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From dona...@apache.org
Subject cvs commit: jakarta-ant/proposal/myrmidon/src/main/org/apache/tools/ant/taskdefs/exec PerlScriptCommandLauncher.java MacCommandLauncher.java
Date Wed, 19 Dec 2001 11:48:26 GMT
donaldp     01/12/19 03:48:26

  Added:       proposal/myrmidon/src/main/org/apache/tools/ant/taskdefs/exec
                        PerlScriptCommandLauncher.java
                        MacCommandLauncher.java
  Log:
  Move command launchers to top level classes. Inner classes are evil.
  
  Revision  Changes    Path
  1.1                  jakarta-ant/proposal/myrmidon/src/main/org/apache/tools/ant/taskdefs/exec/PerlScriptCommandLauncher.java
  
  Index: PerlScriptCommandLauncher.java
  ===================================================================
  /*
   * Copyright (C) The Apache Software Foundation. All rights reserved.
   *
   * This software is published under the terms of the Apache Software License
   * version 1.1, a copy of which has been included  with this distribution in
   * the LICENSE.txt file.
   */
  package org.apache.tools.ant.taskdefs.exec;
  
  import org.apache.tools.ant.Project;
  import org.apache.myrmidon.api.TaskException;
  import org.apache.avalon.excalibur.io.FileUtil;
  import java.io.File;
  import java.io.IOException;
  
  /**
   * A command launcher that uses an auxiliary perl script to launch commands
   * in directories other than the current working directory.
   */
  class PerlScriptCommandLauncher
      extends CommandLauncherProxy
  {
      private String _script;
  
      PerlScriptCommandLauncher( String script, CommandLauncher launcher )
      {
          super( launcher );
          _script = script;
      }
  
      /**
       * Launches the given command in a new process, in the given working
       * directory
       *
       * @param project Description of Parameter
       * @param cmd Description of Parameter
       * @param env Description of Parameter
       * @param workingDir Description of Parameter
       * @return Description of the Returned Value
       * @exception IOException Description of Exception
       */
      public Process exec( Project project, String[] cmd, String[] env, File workingDir )
          throws IOException, TaskException
      {
          if( project == null )
          {
              if( workingDir == null )
              {
                  return exec( project, cmd, env );
              }
              throw new IOException( "Cannot locate antRun script: No project provided" );
          }
  
          // Locate the auxiliary script
          String antHome = project.getProperty( "ant.home" );
          if( antHome == null )
          {
              throw new IOException( "Cannot locate antRun script: Property 'ant.home' not
found" );
          }
          String antRun = FileUtil.
              resolveFile( project.getBaseDir(), antHome + File.separator + _script ).toString();
  
          // Build the command
          File commandDir = workingDir;
          if( workingDir == null && project != null )
          {
              commandDir = project.getBaseDir();
          }
  
          String[] newcmd = new String[ cmd.length + 3 ];
          newcmd[ 0 ] = "perl";
          newcmd[ 1 ] = antRun;
          newcmd[ 2 ] = commandDir.getAbsolutePath();
          System.arraycopy( cmd, 0, newcmd, 3, cmd.length );
  
          return exec( project, newcmd, env );
      }
  }
  
  
  
  1.1                  jakarta-ant/proposal/myrmidon/src/main/org/apache/tools/ant/taskdefs/exec/MacCommandLauncher.java
  
  Index: MacCommandLauncher.java
  ===================================================================
  /*
   * Copyright (C) The Apache Software Foundation. All rights reserved.
   *
   * This software is published under the terms of the Apache Software License
   * version 1.1, a copy of which has been included  with this distribution in
   * the LICENSE.txt file.
   */
  package org.apache.tools.ant.taskdefs.exec;
  
  import org.apache.tools.ant.Project;
  import org.apache.myrmidon.api.TaskException;
  import java.io.File;
  import java.io.IOException;
  
  /**
   * A command launcher for Mac that uses a dodgy mechanism to change working
   * directory before launching commands.
   */
  class MacCommandLauncher
      extends CommandLauncherProxy
  {
      MacCommandLauncher( CommandLauncher launcher )
      {
          super( launcher );
      }
  
      /**
       * Launches the given command in a new process, in the given working
       * directory
       *
       * @param project Description of Parameter
       * @param cmd Description of Parameter
       * @param env Description of Parameter
       * @param workingDir Description of Parameter
       * @return Description of the Returned Value
       * @exception IOException Description of Exception
       */
      public Process exec( Project project, String[] cmd, String[] env, File workingDir )
          throws IOException, TaskException
      {
          if( workingDir == null )
          {
              return exec( project, cmd, env );
          }
  
          System.getProperties().put( "user.dir", workingDir.getAbsolutePath() );
          try
          {
              return exec( project, cmd, env );
          }
          finally
          {
              System.getProperties().put( "user.dir", Execute.antWorkingDirectory );
          }
      }
  }
  
  
  

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