Fix NPE in dry run for missing branches

This commit is contained in:
René Pfeuffer
2019-03-11 09:07:57 +01:00
parent b0f95fbcc6
commit ec2aff6aa9
2 changed files with 58 additions and 10 deletions

View File

@@ -62,12 +62,24 @@ public class GitMergeCommand extends AbstractGitCommand implements MergeCommand
try {
Repository repository = context.open();
ResolveMerger merger = (ResolveMerger) MergeStrategy.RECURSIVE.newMerger(repository, true);
return new MergeDryRunCommandResult(merger.merge(repository.resolve(request.getBranchToMerge()), repository.resolve(request.getTargetBranch())));
return new MergeDryRunCommandResult(
merger.merge(
resolveRevisionOrThrowNotFound(repository, request.getBranchToMerge()),
resolveRevisionOrThrowNotFound(repository, request.getTargetBranch())));
} catch (IOException e) {
throw new InternalRepositoryException(context.getRepository(), "could not clone repository for merge", e);
}
}
private ObjectId resolveRevisionOrThrowNotFound(Repository repository, String revision) throws IOException {
ObjectId resolved = repository.resolve(revision);
if (resolved == null) {
throw notFound(entity("revision", revision).in(context.getRepository()));
} else {
return resolved;
}
}
private class MergeWorker {
private final String target;
@@ -110,9 +122,6 @@ public class GitMergeCommand extends AbstractGitCommand implements MergeCommand
private void checkOutTargetAsNewLocalBranch() throws IOException {
try {
ObjectId targetRevision = resolveRevision(target);
if (targetRevision == null) {
throw notFound(entity("revision", target).in(context.getRepository()));
}
clone.checkout().setStartPoint(targetRevision.getName()).setName(target).setCreateBranch(true).call();
} catch (RefNotFoundException e) {
logger.debug("could not checkout target branch {} for merge as local branch", target, e);
@@ -126,9 +135,6 @@ public class GitMergeCommand extends AbstractGitCommand implements MergeCommand
MergeResult result;
try {
ObjectId sourceRevision = resolveRevision(toMerge);
if (sourceRevision == null) {
throw notFound(entity("revision", toMerge).in(context.getRepository()));
}
result = clone.merge()
.setFastForward(FastForwardMode.NO_FF)
.setCommit(false) // we want to set the author manually
@@ -190,10 +196,10 @@ public class GitMergeCommand extends AbstractGitCommand implements MergeCommand
return MergeCommandResult.failure(result.getConflicts().keySet());
}
private ObjectId resolveRevision(String branchToMerge) throws IOException {
ObjectId resolved = clone.getRepository().resolve(branchToMerge);
private ObjectId resolveRevision(String revision) throws IOException {
ObjectId resolved = clone.getRepository().resolve(revision);
if (resolved == null) {
return clone.getRepository().resolve("origin/" + branchToMerge);
return resolveRevisionOrThrowNotFound(clone.getRepository(), "origin/" + revision);
} else {
return resolved;
}

View File

@@ -16,12 +16,14 @@ import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import sonia.scm.NotFoundException;
import sonia.scm.repository.GitRepositoryHandler;
import sonia.scm.repository.Person;
import sonia.scm.repository.PreProcessorUtil;
import sonia.scm.repository.RepositoryManager;
import sonia.scm.repository.api.HookContextFactory;
import sonia.scm.repository.api.MergeCommandResult;
import sonia.scm.repository.api.MergeDryRunCommandResult;
import sonia.scm.user.User;
import java.io.IOException;
@@ -220,6 +222,46 @@ public class GitMergeCommandTest extends AbstractGitCommandTestBase {
assertThat(new String(contentOfFileB)).isEqualTo("b\ncontent from branch\n");
}
@Test(expected = NotFoundException.class)
public void shouldHandleNotExistingSourceBranchInMerge() {
GitMergeCommand command = createCommand();
MergeCommandRequest request = new MergeCommandRequest();
request.setTargetBranch("mergeable");
request.setBranchToMerge("not_existing");
command.merge(request);
}
@Test(expected = NotFoundException.class)
public void shouldHandleNotExistingTargetBranchInMerge() {
GitMergeCommand command = createCommand();
MergeCommandRequest request = new MergeCommandRequest();
request.setTargetBranch("not_existing");
request.setBranchToMerge("master");
command.merge(request);
}
@Test(expected = NotFoundException.class)
public void shouldHandleNotExistingSourceBranchInDryRun() {
GitMergeCommand command = createCommand();
MergeCommandRequest request = new MergeCommandRequest();
request.setTargetBranch("mergeable");
request.setBranchToMerge("not_existing");
command.dryRun(request);
}
@Test(expected = NotFoundException.class)
public void shouldHandleNotExistingTargetBranchInDryRun() {
GitMergeCommand command = createCommand();
MergeCommandRequest request = new MergeCommandRequest();
request.setTargetBranch("not_existing");
request.setBranchToMerge("master");
command.dryRun(request);
}
private GitMergeCommand createCommand() {
return new GitMergeCommand(createContext(), repository, new SimpleGitWorkdirFactory());
}