script is for Continuous Integration (CI) scenarios, where:"
+say_verbose "- The SDK needs to be installed without user interaction and without admin rights."
+say_verbose "- The SDK installation doesn't need to persist across multiple CI runs."
+say_verbose "To set up a development environment or to run apps, use installers rather than this script. Visit https://dotnet.microsoft.com/download to get the installer.\n"
 
 if [ "$internal" = true ] && [ -z "$(echo $feed_credential)" ]; then
     message="Provide credentials via --feed-credential parameter."
@@ -1731,4 +1939,4 @@ fi
 
 say "Note that the script does not resolve dependencies during installation."
 say "To check the list of dependencies, go to https://learn.microsoft.com/dotnet/core/install, select your operating system and check the \"Dependencies\" section."
-say "Installation finished successfully."
+say "Installation finished successfully."

package.json

@@ -3,12 +3,13 @@
   "version": "3.0.2",
   "private": true,
   "description": "setup dotnet action",
-  "main": "lib/setup-dotnet.js",
+  "main": "dist/setup/index.js",
   "scripts": {
-    "build": "tsc && ncc build",
-    "format": "prettier --write **/*.ts",
-    "format-check": "prettier --check **/*.ts",
-    "lint": "echo \"Fake command that does nothing. It is used in reusable workflows\"",
+    "build": "ncc build -o dist/setup src/setup-dotnet.ts && ncc build -o dist/cache-save src/cache-save.ts",
+    "format": "prettier --no-error-on-unmatched-pattern --config ./.prettierrc.js --write \"**/*.{ts,yml,yaml}\"",
+    "format-check": "prettier --no-error-on-unmatched-pattern --config ./.prettierrc.js --check \"**/*.{ts,yml,yaml}\"",
+    "lint": "eslint --config ./.eslintrc.js \"**/*.ts\"",
+    "lint:fix": "eslint --config ./.eslintrc.js \"**/*.ts\" --fix",
     "prepare": "husky install",
     "test": "jest --coverage --config ./jest.config.js",
     "update-installers": "nwget https://dot.net/v1/dotnet-install.ps1 -O externals/install-dotnet.ps1 && nwget https://dot.net/v1/dotnet-install.sh -O externals/install-dotnet.sh"
@@ -25,23 +26,32 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
+    "@actions/cache": "^3.0.0",
     "@actions/core": "^1.10.0",
-    "@actions/exec": "^1.0.4",
+    "@actions/exec": "^1.1.1",
     "@actions/github": "^1.1.0",
+    "@actions/glob": "^0.3.0",
     "@actions/http-client": "^2.0.1",
     "@actions/io": "^1.0.2",
     "fast-xml-parser": "^4.0.10",
     "semver": "^6.3.0"
   },
   "devDependencies": {
-    "@types/jest": "^27.0.2",
+    "@types/jest": "^27.5.2",
     "@types/node": "^16.11.25",
     "@types/semver": "^6.2.2",
-    "@vercel/ncc": "^0.33.4",
+    "@typescript-eslint/eslint-plugin": "^5.54.0",
+    "@typescript-eslint/parser": "^5.54.0",
+    "@vercel/ncc": "^0.34.0",
+    "eslint": "^8.35.0",
+    "eslint-config-prettier": "^8.6.0",
+    "eslint-plugin-jest": "^27.2.1",
+    "eslint-plugin-node": "^11.1.0",
     "husky": "^8.0.1",
-    "jest": "^27.2.5",
-    "jest-circus": "^27.2.5",
-    "prettier": "^2.7.1",
+    "jest": "^27.5.1",
+    "jest-circus": "^27.5.1",
+    "jest-each": "^27.5.1",
+    "prettier": "^2.8.4",
     "ts-jest": "^27.0.5",
     "typescript": "^4.8.4",
     "wget-improved": "^3.2.1"

