| // Copyright (C) 2016 The Android Open Source Project |
| // |
| // 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 com.googlesource.gerrit.plugins.hooks; |
| |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| |
| import com.google.common.io.ByteStreams; |
| import com.google.gerrit.metrics.Timer1; |
| import com.google.gerrit.reviewdb.client.Project; |
| import com.google.gerrit.server.git.GitRepositoryManager; |
| |
| import org.eclipse.jgit.lib.Repository; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.io.StringReader; |
| import java.io.StringWriter; |
| import java.nio.file.Path; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.concurrent.Callable; |
| |
| class HookTask { |
| private static final Logger log = LoggerFactory.getLogger(HookTask.class); |
| |
| private final GitRepositoryManager gitManager; |
| private final Path sitePath; |
| private final String projectName; |
| private final Path hook; |
| private final List<String> args; |
| private final HookMetrics metrics; |
| private StringWriter output; |
| private Process ps; |
| |
| public static class Async extends HookTask implements Runnable { |
| Async(GitRepositoryManager gitManager, Path sitePath, String projectName, |
| Path hook, HookArgs args) { |
| super(gitManager, sitePath, projectName, hook, args); |
| } |
| |
| @Override |
| public void run() { |
| super.runHook(); |
| } |
| } |
| |
| public static class Sync extends HookTask implements Callable<HookResult> { |
| Sync(GitRepositoryManager gitManager, Path sitePath, String projectName, |
| Path hook, HookArgs args) { |
| super(gitManager, sitePath, projectName, hook, args); |
| } |
| |
| @Override |
| public HookResult call() throws Exception { |
| return super.runHook(); |
| } |
| } |
| |
| HookTask(GitRepositoryManager gitManager, |
| Path sitePath, |
| String projectName, |
| Path hook, |
| HookArgs args) { |
| this.gitManager = gitManager; |
| this.sitePath = sitePath; |
| this.projectName = projectName; |
| this.hook = hook; |
| this.args = args.get(); |
| this.metrics = args.metrics(); |
| } |
| |
| public void cancel() { |
| ps.destroy(); |
| } |
| |
| protected String getName() { |
| return hook.getFileName().toString(); |
| } |
| |
| public String getOutput() { |
| return output != null ? output.toString() : null; |
| } |
| |
| public HookResult runHook() { |
| HookResult result = null; |
| String name = getName(); |
| try (Timer1.Context timer = metrics.start(name)) { |
| metrics.count(name); |
| List<String> argv = new ArrayList<>(1 + args.size()); |
| argv.add(hook.toAbsolutePath().toString()); |
| argv.addAll(args); |
| |
| ProcessBuilder pb = new ProcessBuilder(argv); |
| pb.redirectErrorStream(true); |
| |
| Map<String, String> env = pb.environment(); |
| env.put("GERRIT_SITE", sitePath.toAbsolutePath().toString()); |
| |
| if (projectName != null) { |
| try (Repository git = gitManager.openRepository( |
| new Project.NameKey(projectName))) { |
| pb.directory(git.getDirectory()); |
| env.put("GIT_DIR", git.getDirectory().getAbsolutePath()); |
| } |
| } |
| |
| ps = pb.start(); |
| ps.getOutputStream().close(); |
| String output = |
| new String(ByteStreams.toByteArray(ps.getInputStream()), UTF_8); |
| ps.waitFor(); |
| result = new HookResult(ps.exitValue(), output); |
| } catch (InterruptedException iex) { |
| // InterruptedException - timeout or cancel |
| metrics.timeout(name); |
| } catch (Throwable err) { |
| metrics.error(name); |
| log.error("Error running hook " + hook.toAbsolutePath(), err); |
| } |
| |
| if (result != null) { |
| int exitValue = result.getExitValue(); |
| if (exitValue == 0) { |
| log.debug("hook[" + getName() + "] exitValue:" + exitValue); |
| } else { |
| log.info("hook[" + getName() + "] exitValue:" + exitValue); |
| } |
| |
| BufferedReader br = |
| new BufferedReader(new StringReader(result.getOutput())); |
| try { |
| String line; |
| while ((line = br.readLine()) != null) { |
| log.info("hook[" + getName() + "] output: " + line); |
| } |
| } catch (IOException iox) { |
| log.error("Error writing hook output", iox); |
| } |
| } |
| |
| return result; |
| } |
| |
| @Override |
| public String toString() { |
| return "hook " + hook.getFileName(); |
| } |
| } |
| |