Use java to determine user.home dir

.github/workflows/ci-full-check.yml

@@ -48,6 +48,11 @@ jobs:
     with:
       cache-key-prefix: ${{github.run_number}}-
 
+  restore-containerized-gradle-home:
+    uses: ./.github/workflows/integ-test-restore-containerized-gradle-home.yml
+    with:
+      cache-key-prefix: ${{github.run_number}}-
+
   restore-gradle-home:
     uses: ./.github/workflows/integ-test-restore-gradle-home.yml
     with:

.github/workflows/ci-quick-check.yml

@@ -55,11 +55,16 @@ jobs:
       runner-os: '["ubuntu-latest"]'
       download-dist: true
 
+  restore-containerized-gradle-home:
+    needs: build-distribution
+    uses: ./.github/workflows/integ-test-restore-containerized-gradle-home.yml
+    with:
+      download-dist: true
+
   restore-custom-gradle-home:
     needs: build-distribution
     uses: ./.github/workflows/integ-test-restore-custom-gradle-home.yml
     with:
-      runner-os: '["ubuntu-latest"]'
       download-dist: true
 
   restore-gradle-home:

.github/workflows/integ-test-restore-containerized-gradle-home.yml

@@ -0,0 +1,60 @@
+name: Test restore custom Gradle Home
+
+on:
+  workflow_call:
+    inputs:
+      cache-key-prefix:
+        type: string
+      download-dist:
+        type: boolean
+        default: false
+
+env:
+  DOWNLOAD_DIST: ${{ inputs.download-dist }}
+  GRADLE_BUILD_ACTION_CACHE_KEY_PREFIX: restore-custom-gradle-home-${{ inputs.cache-key-prefix }}
+  GRADLE_BUILD_ACTION_CACHE_DEBUG_ENABLED: true
+
+jobs:
+  seed-build:
+    runs-on: ubuntu-latest
+    container: fedora:latest
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v3
+    - name: Download distribution if required
+      uses: ./.github/actions/download-dist
+    - name: Setup Java
+      uses: actions/setup-java@v3
+      with:
+        java-version: 11
+        distribution: temurin
+    - name: Setup Gradle
+      uses: ./
+      with:
+        cache-read-only: false # For testing, allow writing cache entries on non-default branches
+    - name: Build using Gradle wrapper
+      working-directory: .github/workflow-samples/groovy-dsl
+      run: ./gradlew test
+
+  # Test that the gradle-user-home cache will cache dependencies, by running build with --offline
+  dependencies-cache:
+    needs: seed-build
+    runs-on: ubuntu-latest
+    container: fedora:latest
+    steps:
+    - name: Checkout sources
+      uses: actions/checkout@v3
+    - name: Download distribution if required
+      uses: ./.github/actions/download-dist
+    - name: Setup Java
+      uses: actions/setup-java@v3
+      with:
+        java-version: 11
+        distribution: temurin
+    - name: Setup Gradle
+      uses: ./
+      with:
+        cache-read-only: true
+    - name: Execute Gradle build with --offline
+      working-directory: .github/workflow-samples/groovy-dsl
+      run: ./gradlew test --offline

.github/workflows/integ-test-restore-custom-gradle-home.yml

@@ -5,9 +5,6 @@ on:
     inputs:
       cache-key-prefix:
         type: string
-      runner-os:
-        type: string
-        default: '["ubuntu-latest", "windows-latest", "macos-latest"]'
       download-dist:
         type: boolean
         default: false
@@ -19,10 +16,7 @@ env:
 
 jobs:
   seed-build:
-    strategy:
-      matrix:
-        os: ${{fromJSON(inputs.runner-os)}}
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     steps:
     - name: Set Gradle User Home
       run: |
@@ -43,10 +37,7 @@ jobs:
   # Test that the gradle-user-home cache will cache dependencies, by running build with --offline
   dependencies-cache:
     needs: seed-build
-    strategy:
-      matrix:
-        os: ${{fromJSON(inputs.runner-os)}}
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     steps:
     - name: Set Gradle User Home
       run: |
@@ -67,10 +58,7 @@ jobs:
   # Test that the gradle-user-home cache will cache and restore local build-cache
   build-cache:
     needs: seed-build
-    strategy:
-      matrix:
-        os: ${{fromJSON(inputs.runner-os)}}
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     steps:
     - name: Set Gradle User Home
       run: |

