Minor improvement to logging in post-action

- Ensure that "Caching Gradle state" group always has 1 message
- Only print cache report when entries were restored or saved

.eslintrc.json

@@ -11,7 +11,7 @@
       "eslint-comments/no-use": "off",
       "import/no-namespace": "off",
       "no-unused-vars": "off",
-      "@typescript-eslint/no-unused-vars": "error",
+      "@typescript-eslint/no-unused-vars": ["error", { "argsIgnorePattern": "^_" }],
       "@typescript-eslint/explicit-member-accessibility": ["error", {"accessibility": "no-public"}],
       "@typescript-eslint/no-require-imports": "error",
       "@typescript-eslint/array-type": "error",

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,70 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ main ]
+  schedule:
+    - cron: '25 23 * * 2'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'javascript' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
+        # Learn more about CodeQL language support at https://git.io/codeql-language-support
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v1
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1

.github/workflows/dev.yml

@@ -1,5 +1,4 @@
-# make sure the build works and doesn't produce spurious changes
-name: dev
+name: Verify generated outputs
 
 on:
   pull_request:

.github/workflows/failure-cases.yml

@@ -1,37 +1,33 @@
- # Run builds under certain failure conditions to allow the output to be manually inspected.
-# These build invocations are informational only, and are expected to fail
-name: failure-cases
+name: Execute failure cases
 
 on:
-  pull_request:
-  push:
   workflow_dispatch:
 
 env:
-  CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
+  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
 
 jobs:
 
   wrapper-missing:
-    continue-on-error: true
     runs-on: ubuntu-latest
     steps:
     - name: Checkout sources
       uses: actions/checkout@v2
     - name: Test wrapper missing
       uses: ./
+      continue-on-error: true
       with:
         build-root-directory: __tests__/samples/no-wrapper
         arguments: help
 
   bad-configuration:
-    continue-on-error: true
     runs-on: ubuntu-latest
     steps:
     - name: Checkout sources
       uses: actions/checkout@v2
     - name: Test bad config value
       uses: ./
+      continue-on-error: true
       with:
         build-root-directory: __tests__/samples/no-wrapper
         arguments: help

.github/workflows/integTest-action-inputs.yml

@@ -0,0 +1,30 @@
+name: Test different action inputs
+
+on:
+  pull_request:
+  push:
+  workflow_dispatch:
+
+env:
+  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
+
+jobs:
+  action-inputs:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Invoke with multi-line arguments
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: |
+            --configuration-cache
+            --build-cache
+            -DsystemProperty=FOO
+            -PgradleProperty=BAR
+            test
+            jar

.github/workflows/integTest-caching-config.yml

@@ -0,0 +1,75 @@
+name: Test caching configuration
+
+on:
+  pull_request:
+  push:
+  workflow_dispatch:
+
+env:
+  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
+  GRADLE_BUILD_ACTION_CACHE_DEBUG_ENABLED: true
+
+jobs:
+  # Run initial Gradle builds to push initial cache entries
+  # These builds should start fresh without cache hits, due to the seed injected into the cache key above.
+  seed-build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Build using Gradle wrapper
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test
+        # Add "wrapper" to main cache entry and remove 'wrapper-zips' bundle
+        # Exclude build-cache from main cache entry
+        gradle-home-cache-includes: |
+            caches
+            notifications
+            wrapper
+        gradle-home-cache-excludes: |
+            caches/build-cache-1
+        gradle-home-cache-artifact-bundles: |
+            [
+              ["generated-gradle-jars", "caches/*/generated-gradle-jars/*.jar"],
+              ["dependencies", "caches/modules-*/files-*/*/*/*/*/"],
+              ["instrumented-jars", "caches/jars-*/*/"],
+              ["kotlin-dsl", "caches/*/kotlin-dsl/*/*/"]
+            ]
+
+  # Test that the gradle-user-home cache will cache dependencies, by running build with --offline
+  verify-build:
+    needs: seed-build
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Execute Gradle build with --offline
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test --offline
+        cache-read-only: true
+        # Need the same configuration when restoring state from cache
+        gradle-home-cache-includes: |
+            caches
+            notifications
+            wrapper
+        gradle-home-cache-excludes: |
+            caches/build-cache-1
+        gradle-home-cache-artifact-bundles: |
+            [
+              ["generated-gradle-jars", "caches/*/generated-gradle-jars/*.jar"],
+              ["dependencies", "caches/modules-*/files-*/*/*/*/*/"],
+              ["instrumented-jars", "caches/jars-*/*/"],
+              ["kotlin-dsl", "caches/*/kotlin-dsl/*/*/"]
+            ]
+
+

.github/workflows/integTest-caching-configuration-cache.yml

@@ -0,0 +1,65 @@
+name: Test save/restore configuration-cache state
+
+on:
+  pull_request:
+  push:
+  workflow_dispatch:
+
+env:
+  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
+  GRADLE_BUILD_ACTION_CACHE_DEBUG_ENABLED: true
+
+jobs:
+  # Run initial Gradle builds to push initial cache entries
+  # These builds should start fresh without cache hits, due to the seed injected into the cache key above.
+  seed-build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Build with configuration-cache enabled
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test --configuration-cache
+
+  # Test that the project-dot-gradle cache will cache and restore configuration-cache
+  configuration-cache:
+    needs: seed-build
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Execute Gradle build and verify cached configuration
+      uses: ./
+      env: 
+        VERIFY_CACHED_CONFIGURATION: true
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test --configuration-cache
+        cache-read-only: true
+
+  # Check that the build can run when no bundles are restored
+  no-bundles-restored:
+    needs: seed-build
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Execute Gradle build with no cache artifact bundles restored
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test --configuration-cache
+        cache-read-only: true
+        gradle-home-cache-artifact-bundles: '[]'
+

.github/workflows/integTest-caching-gradle-home.yml

@@ -0,0 +1,79 @@
+name: Test save/restore Gradle Home directory
+
+on:
+  pull_request:
+  push:
+  workflow_dispatch:
+
+env:
+  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
+
+jobs:
+  # Run initial Gradle builds to push initial cache entries
+  # These builds should start fresh without cache hits, due to the seed injected into the cache key above.
+  seed-build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Build using Gradle wrapper
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test
+
+  # Test that the gradle-user-home cache will cache dependencies, by running build with --offline
+  dependencies-cache:
+    needs: seed-build
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Execute Gradle build with --offline
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test --offline
+        cache-read-only: true
+
+  # Test that the gradle-user-home cache will cache and restore local build-cache
+  build-cache:
+    needs: seed-build
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Execute Gradle build and verify tasks from cache
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test -DverifyCachedBuild=true
+        cache-read-only: true
+
+  # Check that the build can run when no bundles are restored
+  no-bundles-restored:
+    needs: seed-build
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Execute Gradle build with no cache artifact bundles restored
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test
+        cache-read-only: true
+        gradle-home-cache-artifact-bundles: '[]'
+

.github/workflows/integTest-execution.yml

@@ -0,0 +1,107 @@
+name: Test Gradle execution
+
+on:
+  pull_request:
+  push:
+  workflow_dispatch:
+
+env:
+  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
+
+jobs:   
+  # Tests for executing with different Gradle versions. 
+  # Each build verifies that it is executed with the expected Gradle version.
+  gradle-execution:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        include:
+          - os: windows-latest
+            script-suffix: '.bat'
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Test use defined Gradle version
+      uses: ./
+      with:
+        gradle-version: 6.9
+        build-root-directory: __tests__/samples/no-wrapper
+        arguments: help -DgradleVersionCheck=6.9
+    - name: Test use Gradle version alias
+      uses: ./
+      with:
+        gradle-version: release-candidate
+        build-root-directory: __tests__/samples/no-wrapper
+        arguments: help
+    - name: Test use defined Gradle executable
+      uses: ./
+      with:
+        gradle-executable: __tests__/samples/groovy-dsl/gradlew${{ matrix.script-suffix }}
+        build-root-directory: __tests__/samples/no-wrapper
+        arguments: help -DgradleVersionCheck=7.1.1
+
+  gradle-versions:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        include:
+          - os: windows-latest
+            script-suffix: '.bat'
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Test Gradle 7
+      uses: ./
+      id: gradle7
+      with:
+        gradle-version: 7.2
+        build-root-directory: __tests__/samples/no-wrapper
+        arguments: help -DgradleVersionCheck=7.2
+    - name: Check Gradle 7 scan
+      if: ${{ !steps.gradle7.outputs.build-scan-url }}
+      uses: actions/github-script@v3
+      with:
+        script: |
+          core.setFailed('No build scan detected')    
+    - name: Test Gradle 6
+      uses: ./
+      id: gradle6
+      with:
+        gradle-version: 6.9
+        build-root-directory: __tests__/samples/no-wrapper
+        arguments: help -DgradleVersionCheck=6.9
+    - name: Check Gradle 6 scan
+      if: ${{ !steps.gradle6.outputs.build-scan-url }}
+      uses: actions/github-script@v3
+      with:
+        script: |
+          core.setFailed('No build scan detected')    
+    - name: Test Gradle 5
+      uses: ./
+      id: gradle5
+      with:
+        gradle-version: 5.6.4
+        build-root-directory: __tests__/samples/no-wrapper-gradle-5
+        arguments: help -DgradleVersionCheck=5.6.4
+    - name: Check Gradle 5 scan
+      if: ${{ !steps.gradle5.outputs.build-scan-url }}
+      uses: actions/github-script@v3
+      with:
+        script: |
+          core.setFailed('No build scan detected')    
+    - name: Test Gradle 4
+      uses: ./
+      id: gradle4
+      with:
+        gradle-version: 4.10.3
+        build-root-directory: __tests__/samples/no-wrapper-gradle-4
+        arguments: help -DgradleVersionCheck=4.10.3
+    - name: Check Gradle 4 scan
+      if: ${{ !steps.gradle4.outputs.build-scan-url }}
+      uses: actions/github-script@v3
+      with:
+        script: |
+          core.setFailed('No build scan detected')    
+   

.github/workflows/integTest-gradle-user-home.yml

@@ -0,0 +1,61 @@
+name: Test caching with a custom GRADLE_USER_HOME
+
+on:
+  pull_request:
+  push:
+  workflow_dispatch:
+
+env:
+  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
+  GRADLE_USER_HOME: custom/gradle/home
+
+jobs:
+  # Run initial Gradle builds to push initial cache entries
+  # These builds should start fresh without cache hits, due to the seed injected into the cache key above.
+  seed-build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Build using Gradle wrapper
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test
+
+  # Test that the gradle-user-home cache will cache dependencies, by running build with --offline
+  dependencies-cache:
+    needs: seed-build
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Execute Gradle build with --offline
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test --offline
+        cache-read-only: true
+
+  # Test that the gradle-user-home cache will cache and restore local build-cache
+  build-cache:
+    needs: seed-build
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v2
+    - name: Execute Gradle build and verify tasks from cache
+      uses: ./
+      with:
+        build-root-directory: __tests__/samples/groovy-dsl
+        arguments: test -DverifyCachedBuild=true
+        cache-read-only: true

.github/workflows/integTest-kotlin-dsl.yml

@@ -1,5 +1,4 @@
- # Make sure the action works on a clean machine without building
-name: integration-testing-kotlin-dsl
+name: Test caching with Kotlin DSL
 
 on:
   pull_request:
@@ -7,13 +6,16 @@ on:
   workflow_dispatch:
 
 env:
-  CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
-  CACHE_DEBUG_ENABLED: true
+  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
+  GRADLE_BUILD_ACTION_CACHE_DEBUG_ENABLED: true
 
 jobs:
   # Use kotlin-dsl project to verify caching of generated jars and compiled scripts
   seed-build:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout sources
       uses: actions/checkout@v2
@@ -26,7 +28,10 @@ jobs:
   # Check that the build can run --offline
   verify-build:
     needs: seed-build
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
     steps:
     - name: Checkout sources
       uses: actions/checkout@v2

.github/workflows/integration-testing.yml

@@ -1,121 +0,0 @@
- # Verify the functionality works as expected
-name: integration-testing
-
-on:
-  pull_request:
-  push:
-  workflow_dispatch:
-
-env:
-  CACHE_KEY_PREFIX: ${{github.workflow}}#${{github.run_number}}-
-
-jobs:
-  # Run initial Gradle builds to push initial cache entries
-  # These builds should start fresh without cache hits, due to the seed injected into the cache key above.
-  seed-build:
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-    runs-on: ${{ matrix.os }}
-    steps:
-    - name: Checkout sources
-      uses: actions/checkout@v2
-    - name: Build using Gradle wrapper
-      uses: ./
-      with:
-        build-root-directory: __tests__/samples/basic
-        arguments: test
-    - name: Build with configuration-cache enabled
-      uses: ./
-      with:
-        build-root-directory: __tests__/samples/basic
-        arguments: test --configuration-cache
-   
-  # Tests for executing with different Gradle versions. 
-  # Each build verifies that it is executed with the expected Gradle version.
-  gradle-execution:
-    needs: seed-build
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-        include:
-          - os: windows-latest
-            script-suffix: '.bat'
-    runs-on: ${{ matrix.os }}
-    steps:
-    - name: Checkout sources
-      uses: actions/checkout@v2
-    - name: Test use defined Gradle version
-      uses: ./
-      with:
-        gradle-version: 6.9
-        build-root-directory: __tests__/samples/no-wrapper
-        arguments: help -DgradleVersionCheck=6.9
-        cache-read-only: true
-    - name: Test use Gradle version alias
-      uses: ./
-      with:
-        gradle-version: release-candidate
-        build-root-directory: __tests__/samples/no-wrapper
-        arguments: help -DgradleVersionCheck=7.2
-        cache-read-only: true
-    - name: Test use defined Gradle executable
-      uses: ./
-      with:
-        gradle-executable: __tests__/samples/basic/gradlew${{ matrix.script-suffix }}
-        build-root-directory: __tests__/samples/no-wrapper
-        arguments: help -DgradleVersionCheck=7.1.1
-        cache-read-only: true
-
-  # Test that the gradle-user-home cache will cache dependencies, by running build with --offline
-  dependencies-cache:
-    needs: seed-build
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-    runs-on: ${{ matrix.os }}
-    steps:
-    - name: Checkout sources
-      uses: actions/checkout@v2
-    - name: Execute Gradle build with --offline
-      uses: ./
-      with:
-        build-root-directory: __tests__/samples/basic
-        arguments: test --offline
-        cache-read-only: true
-
-  # Test that the gradle-user-home cache will cache and restore local build-cache
-  build-cache:
-    needs: seed-build
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-    runs-on: ${{ matrix.os }}
-    steps:
-    - name: Checkout sources
-      uses: actions/checkout@v2
-    - name: Execute Gradle build and verify tasks from cache
-      uses: ./
-      with:
-        build-root-directory: __tests__/samples/basic
-        arguments: test -DverifyCachedBuild=true
-        cache-read-only: true
-
-  # Test that the project-dot-gradle cache will cache and restore configuration-cache
-  configuration-cache:
-    needs: seed-build
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-    runs-on: ${{ matrix.os }}
-    steps:
-    - name: Checkout sources
-      uses: actions/checkout@v2
-    - name: Execute Gradle build and verify cached configuration
-      uses: ./
-      env: 
-        VERIFY_CACHED_CONFIGURATION: true
-      with:
-        build-root-directory: __tests__/samples/basic
-        arguments: test --configuration-cache
-        cache-read-only: true

