mirror of
https://github.com/gradle/gradle-build-action.git
synced 2025-04-05 04:44:16 +02:00
Store all cache metadata in a single JSON file
Instead of storing cache metadata in a separate .cache file per artifact bundle, all of the metadata is now stored in a single `.json` file. This will make it easier to implement more flexible artifact-caching strategies, such as caching each wrapper zip separately.
This commit is contained in:
Daz DeBoer
parent
4fab1e5c7f
commit
201b58add4
1 changed files with 61 additions and 47 deletions
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@ -14,6 +14,16 @@ const INCLUDE_PATHS_PARAMETER = 'gradle-home-cache-includes'
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const EXCLUDE_PATHS_PARAMETER = 'gradle-home-cache-excludes'
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const ARTIFACT_BUNDLES_PARAMETER = 'gradle-home-cache-artifact-bundles'
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class CacheResult {
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readonly bundle: string
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readonly cacheKey: string | undefined
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constructor(bundle: string, cacheKey: string | undefined) {
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this.bundle = bundle
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this.cacheKey = cacheKey
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}
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}
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export class GradleUserHomeCache extends AbstractCache {
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private gradleUserHome: string
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@ -34,24 +44,21 @@ export class GradleUserHomeCache extends AbstractCache {
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}
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private async restoreArtifactBundles(listener: CacheListener): Promise<void> {
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const processes: Promise<void>[] = []
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const bundleMetaFiles = await this.getBundleMetaFiles()
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const bundleMetadata = this.loadBundleMetadata()
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const bundlePatterns = this.getArtifactBundles()
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// Iterate over all bundle meta files and try to restore
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for (const bundleMetaFile of bundleMetaFiles) {
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const bundle = path.basename(bundleMetaFile, '.cache')
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const processes: Promise<CacheResult>[] = []
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for (const [bundle, cacheKey] of bundleMetadata) {
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const entryListener = listener.entry(bundle)
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const bundlePattern = bundlePatterns.get(bundle)
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// Handle case where the 'artifactBundlePatterns' have been changed
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if (bundlePattern === undefined) {
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core.info(`Found bundle metafile for ${bundle} but no such bundle defined`)
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core.info(`Found bundle metadata for ${bundle} but no such bundle defined`)
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entryListener.markRequested('BUNDLE_NOT_CONFIGURED')
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tryDelete(bundleMetaFile)
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} else {
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const p = this.restoreArtifactBundle(bundle, bundlePattern, bundleMetaFile, entryListener)
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const p = this.restoreArtifactBundle(bundle, cacheKey, bundlePattern, entryListener)
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// Run sequentially when debugging enabled
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if (this.cacheDebuggingEnabled) {
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await p
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@ -60,39 +67,30 @@ export class GradleUserHomeCache extends AbstractCache {
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}
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}
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await Promise.all(processes)
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const results = await Promise.all(processes)
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this.saveMetadataForCacheResults(results)
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}
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private async restoreArtifactBundle(
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bundle: string,
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cacheKey: string,
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bundlePattern: string,
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bundleMetaFile: string,
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listener: CacheEntryListener
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): Promise<void> {
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const cacheKey = fs.readFileSync(bundleMetaFile, 'utf-8').trim()
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): Promise<CacheResult> {
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listener.markRequested(cacheKey)
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const restoredEntry = await this.restoreCache([bundlePattern], cacheKey)
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if (restoredEntry) {
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core.info(`Restored ${bundle} with key ${cacheKey} to ${bundlePattern}`)
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listener.markRestored(restoredEntry.key, restoredEntry.size)
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return new CacheResult(bundle, cacheKey)
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} else {
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core.info(`Did not restore ${bundle} with key ${cacheKey} to ${bundlePattern}`)
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tryDelete(bundleMetaFile)
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return new CacheResult(bundle, undefined)
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}
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}
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private getBundleMetaFile(name: string): string {
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return path.resolve(this.gradleUserHome, META_FILE_DIR, `${name}.cache`)
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}
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private async getBundleMetaFiles(): Promise<string[]> {
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const metaFiles = path.resolve(this.gradleUserHome, META_FILE_DIR, '*.cache')
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const globber = await glob.create(metaFiles)
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const bundleFiles = await globber.glob()
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return bundleFiles
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}
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async beforeSave(listener: CacheListener): Promise<void> {
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await this.reportGradleUserHomeSize('before saving common artifacts')
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this.removeExcludedPaths()
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@ -113,11 +111,13 @@ export class GradleUserHomeCache extends AbstractCache {
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}
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private async saveArtifactBundles(listener: CacheListener): Promise<void> {
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const processes: Promise<void>[] = []
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const bundleMetadata = this.loadBundleMetadata()
