/**
* Given a Revision, show it as if it were an entry from git whatchanged, so that it can be parsed
* by GitChangeLogParser.
*
* @param r The Revision object
* @return The git show output, in List form.
* @throws GitException if errors were encountered running git show.
*/
public List<String> showRevision(Revision r) throws GitException {
String revName = r.getSha1String();
String result = "";
if (revName != null) {
result = launchCommand("show", "--no-abbrev", "--format=raw", "-M", "--raw", revName);
}
List<String> revShow = new ArrayList<String>();
if (result != null) {
revShow = new ArrayList<String>(Arrays.asList(result.split("\\n")));
}
return revShow;
}
@Override
public boolean checkout(
final AbstractBuild build,
Launcher launcher,
final FilePath workspace,
final BuildListener listener,
File changelogFile)
throws IOException, InterruptedException {
listener
.getLogger()
.println(
"Checkout:"
+ workspace.getName()
+ " / "
+ workspace.getRemote()
+ " - "
+ workspace.getChannel());
listener.getLogger().println("Using strategy: " + choosingStrategy);
final String projectName = build.getProject().getName();
final int buildNumber = build.getNumber();
final String gitExe = getDescriptor().getGitExe();
final String buildnumber = "hudson-" + projectName + "-" + buildNumber;
final BuildData buildData = getBuildData(build.getPreviousBuild(), true);
if (buildData != null && buildData.lastBuild != null) {
listener.getLogger().println("Last Built Revision: " + buildData.lastBuild.revision);
}
final EnvVars environment = build.getEnvironment(listener);
final String singleBranch = getSingleBranch(build);
Revision tempParentLastBuiltRev = null;
if (build instanceof MatrixRun) {
MatrixBuild parentBuild = ((MatrixRun) build).getParentBuild();
if (parentBuild != null) {
BuildData parentBuildData = parentBuild.getAction(BuildData.class);
if (parentBuildData != null) {
tempParentLastBuiltRev = parentBuildData.getLastBuiltRevision();
}
}
}
final Revision parentLastBuiltRev = tempParentLastBuiltRev;
final Revision revToBuild =
workspace.act(
new FileCallable<Revision>() {
private static final long serialVersionUID = 1L;
public Revision invoke(File localWorkspace, VirtualChannel channel)
throws IOException {
FilePath ws = new FilePath(localWorkspace);
listener
.getLogger()
.println(
"Checkout:"
+ ws.getName()
+ " / "
+ ws.getRemote()
+ " - "
+ ws.getChannel());
IGitAPI git = new GitAPI(gitExe, ws, listener, environment);
if (git.hasGitRepo()) {
// It's an update
listener.getLogger().println("Fetching changes from the remote Git repository");
for (RemoteConfig remoteRepository : getRepositories()) {
fetchFrom(git, localWorkspace, listener, remoteRepository);
}
} else {
listener.getLogger().println("Cloning the remote Git repository");
// Go through the repositories, trying to clone from one
//
boolean successfullyCloned = false;
for (RemoteConfig rc : remoteRepositories) {
try {
git.clone(rc);
successfullyCloned = true;
break;
} catch (GitException ex) {
listener.error(
"Error cloning remote repo '%s' : %s", rc.getName(), ex.getMessage());
if (ex.getCause() != null) {
listener.error("Cause: %s", ex.getCause().getMessage());
}
// Failed. Try the next one
listener.getLogger().println("Trying next repository");
}
}
if (!successfullyCloned) {
listener.error("Could not clone from a repository");
throw new GitException("Could not clone");
}
// Also do a fetch
for (RemoteConfig remoteRepository : getRepositories()) {
fetchFrom(git, localWorkspace, listener, remoteRepository);
}
if (git.hasGitModules()) {
git.submoduleInit();
git.submoduleUpdate();
}
}
if (parentLastBuiltRev != null) return parentLastBuiltRev;
IBuildChooser buildChooser = createBuildChooser(git, listener, buildData);
Collection<Revision> candidates =
buildChooser.getCandidateRevisions(false, singleBranch);
if (candidates.size() == 0) return null;
return candidates.iterator().next();
}
});
if (revToBuild == null) {
// getBuildCandidates should make the last item the last build, so a re-build
// will build the last built thing.
listener.error("Nothing to do");
return false;
}
listener.getLogger().println("Commencing build of " + revToBuild);
environment.put(GIT_COMMIT, revToBuild.getSha1String());
Object[] returnData; // Changelog, BuildData
if (mergeOptions.doMerge()) {
if (!revToBuild.containsBranchName(mergeOptions.getRemoteBranchName())) {
returnData =
workspace.act(
new FileCallable<Object[]>() {
private static final long serialVersionUID = 1L;
public Object[] invoke(File localWorkspace, VirtualChannel channel)
throws IOException {
IGitAPI git =
new GitAPI(gitExe, new FilePath(localWorkspace), listener, environment);
IBuildChooser buildChooser = createBuildChooser(git, listener, buildData);
// Do we need to merge this revision onto MergeTarget
// Only merge if there's a branch to merge that isn't
// us..
