Merge pull request #109 from gradle/dd/rc21

Fix issues for 2.0-rc.2
- Support multi-line strings for cache-tuning parameters #106 
- Include all downloaded files in `dependencies` bundle #100 
- Only restore configuration-cache if Gradle User Home is fully restored #107

.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/integTest-caching-config.yml

@@ -28,13 +28,15 @@ jobs:
         # 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"]
+            caches
+            notifications
+            wrapper
         gradle-home-cache-excludes: |
-            ["caches/build-cache-1"]
+            caches/build-cache-1
         gradle-home-cache-artifact-bundles: |
             [
               ["generated-gradle-jars", "caches/*/generated-gradle-jars/*.jar"],
-              ["dependency-jars", "caches/modules-*/files-*/**/*.jar"],
+              ["dependencies", "caches/modules-*/files-*/*/*/*/*/"],
               ["instrumented-jars", "caches/jars-*/*/"],
               ["kotlin-dsl", "caches/*/kotlin-dsl/*/*/"]
             ]
@@ -57,13 +59,15 @@ jobs:
         cache-read-only: true
         # Need the same configuration when restoring state from cache
         gradle-home-cache-includes: |
-            ["caches", "notifications", "wrapper"]
+            caches
+            notifications
+            wrapper
         gradle-home-cache-excludes: |
-            ["caches/build-cache-1"]
+            caches/build-cache-1
         gradle-home-cache-artifact-bundles: |
             [
               ["generated-gradle-jars", "caches/*/generated-gradle-jars/*.jar"],
-              ["dependency-jars", "caches/modules-*/files-*/**/*.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

@@ -1,4 +1,4 @@
-name: Test caching
+name: Test save/restore Gradle Home directory
 
 on:
   pull_request:
@@ -24,11 +24,6 @@ jobs:
       with:
         build-root-directory: __tests__/samples/groovy-dsl
         arguments: test
-    - name: Build with configuration-cache enabled
-      uses: ./
-      with:
-        build-root-directory: __tests__/samples/groovy-dsl
-        arguments: test --configuration-cache
 
   # Test that the gradle-user-home cache will cache dependencies, by running build with --offline
   dependencies-cache:
@@ -64,25 +59,6 @@ jobs:
         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, 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

.prettierrc.json

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

README.md

@@ -191,10 +191,12 @@ The contents to be cached can be fine tuned by including and excluding certain p
 ```yaml
 # Cache downloaded JDKs in addition to the default directories.
 gradle-home-cache-includes: |
-    ["caches", "notifications", "jdks"]
+    caches
+    notifications
+    jdks
 # Exclude the local build-cache from the directories cached.
 gradle-home-cache-excludes: |
-    ["caches/build-cache-1"]
+    caches/build-cache-1
 ```
 
 You can specify any number of fixed paths or patterns to include or exclude. 

action.yml

@@ -36,13 +36,13 @@ inputs:
     description: Paths within Gradle User Home to cache.
     required: false
     default: |
-        ["caches", "notifications"]
+        caches
+        notifications
 
   gradle-home-cache-excludes:
     description: Paths within Gradle User Home to exclude from cache.
     required: false
-    default: |
-        [] 
+  
   # e.g. Use the following setting to prevent the local build cache from being saved/restored
   #      gradle-home-cache-excludes: |
   #           ["caches/build-cache-1"]
@@ -62,7 +62,7 @@ inputs:
         [
           ["generated-gradle-jars", "caches/*/generated-gradle-jars/*.jar"],
           ["wrapper-zips", "wrapper/dists/*/*/*.zip"],
-          ["dependency-jars", "caches/modules-*/files-*/**/*.jar"],
+          ["dependencies", "caches/modules-*/files-*/*/*/*/*/"],
           ["instrumented-jars", "caches/jars-*/*/"],
           ["kotlin-dsl", "caches/*/kotlin-dsl/*/*/"]
         ]

src/cache-gradle-user-home.ts

@@ -7,6 +7,8 @@ import * as exec from '@actions/exec'
 
 import {
     AbstractCache,
+    CacheEntryReport,
+    CachingReport,
     getCacheKeyPrefix,
     hashFileNames,
     tryDelete
@@ -26,21 +28,38 @@ export class GradleUserHomeCache extends AbstractCache {
         this.gradleUserHome = this.determineGradleUserHome(rootDir)
     }
 
