Java tutorial
package org.apache.maven.scm.provider.git.gitexe.command.add; /* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 org.apache.commons.io.FilenameUtils; import org.apache.maven.scm.ScmException; import org.apache.maven.scm.ScmFile; import org.apache.maven.scm.ScmFileSet; import org.apache.maven.scm.ScmResult; import org.apache.maven.scm.command.add.AbstractAddCommand; import org.apache.maven.scm.command.add.AddScmResult; import org.apache.maven.scm.provider.ScmProviderRepository; import org.apache.maven.scm.provider.git.command.GitCommand; import org.apache.maven.scm.provider.git.gitexe.command.GitCommandLineUtils; import org.apache.maven.scm.provider.git.gitexe.command.status.GitStatusCommand; import org.apache.maven.scm.provider.git.gitexe.command.status.GitStatusConsumer; import org.apache.maven.scm.provider.git.repository.GitScmProviderRepository; import org.codehaus.plexus.util.Os; import org.codehaus.plexus.util.cli.CommandLineUtils; import org.codehaus.plexus.util.cli.Commandline; import java.io.File; import java.net.URI; import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * @author <a href="mailto:struberg@yahoo.de">Mark Struberg</a> */ public class GitAddCommand extends AbstractAddCommand implements GitCommand { /** * {@inheritDoc} */ protected ScmResult executeAddCommand(ScmProviderRepository repo, ScmFileSet fileSet, String message, boolean binary) throws ScmException { GitScmProviderRepository repository = (GitScmProviderRepository) repo; if (fileSet.getFileList().isEmpty()) { throw new ScmException("You must provide at least one file/directory to add"); } AddScmResult result = executeAddFileSet(fileSet); if (result != null) { return result; } // SCM-709: statusCommand uses repositoryRoot instead of workingDirectory, adjust it with relativeRepositoryPath Commandline clRevparse = GitStatusCommand.createRevparseShowToplevelCommand(fileSet); CommandLineUtils.StringStreamConsumer stdout = new CommandLineUtils.StringStreamConsumer(); CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer(); URI relativeRepositoryPath = null; int exitCode; exitCode = GitCommandLineUtils.execute(clRevparse, stdout, stderr, getLogger()); if (exitCode != 0) { // git-status returns non-zero if nothing to do if (getLogger().isInfoEnabled()) { getLogger().info("Could not resolve toplevel"); } } else { relativeRepositoryPath = GitStatusConsumer.resolveURI(stdout.getOutput().trim(), fileSet.getBasedir().toURI()); } // git-add doesn't show single files, but only summary :/ // so we must run git-status and consume the output // borrow a few things from the git-status command Commandline clStatus = GitStatusCommand.createCommandLine(repository, fileSet); GitStatusConsumer statusConsumer = new GitStatusConsumer(getLogger(), fileSet.getBasedir(), relativeRepositoryPath); stderr = new CommandLineUtils.StringStreamConsumer(); exitCode = GitCommandLineUtils.execute(clStatus, statusConsumer, stderr, getLogger()); if (exitCode != 0) { // git-status returns non-zero if nothing to do if (getLogger().isInfoEnabled()) { getLogger().info("nothing added to commit but untracked files present (use \"git add\" to track)"); } } List<ScmFile> changedFiles = new ArrayList<ScmFile>(); // rewrite all detected files to now have status 'checked_in' for (ScmFile scmfile : statusConsumer.getChangedFiles()) { // if a specific fileSet is given, we have to check if the file is really tracked for (File f : fileSet.getFileList()) { if (FilenameUtils.separatorsToUnix(f.getPath()).equals(scmfile.getPath())) { changedFiles.add(scmfile); } } } Commandline cl = createCommandLine(fileSet.getBasedir(), fileSet.getFileList()); return new AddScmResult(cl.toString(), changedFiles); } public static Commandline createCommandLine(File workingDirectory, List<File> files) throws ScmException { Commandline cl = GitCommandLineUtils.getBaseGitCommandLine(workingDirectory, "add"); // use this separator to make clear that the following parameters are files and not revision info. cl.createArg().setValue("--"); GitCommandLineUtils.addTarget(cl, files); return cl; } private AddScmResult executeAddFileSet(ScmFileSet fileSet) throws ScmException { File workingDirectory = fileSet.getBasedir(); List<File> files = fileSet.getFileList(); // command line can be too long for windows so add files individually (see SCM-697) if (Os.isFamily(Os.FAMILY_WINDOWS)) { for (File file : files) { AddScmResult result = executeAddFiles(workingDirectory, Collections.singletonList(file)); if (result != null) { return result; } } } else { AddScmResult result = executeAddFiles(workingDirectory, files); if (result != null) { return result; } } return null; } private AddScmResult executeAddFiles(File workingDirectory, List<File> files) throws ScmException { Commandline cl = createCommandLine(workingDirectory, files); CommandLineUtils.StringStreamConsumer stderr = new CommandLineUtils.StringStreamConsumer(); CommandLineUtils.StringStreamConsumer stdout = new CommandLineUtils.StringStreamConsumer(); int exitCode = GitCommandLineUtils.execute(cl, stdout, stderr, getLogger()); if (exitCode != 0) { return new AddScmResult(cl.toString(), "The git-add command failed.", stderr.getOutput(), false); } return null; } }