/*
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* Copyright 2014 TMate Software <support@subgit.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import com.gitblit.GitBlit
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import com.gitblit.models.RepositoryModel
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import com.gitblit.models.UserModel
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import org.eclipse.jgit.storage.file.FileBasedConfig
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import org.eclipse.jgit.transport.ReceiveCommand
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import org.eclipse.jgit.transport.ReceiveCommand.Result
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import org.eclipse.jgit.util.FS
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import org.slf4j.Logger
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/**
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* Sample Gitblit Pre-Receive Hook: subgit
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* http://subgit.com
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*
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* The Pre-Receive hook is executed after an incoming push has been parsed,
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* validated, and objects have been written but BEFORE the refs are updated.
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* This is the appropriate point to block a push for some reason.
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*
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* This script is only executed when pushing to *Gitblit*, not to other Git
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* tooling you may be using.
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*
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* If this script is specified in *groovy.preReceiveScripts* of gitblit.properties
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* or web.xml then it will be executed by any repository when it receives a
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* push. If you choose to share your script then you may have to consider
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* tailoring control-flow based on repository access restrictions.
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*
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* Scripts may also be specified per-repository in the repository settings page.
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* Shared scripts will be excluded from this list of available scripts.
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*
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* This script is dynamically reloaded and it is executed within it's own
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* exception handler so it will not crash another script nor crash Gitblit.
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*
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* This script may reject one or more commands, but will never return false.
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* Subsequent scripts, if any, will always be invoked.
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*
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* Bound Variables:
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* gitblit Gitblit Server com.gitblit.GitBlit
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* repository Gitblit Repository com.gitblit.models.RepositoryModel
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* receivePack JGit Receive Pack org.eclipse.jgit.transport.ReceivePack
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* user Gitblit User com.gitblit.models.UserModel
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* commands JGit commands Collection<org.eclipse.jgit.transport.ReceiveCommand>
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* url Base url for Gitblit String
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* logger Logs messages to Gitblit org.slf4j.Logger
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* clientLogger Logs messages to Git client com.gitblit.utils.ClientLogger
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*
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* Accessing Gitblit Custom Fields:
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* def myCustomField = repository.customFields.myCustomField
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*
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*
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* Usage:
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*
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* 1. Create Git repository in GitBlit;
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* 2. Register subgit pre-receive groovy hook in repository settings;
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* 3. Install SubGit into created repository:
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* subgit configure --svn-url <SVN_URL> <GITBLIT_HOME>/data/git/<GIT_REPO>
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* subgit install <GITBLIT_HOME>/data/git/<GIT_REPO>
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*
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* You can enable SubGit pre-receive groovy hook for all repositories: this shouldn't
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* cause any problems as the hook skips those repositories with no SubGit installed.
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*
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*/
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def JAVA_OPTIONS = ['-noverify', '-Djava.awt.headless=true']
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def MAIN_CLASS = 'org.tmatesoft.translator.SubGitHook'
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def repositoryRoot = gitblit.getRepository(repository.name).directory
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def classpath = getClasspath(repositoryRoot)
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if (classpath != null) {
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def input = commands.collect {command -> "${command.oldId.name()} ${command.newId.name()} ${command.refName}\n"}.join()
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def commandLine = [javaExecutable] + JAVA_OPTIONS + ['-cp', classpath, MAIN_CLASS, 'pre-receive', repositoryRoot.absolutePath]
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logger.info("Running SubGit pre-receive hook:\n${commandLine}\n${input}")
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def process = new ProcessBuilder(commandLine).directory(repositoryRoot).start()
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writeInput(process, input)
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readOutput(process)
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if (process.exitValue() != 0) {
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commands.each {command -> command.setResult(Result.REJECTED_OTHER_REASON, 'SubGit: failed to synchronize changes with SVN server')}
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}
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}
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def getClasspath(repositoryRoot) {
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def configFile = new File(repositoryRoot, 'subgit/.run/config')
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def config = new FileBasedConfig(configFile, FS.DETECTED)
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config.load()
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def daemonClasspath = config.getString('daemon', null, 'classpath')
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if (daemonClasspath == null) {
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return null
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}
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def binariesDirectory = new File(daemonClasspath)
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if (!binariesDirectory.absolute) {
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binariesDirectory = new File(repositoryRoot, daemonClasspath)
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}
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binariesDirectory.listFiles({dir, name -> name ==~ /.*.jar/ } as FilenameFilter).join(File.pathSeparator)
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}
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def getJavaExecutable() {
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def javaHome = System.properties['java.home']
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def isWindows = System.properties['os.name'].toLowerCase().contains('windows')
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def executableName = isWindows ? 'java.exe' : 'java'
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"${javaHome}/bin/${executableName}".toString()
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}
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def writeInput(process, input) {
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Thread.start {
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process.out << input
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process.out.close()
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}
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}
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def readOutput(process) {
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try {
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def outReader = Thread.start {
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process.inputStream.eachLine {line -> clientLogger.info(line)}
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}
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def errReader = Thread.start {
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process.errorStream.eachLine {line -> clientLogger.info(line)}
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}
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process.waitFor()
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outReader.join()
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errReader.join()
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} finally {
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process.destroy()
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}
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}
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