-    async afterRestore(): Promise<void> {
+    async afterRestore(report: CachingReport): Promise<void> {
         await this.reportGradleUserHomeSize('as restored from cache')
-        await this.restoreArtifactBundles()
+        await this.restoreArtifactBundles(report)
         await this.reportGradleUserHomeSize('after restoring common artifacts')
     }
 
-    private async restoreArtifactBundles(): Promise<void> {
+    private async restoreArtifactBundles(report: CachingReport): Promise<void> {
         const processes: Promise<void>[] = []
-        for (const [bundle, pattern] of this.getArtifactBundles()) {
-            const p = this.restoreArtifactBundle(bundle, pattern)
-            // Run sequentially when debugging enabled
-            if (this.cacheDebuggingEnabled) {
-                await p
+
+        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 bundleEntryReport = report.addEntryReport(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`)
+                bundleEntryReport.markRequested('BUNDLE_NOT_CONFIGURED')
+                tryDelete(bundleMetaFile)
+                return
+            } else {
+                const p = this.restoreArtifactBundle(bundle, bundlePattern, bundleMetaFile, bundleEntryReport)
+                // Run sequentially when debugging enabled
+                if (this.cacheDebuggingEnabled) {
+                    await p
+                }
+                processes.push(p)
             }
-            processes.push(p)
         }
 
         await Promise.all(processes)
@@ -48,25 +67,20 @@ export class GradleUserHomeCache extends AbstractCache {
 
     private async restoreArtifactBundle(
         bundle: string,
-        artifactPath: string
+        bundlePattern: string,
+        bundleMetaFile: string,
+        report: CacheEntryReport
     ): Promise<void> {
-        const bundleMetaFile = this.getBundleMetaFile(bundle)
-        if (fs.existsSync(bundleMetaFile)) {
-            const cacheKey = fs.readFileSync(bundleMetaFile, 'utf-8').trim()
-            const restoreKey = await this.restoreCache([artifactPath], cacheKey)
-            if (restoreKey) {
-                core.info(
-                    `Restored ${bundle} with key ${cacheKey} to ${artifactPath}`
-                )
-            } else {
-                this.debug(
-                    `Did not restore ${bundle} with key ${cacheKey} to ${artifactPath}`
-                )
-            }
+        const cacheKey = fs.readFileSync(bundleMetaFile, 'utf-8').trim()
+        report.markRequested(cacheKey)
+
+        const restoredKey = await this.restoreCache([bundlePattern], cacheKey)
+        if (restoredKey) {
+            core.info(`Restored ${bundle} with key ${cacheKey} to ${bundlePattern}`)
+            report.markRestored(restoredKey)
         } else {
-            this.debug(
-                `No metafile found to restore ${bundle}: ${bundleMetaFile}`
-            )
+            core.info(`Did not restore ${bundle} with key ${cacheKey} to ${bundlePattern}`)
+            tryDelete(bundleMetaFile)
         }
     }
 
@@ -74,6 +88,13 @@ export class GradleUserHomeCache extends AbstractCache {
         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(): Promise<void> {
         await this.reportGradleUserHomeSize('before saving common artifacts')
         this.removeExcludedPaths()
@@ -84,12 +105,8 @@ export class GradleUserHomeCache extends AbstractCache {
     }
 
     private removeExcludedPaths(): void {
-        const rawPaths: string[] = JSON.parse(
-            core.getInput(EXCLUDE_PATHS_PARAMETER)
-        )
-        const resolvedPaths = rawPaths.map(x =>
-            path.resolve(this.gradleUserHome, x)
-        )
+        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}`)
@@ -111,10 +128,7 @@ export class GradleUserHomeCache extends AbstractCache {
         await Promise.all(processes)
     }
 