.prettierrc.json

@@ -1,5 +1,5 @@
 {
-    "printWidth": 80,
+    "printWidth": 120,
     "tabWidth": 4,
     "useTabs": false,
     "semi": false,

README.md

@@ -4,7 +4,8 @@ This GitHub Action can be used to execute a Gradle build on any platform support
 
 ## Usage
 
-The following workflow will run `./gradlew build` using the wrapper from the repository on ubuntu, macos and windows. The only prerequisite is to have Java installed: you define the version of Java you need to run the build using the `actions/setup-java` action.
+The following workflow will run `./gradlew build` on ubuntu, macos and windows. 
+The only prerequisite is to have Java installed: you define the version of Java you need to run the build using the `actions/setup-java` action.
 
 ```yaml
 # .github/workflows/gradle-build-pr.yml
@@ -21,14 +22,42 @@ jobs:
     - uses: actions/setup-java@v1
       with:
         java-version: 11
-    - uses: gradle/gradle-build-action@v1
+    - uses: gradle/gradle-build-action@v2
       with:
         arguments: build
 ```
 
-## Gradle arguments
+It is possible to configure multiple Gradle executions to run sequentially in the same job. 
+Each invocation will start its run with the filesystem state remaining from the previous execution.
+
+```yaml
+- uses: gradle/gradle-build-action@v2
+  with:
+    arguments: assemble
+- uses: gradle/gradle-build-action@v2
+  with:
+    arguments: check
+```
+
+### Why is this better than running Gradle directly?
+
+It is possible to directly invoke Gradle in your workflow, and the `setup-java` action provides a simple way to cache Gradle dependencies. 
+
+However, the `gradle-build-action` offers a number of advantages over this approach:
+
+- Easily [run the build with different versions of Gradle](#download-install-and-use-a-specific-gradle-version) using the `gradle-version` parameter. Gradle distributions are automatically downloaded and cached. 
+- More sophisticated and more efficient caching of Gradle User Home between invocations, compared to `setup-java` and most custom configurations using `actions/cache`. [More details below](#caching).
+- Detailed reporting of cache usage and cache configuration options allow you to [optimize the use of the GitHub actions cache](#optimizing-cache-effectiveness).
+- [Automatic capture of build scan links](#build-scans) from the build, making these easier to locate for workflow run.
+
+The `gradle-build-action` is designed to provide these benefits with minimal configuration. 
+
+## Gradle Execution
+
+### Command-line arguments
 
 The `arguments` input can used to pass arbitrary arguments to the `gradle` command line.
+Arguments can be supplied in a single line, or as a multi-line input.
 
 Here are some valid examples:
 ```yaml
@@ -36,48 +65,56 @@ arguments: build
 arguments: check --scan
 arguments: some arbitrary tasks
 arguments: build -PgradleProperty=foo
-arguments: build -DsystemProperty=bar
-....
+arguments: |
+    build
+    --scan
+    -PgradleProperty=foo
+    -DsystemProperty=bar
 ```
 
 See `gradle --help` for more information.
 
-If you need to pass environment variables, simply use the GitHub Actions workflow syntax:
+If you need to pass environment variables, use the GitHub Actions workflow syntax:
 
 ```yaml
-- uses: gradle/gradle-build-action@v1
+- uses: gradle/gradle-build-action@v2
   env:
     CI: true
+  with:
+    arguments: build
 ```
 
-## Run a build from a different directory
+### Gradle build located in a subdirectory
+
+By default, the action will execute Gradle in the root directory of your project. 
+Use the `build-root-directory` input to target a Gradle build in a subdirectory.
 
 ```yaml
-- uses: gradle/gradle-build-action@v1
+- uses: gradle/gradle-build-action@v2
   with:
     build-root-directory: some/subdirectory
 ```
 
-## Use a specific `gradle` executable
+### Using a specific Gradle executable
+
+The action will first look for a Gradle wrapper script in the root directory of your project. 
+If not found, `gradle` will be executed from the PATH.
+Use the `gradle-executable` input to execute using a specific Gradle installation.
 
 ```yaml
- - uses: gradle/gradle-build-action@v1
+ - uses: gradle/gradle-build-action@v2
    with:
-     gradle-executable: path/to/gradle
+     gradle-executable: /path/to/installed/gradle
 ```
 
-## Use a Gradle wrapper from a different directory
- 
-```yaml
- - uses: gradle/gradle-build-action@v1
-   with:
-     gradle-executable: path/to/gradlew
- ```
+This mechanism can also be used to target a Gradle wrapper script that is located in a non-default location.
 
-## Setup and use a declared Gradle version
+### Download, install and use a specific Gradle version
+
+The `gradle-build-action` is able to download and install a specific Gradle version to execute.
 
 ```yaml
- - uses: gradle/gradle-build-action@v1
+ - uses: gradle/gradle-build-action@v2
    with:
      gradle-version: 6.5
 ```
@@ -94,7 +131,7 @@ Moreover, you can use the following aliases:
 | `nightly`           | The latest [nightly](https://gradle.org/nightly/), fails if none. |
 | `release-nightly`   | The latest [release nightly](https://gradle.org/release-nightly/), fails if none.      |
 
-This can be handy to, for example, automatically test your build with the next Gradle version once a release candidate is out:
+This can be handy to automatically verify your build works with the latest release candidate of Gradle:
 
 ```yaml
 # .github/workflows/test-gradle-rc.yml
@@ -110,7 +147,7 @@ jobs:
     - uses: actions/setup-java@v1
       with:
         java-version: 11
-    - uses: gradle/gradle-build-action@v1
+    - uses: gradle/gradle-build-action@v2
       with:
         gradle-version: release-candidate
         arguments: build --dry-run # just test build configuration
@@ -118,50 +155,111 @@ jobs:
 
 ## Caching
 
-This action provides 3 levels of caching to help speed up your GitHub Actions:
-
-- `distributions` caches any distributions downloaded to satisfy a `gradle-version` parameter ;
-- `gradle-user-home` caches downloaded dependencies, wrapper distributions, and other stuff from the Gradle User home directory ;
-- `project-dot-gradle` caches stored [configuration-cache](https://docs.gradle.org/nightly/userguide/configuration_cache.html) state, saving time configuring the build.
-
-Each of these are enabled by default. To save caching space, you can disable any of them as follows:
-
-```yaml
-distributions-cache-enabled: true
-gradle-user-home-cache-enabled: true
-project-dot-gradle-cache-enabled: true
-```
-
-The distributions cache uses a cache key that is unique to the downloaded distribution. This will not change over time.
-
-The `gradle-user-home` and `project-dot-gradle` caches compute a cache key based on the current commit and the Gradle invocation.
-As such, these are likely to change on each subsequent run of GitHub actions, allowing the most recent state to always be available in the GitHub actions cache.
-
 By default, this action aims to cache any and all reusable state that may be speed up a subsequent build invocation. 
 
-At this time it is not possible to fine-tune this caching. If you have a legitimate use case for fine-grained caching or restricting which files are cached, please raise an issue.
+The state that is cached includes:
+- Any distributions downloaded to satisfy a `gradle-version` parameter ;
+- A subset of the Gradle User Home directory, including downloaded dependencies, wrapper distributions, and the local build cache ;
+- Any [configuration-cache](https://docs.gradle.org/nightly/userguide/configuration_cache.html) data stored in the project `.gradle` directory.
+
+To reduce the space required for caching, this action makes a best effort to reduce duplication in cache entries.
+
+Caching is enabled by default. You can disable caching for the action as follows:
+```yaml
+cache-disabled: true
+```
+
+### Cache keys
+
+For distributions downloaded to satisfy a `gradle-version` parametere are stored outside of Gradle User Home and cached separately. The cache key is unique to the downloaded distribution and will not change over time.
+
+The state of the Gradle User Home and configuration-cache are highly dependent on the Gradle execution, so the cache key is composed of the current commit hash and the GitHub actions job id.
+As such, the cache key is likely to change on each subsequent run of GitHub actions. 
+This allows the most recent state to always be available in the GitHub actions cache.
+
+To reduce duplication between cache entries, certain artifacts are cached independently based on their identity.
+Artifacts that are cached independently include downloaded dependencies, downloaded wrapper distributions and generated Gradle API jars.
+For example, this means that all jobs executing a particular version of the Gradle wrapper will share common entries for wrapper distributions and for generated Gradle API jars.
 
 ### Using the caches read-only
 
-Cache storage space is limited for GitHub actions, and writing new cache entries can trigger the deletion of exising entries.
 In some circumstances, it makes sense for a Gradle invocation to read any existing cache entries but not to write changes back.
 For example, you may want to write cache entries for builds on your `main` branch, but not for any PR build invocations.
 
-You can enable read-only caching for any of the caches asfollows:
+You can enable read-only caching for any of the caches as follows:
 
 ```yaml
-distributions-cache-enabled: read-only
-gradle-user-home-cache-enabled: read-only
-project-dot-gradle-cache-enabled: read-only
+# Only write to the cache for builds on the 'main' branch.
+# Builds on other branches will only read existing entries from the cache.
+cache-read-only: ${{ github.ref != 'refs/heads/main' }}
 ```
 
+### Gradle User Home cache tuning
+
+As well as any wrapper distributions, the action will attempt to save and restore the `caches` and `notifications` directories from Gradle User Home.
+
+The contents to be cached can be fine tuned by including and excluding certain paths with Gradle User Home.
+
+```yaml
+# Cache downloaded JDKs in addition to the default directories.
+gradle-home-cache-includes: |
+    caches
+    notifications
+    jdks
+# Exclude the local build-cache from the directories cached.
+gradle-home-cache-excludes: |
+    caches/build-cache-1
+```
+
+You can specify any number of fixed paths or patterns to include or exclude. 
+File pattern support is documented at https://docs.github.com/en/actions/learn-github-actions/workflow-syntax-for-github-actions#patterns-to-match-file-paths.
+
+### Cache debugging and analysis
+
+Gradle User Home state will be restored from the cache during the first `gradle-build-action` step for any workflow job. 
+This state will be saved back to the cache at the end of the job, after all Gradle executions have completed.
+A report of all cache entries restored and saved is printed to the action log when saving the cache entries. 
+This report can provide valuable insignt into how much cache space is being used.
+
+It is possible to enable additional debug logging for cache operations. You do via the `GRADLE_BUILD_ACTION_CACHE_DEBUG_ENABLED` environment variable:
+
+```yaml
+env:
+  GRADLE_BUILD_ACTION_CACHE_DEBUG_ENABLED: true
+```
+
+Note that this setting will also prevent certain cache operations from running in parallel, further assisting with debugging.
+
+### Optimizing cache effectiveness
+
+Cache storage space for GitHub actions is limited, and writing new cache entries can trigger the deletion of exising entries.
+Eviction of shared cache entries can reduce cache effectiveness, slowing down your `gradle-build-action` steps.
+
+There are a number of actions you can take if your cache use is less effective due to entry eviction.
+
+#### Only write to the cache from the default branch
+
+GitHub cache entries are not shared between builds on different branches. This means that identical cache entries will be stored separately for different branches.
+The exception to the is cache entries for the default (`master`/`main`) branch can be read by actions invoked for other branches.
+
+An easy way to reduce cache usage when you run builds on many different branches is to only permit your default branch to write to the cache,
+with all other branch builds using `cache-read-only`. See [Using the caches read-only](#using-the-caches-read-only) for more details.
+
+Similarly, you could use `cache-read-only` for certain jobs in the workflow, and instead have these jobs reuse the cache content from upstream jobs.
+
+#### Exclude content from Gradle User Home cache
+
+Each build is different, and some builds produce more Gradle User Home content than others.
+[Cache debugging ](#cache-debugging-and-analysis) can provide insight into which cache entries are the largest,
+and you can selectively [exclude content using `gradle-home-cache-exclude`](#gradle-user-home-cache-tuning).
+
 ## Build scans
 
-If your build publishes a [build scan](https://gradle.com/build-scans/) the `gradle-build-action` action will emit the link to the published build scan as an output named `build-scan-url`.
+If your build publishes a [build scan](https://gradle.com/build-scans/) the `gradle-build-action` action will:
+- Add a notice with the link to the GitHub Actions user interface
+- Emit the link to the published build scan as an output named `build-scan-url`.
 