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const processes: Promise<CacheResult>[] = []
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for (const [bundle, pattern] of this.getArtifactBundles()) {
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const entryListener = listener.entry(bundle)
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const p = this.saveArtifactBundle(bundle, pattern, entryListener)
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const previouslyRestoredKey = bundleMetadata.get(bundle)
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const p = this.saveArtifactBundle(bundle, pattern, previouslyRestoredKey, entryListener)
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// Run sequentially when debugging enabled
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if (this.cacheDebuggingEnabled) {
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await p
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@ -125,16 +125,17 @@ export class GradleUserHomeCache extends AbstractCache {
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processes.push(p)
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}
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await Promise.all(processes)
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const results = await Promise.all(processes)
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this.saveMetadataForCacheResults(results)
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}
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private async saveArtifactBundle(
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bundle: string,
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artifactPath: string,
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previouslyRestoredKey: string | undefined,
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listener: CacheEntryListener
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): Promise<void> {
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const bundleMetaFile = this.getBundleMetaFile(bundle)
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): Promise<CacheResult> {
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const globber = await glob.create(artifactPath, {
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implicitDescendants: false,
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followSymbolicLinks: false
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@ -144,15 +145,9 @@ export class GradleUserHomeCache extends AbstractCache {
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// Handle no matching files
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if (bundleFiles.length === 0) {
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this.debug(`No files found to cache for ${bundle}`)
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if (fs.existsSync(bundleMetaFile)) {
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tryDelete(bundleMetaFile)
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}
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return
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return new CacheResult(bundle, undefined)
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}
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const previouslyRestoredKey = fs.existsSync(bundleMetaFile)
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? fs.readFileSync(bundleMetaFile, 'utf-8').trim()
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: ''
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const cacheKey = this.createCacheKey(bundle, bundleFiles)
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if (previouslyRestoredKey === cacheKey) {
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@ -161,7 +156,6 @@ export class GradleUserHomeCache extends AbstractCache {
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core.info(`Caching ${bundle} with cache key: ${cacheKey}`)
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const savedEntry = await this.saveCache([artifactPath], cacheKey)
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if (savedEntry !== undefined) {
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this.writeBundleMetaFile(bundleMetaFile, cacheKey)
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listener.markSaved(savedEntry.key, savedEntry.size)
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}
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}
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@ -169,6 +163,8 @@ export class GradleUserHomeCache extends AbstractCache {
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for (const file of bundleFiles) {
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tryDelete(file)
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}
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return new CacheResult(bundle, cacheKey)
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}
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protected createCacheKey(bundle: string, files: string[]): string {
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@ -181,15 +177,33 @@ export class GradleUserHomeCache extends AbstractCache {
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return `${cacheKeyPrefix}${bundle}-${key}`
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}
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private writeBundleMetaFile(metaFile: string, cacheKey: string): void {
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this.debug(`Writing bundle metafile: ${metaFile}`)
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const dirName = path.dirname(metaFile)
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if (!fs.existsSync(dirName)) {
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fs.mkdirSync(dirName)
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private loadBundleMetadata(): Map<string, string> {
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const bundleMetaFile = path.resolve(this.gradleUserHome, META_FILE_DIR, 'bundles.json')
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if (!fs.existsSync(bundleMetaFile)) {
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return new Map<string, string>()
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}
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const filedata = fs.readFileSync(bundleMetaFile, 'utf-8')
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core.debug(`Loaded bundle metadata: ${filedata}`)
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return new Map(JSON.parse(filedata))
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}
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fs.writeFileSync(metaFile, cacheKey)
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private saveMetadataForCacheResults(results: CacheResult[]): void {
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const metadata = new Map<string, string>()
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for (const result of results) {
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if (result.cacheKey !== undefined) {
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metadata.set(result.bundle, result.cacheKey)
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}
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}
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const filedata = JSON.stringify(Array.from(metadata))
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core.debug(`Saving bundle metadata: ${filedata}`)
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const bundleMetaDir = path.resolve(this.gradleUserHome, META_FILE_DIR)
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const bundleMetaFile = path.resolve(bundleMetaDir, 'bundles.json')
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if (!fs.existsSync(bundleMetaDir)) {
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fs.mkdirSync(bundleMetaDir, {recursive: true})
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}
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fs.writeFileSync(bundleMetaFile, filedata, 'utf-8')
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}
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protected determineGradleUserHome(rootDir: string): string {
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