src/authutil.ts

@@ -1,196 +1,196 @@
-import * as fs from 'fs';
-import * as path from 'path';
-import * as core from '@actions/core';
-import * as github from '@actions/github';
-import {XMLParser, XMLBuilder} from 'fast-xml-parser';
-
-export function configAuthentication(
-  feedUrl: string,
-  existingFileLocation: string = '',
-  processRoot: string = process.cwd()
-) {
-  const existingNuGetConfig: string = path.resolve(
-    processRoot,
-    existingFileLocation === ''
-      ? getExistingNugetConfig(processRoot)
-      : existingFileLocation
-  );
-
-  const tempNuGetConfig: string = path.resolve(
-    processRoot,
-    '../',
-    'nuget.config'
-  );
-
-  writeFeedToFile(feedUrl, existingNuGetConfig, tempNuGetConfig);
-}
-
-function isValidKey(key: string): boolean {
-  return /^[\w\-\.]+$/i.test(key);
-}
-
-function getExistingNugetConfig(processRoot: string) {
-  const defaultConfigName = 'nuget.config';
-  const configFileNames = fs
-    .readdirSync(processRoot)
-    .filter(filename => filename.toLowerCase() === defaultConfigName);
-  if (configFileNames.length) {
-    return configFileNames[0];
-  }
-  return defaultConfigName;
-}
-
-function writeFeedToFile(
-  feedUrl: string,
-  existingFileLocation: string,
-  tempFileLocation: string
-) {
-  core.info(
-    `dotnet-auth: Finding any source references in ${existingFileLocation}, writing a new temporary configuration file with credentials to ${tempFileLocation}`
-  );
-  let sourceKeys: string[] = [];
-  let owner: string = core.getInput('owner');
-  let sourceUrl: string = feedUrl;
-  if (!owner) {
-    owner = github.context.repo.owner;
-  }
-
-  if (!process.env.NUGET_AUTH_TOKEN) {
-    throw new Error(
-      'The NUGET_AUTH_TOKEN environment variable was not provided. In this step, add the following: \r\nenv:\r\n  NUGET_AUTH_TOKEN: ${{secrets.GITHUB_TOKEN}}'
-    );
-  }
-
-  if (fs.existsSync(existingFileLocation)) {
-    // get key from existing NuGet.config so NuGet/dotnet can match credentials
-    const curContents: string = fs.readFileSync(existingFileLocation, 'utf8');
-
-    const parserOptions = {
-      ignoreAttributes: false
-    };
-    const parser = new XMLParser(parserOptions);
-    const json = parser.parse(curContents);
-
-    if (typeof json.configuration === 'undefined') {
-      throw new Error(`The provided NuGet.config seems invalid.`);
-    }
-    if (json.configuration?.packageSources?.add) {
-      const packageSources = json.configuration.packageSources.add;
-
-      if (Array.isArray(packageSources)) {
-        packageSources.forEach(source => {
-          const value = source['@_value'];
-          core.debug(`source '${value}'`);
-          if (value.toLowerCase().includes(feedUrl.toLowerCase())) {
-            const key = source['@_key'];
-            sourceKeys.push(key);
-            core.debug(`Found a URL with key ${key}`);
-          }
-        });
-      } else {
-        if (
-          packageSources['@_value']
-            .toLowerCase()
-            .includes(feedUrl.toLowerCase())
-        ) {
-          const key = packageSources['@_key'];
-          sourceKeys.push(key);
-          core.debug(`Found a URL with key ${key}`);
-        }
-      }
-    }
-  }
-
-  const xmlSource: any[] = [
-    {
-      '?xml': [
-        {
-          '#text': ''
-        }
-      ],
-      ':@': {
-        '@_version': '1.0'
-      }
-    },
-    {
-      configuration: [
-        {
-          config: [
-            {
-              add: [],
-              ':@': {
-                '@_key': 'defaultPushSource',
-                '@_value': sourceUrl
-              }
-            }
-          ]
-        }
-      ]
-    }
-  ];
-
-  if (!sourceKeys.length) {
-    let keystring = 'Source';
-
-    xmlSource[1].configuration.push({
-      packageSources: [
-        {
-          add: [],
-          ':@': {
-            '@_key': keystring,
-            '@_value': sourceUrl
-          }
-        }
-      ]
-    });
-
-    sourceKeys.push(keystring);
-  }
-
-  const packageSourceCredentials: any[] = [];
-  sourceKeys.forEach(key => {
-    if (!isValidKey(key)) {
-      throw new Error(
-        "Source name can contain letters, numbers, and '-', '_', '.' symbols only. Please, fix source name in NuGet.config and try again."
-      );
-    }
-
-    packageSourceCredentials.push({
-      [key]: [
-        {
-          add: [],
-          ':@': {
-            '@_key': 'Username',
-            '@_value': owner
-          }
-        },
-        {
-          add: [],
-          ':@': {
-            '@_key': 'ClearTextPassword',
-            '@_value': process.env.NUGET_AUTH_TOKEN
-          }
-        }
-      ]
-    });
-  });
-
-  xmlSource[1].configuration.push({
-    packageSourceCredentials
-  });
-
-  const xmlBuilderOptions = {
-    format: true,
-    ignoreAttributes: false,
-    preserveOrder: true,
-    allowBooleanAttributes: true,
-    suppressBooleanAttributes: true,
-    suppressEmptyNode: true
-  };
-
-  const builder = new XMLBuilder(xmlBuilderOptions);
-
-  const output = builder.build(xmlSource).trim();
-
-  fs.writeFileSync(tempFileLocation, output);
-}
+import * as fs from 'fs';
+import * as path from 'path';
+import * as core from '@actions/core';
+import * as github from '@actions/github';
+import {XMLParser, XMLBuilder} from 'fast-xml-parser';
+
+export function configAuthentication(
+  feedUrl: string,
+  existingFileLocation = '',
+  processRoot: string = process.cwd()
+) {
+  const existingNuGetConfig: string = path.resolve(
+    processRoot,
+    existingFileLocation === ''
+      ? getExistingNugetConfig(processRoot)
+      : existingFileLocation
+  );
+
+  const tempNuGetConfig: string = path.resolve(
+    processRoot,
+    '../',
+    'nuget.config'
+  );
+
+  writeFeedToFile(feedUrl, existingNuGetConfig, tempNuGetConfig);
+}
+
+function isValidKey(key: string): boolean {
+  return /^[\w\-.]+$/i.test(key);
+}
+
+function getExistingNugetConfig(processRoot: string) {
+  const defaultConfigName = 'nuget.config';
+  const configFileNames = fs
+    .readdirSync(processRoot)
+    .filter(filename => filename.toLowerCase() === defaultConfigName);
+  if (configFileNames.length) {
+    return configFileNames[0];
+  }
+  return defaultConfigName;
+}
+
+function writeFeedToFile(
+  feedUrl: string,
+  existingFileLocation: string,
+  tempFileLocation: string
+) {
+  core.info(
+    `dotnet-auth: Finding any source references in ${existingFileLocation}, writing a new temporary configuration file with credentials to ${tempFileLocation}`
+  );
+  const sourceKeys: string[] = [];
+  let owner: string = core.getInput('owner');
+  const sourceUrl: string = feedUrl;
+  if (!owner) {
+    owner = github.context.repo.owner;
+  }
+
+  if (!process.env.NUGET_AUTH_TOKEN) {
+    throw new Error(
+      'The NUGET_AUTH_TOKEN environment variable was not provided. In this step, add the following: \r\nenv:\r\n  NUGET_AUTH_TOKEN: ${{secrets.GITHUB_TOKEN}}'
+    );
+  }
+
+  if (fs.existsSync(existingFileLocation)) {
+    // get key from existing NuGet.config so NuGet/dotnet can match credentials
+    const curContents: string = fs.readFileSync(existingFileLocation, 'utf8');
+
+    const parserOptions = {
+      ignoreAttributes: false
+    };
+    const parser = new XMLParser(parserOptions);
+    const json = parser.parse(curContents);
+
+    if (typeof json.configuration === 'undefined') {
+      throw new Error(`The provided NuGet.config seems invalid.`);
+    }
+    if (json.configuration?.packageSources?.add) {
+      const packageSources = json.configuration.packageSources.add;
+
+      if (Array.isArray(packageSources)) {
+        packageSources.forEach(source => {
+          const value = source['@_value'];
+          core.debug(`source '${value}'`);
+          if (value.toLowerCase().includes(feedUrl.toLowerCase())) {
+            const key = source['@_key'];
+            sourceKeys.push(key);
+            core.debug(`Found a URL with key ${key}`);
+          }
+        });
+      } else {
+        if (
+          packageSources['@_value']
+            .toLowerCase()
+            .includes(feedUrl.toLowerCase())
+        ) {
+          const key = packageSources['@_key'];
+          sourceKeys.push(key);
+          core.debug(`Found a URL with key ${key}`);
+        }
+      }
+    }
+  }
+
+  const xmlSource: any[] = [
+    {
+      '?xml': [
+        {
+          '#text': ''
+        }
+      ],
+      ':@': {
+        '@_version': '1.0'
+      }
+    },
+    {
+      configuration: [
+        {
+          config: [
+            {
+              add: [],
+              ':@': {
+                '@_key': 'defaultPushSource',
+                '@_value': sourceUrl
+              }
+            }
+          ]
+        }
+      ]
+    }
+  ];
+
+  if (!sourceKeys.length) {
+    const keystring = 'Source';
+
+    xmlSource[1].configuration.push({
+      packageSources: [
+        {
+          add: [],
+          ':@': {
+            '@_key': keystring,
+            '@_value': sourceUrl
+          }
+        }
+      ]
+    });
+
+    sourceKeys.push(keystring);
+  }
+
+  const packageSourceCredentials: any[] = [];
+  sourceKeys.forEach(key => {
+    if (!isValidKey(key)) {
+      throw new Error(
+        "Source name can contain letters, numbers, and '-', '_', '.' symbols only. Please, fix source name in NuGet.config and try again."
+      );
+    }
+
+    packageSourceCredentials.push({
+      [key]: [
+        {
+          add: [],
+          ':@': {
+            '@_key': 'Username',
+            '@_value': owner
+          }
+        },
+        {
+          add: [],
+          ':@': {
+            '@_key': 'ClearTextPassword',
+            '@_value': process.env.NUGET_AUTH_TOKEN
+          }
+        }
+      ]
+    });
+  });
+
+  xmlSource[1].configuration.push({
+    packageSourceCredentials
+  });
+
+  const xmlBuilderOptions = {
+    format: true,
+    ignoreAttributes: false,
+    preserveOrder: true,
+    allowBooleanAttributes: true,
+    suppressBooleanAttributes: true,
+    suppressEmptyNode: true
+  };
+
+  const builder = new XMLBuilder(xmlBuilderOptions);
+
+  const output = builder.build(xmlSource).trim();
+
+  fs.writeFileSync(tempFileLocation, output);
+}

