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/*
* Copyright (c) 2001-2004 Ant-Contrib project. All rights reserved.
*
* 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 net.sf.antcontrib.platform;
import java.io.File;
import java.io.FileOutputStream;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.taskdefs.ExecTask;
import org.apache.tools.ant.types.Commandline;
import org.apache.tools.ant.util.FileUtils;
/**
* A generic front-end for passing "shell lines" to any application which can
* accept a filename containing script input (bash, perl, csh, tcsh, etc.).
* see antcontrib doc for useage
*
* @author stephan beal
*@author peter reilly
*/
public class ShellScriptTask extends ExecTask {
private StringBuffer script = new StringBuffer();
private String shell = null;
private File tmpFile;
private String tmpSuffix = null;
/**
* Adds s to the lines of script code.
*/
public void addText(String s) {
script.append(getProject().replaceProperties(s));
}
/**
* Sets script code to s.
*/
public void setInputString(String s) {
script.append(s);
}
/**
* Sets the shell used to run the script.
* @param shell the shell to use (bash is default)
*/
public void setShell(String shell) {
this.shell = shell;
}
/**
* Sets the shell used to run the script.
* @param shell the shell to use (bash is default)
*/
public void setExecutable(String shell) {
this.shell = shell;
}
/**
* Disallow the command attribute of parent class ExecTask.
* ant.attribute ignore="true"
* @param notUsed not used
* @throws BuildException if called
*/
public void setCommand(Commandline notUsed) {
throw new BuildException("Attribute command is not supported");
}
/**
* Sets the suffix for the tmp file used to
* contain the script.
* This is useful for cmd.exe as one can
* use cmd /c call x.bat
* @param tmpSuffix the suffix to use
*/
public void setTmpSuffix(String tmpSuffix) {
this.tmpSuffix = tmpSuffix;
}
/**
* execute the task
*/
public void execute() throws BuildException {
// Remove per peter's comments. Makes sense.
/*
if (shell == null)
{
// Get the default shell
shell = Platform.getDefaultShell();
// Get the default shell arguments
String args[] = Platform.getDefaultShellArguments();
for (int i=args.length-1;i>=0;i--)
this.cmdl.createArgument(true).setValue(args[i]);
// Get the default script suffix
if (tmpSuffix == null)
tmpSuffix = Platform.getDefaultScriptSuffix();
}
*/
if (shell == null)
throw new BuildException("You must specify a shell to run.");
try {
/* // The following may be used when ant 1.6 is used.
if (tmpSuffix == null)
super.setInputString(script.toString());
else
*/
{
writeScript();
super.createArg().setValue(tmpFile.getAbsolutePath());
}
super.setExecutable(shell);
super.execute();
}
finally {
if (tmpFile != null) {
if (! tmpFile.delete()) {
log("Non-fatal error: could not delete temporary file " +
tmpFile.getAbsolutePath());
}
}
}
}
/**
* Writes the script lines to a temp file.
*/
protected void writeScript() throws BuildException {
FileOutputStream os = null;
try {
FileUtils fileUtils = FileUtils.newFileUtils();
// NB: use File.io.createTempFile whenever jdk 1.2 is allowed
tmpFile = fileUtils.createTempFile("script", tmpSuffix, null);
os = new java.io.FileOutputStream(tmpFile);
String string = script.toString();
os.write(string.getBytes(), 0, string.length());
os.close();
}
catch (Exception e) {
throw new BuildException(e);
}
finally {
try {os.close();} catch (Throwable t) {}
}
}
}
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