listener
.getLogger()
.println(
"Merging " + revToBuild + " onto " + mergeOptions.getMergeTarget());
// checkout origin/blah
ObjectId target = git.revParse(mergeOptions.getRemoteBranchName());
git.checkout(target.name());
try {
git.merge(revToBuild.getSha1().name());
} catch (Exception ex) {
listener
.getLogger()
.println(
"Branch not suitable for integration as it does not merge cleanly");
// We still need to tag something to prevent
// repetitive builds from happening - tag the
// candidate
// branch.
git.checkout(revToBuild.getSha1().name());
git.tag(buildnumber, "Hudson Build #" + buildNumber);
buildChooser.revisionBuilt(revToBuild, buildNumber, Result.FAILURE);
return new Object[] {null, buildChooser.getData()};
}
if (git.hasGitModules()) {
git.submoduleUpdate();
}
// Tag the successful merge
git.tag(buildnumber, "Hudson Build #" + buildNumber);
StringBuilder changeLog = new StringBuilder();
if (revToBuild.getBranches().size() > 0)
listener
.getLogger()
.println("Warning : There are multiple branch changesets here");
try {
for (Branch b : revToBuild.getBranches()) {
Build lastRevWas =
buildData == null ? null : buildData.getLastBuildOfBranch(b.getName());
if (lastRevWas != null) {
changeLog.append(
putChangelogDiffsIntoFile(
git,
b.name,
lastRevWas.getSHA1().name(),
revToBuild.getSha1().name()));
}
}
} catch (GitException ge) {
changeLog.append("Unable to retrieve changeset");
}
Build buildData = buildChooser.revisionBuilt(revToBuild, buildNumber, null);
GitUtils gu = new GitUtils(listener, git);
buildData.mergeRevision = gu.getRevisionForSHA1(target);
// Fetch the diffs into the changelog file
return new Object[] {changeLog.toString(), buildChooser.getData()};
}
});
BuildData returningBuildData = (BuildData) returnData[1];
build.addAction(returningBuildData);
return changeLogResult((String) returnData[0], changelogFile);
}
}
// No merge
returnData =
workspace.act(
new FileCallable<Object[]>() {
private static final long serialVersionUID = 1L;
public Object[] invoke(File localWorkspace, VirtualChannel channel)
throws IOException {
IGitAPI git =
new GitAPI(gitExe, new FilePath(localWorkspace), listener, environment);
IBuildChooser buildChooser = createBuildChooser(git, listener, buildData);
// Straight compile-the-branch
listener.getLogger().println("Checking out " + revToBuild);
git.checkout(revToBuild.getSha1().name());
// if( compileSubmoduleCompares )
if (doGenerateSubmoduleConfigurations) {
SubmoduleCombinator combinator =
new SubmoduleCombinator(git, listener, localWorkspace, submoduleCfg);
combinator.createSubmoduleCombinations();
}
if (git.hasGitModules()) {
git.submoduleInit();
git.submoduleSync();
// Git submodule update will only 'fetch' from where it
// regards as 'origin'. However,
// it is possible that we are building from a
// RemoteRepository with changes
// that are not in 'origin' AND it may be a new module that
// we've only just discovered.
// So - try updating from all RRs, then use the submodule
// Update to do the checkout
for (RemoteConfig remoteRepository : getRepositories()) {
fetchFrom(git, localWorkspace, listener, remoteRepository);
}
// Update to the correct checkout
git.submoduleUpdate();
}
// Tag the successful merge
git.tag(buildnumber, "Hudson Build #" + buildNumber);
StringBuilder changeLog = new StringBuilder();
int histories = 0;
try {
for (Branch b : revToBuild.getBranches()) {
Build lastRevWas =
buildData == null ? null : buildData.getLastBuildOfBranch(b.getName());
if (lastRevWas != null) {
listener.getLogger().println("Recording changes in branch " + b.getName());
changeLog.append(
putChangelogDiffsIntoFile(
git,
b.name,
lastRevWas.getSHA1().name(),
revToBuild.getSha1().name()));
histories++;
} else {
listener.getLogger().println("No change to record in branch " + b.getName());
}
}
} catch (GitException ge) {
changeLog.append("Unable to retrieve changeset");
}
if (histories > 1)
listener
.getLogger()
.println("Warning : There are multiple branch changesets here");
buildChooser.revisionBuilt(revToBuild, buildNumber, null);
if (getClean()) {
listener.getLogger().println("Cleaning workspace");
git.clean();
}
// Fetch the diffs into the changelog file
return new Object[] {changeLog.toString(), buildChooser.getData()};
}
});
build.addAction((Action) returnData[1]);
return changeLogResult((String) returnData[0], changelogFile);
}
