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Register pre-installed JDKs in .m2/toolchains.xml

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Since adding these to the `org.gradle.java.installations.fromEnv` property
is problematic (#1024), this mechanism allows the default toolchains to
be discovered by Gradle via a different mechanism.

The default JDK installations are added to `~/.m2/toolchains.xml` such that
they are discoverable by Gradle toolchain support.
The `setup-java` action also writes to this file, so we merge with any existing
content: this allows both pre-installed and "setup" JDKs to be automatically
detected by Gradle.
This commit is contained in:
daz
2024-01-03 21:04:20 -07:00
parent 7c57ba1136
commit d4e24dfc10
5 changed files with 110 additions and 52 deletions
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57
src/cache-base.ts
View File

@@ -17,23 +17,18 @@ export class GradleStateCache {
private cacheName: string
private cacheDescription: string
protected readonly userHome: string
protected readonly gradleUserHome: string
constructor(gradleUserHome: string) {
constructor(userHome: string, gradleUserHome: string) {
this.userHome = userHome
this.gradleUserHome = gradleUserHome
this.cacheName = 'gradle'
this.cacheDescription = 'Gradle User Home'
}
init(): void {
// Copy init-scripts to Gradle User Home
const actionCacheDir = path.resolve(this.gradleUserHome, '.gradle-build-action')
fs.mkdirSync(actionCacheDir, {recursive: true})
const initScriptsDir = path.resolve(this.gradleUserHome, 'init.d')
fs.mkdirSync(initScriptsDir, {recursive: true})
this.initializeGradleUserHome(this.gradleUserHome, initScriptsDir)
this.initializeGradleUserHome()
// Export the GRADLE_ENCRYPTION_KEY variable if provided
const encryptionKey = params.getCacheEncryptionKey()
@@ -188,8 +183,21 @@ export class GradleStateCache {
return path.resolve(this.gradleUserHome, rawPath)
}
private initializeGradleUserHome(gradleUserHome: string, initScriptsDir: string): void {
// Copy init scripts from src/resources
private initializeGradleUserHome(): void {
// Create a directory for storing action metadata
const actionCacheDir = path.resolve(this.gradleUserHome, '.gradle-build-action')
fs.mkdirSync(actionCacheDir, {recursive: true})
this.copyInitScripts()
// Copy the default toolchain definitions to `~/.m2/toolchains.xml`
this.registerToolchains()
}
private copyInitScripts(): void {
// Copy init scripts from src/resources to Gradle UserHome
const initScriptsDir = path.resolve(this.gradleUserHome, 'init.d')
fs.mkdirSync(initScriptsDir, {recursive: true})
const initScriptFilenames = [
'gradle-build-action.build-result-capture.init.gradle',
'gradle-build-action.build-result-capture-service.plugin.groovy',
@@ -198,15 +206,36 @@ export class GradleStateCache {
'gradle-build-action.inject-gradle-enterprise.init.gradle'
]
for (const initScriptFilename of initScriptFilenames) {
const initScriptContent = this.readInitScriptAsString(initScriptFilename)
const initScriptContent = this.readResourceFileAsString('init-scripts', initScriptFilename)
const initScriptPath = path.resolve(initScriptsDir, initScriptFilename)
fs.writeFileSync(initScriptPath, initScriptContent)
}
}
private readInitScriptAsString(resource: string): string {
private registerToolchains(): void {
const preInstalledToolchains = this.readResourceFileAsString('toolchains.xml')
const m2dir = path.resolve(this.userHome, '.m2')
const toolchainXmlTarget = path.resolve(m2dir, 'toolchains.xml')
if (!fs.existsSync(toolchainXmlTarget)) {
// Write a new toolchains.xml file if it doesn't exist
fs.mkdirSync(m2dir, {recursive: true})
fs.writeFileSync(toolchainXmlTarget, preInstalledToolchains)
core.info(`Wrote default JDK locations to ${toolchainXmlTarget}`)
} else {
// Merge into an existing toolchains.xml file
const existingToolchainContent = fs.readFileSync(toolchainXmlTarget, 'utf8')
const appendedContent = preInstalledToolchains.split('<toolchains>').pop()!
const mergedContent = existingToolchainContent.replace('</toolchains>', appendedContent)
fs.writeFileSync(toolchainXmlTarget, mergedContent)
core.info(`Merged default JDK locations into ${toolchainXmlTarget}`)
}
}
private readResourceFileAsString(...paths: string[]): string {
// Resolving relative to __dirname will allow node to find the resource at runtime
const absolutePath = path.resolve(__dirname, '..', '..', 'src', 'resources', 'init-scripts', resource)
const absolutePath = path.resolve(__dirname, '..', '..', 'src', 'resources', ...paths)
return fs.readFileSync(absolutePath, 'utf8')
}