src/cache-restore.ts

@@ -0,0 +1,50 @@
+import {readdir} from 'node:fs/promises';
+import {join} from 'node:path';
+import * as cache from '@actions/cache';
+import * as core from '@actions/core';
+import * as glob from '@actions/glob';
+
+import {getNuGetFolderPath} from './cache-utils';
+import {lockFilePatterns, State, Outputs} from './constants';
+
+export const restoreCache = async (cacheDependencyPath?: string) => {
+  const lockFilePath = cacheDependencyPath || (await findLockFile());
+  const fileHash = await glob.hashFiles(lockFilePath);
+  if (!fileHash) {
+    throw new Error(
+      'Some specified paths were not resolved, unable to cache dependencies.'
+    );
+  }
+
+  const platform = process.env.RUNNER_OS;
+  const primaryKey = `dotnet-cache-${platform}-${fileHash}`;
+  core.debug(`primary key is ${primaryKey}`);
+
+  core.saveState(State.CachePrimaryKey, primaryKey);
+
+  const {'global-packages': cachePath} = await getNuGetFolderPath();
+  const cacheKey = await cache.restoreCache([cachePath], primaryKey);
+  core.setOutput(Outputs.CacheHit, Boolean(cacheKey));
+
+  if (!cacheKey) {
+    core.info('Dotnet cache is not found');
+    return;
+  }
+
+  core.saveState(State.CacheMatchedKey, cacheKey);
+  core.info(`Cache restored from key: ${cacheKey}`);
+};
+
+const findLockFile = async () => {
+  const workspace = process.env.GITHUB_WORKSPACE!;
+  const rootContent = await readdir(workspace);
+
+  const lockFile = lockFilePatterns.find(item => rootContent.includes(item));
+  if (!lockFile) {
+    throw new Error(
+      `Dependencies lock file is not found in ${workspace}. Supported file patterns: ${lockFilePatterns.toString()}`
+    );
+  }
+
+  return join(workspace, lockFile);
+};

src/cache-save.ts

@@ -0,0 +1,57 @@
+import * as core from '@actions/core';
+import * as cache from '@actions/cache';
+import fs from 'node:fs';
+import {getNuGetFolderPath} from './cache-utils';
+import {State} from './constants';
+
+// Catch and log any unhandled exceptions.  These exceptions can leak out of the uploadChunk method in
+// @actions/toolkit when a failed upload closes the file descriptor causing any in-process reads to
+// throw an uncaught exception.  Instead of failing this action, just warn.
+process.on('uncaughtException', e => {
+  const warningPrefix = '[warning]';
+  core.info(`${warningPrefix}${e.message}`);
+});
+
+export async function run() {
+  try {
+    if (core.getBooleanInput('cache')) {
+      await cachePackages();
+    }
+  } catch (error) {
+    core.setFailed(error.message);
+  }
+}
+
+const cachePackages = async () => {
+  const state = core.getState(State.CacheMatchedKey);
+  const primaryKey = core.getState(State.CachePrimaryKey);
+
+  if (!primaryKey) {
+    core.info('Primary key was not generated, not saving cache.');
+    return;
+  }
+
+  const {'global-packages': cachePath} = await getNuGetFolderPath();
+
+  if (!fs.existsSync(cachePath)) {
+    throw new Error(
+      `Cache folder path is retrieved for .NET CLI but doesn't exist on disk: ${cachePath}`
+    );
+  }
+
+  if (primaryKey === state) {
+    core.info(
+      `Cache hit occurred on the primary key ${primaryKey}, not saving cache.`
+    );
+    return;
+  }
+
+  const cacheId = await cache.saveCache([cachePath], primaryKey);
+  if (cacheId == -1) {
+    return;
+  }
+
+  core.info(`Cache saved with the key: ${primaryKey}`);
+};
+
+run();

