Java tutorial
package com.github.trecloux.yeoman; import org.apache.commons.exec.CommandLine; import org.apache.commons.exec.DefaultExecutor; import org.apache.maven.plugin.AbstractMojo; import org.apache.maven.plugin.MojoExecutionException; import org.apache.maven.plugins.annotations.LifecyclePhase; import org.apache.maven.plugins.annotations.Mojo; import org.apache.maven.plugins.annotations.Parameter; import java.io.File; import java.io.IOException; /* * Copyright 2013 Thomas Recloux * * 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. * */ @Mojo(name = "build", defaultPhase = LifecyclePhase.PREPARE_PACKAGE) public class YeomanMojo extends AbstractMojo { @Parameter(defaultValue = "yo", required = true) File yeomanProjectDirectory; @Parameter(defaultValue = "${os.name}", readonly = true) String osName; @Parameter(property = "yo.build.skip", defaultValue = "false") boolean skipBuild; @Parameter(property = "yo.test.skip", defaultValue = "false") boolean skipTests; @Parameter(property = "yo.skip", defaultValue = "false") boolean skip; @Parameter(defaultValue = "install", required = true) String npmInstallArgs; @Parameter(defaultValue = "bower", required = true) String bowerVariant; @Parameter(defaultValue = "install --no-color", required = true) String bowerInstallArgs; @Parameter(defaultValue = "grunt", required = true) String buildTool; @Parameter(defaultValue = "test --no-color", required = true) String testArgs; @Parameter(defaultValue = "build --no-color", required = true) String buildArgs; @Deprecated @Parameter(required = false) String gruntTestArgs; @Deprecated @Parameter(required = false) String gruntBuildArgs; public void execute() throws MojoExecutionException { handleDeprecatedParameters(); if (skip) { getLog().info("Skipping Yeoman Execution"); } else { npmInstall(); bowerInstall(); build(); } } private void handleDeprecatedParameters() { if (gruntTestArgs != null) { testArgs = gruntTestArgs; } if (gruntBuildArgs != null) { buildArgs = gruntBuildArgs; } } void npmInstall() throws MojoExecutionException { logToolVersion("node"); logToolVersion("npm"); logAndExecuteCommand("npm-cache " + npmInstallArgs); } void bowerInstall() throws MojoExecutionException { logToolVersion(bowerVariant); logAndExecuteCommand(bowerVariant + " " + bowerInstallArgs); } void build() throws MojoExecutionException { logToolVersion(buildTool); if (!skipTests) { logAndExecuteCommand(buildTool + " " + testArgs); } if (!skipBuild) { logAndExecuteCommand(buildTool + " " + buildArgs); } } void logToolVersion(final String toolName) throws MojoExecutionException { getLog().info(toolName + " version :"); executeCommand(toolName + " --version"); } void logAndExecuteCommand(String command) throws MojoExecutionException { logCommand(command); executeCommand(command); } void logCommand(String command) { getLog().info("--------------------------------------"); getLog().info(" " + command.toUpperCase()); getLog().info("--------------------------------------"); } void executeCommand(String command) throws MojoExecutionException { try { if (isWindows()) { command = "cmd /c " + command; } CommandLine cmdLine = CommandLine.parse(command); DefaultExecutor executor = new DefaultExecutor(); executor.setWorkingDirectory(yeomanProjectDirectory); executor.execute(cmdLine); } catch (IOException e) { throw new MojoExecutionException("Error during : " + command, e); } } private boolean isWindows() { return osName.startsWith("Windows"); } }