Fix legacy caching module distribution for CI

The legacy caching bundle at sources/legacy-caching/dist/ was
gitignored by sources/.gitignore, so CI never included it. Fix by:
- Copying the bundle into sources/dist/legacy-caching/ during build
- Updating the loader path to resolve from dist/legacy-caching/
- Adding legacy module build steps to build-dist action and
  ci-update-dist workflow

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.github/actions/build-dist/action.yml

@@ -8,6 +8,13 @@ runs:
         node-version: 24
         cache: npm
         cache-dependency-path: sources/package-lock.json
+    - name: Build legacy caching module
+      shell: bash
+      run: |
+        npm install
+        npm run build
+      working-directory: sources/legacy-caching
+
     - name: Build distribution
       shell: bash
       run: |
@@ -20,6 +27,8 @@ runs:
     - name: Copy the generated sources/dist directory to the top-level dist
       shell: bash
       run: |
+        mkdir -p sources/dist/legacy-caching
+        cp sources/legacy-caching/dist/index.js sources/dist/legacy-caching/
         cp -r sources/dist .
 
     - name: Upload distribution

.github/workflows/ci-update-dist.yml

@@ -38,6 +38,12 @@ jobs:
       run: |
         npm exec -y -- pacote extract @gradle-tech/develocity-agent@3.0.1 ~/.node_libraries/@gradle-tech/develocity-agent
 
+    - name: Build legacy caching module
+      run: |
+        npm clean-install
+        npm run build
+      working-directory: sources/legacy-caching
+
     - name: Install npm dependencies
       run: |
         npm clean-install
@@ -58,6 +64,8 @@ jobs:
 
     - name: Copy the generated sources/dist directory to the top-level dist
       run: |
+        mkdir -p sources/dist/legacy-caching
+        cp sources/legacy-caching/dist/index.js sources/dist/legacy-caching/
         cp -r sources/dist .
 
     - name: Import GPG key to sign commits

build

@@ -6,6 +6,9 @@ build_legacy_caching() {
     npm clean-install
     npm run build
     cd ../..
+    # Copy legacy caching bundle into sources/dist so the CI bot picks it up
+    mkdir -p sources/dist/legacy-caching
+    cp sources/legacy-caching/dist/index.js sources/dist/legacy-caching/
 }
 
 cd sources

sources/legacy-caching/src/gradle-utils.ts

@@ -90,16 +90,6 @@ export function findGradleExecutableForCleanup(buildResults: BuildResults): stri
         }
     }
 
-    // Try the Gradle installation directory as a fallback
-    for (const result of buildResults.results) {
-        if (versionIsAtLeast(result.gradleVersion, '8.11')) {
-            const executable = path.resolve(result.gradleHomeDir, 'bin', IS_WINDOWS ? 'gradle.bat' : 'gradle')
-            if (fs.existsSync(executable)) {
-                return executable
-            }
-        }
-    }
-
     core.info('Could not locate a Gradle >= 8.11 executable for cache cleanup.')
     return null
 }

sources/src/cache-service-loader.ts

@@ -75,7 +75,7 @@ export async function loadVendoredCacheService(): Promise<CacheService> {
 }
 
 export async function loadLegacyCacheService(): Promise<CacheService> {
-    const legacyLibraryPath = findLibraryPath('sources/legacy-caching/dist/index.js')
+    const legacyLibraryPath = findLibraryPath('dist/legacy-caching/index.js')
     const moduleUrl = pathToFileURL(legacyLibraryPath).href
     return (await import(moduleUrl)) as CacheService
 }