-    private async saveArtifactBundle(
-        bundle: string,
-        artifactPath: string
-    ): Promise<void> {
+    private async saveArtifactBundle(bundle: string, artifactPath: string): Promise<void> {
         const bundleMetaFile = this.getBundleMetaFile(bundle)
 
         const globber = await glob.create(artifactPath, {
@@ -138,9 +152,7 @@ export class GradleUserHomeCache extends AbstractCache {
         const cacheKey = this.createCacheKey(bundle, bundleFiles)
 
         if (previouslyRestoredKey === cacheKey) {
-            this.debug(
-                `No change to previously restored ${bundle}. Not caching.`
-            )
+            this.debug(`No change to previously restored ${bundle}. Not caching.`)
         } else {
             core.info(`Caching ${bundle} with cache key: ${cacheKey}`)
             await this.saveCache([artifactPath], cacheKey)
@@ -154,14 +166,10 @@ export class GradleUserHomeCache extends AbstractCache {
 
     protected createCacheKey(bundle: string, files: string[]): string {
         const cacheKeyPrefix = getCacheKeyPrefix()
-        const relativeFiles = files.map(x =>
-            path.relative(this.gradleUserHome, x)
-        )
+        const relativeFiles = files.map(x => path.relative(this.gradleUserHome, x))
         const key = hashFileNames(relativeFiles)
 
-        this.debug(
-            `Generating cache key for ${bundle} from files: ${relativeFiles}`
-        )
+        this.debug(`Generating cache key for ${bundle} from files: ${relativeFiles}`)
 
         return `${cacheKeyPrefix}${bundle}-${key}`
     }
@@ -193,9 +201,7 @@ export class GradleUserHomeCache extends AbstractCache {
     }
 
     protected getCachePath(): string[] {
-        const rawPaths: string[] = JSON.parse(
-            core.getInput(INCLUDE_PATHS_PARAMETER)
-        )
+        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}`)
@@ -211,19 +217,10 @@ export class GradleUserHomeCache extends AbstractCache {
     }
 
     private getArtifactBundles(): Map<string, string> {
-        const artifactBundleDefinition = core.getInput(
-            ARTIFACT_BUNDLES_PARAMETER
-        )
-        this.debug(
-            `Using artifact bundle definition: ${artifactBundleDefinition}`
-        )
+        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)
-            ])
-        )
+        return new Map(Array.from(artifactBundles, ([key, value]) => [key, path.resolve(this.gradleUserHome, value)]))
     }
 
     private async reportGradleUserHomeSize(label: string): Promise<void> {
@@ -233,15 +230,11 @@ export class GradleUserHomeCache extends AbstractCache {
         if (!fs.existsSync(this.gradleUserHome)) {
             return
         }
-        const result = await exec.getExecOutput(
-            'du',
-            ['-h', '-c', '-t', '5M'],
-            {
-                cwd: this.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 (directories >5M): ${label}`)
 

src/cache-utils.ts

@@ -5,6 +5,8 @@ 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 JOB_CONTEXT_PARAMETER = 'workflow-job-context'
@@ -25,7 +27,7 @@ export function isCacheDebuggingEnabled(): boolean {
 
 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] || 'v3-'
+    return process.env[CACHE_PREFIX_VAR] || CACHE_PROTOCOL_VERSION
 }
 
 function generateCacheKey(cacheName: string): CacheKey {
@@ -44,11 +46,7 @@ function generateCacheKey(cacheName: string): CacheKey {
     // Exact match on Git SHA
     const cacheKey = `${cacheKeyForJobContext}-${github.context.sha}`
 
-    return new CacheKey(cacheKey, [
-        cacheKeyForJobContext,
-        cacheKeyForJob,
-        cacheKeyForOs
-    ])
+    return new CacheKey(cacheKey, [cacheKeyForJobContext, cacheKeyForJob, cacheKeyForOs])
 }
 
 function determineJobContext(): string {
@@ -66,9 +64,7 @@ export function hashStrings(values: string[]): string {
 }
 
 export function hashFileNames(fileNames: string[]): string {
-    return hashStrings(
-        fileNames.map(x => x.replace(new RegExp(`\\${path.sep}`, 'g'), '/'))
-    )
+    return hashStrings(fileNames.map(x => x.replace(new RegExp(`\\${path.sep}`, 'g'), '/')))
 }
 