src/cache-utils.ts

@@ -0,0 +1,98 @@
+import * as cache from '@actions/cache';
+import * as core from '@actions/core';
+import * as exec from '@actions/exec';
+
+import {cliCommand} from './constants';
+
+type NuGetFolderName =
+  | 'http-cache'
+  | 'global-packages'
+  | 'temp'
+  | 'plugins-cache';
+
+/**
+ * Get NuGet global packages, cache, and temp folders from .NET CLI.
+ * @returns (Folder Name)-(Path) mappings
+ * @see https://docs.microsoft.com/nuget/consume-packages/managing-the-global-packages-and-cache-folders
+ * @example
+ * Windows
+ * ```json
+ * {
+ *   "http-cache": "C:\\Users\\user1\\AppData\\Local\\NuGet\\v3-cache",
+ *   "global-packages": "C:\\Users\\user1\\.nuget\\packages\\",
+ *   "temp": "C:\\Users\\user1\\AppData\\Local\\Temp\\NuGetScratch",
+ *   "plugins-cache": "C:\\Users\\user1\\AppData\\Local\\NuGet\\plugins-cache"
+ * }
+ * ```
+ *
+ * Mac/Linux
+ * ```json
+ * {
+ *   "http-cache": "/home/user1/.local/share/NuGet/v3-cache",
+ *   "global-packages": "/home/user1/.nuget/packages/",
+ *   "temp": "/tmp/NuGetScratch",
+ *   "plugins-cache": "/home/user1/.local/share/NuGet/plugins-cache"
+ * }
+ * ```
+ */
+export const getNuGetFolderPath = async () => {
+  const {stdout, stderr, exitCode} = await exec.getExecOutput(
+    cliCommand,
+    undefined,
+    {ignoreReturnCode: true, silent: true}
+  );
+
+  if (exitCode) {
+    throw new Error(
+      !stderr.trim()
+        ? `The '${cliCommand}' command failed with exit code: ${exitCode}`
+        : stderr
+    );
+  }
+
+  const result: Record<NuGetFolderName, string> = {
+    'http-cache': '',
+    'global-packages': '',
+    temp: '',
+    'plugins-cache': ''
+  };
+
+  const regex = /(?:^|\s)(?<key>[a-z-]+): (?<path>.+[/\\].+)$/gm;
+
+  let match: RegExpExecArray | null;
+  while ((match = regex.exec(stdout)) !== null) {
+    const key = match.groups!.key;
+    if ((key as NuGetFolderName) in result) {
+      result[key] = match.groups!.path;
+    }
+  }
+
+  return result;
+};
+
+export function isCacheFeatureAvailable(): boolean {
+  if (cache.isFeatureAvailable()) {
+    return true;
+  }
+
+  if (isGhes()) {
+    core.warning(
+      'Cache action is only supported on GHES version >= 3.5. If you are on version >=3.5 Please check with GHES admin if Actions cache service is enabled or not.'
+    );
+    return false;
+  }
+  core.warning(
+    'The runner was not able to contact the cache service. Caching will be skipped'
+  );
+
+  return false;
+}
+
+/**
+ * Returns this action runs on GitHub Enterprise Server or not.
+ * (port from https://github.com/actions/toolkit/blob/457303960f03375db6f033e214b9f90d79c3fe5c/packages/cache/src/internal/cacheUtils.ts#L134)
+ */
+function isGhes(): boolean {
+  const url = process.env['GITHUB_SERVER_URL'] || 'https://github.com';
+  return new URL(url).hostname.toUpperCase() !== 'GITHUB.COM';
+}

src/constants.ts

@@ -0,0 +1,19 @@
+/** NuGet lock file patterns */
+export const lockFilePatterns = ['packages.lock.json'];
+
+/**
+ * .NET CLI command to list local NuGet resources.
+ * @see https://docs.microsoft.com/dotnet/core/tools/dotnet-nuget-locals
+ */
+export const cliCommand =
+  'dotnet nuget locals all --list --force-english-output';
+
+export enum State {
+  CachePrimaryKey = 'CACHE_KEY',
+  CacheMatchedKey = 'CACHE_RESULT'
+}
+
+export enum Outputs {
+  CacheHit = 'cache-hit',
+  DotnetVersion = 'dotnet-version'
+}