-You can then use that link in subsequent actions of your workflow.
-
-For example:
+You can then use that link in subsequent actions of your workflow. For example:
 
 ```yaml
 # .github/workflows/gradle-build-pr.yml
@@ -169,19 +267,16 @@ name: Run Gradle on PRs
 on: pull_request
 jobs:
   gradle:
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-java@v1
       with:
         java-version: 11
-    - uses: gradle/gradle-build-action@v1
+    - uses: gradle/gradle-build-action@v2
+      id: gradle
       with:
         arguments: build
-      id: gradle
     - name: "Comment build scan url"
       uses: actions/github-script@v3
       if: github.event_name == 'pull_request' && failure()

__tests__/cache-base.test.ts

@@ -0,0 +1,95 @@
+import {CacheEntryListener, CacheListener} from '../src/cache-base'
+
+describe('caching report', () => {
+    describe('reports not fully restored', () => {
+        it('with one requested entry report', async () => {
+            const report = new CacheListener()
+            report.entry('foo').markRequested('1', ['2'])
+            report.entry('bar').markRequested('3').markRestored('4', 500)
+            expect(report.fullyRestored).toBe(false)
+        })
+    })
+    describe('reports fully restored', () => {
+        it('when empty', async () => {
+            const report = new CacheListener()
+            expect(report.fullyRestored).toBe(true)
+        })
+        it('with empty entry reports', async () => {
+            const report = new CacheListener()
+            report.entry('foo')
+            report.entry('bar')
+            expect(report.fullyRestored).toBe(true)
+        })
+        it('with restored entry report', async () => {
+            const report = new CacheListener()
+            report.entry('bar').markRequested('3').markRestored('4', 300)
+            expect(report.fullyRestored).toBe(true)
+        })
+        it('with multiple restored entry reportss', async () => {
+            const report = new CacheListener()
+            report.entry('foo').markRestored('4', 3300)
+            report.entry('bar').markRequested('3').markRestored('4', 333)
+            expect(report.fullyRestored).toBe(true)
+        })
+    })
+    describe('can be stringified and rehydrated', () => {
+        it('when empty', async () => {
+            const report = new CacheListener()
+
+            const stringRep = report.stringify()
+            const reportClone: CacheListener = CacheListener.rehydrate(stringRep)
+
+            expect(reportClone.cacheEntries).toEqual([])
+
+            // Can call methods on rehydrated
+            expect(reportClone.entry('foo')).toBeInstanceOf(CacheEntryListener)
+        })
+        it('with entry reports', async () => {
+            const report = new CacheListener()
+            report.entry('foo')
+            report.entry('bar')
+            report.entry('baz')
+
+            const stringRep = report.stringify()
+            const reportClone: CacheListener = CacheListener.rehydrate(stringRep)
+
+            expect(reportClone.cacheEntries.length).toBe(3)
+            expect(reportClone.cacheEntries[0].entryName).toBe('foo')
+            expect(reportClone.cacheEntries[1].entryName).toBe('bar')
+            expect(reportClone.cacheEntries[2].entryName).toBe('baz')
+
+            expect(reportClone.entry('foo')).toBe(reportClone.cacheEntries[0])
+        })
+        it('with rehydrated entry report', async () => {
+            const report = new CacheListener()
+            const entryReport = report.entry('foo')
+            entryReport.markRequested('1', ['2', '3'])
+            entryReport.markSaved('4', 100)
+
+            const stringRep = report.stringify()
+            const reportClone: CacheListener = CacheListener.rehydrate(stringRep)
+            const entryClone = reportClone.entry('foo')
+
+            expect(entryClone.requestedKey).toBe('1')
+            expect(entryClone.requestedRestoreKeys).toEqual(['2', '3'])
+            expect(entryClone.savedKey).toBe('4')
+        })
+        it('with live entry report', async () => {
+            const report = new CacheListener()
+            const entryReport = report.entry('foo')
+            entryReport.markRequested('1', ['2', '3'])
+
+            const stringRep = report.stringify()
+            const reportClone: CacheListener = CacheListener.rehydrate(stringRep)
+            const entryClone = reportClone.entry('foo')
+
+            // Check type and call method on rehydrated entry report
+            expect(entryClone).toBeInstanceOf(CacheEntryListener)
+            entryClone.markSaved('4', 100)
+
+            expect(entryClone.requestedKey).toBe('1')
+            expect(entryClone.requestedRestoreKeys).toEqual(['2', '3'])
+            expect(entryClone.savedKey).toBe('4')
+        })
+    })
+})

__tests__/cache-utils.test.ts

@@ -1,5 +1,4 @@
 import * as cacheUtils from '../src/cache-utils'
-import * as path from 'path'
 
 describe('cacheUtils-utils', () => {
     describe('can hash', () => {
@@ -11,5 +10,11 @@ describe('cacheUtils-utils', () => {
             const hash = cacheUtils.hashStrings(['foo', 'bar', 'baz'])
             expect(hash).toBe('6df23dc03f9b54cc38a0fc1483df6e21')
         })
+        it('normalized filenames', async () => {
+            const fileNames = ['/foo/bar/baz.zip', '../boo.html']
+            const posixHash = cacheUtils.hashFileNames(fileNames)
+            const windowsHash = cacheUtils.hashFileNames(fileNames)
+            expect(posixHash).toBe(windowsHash)
+        })
     })
 })

__tests__/samples/basic/.gitattributes

@@ -1,6 +0,0 @@
-#
-# https://help.github.com/articles/dealing-with-line-endings/
-#
-# These are explicitly windows files and should use crlf
-*.bat           text eol=crlf
-

__tests__/samples/kotlin-dsl/.gitattributes

@@ -1,6 +0,0 @@
-#
-# https://help.github.com/articles/dealing-with-line-endings/
-#
-# These are explicitly windows files and should use crlf
-*.bat           text eol=crlf
-

__tests__/samples/kotlin-dsl/.gitignore

@@ -1,5 +0,0 @@
-# Ignore Gradle project-specific cache directory
-.gradle
-
-# Ignore Gradle build output directory
-build

__tests__/samples/kotlin-dsl/settings.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    id("com.gradle.enterprise") version("3.6.4")
+    id("com.gradle.enterprise") version("3.7")
 }
 
 gradleEnterprise {

__tests__/samples/no-wrapper-gradle-4/build.gradle

@@ -0,0 +1,10 @@
+plugins {
+    id "com.gradle.build-scan" version "1.16"
+}
+
+buildScan {
+    termsOfServiceUrl = "https://gradle.com/terms-of-service"
+    termsOfServiceAgree = "yes"
+    publishAlways()
+}
+

__tests__/samples/no-wrapper-gradle-4/settings.gradle

@@ -0,0 +1,8 @@
+rootProject.name = 'no-wrapper'
+
+println "Using Gradle version: ${gradle.gradleVersion}"
+
+def gradleVersionCheck = System.properties.gradleVersionCheck
+if (gradleVersionCheck && gradle.gradleVersion != gradleVersionCheck) {
+    throw new RuntimeException("Got the wrong version: expected ${gradleVersionCheck} but was ${gradle.gradleVersion}")
+}

__tests__/samples/no-wrapper-gradle-5/build.gradle

@@ -0,0 +1,12 @@
+plugins {
+    id("com.gradle.build-scan") version("3.7")
+}
+
+gradleEnterprise {
+    buildScan {
+        termsOfServiceUrl = "https://gradle.com/terms-of-service"
+        termsOfServiceAgree = "yes"
+        publishAlways()
+        uploadInBackground = false
+    }
+}

__tests__/samples/no-wrapper-gradle-5/settings.gradle

@@ -0,0 +1,8 @@
+rootProject.name = 'no-wrapper'
+
+println "Using Gradle version: ${gradle.gradleVersion}"
+
+def gradleVersionCheck = System.properties.gradleVersionCheck
+if (gradleVersionCheck && gradle.gradleVersion != gradleVersionCheck) {
+    throw new RuntimeException("Got the wrong version: expected ${gradleVersionCheck} but was ${gradle.gradleVersion}")
+}

__tests__/samples/no-wrapper/.gitattributes

@@ -1,6 +0,0 @@
-#
-# https://help.github.com/articles/dealing-with-line-endings/
-#
-# These are explicitly windows files and should use crlf
-*.bat           text eol=crlf
-

__tests__/samples/no-wrapper/.gitignore

@@ -1,5 +0,0 @@
-# Ignore Gradle project-specific cache directory
-.gradle
-
-# Ignore Gradle build output directory
-build

__tests__/samples/no-wrapper/settings.gradle

@@ -1,3 +1,16 @@
+plugins {
+    id("com.gradle.enterprise") version("3.7")
+}
+
+gradleEnterprise {
+    buildScan {
+        termsOfServiceUrl = "https://gradle.com/terms-of-service"
+        termsOfServiceAgree = "yes"
+        publishAlways()
+        uploadInBackground = false
+    }
+}
+
 rootProject.name = 'no-wrapper'
 
 println "Using Gradle version: ${gradle.gradleVersion}"

action.yml

@@ -7,29 +7,65 @@ inputs:
   gradle-executable:
     description: Path to the Gradle executable
     required: false
+
   gradle-version:
     description: Gradle version to use
     required: false
+
   build-root-directory:
     description: Path to the root directory of the build
     required: false
+
   arguments:
-    description: Gradle command line arguments, see gradle --help
+    description: Gradle command line arguments (supports multi-line input)
     required: false
+
   cache-disabled:
     description: When 'true', all caching is disabled. No entries will be written to or read from the cache.
     required: false
     default: false
+
   cache-read-only:
-    description: When 'true', existing entries will be read from the cache but no entries will be written
+    description: When 'true', existing entries will be read from the cache but no entries will be written.
     required: false
-    # TODO: It might be useful to default to read-only for PRs, or non-main branch.
     default: false 
+  # e.g. Use the following setting to only write cache entries from your 'main' branch
+  #     cache-read-only: ${{ github.ref != 'refs/heads/main' }}
+
+  gradle-home-cache-includes:
+    description: Paths within Gradle User Home to cache.
+    required: false
+    default: |
+        caches
+        notifications
+
+  gradle-home-cache-excludes:
+    description: Paths within Gradle User Home to exclude from cache.
+    required: false
   
+  # e.g. Use the following setting to prevent the local build cache from being saved/restored
+  #      gradle-home-cache-excludes: |
+  #           ["caches/build-cache-1"]
+
+  # EXPERIMENTAL & INTERNAL CONFIGURATION PROPERTIES
+  # The following action properties allow fine-grained tweaking of the action caching behaviour.
+  # These properties are not designed for production use, and may change without notice in a subsequent release of `gradle-build-action`.
+  # Use at your own risk!
   workflow-job-context:
-    description: Used to uniquely identify the current job invocation. Defaults to the matrix values for this job; this should not be overridden by users.
+    description: Used to uniquely identify the current job invocation. Defaults to the matrix values for this job; this should not be overridden by users (INTERNAL).
     required: false
     default: ${{ toJSON(matrix) }}
+  gradle-home-cache-artifact-bundles:
+    description: Names and patterns of artifact bundles to cache separately. (EXPERIMENTAL - may be changed/removed without notice)
+    required: false
+    default: |
+        [
+          ["generated-gradle-jars", "caches/*/generated-gradle-jars/*.jar"],
+          ["wrapper-zips", "wrapper/dists/*/*/*.zip"],
+          ["dependencies", "caches/modules-*/files-*/*/*/*/*/"],
+          ["instrumented-jars", "caches/jars-*/*/"],
+          ["kotlin-dsl", "caches/*/kotlin-dsl/*/*/"]
+        ]
 
 outputs:
   build-scan-url:

dist/main/index.js

@@ -1,2 +1,2 @@
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+require('./sourcemap-register.js');module.exports=function(e,t){"use strict";var n={};function __webpack_require__(t){if(n[t]){return n[t].exports}var r=n[t]={i:t,l:false,exports:{}};var i=true;try{e[t].call(r.exports,r,r.exports,__webpack_require__);i=false}finally{if(i)delete n[t]}r.l=true;return r.exports}__webpack_require__.ab=__dirname+"/";function startup(){return __webpack_require__(878)}return startup()}([,function(e,t,n){"use strict";var r=this&&this.__createBinding||(Object.create?function(e,t,n,r){if(r===undefined)r=n;Object.defineProperty(e,r,{enumerable:true,get:function(){return t[n]}})}:function(e,t,n,r){if(r===undefined)r=n;e[r]=t[n]});var i=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:true,value:t})}:function(e,t){e["default"]=t});var o=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(e!=null)for(var n in e)if(n!=="default"&&Object.hasOwnProperty.call(e,n))r(t,e,n);i(t,e);return t};var a=this&&this.__awaiter||function(e,t,n,r){function adopt(e){return e instanceof n?e:new n(function(t){t(e)})}return new(n||(n=Promise))(function(n,i){function fulfilled(e){try{step(r.next(e))}catch(e){i(e)}}function rejected(e){try{step(r["throw"](e))}catch(e){i(e)}}function step(e){e.done?n(e.value):adopt(e.value).then(fulfilled,rejected)}step((r=r.apply(e,t||[])).next())})};Object.defineProperty(t,"__esModule",{value:true});t.findInPath=t.which=t.mkdirP=t.rmRF=t.mv=t.cp=void 0;const s=n(357);const c=o(n(129));const u=o(n(622));const l=n(669);const p=o(n(672));const m=l.promisify(c.exec);const d=l.promisify(c.execFile);function cp(e,t,n={}){return a(this,void 0,void 0,function*(){const{force:r,recursive:i,copySourceDirectory:o}=readCopyOptions(n);const a=(yield p.exists(t))?yield p.stat(t):null;if(a&&a.isFile()&&!r){return}const s=a&&a.isDirectory()&&o?u.join(t,u.basename(e)):t;if(!(yield p.exists(e))){throw new Error(`no such file or directory: ${e}`)}const c=yield p.stat(e);if(c.isDirectory()){if(!i){throw new Error(`Failed to copy. ${e} is a directory, but tried to copy without recursive flag.`)}else{yield cpDirRecursive(e,s,0,r)}}else{if(u.relative(e,s)===""){throw new Error(`'${s}' and '${e}' are the same file`)}yield copyFile(e,s,r)}})}t.cp=cp;function mv(e,t,n={}){return a(this,void 0,void 0,function*(){if(yield p.exists(t)){let r=true;if(yield p.isDirectory(t)){t=u.join(t,u.basename(e));r=yield p.exists(t)}if(r){if(n.force==null||n.force){yield rmRF(t)}else{throw new Error("Destination already exists")}}}yield mkdirP(u.dirname(t));yield p.rename(e,t)})}t.mv=mv;function rmRF(e){return a(this,void 0,void 0,function*(){if(p.IS_WINDOWS){if(/[*"<>|]/.test(e)){throw new Error('File path must not contain `*`, `"`, `<`, `>` or `|` on Windows')}try{const t=p.getCmdPath();if(yield p.isDirectory(e,true)){yield m(`${t} /s /c "rd /s /q "%inputPath%""`,{env:{inputPath:e}})}else{yield m(`${t} /s /c "del /f /a "%inputPath%""`,{env:{inputPath:e}})}}catch(e){if(e.code!=="ENOENT")throw e}try{yield p.unlink(e)}catch(e){if(e.code!=="ENOENT")throw e}}else{let t=false;try{t=yield p.isDirectory(e)}catch(e){if(e.code!=="ENOENT")throw e;return}if(t){yield d(`rm`,[`-rf`,`${e}`])}else{yield p.unlink(e)}}})}t.rmRF=rmRF;function mkdirP(e){return a(this,void 0,void 0,function*(){s.ok(e,"a path argument must be provided");yield p.mkdir(e,{recursive:true})})}t.mkdirP=mkdirP;function which(e,t){return a(this,void 0,void 0,function*(){if(!e){throw new Error("parameter 'tool' is required")}if(t){const t=yield which(e,false);if(!t){if(p.IS_WINDOWS){throw new Error(`Unable to locate executable file: ${e}. 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 //# sourceMappingURL=index.js.map

dist/post/index.js.map

@@ -1 +1 @@
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package.json

@@ -4,6 +4,7 @@
   "private": true,
   "description": "Execute Gradle Build",
   "scripts": {
+    "postinstall": "patch-package",
     "format": "prettier --write **/*.ts",
     "format-check": "prettier --check **/*.ts",
     "lint": "eslint src/**/*.ts",
@@ -21,7 +22,6 @@
     "github-actions",
     "gradle"
   ],
-  "author": "Paul Merlin <[email protected]>",
   "license": "MIT",
   "dependencies": {
     "@actions/cache": "1.0.7",
@@ -31,10 +31,11 @@
     "@actions/glob": "0.2.0",
     "@actions/http-client": "1.0.11",
     "@actions/tool-cache": "1.7.1",
+    "patch-package": "6.4.7",
     "string-argv": "0.3.1"
   },
   "devDependencies": {
-    "@types/jest": "26.0.23",
+    "@types/jest": "27.0.2",
     "@types/node": "14.17.3",
     "@types/unzipper": "0.10.4",
     "@typescript-eslint/parser": "4.28.2",
@@ -42,11 +43,11 @@
     "eslint": "7.30.0",
     "eslint-plugin-github": "4.1.3",
     "eslint-plugin-jest": "24.3.6",
-    "jest": "26.6.3",
-    "jest-circus": "26.6.3",
+    "jest": "27.3.1",
+    "jest-circus": "27.3.1",
     "js-yaml": "3.14.1",
     "prettier": "2.3.2",
-    "ts-jest": "26.5.6",
+    "ts-jest": "27.0.7",
     "typescript": "4.3.5"
   }
 }

patches/@actions+cache+1.0.7.patch

@@ -0,0 +1,92 @@
+diff --git a/node_modules/@actions/cache/lib/cache.d.ts b/node_modules/@actions/cache/lib/cache.d.ts
+index 805a8e5..d3ab419 100644
+--- a/node_modules/@actions/cache/lib/cache.d.ts
++++ b/node_modules/@actions/cache/lib/cache.d.ts
+@@ -5,6 +5,11 @@ export declare class ValidationError extends Error {
+ export declare class ReserveCacheError extends Error {
+     constructor(message: string);
+ }
++export declare class CacheEntry {
++    key: string;
++    size?: number;
++    constructor(key: string, size?: number);
++}
+ /**
+  * Restores cache from keys
+  *
+@@ -14,7 +19,7 @@ export declare class ReserveCacheError extends Error {
+  * @param downloadOptions cache download options
+  * @returns string returns the key for the cache hit, otherwise returns undefined
+  */
+-export declare function restoreCache(paths: string[], primaryKey: string, restoreKeys?: string[], options?: DownloadOptions): Promise<string | undefined>;
++export declare function restoreCache(paths: string[], primaryKey: string, restoreKeys?: string[], options?: DownloadOptions): Promise<CacheEntry | undefined>;
+ /**
+  * Saves a list of files with the specified key
+  *
+@@ -23,4 +28,4 @@ export declare function restoreCache(paths: string[], primaryKey: string, restor
+  * @param options cache upload options
+  * @returns number returns cacheId if the cache was saved successfully and throws an error if save fails
+  */
+-export declare function saveCache(paths: string[], key: string, options?: UploadOptions): Promise<number>;
++export declare function saveCache(paths: string[], key: string, options?: UploadOptions): Promise<CacheEntry>;
+diff --git a/node_modules/@actions/cache/lib/cache.js b/node_modules/@actions/cache/lib/cache.js
+index df78fe0..540114f 100644
+--- a/node_modules/@actions/cache/lib/cache.js
++++ b/node_modules/@actions/cache/lib/cache.js
+@@ -37,6 +37,13 @@ class ReserveCacheError extends Error {
+     }
+ }
+ exports.ReserveCacheError = ReserveCacheError;
++class CacheEntry {
++    constructor(key, size) {
++        this.key = key;
++        this.size = size;
++    }
++}
++exports.CacheEntry = CacheEntry;
+ function checkPaths(paths) {
+     if (!paths || paths.length === 0) {
+         throw new ValidationError(`Path Validation Error: At least one directory or file path is required`);
+@@ -84,6 +91,7 @@ function restoreCache(paths, primaryKey, restoreKeys, options) {
+         }
+         const archivePath = path.join(yield utils.createTempDirectory(), utils.getCacheFileName(compressionMethod));
+         core.debug(`Archive Path: ${archivePath}`);
++        const restoredEntry = new CacheEntry(cacheEntry.cacheKey);
+         try {
+             // Download the cache from the cache entry
+             yield cacheHttpClient.downloadCache(cacheEntry.archiveLocation, archivePath, options);
+@@ -91,6 +99,7 @@ function restoreCache(paths, primaryKey, restoreKeys, options) {
+                 yield tar_1.listTar(archivePath, compressionMethod);
+             }
+             const archiveFileSize = utils.getArchiveFileSizeIsBytes(archivePath);
++            restoredEntry.size = archiveFileSize;
+             core.info(`Cache Size: ~${Math.round(archiveFileSize / (1024 * 1024))} MB (${archiveFileSize} B)`);
+             yield tar_1.extractTar(archivePath, compressionMethod);
+             core.info('Cache restored successfully');
+@@ -104,7 +113,7 @@ function restoreCache(paths, primaryKey, restoreKeys, options) {
+                 core.debug(`Failed to delete archive: ${error}`);
+             }
+         }
+-        return cacheEntry.cacheKey;
++        return restoredEntry;
+     });
+ }
+ exports.restoreCache = restoreCache;
+@@ -147,7 +156,7 @@ function saveCache(paths, key, options) {
+         }
+         core.debug(`Saving Cache (ID: ${cacheId})`);
+         yield cacheHttpClient.saveCache(cacheId, archivePath, options);
+-        return cacheId;
++        return new CacheEntry(key, archiveFileSize);
+     });
+ }
+ exports.saveCache = saveCache;
+diff --git a/node_modules/@actions/cache/lib/cache.js.map b/node_modules/@actions/cache/lib/cache.js.map
+index 05fc369..41b9189 100644
+--- a/node_modules/@actions/cache/lib/cache.js.map
++++ b/node_modules/@actions/cache/lib/cache.js.map
+@@ -1 +1 @@
+-{"version":3,"file":"cache.js","sourceRoot":"","sources":["../src/cache.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,oDAAqC;AACrC,2CAA4B;AAC5B,6DAA8C;AAC9C,4EAA6D;AAC7D,wCAA6D;AAG7D,MAAa,eAAgB,SAAQ,KAAK;IACxC,YAAY,OAAe;QACzB,KAAK,CAAC,OAAO,CAAC,CAAA;QACd,IAAI,CAAC,IAAI,GAAG,iBAAiB,CAAA;QAC7B,MAAM,CAAC,cAAc,CAAC,IAAI,EAAE,eAAe,CAAC,SAAS,CAAC,CAAA;IACxD,CAAC;CACF;AAND,0CAMC;AAED,MAAa,iBAAkB,SAAQ,KAAK;IAC1C,YAAY,OAAe;QACzB,KAAK,CAAC,OAAO,CAAC,CAAA;QACd,IAAI,CAAC,IAAI,GAAG,mBAAmB,CAAA;QAC/B,MAAM,CAAC,cAAc,CAAC,IAAI,EAAE,iBAAiB,CAAC,SAAS,CAAC,CAAA;IAC1D,CAAC;CACF;AAND,8CAMC;AAED,SAAS,UAAU,CAAC,KAAe;IACjC,IAAI,CAAC,KAAK,IAAI,KAAK,CAAC,MAAM,KAAK,CAAC,EAAE;QAChC,MAAM,IAAI,eAAe,CACvB,wEAAwE,CACzE,CAAA;KACF;AACH,CAAC;AAED,SAAS,QAAQ,CAAC,GAAW;IAC3B,IAAI,GAAG,CAAC,MAAM,GAAG,GAAG,EAAE;QACpB,MAAM,IAAI,eAAe,CACvB,yBAAyB,GAAG,wCAAwC,CACrE,CAAA;KACF;IACD,MAAM,KAAK,GAAG,SAAS,CAAA;IACvB,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE;QACpB,MAAM,IAAI,eAAe,CACvB,yBAAyB,GAAG,yBAAyB,CACtD,CAAA;KACF;AACH,CAAC;AAED;;;;;;;;GAQG;AACH,SAAsB,YAAY,CAChC,KAAe,EACf,UAAkB,EAClB,WAAsB,EACtB,OAAyB;;QAEzB,UAAU,CAAC,KAAK,CAAC,CAAA;QAEjB,WAAW,GAAG,WAAW,IAAI,EAAE,CAAA;QAC/B,MAAM,IAAI,GAAG,CAAC,UAAU,EAAE,GAAG,WAAW,CAAC,CAAA;QAEzC,IAAI,CAAC,KAAK,CAAC,gBAAgB,CAAC,CAAA;QAC5B,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,SAAS,CAAC,IAAI,CAAC,CAAC,CAAA;QAEhC,IAAI,IAAI,CAAC,MAAM,GAAG,EAAE,EAAE;YACpB,MAAM,IAAI,eAAe,CACvB,4DAA4D,CAC7D,CAAA;SACF;QACD,KAAK,MAAM,GAAG,IAAI,IAAI,EAAE;YACtB,QAAQ,CAAC,GAAG,CAAC,CAAA;SACd;QAED,MAAM,iBAAiB,GAAG,MAAM,KAAK,CAAC,oBAAoB,EAAE,CAAA;QAE5D,qCAAqC;QACrC,MAAM,UAAU,GAAG,MAAM,eAAe,CAAC,aAAa,CAAC,IAAI,EAAE,KAAK,EAAE;YAClE,iBAAiB;SAClB,CAAC,CAAA;QACF,IAAI,EAAC,UAAU,aAAV,UAAU,uBAAV,UAAU,CAAE,eAAe,CAAA,EAAE;YAChC,kBAAkB;YAClB,OAAO,SAAS,CAAA;SACjB;QAED,MAAM,WAAW,GAAG,IAAI,CAAC,IAAI,CAC3B,MAAM,KAAK,CAAC,mBAAmB,EAAE,EACjC,KAAK,CAAC,gBAAgB,CAAC,iBAAiB,CAAC,CAC1C,CAAA;QACD,IAAI,CAAC,KAAK,CAAC,iBAAiB,WAAW,EAAE,CAAC,CAAA;QAE1C,IAAI;YACF,0CAA0C;YAC1C,MAAM,eAAe,CAAC,aAAa,CACjC,UAAU,CAAC,eAAe,EAC1B,WAAW,EACX,OAAO,CACR,CAAA;YAED,IAAI,IAAI,CAAC,OAAO,EAAE,EAAE;gBAClB,MAAM,aAAO,CAAC,WAAW,EAAE,iBAAiB,CAAC,CAAA;aAC9C;YAED,MAAM,eAAe,GAAG,KAAK,CAAC,yBAAyB,CAAC,WAAW,CAAC,CAAA;YACpE,IAAI,CAAC,IAAI,CACP,gBAAgB,IAAI,CAAC,KAAK,CACxB,eAAe,GAAG,CAAC,IAAI,GAAG,IAAI,CAAC,CAChC,QAAQ,eAAe,KAAK,CAC9B,CAAA;YAED,MAAM,gBAAU,CAAC,WAAW,EAAE,iBAAiB,CAAC,CAAA;YAChD,IAAI,CAAC,IAAI,CAAC,6BAA6B,CAAC,CAAA;SACzC;gBAAS;YACR,0CAA0C;YAC1C,IAAI;gBACF,MAAM,KAAK,CAAC,UAAU,CAAC,WAAW,CAAC,CAAA;aACpC;YAAC,OAAO,KAAK,EAAE;gBACd,IAAI,CAAC,KAAK,CAAC,6BAA6B,KAAK,EAAE,CAAC,CAAA;aACjD;SACF;QAED,OAAO,UAAU,CAAC,QAAQ,CAAA;IAC5B,CAAC;CAAA;AAvED,oCAuEC;AAED;;;;;;;GAOG;AACH,SAAsB,SAAS,CAC7B,KAAe,EACf,GAAW,EACX,OAAuB;;QAEvB,UAAU,CAAC,KAAK,CAAC,CAAA;QACjB,QAAQ,CAAC,GAAG,CAAC,CAAA;QAEb,MAAM,iBAAiB,GAAG,MAAM,KAAK,CAAC,oBAAoB,EAAE,CAAA;QAE5D,IAAI,CAAC,KAAK,CAAC,iBAAiB,CAAC,CAAA;QAC7B,MAAM,OAAO,GAAG,MAAM,eAAe,CAAC,YAAY,CAAC,GAAG,EAAE,KAAK,EAAE;YAC7D,iBAAiB;SAClB,CAAC,CAAA;QACF,IAAI,OAAO,KAAK,CAAC,CAAC,EAAE;YAClB,MAAM,IAAI,iBAAiB,CACzB,oCAAoC,GAAG,2CAA2C,CACnF,CAAA;SACF;QACD,IAAI,CAAC,KAAK,CAAC,aAAa,OAAO,EAAE,CAAC,CAAA;QAElC,MAAM,UAAU,GAAG,MAAM,KAAK,CAAC,YAAY,CAAC,KAAK,CAAC,CAAA;QAClD,IAAI,CAAC,KAAK,CAAC,cAAc,CAAC,CAAA;QAC1B,IAAI,CAAC,KAAK,CAAC,GAAG,IAAI,CAAC,SAAS,CAAC,UAAU,CAAC,EAAE,CAAC,CAAA;QAE3C,MAAM,aAAa,GAAG,MAAM,KAAK,CAAC,mBAAmB,EAAE,CAAA;QACvD,MAAM,WAAW,GAAG,IAAI,CAAC,IAAI,CAC3B,aAAa,EACb,KAAK,CAAC,gBAAgB,CAAC,iBAAiB,CAAC,CAC1C,CAAA;QAED,IAAI,CAAC,KAAK,CAAC,iBAAiB,WAAW,EAAE,CAAC,CAAA;QAE1C,MAAM,eAAS,CAAC,aAAa,EAAE,UAAU,EAAE,iBAAiB,CAAC,CAAA;QAC7D,IAAI,IAAI,CAAC,OAAO,EAAE,EAAE;YAClB,MAAM,aAAO,CAAC,WAAW,EAAE,iBAAiB,CAAC,CAAA;SAC9C;QAED,MAAM,aAAa,GAAG,CAAC,GAAG,IAAI,GAAG,IAAI,GAAG,IAAI,CAAA,CAAC,qBAAqB;QAClE,MAAM,eAAe,GAAG,KAAK,CAAC,yBAAyB,CAAC,WAAW,CAAC,CAAA;QACpE,IAAI,CAAC,KAAK,CAAC,cAAc,eAAe,EAAE,CAAC,CAAA;QAC3C,IAAI,eAAe,GAAG,aAAa,EAAE;YACnC,MAAM,IAAI,KAAK,CACb,kBAAkB,IAAI,CAAC,KAAK,CAC1B,eAAe,GAAG,CAAC,IAAI,GAAG,IAAI,CAAC,CAChC,QAAQ,eAAe,8CAA8C,CACvE,CAAA;SACF;QAED,IAAI,CAAC,KAAK,CAAC,qBAAqB,OAAO,GAAG,CAAC,CAAA;QAC3C,MAAM,eAAe,CAAC,SAAS,CAAC,OAAO,EAAE,WAAW,EAAE,OAAO,CAAC,CAAA;QAE9D,OAAO,OAAO,CAAA;IAChB,CAAC;CAAA;AArDD,8BAqDC"}
+\ No newline at end of file
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+\ No newline at end of file

src/build-scan-capture.ts

@@ -0,0 +1,50 @@
+import fs from 'fs'
+import path from 'path'
+import * as core from '@actions/core'
+
+export function writeInitScript(): string {
+    const tmpDir = process.env['RUNNER_TEMP'] || ''
+    const initScript = path.resolve(tmpDir, 'build-scan-capture.init.gradle')
+    core.info(`Writing init script: ${initScript}`)
+    if (fs.existsSync(initScript)) {
+        return initScript
+    }
+    fs.writeFileSync(
+        initScript,
+        `
+import org.gradle.util.GradleVersion
+
+// Don't run against the included builds (if the main build has any).
+def isTopLevelBuild = gradle.getParent() == null
+if (isTopLevelBuild) {
+    def version = GradleVersion.current().baseVersion
+    def atLeastGradle4 = version >= GradleVersion.version("4.0")
+    def atLeastGradle6 = version >= GradleVersion.version("6.0")
+
+    if (atLeastGradle6) {
+        settingsEvaluated { settings ->
+            if (settings.pluginManager.hasPlugin("com.gradle.enterprise")) {
+                registerCallbacks(settings.extensions["gradleEnterprise"].buildScan, settings.rootProject.name)
+            }
+        }
+    } else if (atLeastGradle4) {
+        projectsEvaluated { gradle ->
+            if (gradle.rootProject.pluginManager.hasPlugin("com.gradle.build-scan")) {
+                registerCallbacks(gradle.rootProject.extensions["buildScan"], gradle.rootProject.name)
+            }
+        }
+    }
+}
+
+def registerCallbacks(buildScanExtension, rootProjectName) {
+    buildScanExtension.with {
+        def scanFile = new File("gradle-build-scan.txt")
+        buildScanPublished { buildScan ->
+            scanFile.text = buildScan.buildScanUri
+        }
+    }
+}
+`
+    )
+    return initScript
+}

src/cache-base.ts

@@ -0,0 +1,244 @@
+import * as core from '@actions/core'
+import * as cache from '@actions/cache'
+import * as github from '@actions/github'
+import {isCacheDebuggingEnabled, getCacheKeyPrefix, hashStrings, handleCacheFailure} from './cache-utils'
+
+const JOB_CONTEXT_PARAMETER = 'workflow-job-context'
+
+function generateCacheKey(cacheName: string): CacheKey {
+    const cacheKeyPrefix = getCacheKeyPrefix()
+
+    // At the most general level, share caches for all executions on the same OS
+    const runnerOs = process.env['RUNNER_OS'] || ''
+    const cacheKeyForOs = `${cacheKeyPrefix}${cacheName}|${runnerOs}`
+
+    // Prefer caches that run this job
+    const cacheKeyForJob = `${cacheKeyForOs}|${github.context.job}`
+
+    // Prefer (even more) jobs that run this job with the same context (matrix)
+    const cacheKeyForJobContext = `${cacheKeyForJob}[${determineJobContext()}]`
+
+    // Exact match on Git SHA
+    const cacheKey = `${cacheKeyForJobContext}-${github.context.sha}`
+
+    return new CacheKey(cacheKey, [cacheKeyForJobContext, cacheKeyForJob, cacheKeyForOs])
+}
+
+function determineJobContext(): string {
+    // By default, we hash the full `matrix` data for the run, to uniquely identify this job invocation
+    const workflowJobContext = core.getInput(JOB_CONTEXT_PARAMETER)
+    return hashStrings([workflowJobContext])
+}
+
+class CacheKey {
+    key: string
+    restoreKeys: string[]
+
+    constructor(key: string, restoreKeys: string[]) {
+        this.key = key
+        this.restoreKeys = restoreKeys
+    }
+}
+
+export class CacheListener {
+    cacheEntries: CacheEntryListener[] = []
+
+    get fullyRestored(): boolean {
+        return this.cacheEntries.every(x => !x.wasRequestedButNotRestored())
+    }
+
+    entry(name: string): CacheEntryListener {
+        for (const entry of this.cacheEntries) {
+            if (entry.entryName === name) {
+                return entry
+            }
+        }
+
+        const newEntry = new CacheEntryListener(name)
+        this.cacheEntries.push(newEntry)
+        return newEntry
+    }
+
+    stringify(): string {
+        return JSON.stringify(this)
+    }
+
+    static rehydrate(stringRep: string): CacheListener {
+        const rehydrated: CacheListener = Object.assign(new CacheListener(), JSON.parse(stringRep))
+        const entries = rehydrated.cacheEntries
+        for (let index = 0; index < entries.length; index++) {
+            const rawEntry = entries[index]
+            entries[index] = Object.assign(new CacheEntryListener(rawEntry.entryName), rawEntry)
+        }
+        return rehydrated
+    }
+}
+
+export class CacheEntryListener {
+    entryName: string
+    requestedKey: string | undefined
+    requestedRestoreKeys: string[] | undefined
+    restoredKey: string | undefined
+    restoredSize: number | undefined
+
+    savedKey: string | undefined
+    savedSize: number | undefined
+
+    constructor(entryName: string) {
+        this.entryName = entryName
+    }
+
+    wasRequestedButNotRestored(): boolean {
+        return this.requestedKey !== undefined && this.restoredKey === undefined
+    }
+
+    markRequested(key: string, restoreKeys: string[] = []): CacheEntryListener {
+        this.requestedKey = key
+        this.requestedRestoreKeys = restoreKeys
+        return this
+    }
+
+    markRestored(key: string, size: number | undefined): CacheEntryListener {
+        this.restoredKey = key
+        this.restoredSize = size
+        return this
+    }
+
+    markSaved(key: string, size: number | undefined): CacheEntryListener {
+        this.savedKey = key
+        this.savedSize = size
+        return this
+    }
+}
+
+export abstract class AbstractCache {
+    private cacheName: string
+    private cacheDescription: string
+    private cacheKeyStateKey: string
+    private cacheResultStateKey: string
+
+    protected readonly cacheDebuggingEnabled: boolean
+
+    constructor(cacheName: string, cacheDescription: string) {
+        this.cacheName = cacheName
+        this.cacheDescription = cacheDescription
+        this.cacheKeyStateKey = `CACHE_KEY_${cacheName}`
+        this.cacheResultStateKey = `CACHE_RESULT_${cacheName}`
+        this.cacheDebuggingEnabled = isCacheDebuggingEnabled()
+    }
+
+    async restore(listener: CacheListener): Promise<void> {
+        if (this.cacheOutputExists()) {
+            core.info(`${this.cacheDescription} already exists. Not restoring from cache.`)
+            return
+        }
+
+        const cacheKey = this.prepareCacheKey()
+        const entryReport = listener.entry(this.cacheDescription)
+        entryReport.markRequested(cacheKey.key, cacheKey.restoreKeys)
+
+        this.debug(
+            `Requesting ${this.cacheDescription} with
+                key:${cacheKey.key}
+                restoreKeys:[${cacheKey.restoreKeys}]`
+        )
+
+        const cacheResult = await this.restoreCache(this.getCachePath(), cacheKey.key, cacheKey.restoreKeys)
+
+        if (!cacheResult) {
+            core.info(`${this.cacheDescription} cache not found. Will start with empty.`)
+            return
+        }
+
+        core.saveState(this.cacheResultStateKey, cacheResult.key)
+        entryReport.markRestored(cacheResult.key, cacheResult.size)
+        core.info(`Restored ${this.cacheDescription} from cache key: ${cacheResult.key}`)
+
+        try {
+            await this.afterRestore(listener)
+        } catch (error) {
+            core.warning(`Restore ${this.cacheDescription} failed in 'afterRestore': ${error}`)
+        }
+    }
+
+    prepareCacheKey(): CacheKey {
+        const cacheKey = generateCacheKey(this.cacheName)
+
+        core.saveState(this.cacheKeyStateKey, cacheKey.key)
+        return cacheKey
+    }
+
+    protected async restoreCache(
+        cachePath: string[],
+        cacheKey: string,
+        cacheRestoreKeys: string[] = []
+    ): Promise<cache.CacheEntry | undefined> {
+        try {
+            return await cache.restoreCache(cachePath, cacheKey, cacheRestoreKeys)
+        } catch (error) {
+            handleCacheFailure(error, `Failed to restore ${cacheKey}`)
+            return undefined
+        }
+    }
+
+    protected async afterRestore(_listener: CacheListener): Promise<void> {}
+
+    async save(listener: CacheListener): Promise<void> {
+        if (!this.cacheOutputExists()) {
+            core.info(`No ${this.cacheDescription} to cache.`)
+            return
+        }
+
+        const cacheKey = core.getState(this.cacheKeyStateKey)
+        const cacheResult = core.getState(this.cacheResultStateKey)
+
+        if (!cacheKey) {
+            core.info(`${this.cacheDescription} existed prior to cache restore. Not saving.`)
+            return
+        }
+
+        if (cacheResult && cacheKey === cacheResult) {
+            core.info(`Cache hit occurred on the cache key ${cacheKey}, not saving cache.`)
+            return
+        }
+
+        try {
+            await this.beforeSave(listener)
+        } catch (error) {
+            core.warning(`Save ${this.cacheDescription} failed in 'beforeSave': ${error}`)
+            return
+        }
+
+        core.info(`Caching ${this.cacheDescription} with cache key: ${cacheKey}`)
+        const cachePath = this.getCachePath()
+        const savedEntry = await this.saveCache(cachePath, cacheKey)
+
+        if (savedEntry) {
+            listener.entry(this.cacheDescription).markSaved(savedEntry.key, savedEntry.size)
+        }
+
+        return
+    }
+
+    protected async beforeSave(_listener: CacheListener): Promise<void> {}
+
+    protected async saveCache(cachePath: string[], cacheKey: string): Promise<cache.CacheEntry | undefined> {
+        try {
+            return await cache.saveCache(cachePath, cacheKey)
+        } catch (error) {
+            handleCacheFailure(error, `Failed to save cache entry ${cacheKey}`)
+        }
+        return undefined
+    }
+
+    protected debug(message: string): void {
+        if (this.cacheDebuggingEnabled) {
+            core.info(message)
+        } else {
+            core.debug(message)
+        }
+    }
+
+    protected abstract cacheOutputExists(): boolean
+    protected abstract getCachePath(): string[]
+}

src/cache-gradle-user-home.ts

@@ -5,35 +5,114 @@ import * as core from '@actions/core'
 import * as glob from '@actions/glob'
 import * as exec from '@actions/exec'
 
-import {AbstractCache, hashStrings} from './cache-utils'
+import {AbstractCache, CacheEntryListener, CacheListener} from './cache-base'
+import {getCacheKeyPrefix, hashFileNames, tryDelete} from './cache-utils'
 
-// Which paths under Gradle User Home should be cached
-// TODO: This should adapt for the `GRADLE_USER_HOME` environment variable
-// TODO: Allow the user to override / tweak this set
-const CACHE_PATH = ['~/.gradle/caches', '~/.gradle/notifications']
+const META_FILE_DIR = '.gradle-build-action'
 
-const COMMON_ARTIFACT_CACHES = new Map([
-    ['generated-gradle-jars', '~/.gradle/caches/*/generated-gradle-jars/*.jar'],
-    ['wrapper-zips', '~/.gradle/wrapper/dists/*/*/*.zip'],
-    ['dependency-jars', '~/.gradle/caches/modules-*/files-*/**/*.jar'],
-    ['instrumented-jars', '~/.gradle/caches/jars-*/*/*.jar']
-])
+const INCLUDE_PATHS_PARAMETER = 'gradle-home-cache-includes'
+const EXCLUDE_PATHS_PARAMETER = 'gradle-home-cache-excludes'
+const ARTIFACT_BUNDLES_PARAMETER = 'gradle-home-cache-artifact-bundles'
 
 export class GradleUserHomeCache extends AbstractCache {
-    constructor() {
+    private gradleUserHome: string
+
+    constructor(rootDir: string) {
         super('gradle', 'Gradle User Home')
+        this.gradleUserHome = this.determineGradleUserHome(rootDir)
     }
 
-    async afterRestore(): Promise<void> {
-        await this.reportCacheEntrySize('as restored from cache')
-        await this.restoreCommonArtifacts()
-        await this.reportCacheEntrySize('after restoring common artifacts')
+    async afterRestore(listener: CacheListener): Promise<void> {
+        await this.reportGradleUserHomeSize('as restored from cache')
+        await this.restoreArtifactBundles(listener)
+        await this.reportGradleUserHomeSize('after restoring common artifacts')
     }
 
-    private async restoreCommonArtifacts(): Promise<void> {
+    private async restoreArtifactBundles(listener: CacheListener): Promise<void> {
         const processes: Promise<void>[] = []
-        for (const [bundle, pattern] of COMMON_ARTIFACT_CACHES) {
-            const p = this.restoreCommonArtifactBundle(bundle, pattern)
+
+        const bundleMetaFiles = await this.getBundleMetaFiles()
+        const bundlePatterns = this.getArtifactBundles()
+
+        // Iterate over all bundle meta files and try to restore
+        for (const bundleMetaFile of bundleMetaFiles) {
+            const bundle = path.basename(bundleMetaFile, '.cache')
+            const entryListener = listener.entry(bundle)
+            const bundlePattern = bundlePatterns.get(bundle)
+
+            // Handle case where the 'artifactBundlePatterns' have been changed
+            if (bundlePattern === undefined) {
+                core.info(`Found bundle metafile for ${bundle} but no such bundle defined`)
+                entryListener.markRequested('BUNDLE_NOT_CONFIGURED')
+                tryDelete(bundleMetaFile)
+            } else {
+                const p = this.restoreArtifactBundle(bundle, bundlePattern, bundleMetaFile, entryListener)
+                // Run sequentially when debugging enabled
+                if (this.cacheDebuggingEnabled) {
+                    await p
+                }
+                processes.push(p)
+            }
+        }
+
+        await Promise.all(processes)
+    }
+
+    private async restoreArtifactBundle(
+        bundle: string,
+        bundlePattern: string,
+        bundleMetaFile: string,
+        listener: CacheEntryListener
+    ): Promise<void> {
+        const cacheKey = fs.readFileSync(bundleMetaFile, 'utf-8').trim()
+        listener.markRequested(cacheKey)
+
+        const restoredEntry = await this.restoreCache([bundlePattern], cacheKey)
+        if (restoredEntry) {
+            core.info(`Restored ${bundle} with key ${cacheKey} to ${bundlePattern}`)
+            listener.markRestored(restoredEntry.key, restoredEntry.size)
+        } else {
+            core.info(`Did not restore ${bundle} with key ${cacheKey} to ${bundlePattern}`)
+            tryDelete(bundleMetaFile)
+        }
+    }
+
+    private getBundleMetaFile(name: string): string {
+        return path.resolve(this.gradleUserHome, META_FILE_DIR, `${name}.cache`)
+    }
+
+    private async getBundleMetaFiles(): Promise<string[]> {
+        const metaFiles = path.resolve(this.gradleUserHome, META_FILE_DIR, '*.cache')
+        const globber = await glob.create(metaFiles)
+        const bundleFiles = await globber.glob()
+        return bundleFiles
+    }
+
+    async beforeSave(listener: CacheListener): Promise<void> {
+        await this.reportGradleUserHomeSize('before saving common artifacts')
+        this.removeExcludedPaths()
+        await this.saveArtifactBundles(listener)
+        await this.reportGradleUserHomeSize(
+            "after saving common artifacts (only 'caches' and 'notifications' will be stored)"
+        )
+    }
+
+    private removeExcludedPaths(): void {
+        const rawPaths: string[] = core.getMultilineInput(EXCLUDE_PATHS_PARAMETER)
+        const resolvedPaths = rawPaths.map(x => path.resolve(this.gradleUserHome, x))
+
+        for (const p of resolvedPaths) {
+            this.debug(`Deleting excluded path: ${p}`)
+            tryDelete(p)
+        }
+    }
+
+    private async saveArtifactBundles(listener: CacheListener): Promise<void> {
+        const processes: Promise<void>[] = []
+        for (const [bundle, pattern] of this.getArtifactBundles()) {
+            const entryListener = listener.entry(bundle)
+
+            const p = this.saveArtifactBundle(bundle, pattern, entryListener)
             // Run sequentially when debugging enabled
             if (this.cacheDebuggingEnabled) {
                 await p
@@ -44,57 +123,122 @@ export class GradleUserHomeCache extends AbstractCache {
         await Promise.all(processes)
     }
 
-    private async restoreCommonArtifactBundle(
+    private async saveArtifactBundle(
         bundle: string,
-        pattern: string
+        artifactPath: string,
+        listener: CacheEntryListener
     ): Promise<void> {
-        const cacheMetaFile = this.getCacheMetaFile(bundle)
-        if (fs.existsSync(cacheMetaFile)) {
-            const cacheKey = fs.readFileSync(cacheMetaFile, 'utf-8').trim()
-            const restoreKey = await this.restoreCache([pattern], cacheKey)
-            if (restoreKey) {
-                core.info(
-                    `Restored ${bundle} with key ${cacheKey} to ${pattern}`
-                )
-            } else {
-                this.debug(
-                    `Failed to restore ${bundle} with key ${cacheKey} to ${pattern}`
-                )
+        const bundleMetaFile = this.getBundleMetaFile(bundle)
+
+        const globber = await glob.create(artifactPath, {
+            implicitDescendants: false,
+            followSymbolicLinks: false
+        })
+        const bundleFiles = await globber.glob()
+
+        // Handle no matching files
+        if (bundleFiles.length === 0) {
+            this.debug(`No files found to cache for ${bundle}`)
+            if (fs.existsSync(bundleMetaFile)) {
+                tryDelete(bundleMetaFile)
             }
+            return
+        }
+
+        const previouslyRestoredKey = fs.existsSync(bundleMetaFile)
+            ? fs.readFileSync(bundleMetaFile, 'utf-8').trim()
+            : ''
+        const cacheKey = this.createCacheKey(bundle, bundleFiles)
+
+        if (previouslyRestoredKey === cacheKey) {
+            this.debug(`No change to previously restored ${bundle}. Not caching.`)
         } else {
-            this.debug(
-                `No metafile found to restore ${bundle}: ${cacheMetaFile}`
-            )
+            core.info(`Caching ${bundle} with cache key: ${cacheKey}`)
+            const savedEntry = await this.saveCache([artifactPath], cacheKey)
+            if (savedEntry !== undefined) {
+                this.writeBundleMetaFile(bundleMetaFile, cacheKey)
+                listener.markSaved(savedEntry.key, savedEntry.size)
+            }
+        }
+
+        for (const file of bundleFiles) {
+            tryDelete(file)
         }
     }
 
-    private getCacheMetaFile(name: string): string {
-        return path.resolve(
-            this.getGradleUserHome(),
-            'caches',
-            `.gradle-build-action.${name}.cache`
-        )
+    protected createCacheKey(bundle: string, files: string[]): string {
+        const cacheKeyPrefix = getCacheKeyPrefix()
+        const relativeFiles = files.map(x => path.relative(this.gradleUserHome, x))
+        const key = hashFileNames(relativeFiles)
+
+        this.debug(`Generating cache key for ${bundle} from files: ${relativeFiles}`)
+
+        return `${cacheKeyPrefix}${bundle}-${key}`
     }
 
-    private async reportCacheEntrySize(label: string): Promise<void> {
+    private writeBundleMetaFile(metaFile: string, cacheKey: string): void {
+        this.debug(`Writing bundle metafile: ${metaFile}`)
+
+        const dirName = path.dirname(metaFile)
+        if (!fs.existsSync(dirName)) {
+            fs.mkdirSync(dirName)
+        }
+
+        fs.writeFileSync(metaFile, cacheKey)
+    }
+
+    protected determineGradleUserHome(rootDir: string): string {
+        const customGradleUserHome = process.env['GRADLE_USER_HOME']
+        if (customGradleUserHome) {
+            return path.resolve(rootDir, customGradleUserHome)
+        }
+
+        return path.resolve(os.homedir(), '.gradle')
+    }
+
+    protected cacheOutputExists(): boolean {
+        // Need to check for 'caches' directory to avoid incorrect detection on MacOS agents
+        const dir = path.resolve(this.gradleUserHome, 'caches')
+        return fs.existsSync(dir)
+    }
+
+    protected getCachePath(): string[] {
+        const rawPaths: string[] = core.getMultilineInput(INCLUDE_PATHS_PARAMETER)
+        rawPaths.push(META_FILE_DIR)
+        const resolvedPaths = rawPaths.map(x => this.resolveCachePath(x))
+        this.debug(`Using cache paths: ${resolvedPaths}`)
+        return resolvedPaths
+    }
+
+    private resolveCachePath(rawPath: string): string {
+        if (rawPath.startsWith('!')) {
+            const resolved = this.resolveCachePath(rawPath.substring(1))
+            return `!${resolved}`
+        }
+        return path.resolve(this.gradleUserHome, rawPath)
+    }
+
+    private getArtifactBundles(): Map<string, string> {
+        const artifactBundleDefinition = core.getInput(ARTIFACT_BUNDLES_PARAMETER)
+        this.debug(`Using artifact bundle definition: ${artifactBundleDefinition}`)
+        const artifactBundles = JSON.parse(artifactBundleDefinition)
+        return new Map(Array.from(artifactBundles, ([key, value]) => [key, path.resolve(this.gradleUserHome, value)]))
+    }
+
+    private async reportGradleUserHomeSize(label: string): Promise<void> {
         if (!this.cacheDebuggingEnabled) {
             return
         }
-        const gradleUserHome = path.resolve(os.homedir(), '.gradle')
-        if (!fs.existsSync(gradleUserHome)) {
+        if (!fs.existsSync(this.gradleUserHome)) {
             return
         }
-        const result = await exec.getExecOutput(
-            'du',
-            ['-h', '-c', '-t', '5M'],
-            {
-                cwd: gradleUserHome,
-                silent: true,
-                ignoreReturnCode: true
-            }
-        )
+        const result = await exec.getExecOutput('du', ['-h', '-c', '-t', '5M'], {
+            cwd: this.gradleUserHome,
+            silent: true,
+            ignoreReturnCode: true
+        })
 
-        core.info(`Gradle User Home cache entry (directories >5M): ${label}`)
+        core.info(`Gradle User Home (directories >5M): ${label}`)
 
         core.info(
             result.stdout
@@ -109,84 +253,4 @@ export class GradleUserHomeCache extends AbstractCache {
 
         core.info('-----------------------')
     }
-
-    async beforeSave(): Promise<void> {
-        await this.saveCommonArtifacts()
-    }
-
-    private async saveCommonArtifacts(): Promise<void> {
-        const processes: Promise<void>[] = []
-        for (const [bundle, pattern] of COMMON_ARTIFACT_CACHES) {
-            const p = this.saveCommonArtifactBundle(bundle, pattern)
-            // Run sequentially when debugging enabled
-            if (this.cacheDebuggingEnabled) {
-                await p
-            }
-            processes.push(p)
-        }
-
-        await Promise.all(processes)
-    }
-
-    private async saveCommonArtifactBundle(
-        bundle: string,
-        pattern: string
-    ): Promise<void> {
-        const cacheMetaFile = this.getCacheMetaFile(bundle)
-
-        const globber = await glob.create(pattern)
-        const commonArtifactFiles = await globber.glob()
-
-        // Handle no matching files
-        if (commonArtifactFiles.length === 0) {
-            this.debug(`No files found to cache for ${bundle}`)
-            if (fs.existsSync(cacheMetaFile)) {
-                fs.unlinkSync(cacheMetaFile)
-            }
-            return
-        }
-
-        const previouslyRestoredKey = fs.existsSync(cacheMetaFile)
-            ? fs.readFileSync(cacheMetaFile, 'utf-8').trim()
-            : ''
-        const cacheKey = this.createCacheKey(
-            bundle,
-            hashStrings(commonArtifactFiles)
-        )
-
-        if (previouslyRestoredKey === cacheKey) {
-            this.debug(
-                `No change to previously restored ${bundle}. Not caching.`
-            )
-        } else {
-            core.info(`Caching ${bundle} with cache key: ${cacheKey}`)
-            await this.saveCache([pattern], cacheKey)
-
-            this.debug(`Writing cache metafile: ${cacheMetaFile}`)
-            fs.writeFileSync(cacheMetaFile, cacheKey)
-        }
-
-        for (const file of commonArtifactFiles) {
-            fs.unlinkSync(file)
-        }
-    }
-
-    protected createCacheKey(bundle: string, key: string): string {
-        const cacheKeyPrefix = process.env['CACHE_KEY_PREFIX'] || ''
-        return `${cacheKeyPrefix}${bundle}-${key}`
-    }
-
-    protected getGradleUserHome(): string {
-        return path.resolve(os.homedir(), '.gradle')
-    }
-
-    protected cacheOutputExists(): boolean {
-        // Need to check for 'caches' directory to avoid incorrect detection on MacOS agents
-        const dir = path.resolve(this.getGradleUserHome(), 'caches')
-        return fs.existsSync(dir)
-    }
-
-    protected getCachePath(): string[] {
-        return CACHE_PATH
-    }
 }

src/cache-project-dot-gradle.ts

@@ -1,6 +1,6 @@
 import path from 'path'
 import fs from 'fs'
-import {AbstractCache} from './cache-utils'
+import {AbstractCache} from './cache-base'
 
 // TODO: Maybe allow the user to override / tweak this set
 const PATHS_TO_CACHE = [
@@ -10,7 +10,7 @@ const PATHS_TO_CACHE = [
 export class ProjectDotGradleCache extends AbstractCache {
     private rootDir: string
     constructor(rootDir: string) {
-        super('project', 'Project .gradle directory')
+        super('project', 'Project configuration cache')
         this.rootDir = rootDir
     }
 

src/cache-utils.ts

@@ -1,48 +1,31 @@
 import * as core from '@actions/core'
 import * as cache from '@actions/cache'
-import * as github from '@actions/github'
 import * as crypto from 'crypto'
+import * as path from 'path'
+import * as fs from 'fs'
+
+const CACHE_PROTOCOL_VERSION = 'v4-'
+
+const CACHE_DISABLED_PARAMETER = 'cache-disabled'
+const CACHE_READONLY_PARAMETER = 'cache-read-only'
+const CACHE_DEBUG_VAR = 'GRADLE_BUILD_ACTION_CACHE_DEBUG_ENABLED'
+const CACHE_PREFIX_VAR = 'GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX'
 
 export function isCacheDisabled(): boolean {
-    return core.getBooleanInput('cache-disabled')
+    return core.getBooleanInput(CACHE_DISABLED_PARAMETER)
 }
 
 export function isCacheReadOnly(): boolean {
-    return core.getBooleanInput('cache-read-only')
+    return core.getBooleanInput(CACHE_READONLY_PARAMETER)
 }
 
 export function isCacheDebuggingEnabled(): boolean {
-    return process.env['CACHE_DEBUG_ENABLED'] ? true : false
+    return process.env[CACHE_DEBUG_VAR] ? true : false
 }
 
-function generateCacheKey(cacheName: string): CacheKey {
-    // Prefix can be used to force change all cache keys
-    const cacheKeyPrefix = process.env['CACHE_KEY_PREFIX'] || ''
-
-    // At the most general level, share caches for all executions on the same OS
-    const runnerOs = process.env['RUNNER_OS'] || ''
-    const cacheKeyForOs = `${cacheKeyPrefix}${cacheName}|${runnerOs}`
-
-    // Prefer caches that run this job
-    const cacheKeyForJob = `${cacheKeyForOs}|${github.context.job}`
-
-    // Prefer (even more) jobs that run this job with the same context (matrix)
-    const cacheKeyForJobContext = `${cacheKeyForJob}[${determineJobContext()}]`
-
-    // Exact match on Git SHA
-    const cacheKey = `${cacheKeyForJobContext}-${github.context.sha}`
-
-    return new CacheKey(cacheKey, [
-        cacheKeyForJobContext,
-        cacheKeyForJob,
-        cacheKeyForOs
-    ])
-}
-
-function determineJobContext(): string {
-    // By default, we hash the full `matrix` data for the run, to uniquely identify this job invocation
-    const workflowJobContext = core.getInput('workflow-job-context')
-    return hashStrings([workflowJobContext])
+export function getCacheKeyPrefix(): string {
+    // Prefix can be used to force change all cache keys (defaults to cache protocol version)
+    return process.env[CACHE_PREFIX_VAR] || CACHE_PROTOCOL_VERSION
 }
 
 export function hashStrings(values: string[]): string {
@@ -53,156 +36,52 @@ export function hashStrings(values: string[]): string {
     return hash.digest('hex')
 }
 
-class CacheKey {
-    key: string
-    restoreKeys: string[]
-
-    constructor(key: string, restoreKeys: string[]) {
-        this.key = key
-        this.restoreKeys = restoreKeys
-    }
+export function hashFileNames(fileNames: string[]): string {
+    return hashStrings(fileNames.map(x => x.replace(new RegExp(`\\${path.sep}`, 'g'), '/')))
 }
 
-export abstract class AbstractCache {
-    private cacheName: string
-    private cacheDescription: string
-    private cacheKeyStateKey: string
-    private cacheResultStateKey: string
-
-    protected readonly cacheDebuggingEnabled: boolean
-
-    constructor(cacheName: string, cacheDescription: string) {
-        this.cacheName = cacheName
-        this.cacheDescription = cacheDescription
-        this.cacheKeyStateKey = `CACHE_KEY_${cacheName}`
-        this.cacheResultStateKey = `CACHE_RESULT_${cacheName}`
-        this.cacheDebuggingEnabled = isCacheDebuggingEnabled()
+export function handleCacheFailure(error: unknown, message: string): void {
+    if (error instanceof cache.ValidationError) {
+        // Fail on cache validation errors
+        throw error
     }
-
-    async restore(): Promise<void> {
-        if (this.cacheOutputExists()) {
-            core.info(
-                `${this.cacheDescription} already exists. Not restoring from cache.`
-            )
-            return
-        }
-
-        const cacheKey = generateCacheKey(this.cacheName)
-
-        core.saveState(this.cacheKeyStateKey, cacheKey.key)
-
-        const cacheResult = await this.restoreCache(
-            this.getCachePath(),
-            cacheKey.key,
-            cacheKey.restoreKeys
-        )
-
-        if (!cacheResult) {
-            core.info(
-                `${this.cacheDescription} cache not found. Will start with empty.`
-            )
-            return
-        }
-
-        core.saveState(this.cacheResultStateKey, cacheResult)
-
-        core.info(
-            `Restored ${this.cacheDescription} from cache key: ${cacheResult}`
-        )
-
-        await this.afterRestore()
-
-        return
-    }
-
-    protected async restoreCache(
-        cachePath: string[],
-        cacheKey: string,
-        cacheRestoreKeys: string[] = []
-    ): Promise<string | undefined> {
-        try {
-            return await cache.restoreCache(
-                cachePath,
-                cacheKey,
-                cacheRestoreKeys
-            )
-        } catch (error) {
-            if (error instanceof cache.ValidationError) {
-                // Validation errors should fail the build action
-                throw error
-            }
-            // Warn about any other error and continue
-            core.warning(`Failed to restore ${cacheKey}: ${error}`)
-            return undefined
-        }
-    }
-
-    protected async afterRestore(): Promise<void> {}
-
-    async save(): Promise<void> {
-        if (!this.cacheOutputExists()) {
-            this.debug(`No ${this.cacheDescription} to cache.`)
-            return
-        }
-
-        const cacheKey = core.getState(this.cacheKeyStateKey)
-        const cacheResult = core.getState(this.cacheResultStateKey)
-
-        if (!cacheKey) {
-            this.debug(
-                `${this.cacheDescription} existed prior to cache restore. Not saving.`
-            )
-            return
-        }
-
-        if (cacheResult && cacheKey === cacheResult) {
-            core.info(
-                `Cache hit occurred on the cache key ${cacheKey}, not saving cache.`
-            )
-            return
-        }
-
-        await this.beforeSave()
-
-        core.info(
-            `Caching ${this.cacheDescription} with cache key: ${cacheKey}`
-        )
-        const cachePath = this.getCachePath()
-        await this.saveCache(cachePath, cacheKey)
-
-        return
-    }
-
-    protected async beforeSave(): Promise<void> {}
-
-    protected async saveCache(
-        cachePath: string[],
-        cacheKey: string
-    ): Promise<void> {
-        try {
-            await cache.saveCache(cachePath, cacheKey)
-        } catch (error) {
-            if (error instanceof cache.ValidationError) {
-                // Validation errors should fail the build action
-                throw error
-            } else if (error instanceof cache.ReserveCacheError) {
-                // Reserve cache errors are expected if the artifact has been previously cached
-                this.debug(error.message)
-            } else {
-                // Warn about any other error and continue
-                core.warning(String(error))
-            }
-        }
-    }
-
-    protected debug(message: string): void {
-        if (this.cacheDebuggingEnabled) {
+    if (error instanceof cache.ReserveCacheError) {
+        // Reserve cache errors are expected if the artifact has been previously cached
+        if (isCacheDebuggingEnabled()) {
             core.info(message)
         } else {
             core.debug(message)
         }
+    } else {
+        // Warn on all other errors
+        core.warning(`${message}: ${error}`)
     }
-
-    protected abstract cacheOutputExists(): boolean
-    protected abstract getCachePath(): string[]
+}
+
+/**
+ * Attempt to delete a file or directory, waiting to allow locks to be released
+ */
+export async function tryDelete(file: string): Promise<void> {
+    const stat = fs.lstatSync(file)
+    for (let count = 0; count < 3; count++) {
+        try {
+            if (stat.isDirectory()) {
+                fs.rmdirSync(file, {recursive: true})
+            } else {
+                fs.unlinkSync(file)
+            }
+            return
+        } catch (error) {
+            if (count === 2) {
+                throw error
+            } else {
+                core.warning(String(error))
+                await delay(1000)
+            }
+        }
+    }
+}
+
+async function delay(ms: number): Promise<void> {
+    return new Promise(resolve => setTimeout(resolve, ms))
 }

src/caches.ts

@@ -2,35 +2,97 @@ import {GradleUserHomeCache} from './cache-gradle-user-home'
 import {ProjectDotGradleCache} from './cache-project-dot-gradle'
 import * as core from '@actions/core'
 import {isCacheDisabled, isCacheReadOnly} from './cache-utils'
+import {CacheEntryListener, CacheListener} from './cache-base'
 
 const BUILD_ROOT_DIR = 'BUILD_ROOT_DIR'
+const CACHE_LISTENER = 'CACHE_LISTENER'
 
 export async function restore(buildRootDirectory: string): Promise<void> {
     if (isCacheDisabled()) {
-        core.debug('Cache read disabled')
+        core.info('Cache is disabled: will not restore state from previous builds.')
         return
     }
 
     await core.group('Restore Gradle state from cache', async () => {
         core.saveState(BUILD_ROOT_DIR, buildRootDirectory)
-        return Promise.all([
-            new GradleUserHomeCache().restore(),
-            new ProjectDotGradleCache(buildRootDirectory).restore()
-        ])
+
+        const cacheListener = new CacheListener()
+        await new GradleUserHomeCache(buildRootDirectory).restore(cacheListener)
+
+        const projectDotGradleCache = new ProjectDotGradleCache(buildRootDirectory)
+        if (cacheListener.fullyRestored) {
+            // Only restore the configuration-cache if the Gradle Home is fully restored
+            await projectDotGradleCache.restore(cacheListener)
+        } else {
+            // Otherwise, prepare the cache key for later save()
+            core.info('Gradle Home cache not fully restored: not restoring configuration-cache state')
+            projectDotGradleCache.prepareCacheKey()
+        }
+
+        core.saveState(CACHE_LISTENER, cacheListener.stringify())
     })
 }
 
 export async function save(): Promise<void> {
+    const cacheListener: CacheListener = CacheListener.rehydrate(core.getState(CACHE_LISTENER))
+
     if (isCacheReadOnly()) {
-        core.debug('Cache is read-only: not saving cache entry')
+        core.info('Cache is read-only: will not save state for use in subsequent builds.')
+        logCachingReport(cacheListener)
         return
     }
 
     await core.group('Caching Gradle state', async () => {
         const buildRootDirectory = core.getState(BUILD_ROOT_DIR)
         return Promise.all([
-            new GradleUserHomeCache().save(),
-            new ProjectDotGradleCache(buildRootDirectory).save()
+            new GradleUserHomeCache(buildRootDirectory).save(cacheListener),
+            new ProjectDotGradleCache(buildRootDirectory).save(cacheListener)
         ])
     })
+
+    logCachingReport(cacheListener)
+}
+
+function logCachingReport(listener: CacheListener): void {
+    if (listener.cacheEntries.length === 0) {
+        return
+    }
+
+    core.info(`---------- Caching Summary -------------
+Restored Entries Count: ${getCount(listener.cacheEntries, e => e.restoredSize)}
+                  Size: ${getSum(listener.cacheEntries, e => e.restoredSize)}
+Saved Entries    Count: ${getCount(listener.cacheEntries, e => e.savedSize)}
+                  Size: ${getSum(listener.cacheEntries, e => e.savedSize)}`)
+
+    core.startGroup('Cache Entry details')
+    for (const entry of listener.cacheEntries) {
+        core.info(`Entry: ${entry.entryName}
+    Requested Key : ${entry.requestedKey ?? ''}
+    Restored  Key : ${entry.restoredKey ?? ''}
+              Size: ${formatSize(entry.restoredSize)}
+    Saved     Key : ${entry.savedKey ?? ''}
+              Size: ${formatSize(entry.savedSize)}`)
+    }
+    core.endGroup()
+}
+
+function getCount(
+    cacheEntries: CacheEntryListener[],
+    predicate: (value: CacheEntryListener) => number | undefined
+): number {
+    return cacheEntries.filter(e => predicate(e) !== undefined).length
+}
+
+function getSum(
+    cacheEntries: CacheEntryListener[],
+    predicate: (value: CacheEntryListener) => number | undefined
+): string {
+    return formatSize(cacheEntries.map(e => predicate(e) ?? 0).reduce((p, v) => p + v, 0))