 /**
@@ -109,6 +105,48 @@ class CacheKey {
     }
 }
 
+export class CachingReport {
+    cacheEntryReports: CacheEntryReport[] = []
+
+    get fullyRestored(): boolean {
+        return this.cacheEntryReports.every(x => !x.wasRequestedButNotRestored())
+    }
+
+    addEntryReport(name: string): CacheEntryReport {
+        const report = new CacheEntryReport(name)
+        this.cacheEntryReports.push(report)
+        return report
+    }
+}
+
+export class CacheEntryReport {
+    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[] = []): void {
+        this.requestedKey = key
+        this.requestedRestoreKeys = restoreKeys
+    }
+
+    markRestored(key: string): void {
+        this.restoredKey = key
+    }
+}
+
 export abstract class AbstractCache {
     private cacheName: string
     private cacheDescription: string
@@ -125,17 +163,15 @@ export abstract class AbstractCache {
         this.cacheDebuggingEnabled = isCacheDebuggingEnabled()
     }
 
-    async restore(): Promise<void> {
+    async restore(report: CachingReport): Promise<void> {
         if (this.cacheOutputExists()) {
-            core.info(
-                `${this.cacheDescription} already exists. Not restoring from cache.`
-            )
+            core.info(`${this.cacheDescription} already exists. Not restoring from cache.`)
             return
         }
 
-        const cacheKey = generateCacheKey(this.cacheName)
-
-        core.saveState(this.cacheKeyStateKey, cacheKey.key)
+        const cacheKey = this.prepareCacheKey()
+        const entryReport = report.addEntryReport(this.cacheName)
+        entryReport.markRequested(cacheKey.key, cacheKey.restoreKeys)
 
         this.debug(
             `Requesting ${this.cacheDescription} with
@@ -143,34 +179,29 @@ export abstract class AbstractCache {
                 restoreKeys:[${cacheKey.restoreKeys}]`
         )
 
-        const cacheResult = await this.restoreCache(
-            this.getCachePath(),
-            cacheKey.key,
-            cacheKey.restoreKeys
-        )
+        const cacheResult = await this.restoreCache(this.getCachePath(), cacheKey.key, cacheKey.restoreKeys)
 
         if (!cacheResult) {
-            core.info(
-                `${this.cacheDescription} cache not found. Will start with empty.`
-            )
+            core.info(`${this.cacheDescription} cache not found. Will start with empty.`)
             return
         }
 
         core.saveState(this.cacheResultStateKey, cacheResult)
-
-        core.info(
-            `Restored ${this.cacheDescription} from cache key: ${cacheResult}`
-        )
+        entryReport.markRestored(cacheResult)
+        core.info(`Restored ${this.cacheDescription} from cache key: ${cacheResult}`)
 
         try {
-            await this.afterRestore()
+            await this.afterRestore(report)
         } catch (error) {
-            core.warning(
-                `Restore ${this.cacheDescription} failed in 'afterRestore': ${error}`
-            )
+            core.warning(`Restore ${this.cacheDescription} failed in 'afterRestore': ${error}`)
         }
+    }
 
-        return
+    prepareCacheKey(): CacheKey {
+        const cacheKey = generateCacheKey(this.cacheName)
+
+        core.saveState(this.cacheKeyStateKey, cacheKey.key)
+        return cacheKey
     }
 
     protected async restoreCache(
@@ -179,11 +210,7 @@ export abstract class AbstractCache {
         cacheRestoreKeys: string[] = []
     ): Promise<string | undefined> {
         try {
-            return await cache.restoreCache(
-                cachePath,
-                cacheKey,
-                cacheRestoreKeys
-            )
+            return await cache.restoreCache(cachePath, cacheKey, cacheRestoreKeys)
         } catch (error) {
             if (error instanceof cache.ValidationError) {
                 // Validation errors should fail the build action
@@ -195,7 +222,7 @@ export abstract class AbstractCache {
         }
     }
 
-    protected async afterRestore(): Promise<void> {}
+    protected async afterRestore(_report: CachingReport): Promise<void> {}
 
     async save(): Promise<void> {
         if (!this.cacheOutputExists()) {
@@ -207,31 +234,23 @@ export abstract class AbstractCache {
         const cacheResult = core.getState(this.cacheResultStateKey)
 
         if (!cacheKey) {
-            this.debug(
-                `${this.cacheDescription} existed prior to cache restore. Not saving.`
-            )
+            this.debug(`${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.`
-            )
+            core.info(`Cache hit occurred on the cache key ${cacheKey}, not saving cache.`)
             return
         }
 
         try {
             await this.beforeSave()
         } catch (error) {
-            core.warning(
-                `Save ${this.cacheDescription} failed in 'beforeSave': ${error}`
-            )
+            core.warning(`Save ${this.cacheDescription} failed in 'beforeSave': ${error}`)
             return
         }
 