src/installer.ts

@@ -1,263 +1,280 @@
-// Load tempDirectory before it gets wiped by tool-cache
-import * as core from '@actions/core';
-import * as exec from '@actions/exec';
-import * as io from '@actions/io';
-import * as hc from '@actions/http-client';
-import {chmodSync} from 'fs';
-import {readdir} from 'fs/promises';
-import path from 'path';
-import os from 'os';
-import semver from 'semver';
-import {IS_LINUX, IS_WINDOWS} from './utils';
-import {QualityOptions} from './setup-dotnet';
-
-export interface DotnetVersion {
-  type: string;
-  value: string;
-  qualityFlag: boolean;
-}
-
-export class DotnetVersionResolver {
-  private inputVersion: string;
-  private resolvedArgument: DotnetVersion;
-
-  constructor(version: string) {
-    this.inputVersion = version.trim();
-    this.resolvedArgument = {type: '', value: '', qualityFlag: false};
-  }
-
-  private async resolveVersionInput(): Promise<void> {
-    if (!semver.validRange(this.inputVersion)) {
-      throw new Error(
-        `'dotnet-version' was supplied in invalid format: ${this.inputVersion}! Supported syntax: A.B.C, A.B, A.B.x, A, A.x`
-      );
-    }
-    if (semver.valid(this.inputVersion)) {
-      this.resolvedArgument.type = 'version';
-      this.resolvedArgument.value = this.inputVersion;
-    } else {
-      const [major, minor] = this.inputVersion.split('.');
-
-      if (this.isNumericTag(major)) {
-        this.resolvedArgument.type = 'channel';
-        if (this.isNumericTag(minor)) {
-          this.resolvedArgument.value = `${major}.${minor}`;
-        } else {
-          const httpClient = new hc.HttpClient('actions/setup-dotnet', [], {
-            allowRetries: true,
-            maxRetries: 3
-          });
-          this.resolvedArgument.value = await this.getLatestVersion(
-            httpClient,
-            [major, minor]
-          );
-        }
-      }
-      this.resolvedArgument.qualityFlag = +major >= 6 ? true : false;
-    }
-  }
-
-  private isNumericTag(versionTag): boolean {
-    return /^\d+$/.test(versionTag);
-  }
-
-  public async createDotNetVersion(): Promise<{
-    type: string;
-    value: string;
-    qualityFlag: boolean;
-  }> {
-    await this.resolveVersionInput();
-    if (!this.resolvedArgument.type) {
-      return this.resolvedArgument;
-    }
-    if (IS_WINDOWS) {
-      this.resolvedArgument.type =
-        this.resolvedArgument.type === 'channel' ? '-Channel' : '-Version';
-    } else {
-      this.resolvedArgument.type =
-        this.resolvedArgument.type === 'channel' ? '--channel' : '--version';
-    }
-    return this.resolvedArgument;
-  }
-
-  private async getLatestVersion(
-    httpClient: hc.HttpClient,
-    versionParts: string[]
-  ): Promise<string> {
-    const response = await httpClient.getJson<any>(
-      DotnetVersionResolver.DotNetCoreIndexUrl
-    );
-    const result = response.result || {};
-    let releasesInfo: any[] = result['releases-index'];
-
-    let releaseInfo = releasesInfo.find(info => {
-      let sdkParts: string[] = info['channel-version'].split('.');
-      return sdkParts[0] === versionParts[0];
-    });
-
-    if (!releaseInfo) {
-      throw new Error(
-        `Could not find info for version ${versionParts.join('.')} at ${
-          DotnetVersionResolver.DotNetCoreIndexUrl
-        }`
-      );
-    }
-
-    return releaseInfo['channel-version'];
-  }
-
-  static DotNetCoreIndexUrl: string =
-    'https://dotnetcli.azureedge.net/dotnet/release-metadata/releases-index.json';
-}
-
-export class DotnetCoreInstaller {
-  private version: string;
-  private quality: QualityOptions;
-
-  static {
-    const installationDirectoryWindows = path.join(
-      process.env['PROGRAMFILES'] + '',
-      'dotnet'
-    );
-    const installationDirectoryLinux = '/usr/share/dotnet';
-    const installationDirectoryMac = path.join(
-      process.env['HOME'] + '',
-      '.dotnet'
-    );
-    const dotnetInstallDir: string | undefined =
-      process.env['DOTNET_INSTALL_DIR'];
-    if (dotnetInstallDir) {
-      process.env['DOTNET_INSTALL_DIR'] =
-        this.convertInstallPathToAbsolute(dotnetInstallDir);
-    } else {
-      if (IS_WINDOWS) {
-        process.env['DOTNET_INSTALL_DIR'] = installationDirectoryWindows;
-      } else {
-        process.env['DOTNET_INSTALL_DIR'] = IS_LINUX
-          ? installationDirectoryLinux
-          : installationDirectoryMac;
-      }
-    }
-  }
-
-  constructor(version: string, quality: QualityOptions) {
-    this.version = version;
-    this.quality = quality;
-  }
-
-  private static convertInstallPathToAbsolute(installDir: string): string {
-    let transformedPath;
-    if (path.isAbsolute(installDir)) {
-      transformedPath = installDir;
-    } else {
-      transformedPath = installDir.startsWith('~')
-        ? path.join(os.homedir(), installDir.slice(1))
-        : (transformedPath = path.join(process.cwd(), installDir));
-    }
-    return path.normalize(transformedPath);
-  }
-
-  static addToPath() {
-    core.addPath(process.env['DOTNET_INSTALL_DIR']!);
-    core.exportVariable('DOTNET_ROOT', process.env['DOTNET_INSTALL_DIR']);
-  }
-
-  private setQuality(
-    dotnetVersion: DotnetVersion,
-    scriptArguments: string[]
-  ): void {
-    const option = IS_WINDOWS ? '-Quality' : '--quality';
-    if (dotnetVersion.qualityFlag) {
-      scriptArguments.push(option, this.quality);
-    } else {
-      core.warning(
-        `'dotnet-quality' input can be used only with .NET SDK version in A.B, A.B.x, A and A.x formats where the major tag is higher than 5. You specified: ${this.version}. 'dotnet-quality' input is ignored.`
-      );
-    }
-  }
-
-  public async installDotnet(): Promise<string> {
-    const windowsDefaultOptions = [
-      '-NoLogo',
-      '-Sta',
-      '-NoProfile',
-      '-NonInteractive',
-      '-ExecutionPolicy',
-      'Unrestricted',
