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* CruiseControl, a Continuous Integration Toolkit
* Copyright (c) 2001, ThoughtWorks, Inc.
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* Chicago, IL 60661 USA
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package net.sourceforge.cruisecontrol.bootstrappers;
import net.sourceforge.cruisecontrol.Bootstrapper;
import net.sourceforge.cruisecontrol.CruiseControlException;
import net.sourceforge.cruisecontrol.util.Commandline;
import net.sourceforge.cruisecontrol.util.StreamPumper;
import net.sourceforge.cruisecontrol.util.ValidationHelper;
import org.apache.log4j.Logger;
import java.io.File;
import java.io.PrintWriter;
/**
* Since we rely on our build.xml to handle updating our source code, there has
* always been a problem with what happens when the build.xml file itself
* changes. Previous workarounds have included writing a wrapper build.xml that
* will check out the "real" build.xml. This class is a substitute for that
* practice.
*
* The CVSBootstrapper will handle updating a single file from CVS before the
* build begins.
*
* Usage:
*
* <cvsbootstrapper cvsroot="" file=""/>
*
*/
public class CVSBootstrapper implements Bootstrapper {
private static final Logger LOG = Logger.getLogger(CVSBootstrapper.class);
private String localWorkingCopy;
private String filename;
private String cvsroot;
private boolean resetStickyTags = false;
private boolean overwriteChanges = false;
public void setCvsroot(String cvsroot) {
this.cvsroot = cvsroot;
}
public void setFile(String filename) {
this.filename = filename;
}
/**
* Sets the local working copy to use when making calls to CVS.
*
*@param local String relative or absolute path to the local
* working copy of the CVS module which contains the target file.
*/
public void setLocalWorkingCopy(String local) {
localWorkingCopy = local;
}
/**
* Update the specified file.
*/
public void bootstrap() {
try {
Commandline commandLine = buildUpdateCommand();
Process p = commandLine.execute();
final boolean autoFlushOn = true;
StreamPumper errorPumper =
new StreamPumper(p.getErrorStream(), new PrintWriter(System.err, autoFlushOn));
StreamPumper outPumper = new StreamPumper(p.getInputStream(), new PrintWriter(System.out, autoFlushOn));
Thread errorPumperThread = new Thread(errorPumper);
Thread outPumperThread = new Thread(outPumper);
errorPumperThread.start();
outPumperThread.start();
p.waitFor();
errorPumperThread.join();
outPumperThread.join();
p.getInputStream().close();
p.getOutputStream().close();
p.getErrorStream().close();
} catch (Exception e) {
LOG.error("Error executing CVS update command", e);
}
}
public void validate() throws CruiseControlException {
ValidationHelper.assertTrue(filename != null || cvsroot != null || localWorkingCopy != null,
"at least one of 'file', 'cvsroot' or 'localworkingcopy' is required as an attribute for CVSBootstrapper");
if (localWorkingCopy != null) {
File workingDir = new File(localWorkingCopy);
ValidationHelper.assertTrue(workingDir.exists(),
"'localWorkingCopy' must be an existing directory. Was <"
+ localWorkingCopy + ">");
ValidationHelper.assertTrue(workingDir.isDirectory(),
"'localWorkingCopy' must be an existing directory, not a file. Was <"
+ localWorkingCopy + ">");
}
}
protected Commandline buildUpdateCommand() throws CruiseControlException {
Commandline commandLine = new Commandline();
if (localWorkingCopy != null) {
commandLine.setWorkingDirectory(localWorkingCopy);
}
commandLine.setExecutable("cvs");
if (cvsroot != null) {
commandLine.createArgument().setValue("-d");
commandLine.createArgument().setValue(cvsroot);
}
commandLine.createArgument().setValue("update");
StringBuffer flags = new StringBuffer("-dP");
if (resetStickyTags) {
flags.append("A");
}
if (overwriteChanges) {
flags.append("C");
}
commandLine.createArgument().setValue(flags.toString());
if (filename != null) {
commandLine.createArgument().setValue(filename);
}
return commandLine;
}
public void setResetStickyTags(boolean reset) {
resetStickyTags = reset;
}
public void setOverwriteChanges(boolean overwrite) {
overwriteChanges = overwrite;
}
}