-        core.info(
-            `Caching ${this.cacheDescription} with cache key: ${cacheKey}`
-        )
+        core.info(`Caching ${this.cacheDescription} with cache key: ${cacheKey}`)
         const cachePath = this.getCachePath()
         await this.saveCache(cachePath, cacheKey)
 
@@ -240,10 +259,7 @@ export abstract class AbstractCache {
 
     protected async beforeSave(): Promise<void> {}
 
-    protected async saveCache(
-        cachePath: string[],
-        cacheKey: string
-    ): Promise<void> {
+    protected async saveCache(cachePath: string[], cacheKey: string): Promise<void> {
         try {
             await cache.saveCache(cachePath, cacheKey)
         } catch (error) {

src/caches.ts

@@ -1,32 +1,37 @@
 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 {CachingReport, isCacheDisabled, isCacheReadOnly} from './cache-utils'
 
 const BUILD_ROOT_DIR = 'BUILD_ROOT_DIR'
 
 export async function restore(buildRootDirectory: string): Promise<void> {
     if (isCacheDisabled()) {
-        core.info(
-            'Cache is disabled: will not restore state from previous builds.'
-        )
+        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(buildRootDirectory).restore(),
-            new ProjectDotGradleCache(buildRootDirectory).restore()
-        ])
+
+        const cachingReport = new CachingReport()
+
+        await new GradleUserHomeCache(buildRootDirectory).restore(cachingReport)
+
+        const projectDotGradleCache = new ProjectDotGradleCache(buildRootDirectory)
+        if (cachingReport.fullyRestored) {
+            // Only restore the configuration-cache if the Gradle Home is fully restored
+            await projectDotGradleCache.restore(cachingReport)
+        } else {
+            // Otherwise, prepare the cache key for later save()
+            projectDotGradleCache.prepareCacheKey()
+        }
     })
 }
 
 export async function save(): Promise<void> {
     if (isCacheReadOnly()) {
-        core.info(
-            'Cache is read-only: will not save state for use in subsequent builds.'
-        )
+        core.info('Cache is read-only: will not save state for use in subsequent builds.')
         return
     }
 

src/execution.ts

@@ -3,11 +3,7 @@ import fs from 'fs'
 import path from 'path'
 import {writeInitScript} from './build-scan-capture'
 
-export async function execute(
-    executable: string,
-    root: string,
-    args: string[]
-): Promise<BuildResult> {
+export async function execute(executable: string, root: string, args: string[]): Promise<BuildResult> {
     let buildScanUrl: string | undefined
 
     // TODO: instead of running with no-daemon, run `--stop` in post action.

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

@@ -18,10 +18,7 @@ export async function run(): Promise<void> {
         const args: string[] = parseCommandLineArguments()
 
         const result = await execution.execute(
-            await resolveGradleExecutable(
-                workspaceDirectory,
-                buildRootDirectory
-            ),
+            await resolveGradleExecutable(workspaceDirectory, buildRootDirectory),
             buildRootDirectory,
             args
         )
@@ -34,9 +31,7 @@ export async function run(): Promise<void> {
             if (result.buildScanUrl) {
                 core.setFailed(`Gradle build failed: ${result.buildScanUrl}`)
             } else {
-                core.setFailed(
-                    `Gradle build failed: process exited with status ${result.status}`
-                )
+                core.setFailed(`Gradle build failed: process exited with status ${result.status}`)
             }
         } else {
             if (result.buildScanUrl) {
@@ -53,10 +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))
@@ -73,9 +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

@@ -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)
@@ -136,14 +111,10 @@ 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}`
-        )
+        core.info(`Restored Gradle distribution ${cacheKey} from cache to ${downloadPath}`)
         return downloadPath
     }
-    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()) {
@@ -151,10 +122,7 @@ async function downloadAndCacheGradleDistribution(
             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)
-            ) {
+            if (error instanceof cache.ValidationError || !(error instanceof Error)) {
                 throw error
             }
             core.warning(error.message)
@@ -163,16 +131,9 @@ async function downloadAndCacheGradleDistribution(
     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 +144,7 @@ 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))
 }