-      '-Command'
-    ];
-    const scriptName = IS_WINDOWS ? 'install-dotnet.ps1' : 'install-dotnet.sh';
-    const escapedScript = path
-      .join(__dirname, '..', 'externals', scriptName)
-      .replace(/'/g, "''");
-    let scriptArguments: string[];
-    let scriptPath = '';
-
-    const versionResolver = new DotnetVersionResolver(this.version);
-    const dotnetVersion = await versionResolver.createDotNetVersion();
-
-    if (IS_WINDOWS) {
-      scriptArguments = ['&', `'${escapedScript}'`];
-
-      if (dotnetVersion.type) {
-        scriptArguments.push(dotnetVersion.type, dotnetVersion.value);
-      }
-
-      if (this.quality) {
-        this.setQuality(dotnetVersion, scriptArguments);
-      }
-
-      if (process.env['https_proxy'] != null) {
-        scriptArguments.push(`-ProxyAddress ${process.env['https_proxy']}`);
-      }
-      // This is not currently an option
-      if (process.env['no_proxy'] != null) {
-        scriptArguments.push(`-ProxyBypassList ${process.env['no_proxy']}`);
-      }
-
-      scriptPath =
-        (await io.which('pwsh', false)) || (await io.which('powershell', true));
-      scriptArguments = windowsDefaultOptions.concat(scriptArguments);
-    } else {
-      chmodSync(escapedScript, '777');
-      scriptPath = await io.which(escapedScript, true);
-      scriptArguments = [];
-
-      if (dotnetVersion.type) {
-        scriptArguments.push(dotnetVersion.type, dotnetVersion.value);
-      }
-
-      if (this.quality) {
-        this.setQuality(dotnetVersion, scriptArguments);
-      }
-    }
-    // process.env must be explicitly passed in for DOTNET_INSTALL_DIR to be used
-    const getExecOutputOptions = {
-      ignoreReturnCode: true,
-      env: process.env as {string: string}
-    };
-    const {exitCode, stdout} = await exec.getExecOutput(
-      `"${scriptPath}"`,
-      scriptArguments,
-      getExecOutputOptions
-    );
-    if (exitCode) {
-      throw new Error(`Failed to install dotnet ${exitCode}. ${stdout}`);
-    }
-
-    return this.outputDotnetVersion(dotnetVersion.value);
-  }
-
-  private async outputDotnetVersion(version): Promise<string> {
-    const installationPath = process.env['DOTNET_INSTALL_DIR']!;
-    let versionsOnRunner: string[] = await readdir(
-      path.join(installationPath.replace(/'/g, ''), 'sdk')
-    );
-
-    let installedVersion = semver.maxSatisfying(versionsOnRunner, version, {
-      includePrerelease: true
-    })!;
-
-    return installedVersion;
-  }
-}
+// Load tempDirectory before it gets wiped by tool-cache
+import * as core from '@actions/core';
+import * as exec from '@actions/exec';
+import * as io from '@actions/io';
+import * as hc from '@actions/http-client';
+import {chmodSync} from 'fs';
+import path from 'path';
+import os from 'os';
+import semver from 'semver';
+import {IS_LINUX, IS_WINDOWS} from './utils';
+import {QualityOptions} from './setup-dotnet';
+
+export interface DotnetVersion {
+  type: string;
+  value: string;
+  qualityFlag: boolean;
+}
+
+const QUALITY_INPUT_MINIMAL_MAJOR_TAG = 6;
+const LATEST_PATCH_SYNTAX_MINIMAL_MAJOR_TAG = 5;
+export class DotnetVersionResolver {
+  private inputVersion: string;
+  private resolvedArgument: DotnetVersion;
+
+  constructor(version: string) {
+    this.inputVersion = version.trim();
+    this.resolvedArgument = {type: '', value: '', qualityFlag: false};
+  }
+
+  private async resolveVersionInput(): Promise<void> {
+    if (!semver.validRange(this.inputVersion) && !this.isLatestPatchSyntax()) {
+      throw new Error(
+        `The 'dotnet-version' was supplied in invalid format: ${this.inputVersion}! Supported syntax: A.B.C, A.B, A.B.x, A, A.x, A.B.Cxx`
+      );
+    }
+    if (semver.valid(this.inputVersion)) {
+      this.createVersionArgument();
+    } else {
+      await this.createChannelArgument();
+    }
+  }
+
+  private isNumericTag(versionTag): boolean {
+    return /^\d+$/.test(versionTag);
+  }
+
+  private isLatestPatchSyntax() {
+    const majorTag = this.inputVersion.match(
+      /^(?<majorTag>\d+)\.\d+\.\d{1}x{2}$/
+    )?.groups?.majorTag;
+    if (
+      majorTag &&
+      parseInt(majorTag) < LATEST_PATCH_SYNTAX_MINIMAL_MAJOR_TAG
+    ) {
+      throw new Error(
+        `The 'dotnet-version' was supplied in invalid format: ${this.inputVersion}! The A.B.Cxx syntax is available since the .NET 5.0 release.`
+      );
+    }
+    return majorTag ? true : false;
+  }
+
+  private createVersionArgument() {
+    this.resolvedArgument.type = 'version';
+    this.resolvedArgument.value = this.inputVersion;
+  }
+
+  private async createChannelArgument() {
+    this.resolvedArgument.type = 'channel';
+    const [major, minor] = this.inputVersion.split('.');
+    if (this.isLatestPatchSyntax()) {
+      this.resolvedArgument.value = this.inputVersion;
+    } else if (this.isNumericTag(major) && this.isNumericTag(minor)) {
+      this.resolvedArgument.value = `${major}.${minor}`;
+    } else if (this.isNumericTag(major)) {
+      this.resolvedArgument.value = await this.getLatestByMajorTag(major);
+    } else {
+      // If "dotnet-version" is specified as *, x or X resolve latest version of .NET explicitly from LTS channel. The version argument will default to "latest" by install-dotnet script.
+      this.resolvedArgument.value = 'LTS';
+    }
+    this.resolvedArgument.qualityFlag =
+      parseInt(major) >= QUALITY_INPUT_MINIMAL_MAJOR_TAG ? true : false;
+  }
+
+  public async createDotNetVersion(): Promise<DotnetVersion> {
+    await this.resolveVersionInput();
+    if (!this.resolvedArgument.type) {
+      return this.resolvedArgument;
+    }
+    if (IS_WINDOWS) {
+      this.resolvedArgument.type =
+        this.resolvedArgument.type === 'channel' ? '-Channel' : '-Version';
+    } else {
+      this.resolvedArgument.type =
+        this.resolvedArgument.type === 'channel' ? '--channel' : '--version';
