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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| /* | ||
| * Copyright 2020 the original author or authors. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package org.beryx.jlink.util | ||
|
|
||
| import groovy.transform.CompileStatic | ||
| import org.gradle.api.GradleException | ||
| import org.gradle.api.Project | ||
| import org.gradle.api.file.CopySpec | ||
| import org.gradle.api.logging.Logger | ||
| import org.gradle.api.logging.Logging | ||
|
|
||
| @CompileStatic | ||
| class JdkUtil { | ||
| private static final Logger LOGGER = Logging.getLogger(JdkUtil.class) | ||
|
|
||
| static class JdkDownloadOptions implements Serializable { | ||
| transient final Project project | ||
| String downloadDir | ||
| String archiveName | ||
| String archiveExtension | ||
| String pathToHome | ||
| boolean overwrite | ||
|
|
||
| JdkDownloadOptions(Project project, String targetPlatform, String downloadUrl) { | ||
| this.project = project | ||
| this.downloadDir = "$project.buildDir/jdks/$targetPlatform" | ||
| this.archiveName = "jdk" | ||
| def urlPath = new URL(downloadUrl).path | ||
| if(urlPath.endsWith(".tar.gz")) archiveExtension = "tar.gz" | ||
| if(urlPath.endsWith(".zip")) archiveExtension = "zip" | ||
| } | ||
|
|
||
| void validate() { | ||
| if(!project) throw new GradleException("Internal error: project not set in JdkDownloadOptions") | ||
| if(!downloadDir) throw new GradleException("Please provide a value for 'downloadDir' when calling the 'jdkDownload' method") | ||
| if(!archiveName) throw new GradleException("Please provide a value for 'archiveName' when calling the 'jdkDownload' method") | ||
| if(!archiveExtension) throw new GradleException("Cannot infer the archive type. Please provide a value for 'archiveExtension' when calling the 'jdkDownload' method. Accepted values: 'tar.gz', 'zip'") | ||
| } | ||
| } | ||
|
|
||
| static String downloadFrom(String url, JdkDownloadOptions options) { | ||
| options.validate() | ||
| def archiveFile = new File("${options.downloadDir}/${options.archiveName}.${options.archiveExtension}") | ||
| def archiveDir = archiveFile.parentFile | ||
| maybeCreateDir(archiveDir) | ||
| if(options.overwrite) { | ||
| archiveFile.delete() | ||
| if(archiveFile.exists()) throw new GradleException("Cannot delete $archiveFile") | ||
| } else { | ||
| def pathToHome = options.pathToHome ?: detectPathToHome(archiveDir) | ||
| if(pathToHome) { | ||
| LOGGER.info("JDK found at $archiveDir/$pathToHome; skipping download from $url") | ||
| return pathToHome | ||
| } | ||
| } | ||
| if(!archiveFile.file) { | ||
| LOGGER.info("Downloading from $url into $archiveFile") | ||
| new URL(url).withInputStream{ is -> archiveFile.withOutputStream{ it << is }} | ||
| } | ||
| return unpackJdk(archiveDir, archiveFile, options) | ||
| } | ||
|
|
||
| private static String unpackJdk(File archiveDir, File archiveFile, JdkDownloadOptions options) { | ||
| if(!archiveFile.file) throw new GradleException("Archive file $archiveFile does not exist.") | ||
| LOGGER.info("Unpacking $archiveFile") | ||
| options.project.copy { CopySpec spec -> | ||
| spec.from ((options.archiveExtension == 'tar.gz') | ||
| ? options.project.tarTree(options.project.resources.gzip(archiveFile)) | ||
| : options.project.zipTree(archiveFile)) | ||
| spec.into archiveDir | ||
| } | ||
| if(options.pathToHome) { | ||
| if(!isJdkHome(new File("$archiveDir/$options.pathToHome"))) { | ||
| LOGGER.warn("JDK home not found at $archiveDir/$options.pathToHome! Please check the the unpacked archive.") | ||
| } | ||
| return options.pathToHome | ||
| } else { | ||
| def pathToHome = detectPathToHome(archiveDir) | ||
| if(!pathToHome) throw new GradleException("Cannot detect JDK home in $archiveDir. Check the unpacked archive and/or try setting `pathToHome` when calling the 'jdkDownload' method") | ||
| return pathToHome | ||
| } | ||
| } | ||
|
|
||
| private static String detectPathToHome(File dir) { | ||
| def dirs = [dir] | ||
| dir.eachDirRecurse { dirs << it } | ||
| def homeDir = dirs.find { isJdkHome(it) } | ||
| if(!homeDir) return null | ||
| def relPath = dir.toPath().relativize(homeDir.toPath()) | ||
| return relPath ?: '.' | ||
| } | ||
|
|
||
| private static boolean isJdkHome(File dir) { | ||
| new File("$dir/bin/java").file || new File("$dir/bin/java.exe").file | ||
| } | ||
|
|
||
| private static void maybeCreateDir(File dir) { | ||
| if (!dir.directory) { | ||
| if (dir.exists()) throw new GradleException("$dir exists but it's not a directory.") | ||
| dir.mkdirs() | ||
| if (!dir.directory) throw new GradleException("Cannot create directory $dir.") | ||
| } | ||
| } | ||
| } |