+}
+
+function formatSize(bytes: number | undefined): string {
+    if (bytes === undefined || bytes === 0) {
+        return ''
+    }
+    return `${Math.round(bytes / (1024 * 1024))} MB (${bytes} B)`
 }

src/execution.ts

@@ -1,29 +1,32 @@
 import * as exec from '@actions/exec'
+import fs from 'fs'
+import path from 'path'
+import {writeInitScript} from './build-scan-capture'
 
-export async function execute(
-    executable: string,
-    root: string,
-    argv: string[]
-): Promise<BuildResult> {
-    let publishing = false
+export async function execute(executable: string, root: string, args: string[]): Promise<BuildResult> {
     let buildScanUrl: string | undefined
 
-    const status: number = await exec.exec(executable, argv, {
+    // TODO: instead of running with no-daemon, run `--stop` in post action.
+    args.push('--no-daemon')
+
+    const initScript = writeInitScript()
+    args.push('--init-script')
+    args.push(initScript)
+
+    const buildScanFile = path.resolve(root, 'gradle-build-scan.txt')
+    if (fs.existsSync(buildScanFile)) {
+        fs.unlinkSync(buildScanFile)
+    }
+
+    const status: number = await exec.exec(executable, args, {
         cwd: root,
-        ignoreReturnCode: true,
-        listeners: {
-            stdline: (line: string) => {
-                if (line.includes('Publishing build scan...')) {
-                    publishing = true
-                }
-                if (publishing && line.startsWith('http')) {
-                    buildScanUrl = line.trim()
-                    publishing = false
-                }
-            }
-        }
+        ignoreReturnCode: true
     })
 
+    if (fs.existsSync(buildScanFile)) {
+        buildScanUrl = fs.readFileSync(buildScanFile, 'utf-8')
+    }
+
     return new BuildResultImpl(status, buildScanUrl)
 }
 

src/gradlew.ts

@@ -17,10 +17,7 @@ export function locateGradleWrapperScript(buildRootDirectory: string): string {
 }
 
 function validateGradleWrapper(buildRootDirectory: string): void {
-    const wrapperProperties = path.resolve(
-        buildRootDirectory,
-        'gradle/wrapper/gradle-wrapper.properties'
-    )
+    const wrapperProperties = path.resolve(buildRootDirectory, 'gradle/wrapper/gradle-wrapper.properties')
     if (!fs.existsSync(wrapperProperties)) {
         throw new Error(
             `Cannot locate a Gradle wrapper properties file at '${wrapperProperties}'. Specify 'gradle-version' or 'gradle-executable' for projects without Gradle wrapper configured.`

src/main.ts

@@ -16,27 +16,27 @@ export async function run(): Promise<void> {
         await caches.restore(buildRootDirectory)
 
         const args: string[] = parseCommandLineArguments()
-        // TODO: instead of running with no-daemon, run `--stop` in post action.
-        args.push('--no-daemon')
 
         const result = await execution.execute(
-            await resolveGradleExecutable(
-                workspaceDirectory,
-                buildRootDirectory
-            ),
+            await resolveGradleExecutable(workspaceDirectory, buildRootDirectory),
             buildRootDirectory,
             args
         )
 
         if (result.buildScanUrl) {
             core.setOutput('build-scan-url', result.buildScanUrl)
-            // TODO Include context about the invocation (eg step name) in this message
-            // Unfortunately it doesn't seem possible to access the current step name here
-            core.notice(`Gradle build scan: ${result.buildScanUrl}`)
         }
 
         if (result.status !== 0) {
-            core.setFailed(`Gradle process exited with status ${result.status}`)
+            if (result.buildScanUrl) {
+                core.setFailed(`Gradle build failed: ${result.buildScanUrl}`)
+            } else {
+                core.setFailed(`Gradle build failed: process exited with status ${result.status}`)
+            }
+        } else {
+            if (result.buildScanUrl) {
+                core.notice(`Gradle build succeeded: ${result.buildScanUrl}`)
+            }
         }
     } catch (error) {
         core.setFailed(String(error))
@@ -48,10 +48,7 @@ export async function run(): Promise<void> {
 
 run()
 
-async function resolveGradleExecutable(
-    workspaceDirectory: string,
-    buildRootDirectory: string
-): Promise<string> {
+async function resolveGradleExecutable(workspaceDirectory: string, buildRootDirectory: string): Promise<string> {
     const gradleVersion = core.getInput('gradle-version')
     if (gradleVersion !== '' && gradleVersion !== 'wrapper') {
         return path.resolve(await provision.gradleVersion(gradleVersion))
@@ -68,9 +65,7 @@ async function resolveGradleExecutable(
 function resolveBuildRootDirectory(baseDirectory: string): string {
     const buildRootDirectory = core.getInput('build-root-directory')
     const resolvedBuildRootDirectory =
-        buildRootDirectory === ''
-            ? path.resolve(baseDirectory)
-            : path.resolve(baseDirectory, buildRootDirectory)
+        buildRootDirectory === '' ? path.resolve(baseDirectory) : path.resolve(baseDirectory, buildRootDirectory)
     return resolvedBuildRootDirectory
 }
 

src/provision.ts

@@ -7,7 +7,7 @@ import * as cache from '@actions/cache'
 import * as toolCache from '@actions/tool-cache'
 
 import * as gradlew from './gradlew'
-import {isCacheDisabled, isCacheReadOnly} from './cache-utils'
+import {handleCacheFailure, isCacheDisabled, isCacheReadOnly} from './cache-utils'
 
 const gradleVersionsBaseUrl = 'https://services.gradle.org/versions'
 
@@ -19,9 +19,7 @@ export async function gradleVersion(version: string): Promise<string> {
         case 'current':
             return gradleCurrent()
         case 'rc':
-            core.warning(
-                `Specifying gradle-version 'rc' has been deprecated. Use 'release-candidate' instead.`
-            )
+            core.warning(`Specifying gradle-version 'rc' has been deprecated. Use 'release-candidate' instead.`)
             return gradleReleaseCandidate()
         case 'release-candidate':
             return gradleReleaseCandidate()
@@ -35,16 +33,12 @@ export async function gradleVersion(version: string): Promise<string> {
 }
 
 async function gradleCurrent(): Promise<string> {
-    const versionInfo = await gradleVersionDeclaration(
-        `${gradleVersionsBaseUrl}/current`
-    )
+    const versionInfo = await gradleVersionDeclaration(`${gradleVersionsBaseUrl}/current`)
     return provisionGradle(versionInfo)
 }
 
 async function gradleReleaseCandidate(): Promise<string> {
-    const versionInfo = await gradleVersionDeclaration(
-        `${gradleVersionsBaseUrl}/release-candidate`
-    )
+    const versionInfo = await gradleVersionDeclaration(`${gradleVersionsBaseUrl}/release-candidate`)
     if (versionInfo && versionInfo.version && versionInfo.downloadUrl) {
         return provisionGradle(versionInfo)
     }
@@ -53,16 +47,12 @@ async function gradleReleaseCandidate(): Promise<string> {
 }
 
 async function gradleNightly(): Promise<string> {
-    const versionInfo = await gradleVersionDeclaration(
-        `${gradleVersionsBaseUrl}/nightly`
-    )
+    const versionInfo = await gradleVersionDeclaration(`${gradleVersionsBaseUrl}/nightly`)
     return provisionGradle(versionInfo)
 }
 
 async function gradleReleaseNightly(): Promise<string> {
-    const versionInfo = await gradleVersionDeclaration(
-        `${gradleVersionsBaseUrl}/release-nightly`
-    )
+    const versionInfo = await gradleVersionDeclaration(`${gradleVersionsBaseUrl}/release-nightly`)
     return provisionGradle(versionInfo)
 }
 
@@ -74,34 +64,24 @@ async function gradle(version: string): Promise<string> {
     return provisionGradle(versionInfo)
 }
 
-async function gradleVersionDeclaration(
-    url: string
-): Promise<GradleVersionInfo> {
+async function gradleVersionDeclaration(url: string): Promise<GradleVersionInfo> {
     return await httpGetGradleVersion(url)
 }
 
-async function findGradleVersionDeclaration(
-    version: string
-): Promise<GradleVersionInfo | undefined> {
-    const gradleVersions = await httpGetGradleVersions(
-        `${gradleVersionsBaseUrl}/all`
-    )
+async function findGradleVersionDeclaration(version: string): Promise<GradleVersionInfo | undefined> {
+    const gradleVersions = await httpGetGradleVersions(`${gradleVersionsBaseUrl}/all`)
     return gradleVersions.find((entry: GradleVersionInfo) => {
         return entry.version === version
     })
 }
 
-async function provisionGradle(
-    versionInfo: GradleVersionInfo
-): Promise<string> {
+async function provisionGradle(versionInfo: GradleVersionInfo): Promise<string> {
     return core.group(`Provision Gradle ${versionInfo.version}`, async () => {
         return locateGradleAndDownloadIfRequired(versionInfo)
     })
 }
 
-async function locateGradleAndDownloadIfRequired(
-    versionInfo: GradleVersionInfo
-): Promise<string> {
+async function locateGradleAndDownloadIfRequired(versionInfo: GradleVersionInfo): Promise<string> {
     const installsDir = path.join(os.homedir(), 'gradle-installations/installs')
     const installDir = path.join(installsDir, `gradle-${versionInfo.version}`)
     if (fs.existsSync(installDir)) {
@@ -120,13 +100,8 @@ async function locateGradleAndDownloadIfRequired(
     return executable
 }
 
-async function downloadAndCacheGradleDistribution(
-    versionInfo: GradleVersionInfo
-): Promise<string> {
-    const downloadPath = path.join(
-        os.homedir(),
-        `gradle-installations/downloads/gradle-${versionInfo.version}-bin.zip`
-    )
+async function downloadAndCacheGradleDistribution(versionInfo: GradleVersionInfo): Promise<string> {
+    const downloadPath = path.join(os.homedir(), `gradle-installations/downloads/gradle-${versionInfo.version}-bin.zip`)
 
     if (isCacheDisabled()) {
         await downloadGradleDistribution(versionInfo, downloadPath)
@@ -134,45 +109,32 @@ async function downloadAndCacheGradleDistribution(
     }
 
     const cacheKey = `gradle-${versionInfo.version}`
-    const restoreKey = await cache.restoreCache([downloadPath], cacheKey)
-    if (restoreKey) {
-        core.info(
-            `Restored Gradle distribution ${cacheKey} from cache to ${downloadPath}`
-        )
-        return downloadPath
+    try {
+        const restoreKey = await cache.restoreCache([downloadPath], cacheKey)
+        if (restoreKey) {
+            core.info(`Restored Gradle distribution ${cacheKey} from cache to ${downloadPath}`)
+            return downloadPath
+        }
+    } catch (error) {
+        handleCacheFailure(error, `Restore Gradle distribution ${versionInfo.version} failed`)
     }
-    core.info(
-        `Gradle distribution ${versionInfo.version} not found in cache. Will download.`
-    )
+
+    core.info(`Gradle distribution ${versionInfo.version} not found in cache. Will download.`)
     await downloadGradleDistribution(versionInfo, downloadPath)
 
     if (!isCacheReadOnly()) {
         try {
             await cache.saveCache([downloadPath], cacheKey)
         } catch (error) {
-            // Fail on validation errors or non-errors (the latter to keep Typescript happy)
-            if (
-                error instanceof cache.ValidationError ||
-                !(error instanceof Error)
-            ) {
-                throw error
-            }
-            core.warning(error.message)
+            handleCacheFailure(error, `Save Gradle distribution ${versionInfo.version} failed`)
         }
     }
     return downloadPath
 }
 
-async function downloadGradleDistribution(
-    versionInfo: GradleVersionInfo,
-    downloadPath: string
-): Promise<void> {
+async function downloadGradleDistribution(versionInfo: GradleVersionInfo, downloadPath: string): Promise<void> {
     await toolCache.downloadTool(versionInfo.downloadUrl, downloadPath)
-    core.info(
-        `Downloaded ${versionInfo.downloadUrl} to ${downloadPath} (size ${
-            fs.statSync(downloadPath).size
-        })`
-    )
+    core.info(`Downloaded ${versionInfo.downloadUrl} to ${downloadPath} (size ${fs.statSync(downloadPath).size})`)
 }
 
 function executableFrom(installDir: string): string {
@@ -183,9 +145,7 @@ async function httpGetGradleVersion(url: string): Promise<GradleVersionInfo> {
     return JSON.parse(await httpGetString(url))
 }
 
-async function httpGetGradleVersions(
-    url: string
-): Promise<GradleVersionInfo[]> {
+async function httpGetGradleVersions(url: string): Promise<GradleVersionInfo[]> {
     return JSON.parse(await httpGetString(url))
 }