+    }
+    return this.resolvedArgument;
+  }
+
+  private async getLatestByMajorTag(majorTag: string): Promise<string> {
+    const httpClient = new hc.HttpClient('actions/setup-dotnet', [], {
+      allowRetries: true,
+      maxRetries: 3
+    });
+
+    const response = await httpClient.getJson<any>(
+      DotnetVersionResolver.DotNetCoreIndexUrl
+    );
+
+    const result = response.result || {};
+    const releasesInfo: any[] = result['releases-index'];
+
+    const releaseInfo = releasesInfo.find(info => {
+      const sdkParts: string[] = info['channel-version'].split('.');
+      return sdkParts[0] === majorTag;
+    });
+
+    if (!releaseInfo) {
+      throw new Error(
+        `Could not find info for version with major tag: "${majorTag}" at ${DotnetVersionResolver.DotNetCoreIndexUrl}`
+      );
+    }
+
+    return releaseInfo['channel-version'];
+  }
+
+  static DotNetCoreIndexUrl =
+    'https://builds.dotnet.microsoft.com/dotnet/release-metadata/releases-index.json';
+}
+
+export class DotnetCoreInstaller {
+  private version: string;
+  private quality: QualityOptions;
+
+  static {
+    const installationDirectoryWindows = path.join(
+      process.env['PROGRAMFILES'] + '',
+      'dotnet'
+    );
+    const installationDirectoryLinux = '/usr/share/dotnet';
+    const installationDirectoryMac = path.join(
+      process.env['HOME'] + '',
+      '.dotnet'
+    );
+    const dotnetInstallDir: string | undefined =
+      process.env['DOTNET_INSTALL_DIR'];
+    if (dotnetInstallDir) {
+      process.env['DOTNET_INSTALL_DIR'] =
+        this.convertInstallPathToAbsolute(dotnetInstallDir);
+    } else {
+      if (IS_WINDOWS) {
+        process.env['DOTNET_INSTALL_DIR'] = installationDirectoryWindows;
+      } else {
+        process.env['DOTNET_INSTALL_DIR'] = IS_LINUX
+          ? installationDirectoryLinux
+          : installationDirectoryMac;
+      }
+    }
+  }
+
+  constructor(version: string, quality: QualityOptions) {
+    this.version = version;
+    this.quality = quality;
+  }
+
+  private static convertInstallPathToAbsolute(installDir: string): string {
+    let transformedPath;
+    if (path.isAbsolute(installDir)) {
+      transformedPath = installDir;
+    } else {
+      transformedPath = installDir.startsWith('~')
+        ? path.join(os.homedir(), installDir.slice(1))
+        : (transformedPath = path.join(process.cwd(), installDir));
+    }
+    return path.normalize(transformedPath);
+  }
+
+  static addToPath() {
+    core.addPath(process.env['DOTNET_INSTALL_DIR']!);
+    core.exportVariable('DOTNET_ROOT', process.env['DOTNET_INSTALL_DIR']);
+  }
+
+  private setQuality(
+    dotnetVersion: DotnetVersion,
+    scriptArguments: string[]
+  ): void {
+    const option = IS_WINDOWS ? '-Quality' : '--quality';
+    if (dotnetVersion.qualityFlag) {
+      scriptArguments.push(option, this.quality);
+    } else {
+      core.warning(
+        `The 'dotnet-quality' input can be used only with .NET SDK version in A.B, A.B.x, A, A.x and A.B.Cxx formats where the major tag is higher than 5. You specified: ${this.version}. 'dotnet-quality' input is ignored.`
+      );
+    }
+  }
+
+  public async installDotnet(): Promise<string | null> {
+    const windowsDefaultOptions = [
+      '-NoLogo',
+      '-Sta',
+      '-NoProfile',
+      '-NonInteractive',
+      '-ExecutionPolicy',
+      'Unrestricted',
+      '-Command'
+    ];
+    const scriptName = IS_WINDOWS ? 'install-dotnet.ps1' : 'install-dotnet.sh';
+    const escapedScript = path
+      .join(__dirname, '..', '..', 'externals', scriptName)
+      .replace(/'/g, "''");
+    let scriptArguments: string[];
+    let scriptPath = '';
+
+    const versionResolver = new DotnetVersionResolver(this.version);
+    const dotnetVersion = await versionResolver.createDotNetVersion();
+
+    if (IS_WINDOWS) {
+      scriptArguments = ['&', `'${escapedScript}'`];
+
+      if (dotnetVersion.type) {
+        scriptArguments.push(dotnetVersion.type, dotnetVersion.value);
+      }
+
+      if (this.quality) {
+        this.setQuality(dotnetVersion, scriptArguments);
+      }
+
+      if (process.env['https_proxy'] != null) {
+        scriptArguments.push(`-ProxyAddress ${process.env['https_proxy']}`);
+      }
+      // This is not currently an option
+      if (process.env['no_proxy'] != null) {
+        scriptArguments.push(`-ProxyBypassList ${process.env['no_proxy']}`);
+      }
+
+      scriptPath =
+        (await io.which('pwsh', false)) || (await io.which('powershell', true));
+      scriptArguments = windowsDefaultOptions.concat(scriptArguments);
+    } else {
+      chmodSync(escapedScript, '777');
+      scriptPath = await io.which(escapedScript, true);
+      scriptArguments = [];
+
+      if (dotnetVersion.type) {
+        scriptArguments.push(dotnetVersion.type, dotnetVersion.value);
+      }
+
+      if (this.quality) {
+        this.setQuality(dotnetVersion, scriptArguments);
+      }
+    }
+    // process.env must be explicitly passed in for DOTNET_INSTALL_DIR to be used
+    const getExecOutputOptions = {
+      ignoreReturnCode: true,
+      env: process.env as {string: string}
+    };
+    const {exitCode, stdout, stderr} = await exec.getExecOutput(
+      `"${scriptPath}"`,
+      scriptArguments,
+      getExecOutputOptions
+    );
+    if (exitCode) {
+      throw new Error(
+        `Failed to install dotnet, exit code: ${exitCode}. ${stderr}`
+      );
+    }
+
+    return this.parseInstalledVersion(stdout);
+  }
+
+  private parseInstalledVersion(stdout: string): string | null {
+    const regex = /(?<version>\d+\.\d+\.\d+[a-z0-9._-]*)/gm;
+    const matchedResult = regex.exec(stdout);
+
+    if (!matchedResult) {
+      core.warning(`Failed to parse installed by the script version of .NET`);
+      return null;
+    }
+    return matchedResult.groups!.version;
+  }
+}