dist/main/index.js

@@ -66383,7 +66383,7 @@ const GRADLE_USER_HOME = 'GRADLE_USER_HOME';
 const CACHE_LISTENER = 'CACHE_LISTENER';
 function setup(buildRootDirectory) {
     return __awaiter(this, void 0, void 0, function* () {
-        const gradleUserHome = determineGradleUserHome(buildRootDirectory);
+        const gradleUserHome = yield determineGradleUserHome(buildRootDirectory);
         if (process.env[GRADLE_SETUP_VAR]) {
             core.info('Gradle setup only performed on first gradle-build-action step in workflow.');
             return;
@@ -66416,11 +66416,27 @@ function complete() {
 }
 exports.complete = complete;
 function determineGradleUserHome(rootDir) {
-    const customGradleUserHome = process.env['GRADLE_USER_HOME'];
-    if (customGradleUserHome) {
-        return path.resolve(rootDir, customGradleUserHome);
-    }
-    return path.resolve(os.homedir(), '.gradle');
+    return __awaiter(this, void 0, void 0, function* () {
+        const customGradleUserHome = process.env['GRADLE_USER_HOME'];
+        if (customGradleUserHome) {
+            return path.resolve(rootDir, customGradleUserHome);
+        }
+        return path.resolve(yield determineUserHome(), '.gradle');
+    });
+}
+function determineUserHome() {
+    return __awaiter(this, void 0, void 0, function* () {
+        const output = yield exec.getExecOutput('java', ['-XshowSettings:properties', '-version'], { silent: true });
+        const regex = /user\.home = (\S*)/i;
+        const found = output.stderr.match(regex);
+        if (found == null || found.length <= 1) {
+            core.info('Could not determine user.home from java -version output. Using os.homedir().');
+            return os.homedir();
+        }
+        const userHome = found[1];
+        core.debug(`Determined user.home from java -version output: '${userHome}'`);
+        return userHome;
+    });
 }
 function getUniqueGradleHomes(buildResults) {
     const gradleHomes = buildResults.map(buildResult => buildResult.gradleHomeDir);

dist/post/index.js

@@ -65067,7 +65067,7 @@ const GRADLE_USER_HOME = 'GRADLE_USER_HOME';
 const CACHE_LISTENER = 'CACHE_LISTENER';
 function setup(buildRootDirectory) {
     return __awaiter(this, void 0, void 0, function* () {
-        const gradleUserHome = determineGradleUserHome(buildRootDirectory);
+        const gradleUserHome = yield determineGradleUserHome(buildRootDirectory);
         if (process.env[GRADLE_SETUP_VAR]) {
             core.info('Gradle setup only performed on first gradle-build-action step in workflow.');
             return;
@@ -65100,11 +65100,27 @@ function complete() {
 }
 exports.complete = complete;
 function determineGradleUserHome(rootDir) {
-    const customGradleUserHome = process.env['GRADLE_USER_HOME'];
-    if (customGradleUserHome) {
-        return path.resolve(rootDir, customGradleUserHome);
-    }
-    return path.resolve(os.homedir(), '.gradle');
+    return __awaiter(this, void 0, void 0, function* () {
+        const customGradleUserHome = process.env['GRADLE_USER_HOME'];
+        if (customGradleUserHome) {
+            return path.resolve(rootDir, customGradleUserHome);
+        }
+        return path.resolve(yield determineUserHome(), '.gradle');
+    });
+}
+function determineUserHome() {
+    return __awaiter(this, void 0, void 0, function* () {
+        const output = yield exec.getExecOutput('java', ['-XshowSettings:properties', '-version'], { silent: true });
+        const regex = /user\.home = (\S*)/i;
+        const found = output.stderr.match(regex);
+        if (found == null || found.length <= 1) {
+            core.info('Could not determine user.home from java -version output. Using os.homedir().');
+            return os.homedir();
+        }
+        const userHome = found[1];
+        core.debug(`Determined user.home from java -version output: '${userHome}'`);
+        return userHome;
+    });
 }
 function getUniqueGradleHomes(buildResults) {
     const gradleHomes = buildResults.map(buildResult => buildResult.gradleHomeDir);

src/setup-gradle.ts

@@ -13,7 +13,7 @@ const GRADLE_USER_HOME = 'GRADLE_USER_HOME'
 const CACHE_LISTENER = 'CACHE_LISTENER'
 
 export async function setup(buildRootDirectory: string): Promise<void> {
-    const gradleUserHome = determineGradleUserHome(buildRootDirectory)
+    const gradleUserHome = await determineGradleUserHome(buildRootDirectory)
 
     // Bypass setup on all but first action step in workflow.
     if (process.env[GRADLE_SETUP_VAR]) {
@@ -55,13 +55,30 @@ export async function complete(): Promise<void> {
     writeJobSummary(buildResults, cacheListener)
 }
 
-function determineGradleUserHome(rootDir: string): string {
+async function determineGradleUserHome(rootDir: string): Promise<string> {
     const customGradleUserHome = process.env['GRADLE_USER_HOME']
     if (customGradleUserHome) {
         return path.resolve(rootDir, customGradleUserHome)
     }
 
-    return path.resolve(os.homedir(), '.gradle')
+    return path.resolve(await determineUserHome(), '.gradle')
+}
+
+/**
+ * Different values can be returned by os.homedir() in Javascript and System.getProperty('user.home') in Java.
+ * In order to determine the correct Gradle User Home, we ask Java for the user home instead of using os.homedir().
+ */
+async function determineUserHome(): Promise<string> {
+    const output = await exec.getExecOutput('java', ['-XshowSettings:properties', '-version'], {silent: true})
+    const regex = /user\.home = (\S*)/i
+    const found = output.stderr.match(regex)
+    if (found == null || found.length <= 1) {
+        core.info('Could not determine user.home from java -version output. Using os.homedir().')
+        return os.homedir()
+    }
+    const userHome = found[1]
+    core.debug(`Determined user.home from java -version output: '${userHome}'`)
+    return userHome
 }
 
 function getUniqueGradleHomes(buildResults: BuildResult[]): string[] {