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yacy_search_server/libbuild/GitRevTask/GitRevTask.java

97 lines
2.7 KiB

import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.revwalk.RevTag;
import org.eclipse.jgit.revwalk.RevWalk;
import org.eclipse.jgit.storage.file.FileRepositoryBuilder;
public class GitRevTask extends org.apache.tools.ant.Task {
private String repoPath;
private String property;
public void setRepoPath(final String repoPath) {
this.repoPath = repoPath;
}
public void setProperty(String property) {
this.property = property;
}
public void execute() {
if (this.property==null || this.property.length() == 0) {
log("svn entries file name property was not set properly",Project.MSG_ERR);
return;
}
String revision = null;
String lastTag = null;
try {
final File src = new File(repoPath);
final Repository repo = new FileRepositoryBuilder().readEnvironment()
.findGitDir(src).build();
final ObjectId head = repo.resolve("HEAD");
final String gitrev = head.getName().substring(0, 8);
final Git git = new Git(repo);
final List<RevTag> tags = git.tagList().call();
final RevWalk walk = new RevWalk(repo);
walk.markStart(walk.parseCommit(head));
int distance = 0;
for (final RevCommit commit : walk) {
for (final RevTag tag : tags) {
if (commit.equals(tag.getObject())) {
lastTag = tag.getShortMessage();
break;
}
}
if (lastTag == null) lastTag = findRev(commit.getFullMessage());
if (lastTag != null || distance++ > 99) break;
}
walk.dispose();
if (lastTag == null) {
revision = "dev" + "-" + gitrev;
} else {
revision = lastTag + "-" + distance + "-" + gitrev;
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Project theProject = getProject();
if (theProject != null) {
theProject.setProperty(this.property, lastTag);
log("Property '" + this.property + "' set to '" + revision + "'", Project.MSG_VERBOSE);
}
}
private String findRev(final String message) {
final Pattern pattern = Pattern.compile("trunk@(\\d{4})\\s+");
final Matcher matcher = pattern.matcher(message);
if (matcher.find()) {
return matcher.group(1);
}
return null;
}
public static void main(String[] args) {
GitRevTask gitRevTask = new GitRevTask();
gitRevTask.setRepoPath("/home/sgaebel/git/yacy.rc1");
gitRevTask.execute();
}
}