src/setup-dotnet.ts

@@ -4,6 +4,9 @@ import * as fs from 'fs';
 import path from 'path';
 import semver from 'semver';
 import * as auth from './authutil';
+import {isCacheFeatureAvailable} from './cache-utils';
+import {restoreCache} from './cache-restore';
+import {Outputs} from './constants';
 
 const qualityOptions = [
   'daily',
@@ -13,7 +16,7 @@ const qualityOptions = [
   'ga'
 ] as const;
 
-export type QualityOptions = typeof qualityOptions[number];
+export type QualityOptions = (typeof qualityOptions)[number];
 
 export async function run() {
   try {
@@ -27,11 +30,11 @@ export async function run() {
     // Proxy, auth, (etc) are still set up, even if no version is identified
     //
     const versions = core.getMultilineInput('dotnet-version');
-    const installedDotnetVersions: string[] = [];
+    const installedDotnetVersions: (string | null)[] = [];
 
     const globalJsonFileInput = core.getInput('global-json-file');
     if (globalJsonFileInput) {
-      const globalJsonPath = path.join(process.cwd(), globalJsonFileInput);
+      const globalJsonPath = path.resolve(process.cwd(), globalJsonFileInput);
       if (!fs.existsSync(globalJsonPath)) {
         throw new Error(
           `The specified global.json file '${globalJsonFileInput}' does not exist`
@@ -48,7 +51,7 @@ export async function run() {
         versions.push(getVersionFromGlobalJson(globalJsonPath));
       } else {
         core.info(
-          `global.json wasn't found in the root directory. No .NET version will be installed.`
+          `The global.json wasn't found in the root directory. No .NET version will be installed.`
         );
       }
     }
@@ -58,7 +61,7 @@ export async function run() {
 
       if (quality && !qualityOptions.includes(quality)) {
         throw new Error(
-          `${quality} is not a supported value for 'dotnet-quality' option. Supported values are: daily, signed, validated, preview, ga.`
+          `Value '${quality}' is not supported for the 'dotnet-quality' option. Supported values are: daily, signed, validated, preview, ga.`
         );
       }
 
@@ -78,21 +81,14 @@ export async function run() {
       auth.configAuthentication(sourceUrl, configFile);
     }
 
-    const comparisonRange: string = globalJsonFileInput
-      ? versions[versions.length - 1]!
-      : '*';
+    outputInstalledVersion(installedDotnetVersions, globalJsonFileInput);
 
-    const versionToOutput = semver.maxSatisfying(
-      installedDotnetVersions,
-      comparisonRange,
-      {
-        includePrerelease: true
-      }
-    );
+    if (core.getBooleanInput('cache') && isCacheFeatureAvailable()) {
+      const cacheDependencyPath = core.getInput('cache-dependency-path');
+      await restoreCache(cacheDependencyPath);
+    }
 
-    core.setOutput('dotnet-version', versionToOutput);
-
-    const matchersPath = path.join(__dirname, '..', '.github');
+    const matchersPath = path.join(__dirname, '..', '..', '.github');
     core.info(`##[add-matcher]${path.join(matchersPath, 'csc.json')}`);
   } catch (error) {
     core.setFailed(error.message);
@@ -100,7 +96,7 @@ export async function run() {
 }
 
 function getVersionFromGlobalJson(globalJsonPath: string): string {
-  let version: string = '';
+  let version = '';
   const globalJson = JSON.parse(
     // .trim() is necessary to strip BOM https://github.com/nodejs/node/issues/20649
     fs.readFileSync(globalJsonPath, {encoding: 'utf8'}).trim()
@@ -116,4 +112,37 @@ function getVersionFromGlobalJson(globalJsonPath: string): string {
   return version;
 }
 
+function outputInstalledVersion(
+  installedVersions: (string | null)[],
+  globalJsonFileInput: string
+): void {
+  if (!installedVersions.length) {
+    core.info(`The '${Outputs.DotnetVersion}' output will not be set.`);
+    return;
+  }
+
+  if (installedVersions.includes(null)) {
+    core.warning(
+      `Failed to output the installed version of .NET. The '${Outputs.DotnetVersion}' output will not be set.`
+    );
+    return;
+  }
+
+  if (globalJsonFileInput) {
+    const versionToOutput = installedVersions.at(-1); // .NET SDK version parsed from the global.json file is installed last
+    core.setOutput(Outputs.DotnetVersion, versionToOutput);
+    return;
+  }
+
+  const versionToOutput = semver.maxSatisfying(
+    installedVersions as string[],
+    '*',
+    {
+      includePrerelease: true
+    }
+  );
+
+  core.setOutput(Outputs.DotnetVersion, versionToOutput);
+}
+
 run();

tsconfig.json

@@ -49,7 +49,8 @@
     // "typeRoots": [],                       /* List of folders to include type definitions from. */
     // "types": [],                           /* Type declaration files to be included in compilation. */
     // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
-    "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    "esModuleInterop": true,                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    "resolveJsonModule": true,                /* Allows importing modules with a '.json' extension, which is a common practice in node projects. */
     // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
     // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */