| package org.apache.maven.it; |
| |
| /* |
| * 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 java.io.File; |
| import java.io.FileWriter; |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.apache.maven.shared.utils.StringUtils; |
| import org.apache.maven.shared.utils.cli.CommandLineException; |
| import org.apache.maven.shared.utils.cli.CommandLineUtils; |
| import org.apache.maven.shared.utils.cli.Commandline; |
| import org.apache.maven.shared.utils.cli.StreamConsumer; |
| import org.apache.maven.shared.utils.cli.WriterStreamConsumer; |
| import org.apache.maven.shared.utils.io.FileUtils; |
| |
| /** |
| * @author Benjamin Bentmann |
| */ |
| class ForkedLauncher |
| implements MavenLauncher |
| { |
| |
| private final String mavenHome; |
| |
| private final String executable; |
| |
| private final Map<String, String> envVars; |
| |
| public ForkedLauncher( String mavenHome ) |
| { |
| this( mavenHome, Collections.<String, String> emptyMap(), false ); |
| } |
| |
| public ForkedLauncher( String mavenHome, Map<String, String> envVars, boolean debugJvm ) |
| { |
| this.mavenHome = mavenHome; |
| this.envVars = envVars; |
| |
| String script = debugJvm ? "mvnDebug" : "mvn"; |
| |
| if ( mavenHome != null ) |
| { |
| executable = new File( mavenHome, "bin/" + script ).getPath(); |
| } |
| else |
| { |
| executable = script; |
| } |
| } |
| |
| public int run( String[] cliArgs, Map<String, String> envVars, String workingDirectory, File logFile ) |
| throws IOException, LauncherException |
| { |
| Commandline cmd = new Commandline(); |
| |
| cmd.setExecutable( executable ); |
| |
| if ( mavenHome != null ) |
| { |
| cmd.addEnvironment( "M2_HOME", mavenHome ); |
| } |
| |
| if ( envVars != null ) |
| { |
| for ( Map.Entry<String, String> envVar : envVars.entrySet() ) |
| { |
| cmd.addEnvironment( envVar.getKey(), envVar.getValue() ); |
| } |
| } |
| |
| if ( envVars == null || envVars.get( "JAVA_HOME" ) == null ) |
| { |
| cmd.addEnvironment( "JAVA_HOME", System.getProperty( "java.home" ) ); |
| } |
| |
| cmd.addEnvironment( "MAVEN_TERMINATE_CMD", "on" ); |
| |
| cmd.setWorkingDirectory( workingDirectory ); |
| |
| for ( String cliArg : cliArgs ) |
| { |
| cmd.createArg().setValue( cliArg ); |
| } |
| |
| Writer logWriter = new FileWriter( logFile ); |
| |
| StreamConsumer out = new WriterStreamConsumer( logWriter ); |
| |
| StreamConsumer err = new WriterStreamConsumer( logWriter ); |
| |
| try |
| { |
| return CommandLineUtils.executeCommandLine( cmd, out, err ); |
| } |
| catch ( CommandLineException e ) |
| { |
| throw new LauncherException( "Failed to run Maven: " + e.getMessage() + "\n" + cmd, e ); |
| } |
| finally |
| { |
| logWriter.close(); |
| } |
| } |
| |
| public int run( String[] cliArgs, String workingDirectory, File logFile ) |
| throws IOException, LauncherException |
| { |
| return run( cliArgs, envVars, workingDirectory, logFile ); |
| } |
| |
| public String getMavenVersion() |
| throws IOException, LauncherException |
| { |
| File logFile; |
| try |
| { |
| logFile = File.createTempFile( "maven", "log" ); |
| } |
| catch ( IOException e ) |
| { |
| throw new LauncherException( "Error creating temp file", e ); |
| } |
| |
| // disable EMMA runtime controller port allocation, should be harmless if EMMA is not used |
| Map<String, String> envVars = Collections.singletonMap( "MAVEN_OPTS", "-Demma.rt.control=false" ); |
| run( new String[] { "--version" }, envVars, null, logFile ); |
| |
| List<String> logLines = FileUtils.loadFile( logFile ); |
| // noinspection ResultOfMethodCallIgnored |
| logFile.delete(); |
| |
| String version = extractMavenVersion( logLines ); |
| |
| if ( version == null ) |
| { |
| throw new LauncherException( "Illegal Maven output: String 'Maven' not found in the following output:\n" |
| + StringUtils.join( logLines.iterator(), "\n" ) ); |
| } |
| else |
| { |
| return version; |
| } |
| } |
| |
| static String extractMavenVersion( List<String> logLines ) |
| { |
| String version = null; |
| |
| final Pattern mavenVersion = Pattern.compile( "(?i).*Maven.*? ([0-9]\\.\\S*).*" ); |
| |
| for ( Iterator<String> it = logLines.iterator(); version == null && it.hasNext(); ) |
| { |
| String line = it.next(); |
| |
| Matcher m = mavenVersion.matcher( line ); |
| if ( m.matches() ) |
| { |
| version = m.group( 1 ); |
| } |
| } |
| |
| return version; |
| } |
| |
| } |