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/*
* Copyright 2014 TMate Software <support@subgit.com>
*
* 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.
*/
import com.gitblit.GitBlit
import com.gitblit.models.RepositoryModel
import com.gitblit.models.UserModel
import org.eclipse.jgit.storage.file.FileBasedConfig
import org.eclipse.jgit.transport.ReceiveCommand
import org.eclipse.jgit.transport.ReceiveCommand.Result
import org.eclipse.jgit.util.FS
import org.slf4j.Logger
/**
* Sample Gitblit Pre-Receive Hook: subgit
* http://subgit.com
*
* The Pre-Receive hook is executed after an incoming push has been parsed,
* validated, and objects have been written but BEFORE the refs are updated.
* This is the appropriate point to block a push for some reason.
*
* This script is only executed when pushing to *Gitblit*, not to other Git
* tooling you may be using.
*
* If this script is specified in *groovy.preReceiveScripts* of gitblit.properties
* or web.xml then it will be executed by any repository when it receives a
* push. If you choose to share your script then you may have to consider
* tailoring control-flow based on repository access restrictions.
*
* Scripts may also be specified per-repository in the repository settings page.
* Shared scripts will be excluded from this list of available scripts.
*
* This script is dynamically reloaded and it is executed within it's own
* exception handler so it will not crash another script nor crash Gitblit.
*
* This script may reject one or more commands, but will never return false.
* Subsequent scripts, if any, will always be invoked.
*
* Bound Variables:
* gitblit Gitblit Server com.gitblit.GitBlit
* repository Gitblit Repository com.gitblit.models.RepositoryModel
* receivePack JGit Receive Pack org.eclipse.jgit.transport.ReceivePack
* user Gitblit User com.gitblit.models.UserModel
* commands JGit commands Collection<org.eclipse.jgit.transport.ReceiveCommand>
* url Base url for Gitblit String
* logger Logs messages to Gitblit org.slf4j.Logger
* clientLogger Logs messages to Git client com.gitblit.utils.ClientLogger
*
* Accessing Gitblit Custom Fields:
* def myCustomField = repository.customFields.myCustomField
*
*
* Usage:
*
* 1. Create Git repository in GitBlit;
* 2. Register subgit pre-receive groovy hook in repository settings;
* 3. Install SubGit into created repository:
* subgit configure --svn-url <SVN_URL> <GITBLIT_HOME>/data/git/<GIT_REPO>
* subgit install <GITBLIT_HOME>/data/git/<GIT_REPO>
*
* You can enable SubGit pre-receive groovy hook for all repositories: this shouldn't
* cause any problems as the hook skips those repositories with no SubGit installed.
*
*/
def JAVA_OPTIONS = ['-noverify', '-Djava.awt.headless=true']
def MAIN_CLASS = 'org.tmatesoft.translator.SubGitHook'
def repositoryRoot = gitblit.getRepository(repository.name).directory
def classpath = getClasspath(repositoryRoot)
if (classpath != null) {
def input = commands.collect {command -> "${command.oldId.name()} ${command.newId.name()} ${command.refName}\n"}.join()
def commandLine = [javaExecutable] + JAVA_OPTIONS + ['-cp', classpath, MAIN_CLASS, 'pre-receive', repositoryRoot.absolutePath]
logger.info("Running SubGit pre-receive hook:\n${commandLine}\n${input}")
def process = new ProcessBuilder(commandLine).directory(repositoryRoot).start()
writeInput(process, input)
readOutput(process)
if (process.exitValue() != 0) {
commands.each {command -> command.setResult(Result.REJECTED_OTHER_REASON, 'SubGit: failed to synchronize changes with SVN server')}
}
}
def getClasspath(repositoryRoot) {
def configFile = new File(repositoryRoot, 'subgit/.run/config')
def config = new FileBasedConfig(configFile, FS.DETECTED)
config.load()
def daemonClasspath = config.getString('daemon', null, 'classpath')
if (daemonClasspath == null) {
return null
}
def binariesDirectory = new File(daemonClasspath)
if (!binariesDirectory.absolute) {
binariesDirectory = new File(repositoryRoot, daemonClasspath)
}
binariesDirectory.listFiles({dir, name -> name ==~ /.*.jar/ } as FilenameFilter).join(File.pathSeparator)
}
def getJavaExecutable() {
def javaHome = System.properties['java.home']
def isWindows = System.properties['os.name'].toLowerCase().contains('windows')
def executableName = isWindows ? 'java.exe' : 'java'
"${javaHome}/bin/${executableName}".toString()
}
def writeInput(process, input) {
Thread.start {
process.out << input
process.out.close()
}
}
def readOutput(process) {
try {
def outReader = Thread.start {
process.inputStream.eachLine {line -> clientLogger.info(line)}
}
def errReader = Thread.start {
process.errorStream.eachLine {line -> clientLogger.info(line)}
}
process.waitFor()
outReader.join()
errReader.join()
} finally {
process.destroy()
}
}