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refactor after review

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This commit is contained in:
Eduard Heimbuch
2019-11-08 08:36:00 +01:00
parent e736ae6c50
commit a41f490871
6 changed files with 51 additions and 23 deletions
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22
scm-plugins/scm-git-plugin/src/main/java/sonia/scm/repository/spi/GitFastForwardIfPossible.java
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@@ -10,35 +10,27 @@ import java.io.IOException;
class GitFastForwardIfPossible extends GitMergeStrategy {
private GitMergeStrategy fallbackMerge;
GitFastForwardIfPossible(Git clone, MergeCommandRequest request, GitContext context, Repository repository) {
super(clone, request, context, repository);
fallbackMerge = new GitMergeCommit(clone, request, context, repository);
}
@Override
MergeCommandResult run() throws IOException {
MergeResult fastForwardResult = mergeWithFastForwardMode(MergeCommand.FastForwardMode.FF_ONLY);
MergeResult fastForwardResult = mergeWithFastForwardOnlyMode();
if (fastForwardResult.getMergeStatus().isSuccessful()) {
push();
return MergeCommandResult.success();
} else {
return mergeWithCommit();
return fallbackMerge.run();
}
}
private MergeCommandResult mergeWithCommit() throws IOException {
MergeResult mergeCommitResult = mergeWithFastForwardMode(MergeCommand.FastForwardMode.NO_FF);
if (mergeCommitResult.getMergeStatus().isSuccessful()) {
doCommit();
push();
return MergeCommandResult.success();
} else {
return analyseFailure(mergeCommitResult);
}
}
private MergeResult mergeWithFastForwardMode(MergeCommand.FastForwardMode fastForwardMode) throws IOException {
private MergeResult mergeWithFastForwardOnlyMode() throws IOException {
MergeCommand mergeCommand = getClone().merge();
mergeCommand.setFastForward(fastForwardMode);
mergeCommand.setFastForward(MergeCommand.FastForwardMode.FF_ONLY);
return doMergeInClone(mergeCommand);
}
}

21
scm-plugins/scm-git-plugin/src/main/java/sonia/scm/repository/spi/GitMergeCommand.java
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@@ -12,6 +12,8 @@ import sonia.scm.repository.api.MergeStrategy;
import java.io.IOException;
import java.util.Set;
import static org.eclipse.jgit.merge.MergeStrategy.RECURSIVE;
public class GitMergeCommand extends AbstractGitCommand implements MergeCommand {
private final GitWorkdirFactory workdirFactory;
@@ -33,19 +35,26 @@ public class GitMergeCommand extends AbstractGitCommand implements MergeCommand
}
private MergeCommandResult mergeWithStrategy(MergeCommandRequest request) {
if (request.getMergeStrategy() == MergeStrategy.SQUASH) {
return inClone(clone -> new GitMergeWithSquash(clone, request, context, repository), workdirFactory, request.getTargetBranch());
} else if (request.getMergeStrategy() == MergeStrategy.FAST_FORWARD_IF_POSSIBLE) {
return inClone(clone -> new GitFastForwardIfPossible(clone, request, context, repository), workdirFactory, request.getTargetBranch());
switch(request.getMergeStrategy()) {
case SQUASH:
return inClone(clone -> new GitMergeWithSquash(clone, request, context, repository), workdirFactory, request.getTargetBranch());
case FAST_FORWARD_IF_POSSIBLE:
return inClone(clone -> new GitFastForwardIfPossible(clone, request, context, repository), workdirFactory, request.getTargetBranch());
case MERGE_COMMIT:
return inClone(clone -> new GitMergeCommit(clone, request, context, repository), workdirFactory, request.getTargetBranch());
default:
throw new IllegalArgumentException("unknown merge strategy: " + request.getMergeStrategy());
}
return inClone(clone -> new GitMergeCommit(clone, request, context, repository), workdirFactory, request.getTargetBranch());
}
@Override
public MergeDryRunCommandResult dryRun(MergeCommandRequest request) {
try {
Repository repository = context.open();
ResolveMerger merger = (ResolveMerger) org.eclipse.jgit.merge.MergeStrategy.RECURSIVE.newMerger(repository, true);
ResolveMerger merger = (ResolveMerger) RECURSIVE.newMerger(repository, true);
return new MergeDryRunCommandResult(
merger.merge(
resolveRevisionOrThrowNotFound(repository, request.getBranchToMerge()),

2
scm-plugins/scm-git-plugin/src/main/java/sonia/scm/repository/spi/GitMergeCommit.java
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@@ -16,7 +16,7 @@ class GitMergeCommit extends GitMergeStrategy {
@Override
MergeCommandResult run() throws IOException {
org.eclipse.jgit.api.MergeCommand mergeCommand = getClone().merge();
MergeCommand mergeCommand = getClone().merge();
mergeCommand.setFastForward(MergeCommand.FastForwardMode.NO_FF);
MergeResult result = doMergeInClone(mergeCommand);

3
scm-plugins/scm-git-plugin/src/main/java/sonia/scm/repository/spi/GitMergeWithSquash.java
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@@ -4,6 +4,7 @@ import org.eclipse.jgit.api.Git;
import org.eclipse.jgit.api.MergeResult;
import sonia.scm.repository.Repository;
import sonia.scm.repository.api.MergeCommandResult;
import org.eclipse.jgit.api.MergeCommand;
import java.io.IOException;
@@ -15,7 +16,7 @@ class GitMergeWithSquash extends GitMergeStrategy {
@Override
MergeCommandResult run() throws IOException {
org.eclipse.jgit.api.MergeCommand mergeCommand = getClone().merge();
MergeCommand mergeCommand = getClone().merge();
mergeCommand.setSquash(true);
MergeResult result = doMergeInClone(mergeCommand);

23
scm-plugins/scm-git-plugin/src/test/java/sonia/scm/repository/spi/GitMergeCommandTest.java
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@@ -287,6 +287,29 @@ public class GitMergeCommandTest extends AbstractGitCommandTestBase {
assertThat(mergeCommit.getId()).isEqualTo(featureBranchHead);
}
@Test
public void shouldDoMergeCommitIfFastForwardIsNotPossible() throws IOException, GitAPIException {
GitMergeCommand command = createCommand();
MergeCommandRequest request = new MergeCommandRequest();
request.setTargetBranch("master");
request.setBranchToMerge("mergeable");
request.setMergeStrategy(MergeStrategy.FAST_FORWARD_IF_POSSIBLE);
request.setAuthor(new Person("Dirk Gently", "dirk@holistic.det"));
MergeCommandResult mergeCommandResult = command.merge(request);
assertThat(mergeCommandResult.isSuccess()).isTrue();
Repository repository = createContext().open();
Iterable<RevCommit> commits = new Git(repository).log().add(repository.resolve("master")).setMaxCount(1).call();
RevCommit mergeCommit = commits.iterator().next();
PersonIdent mergeAuthor = mergeCommit.getAuthorIdent();
String message = mergeCommit.getFullMessage();
assertThat(mergeAuthor.getName()).isEqualTo("Dirk Gently");
assertThat(mergeAuthor.getEmailAddress()).isEqualTo("dirk@holistic.det");
assertThat(message).contains("master", "mergeable");
}
@Test(expected = NotFoundException.class)
public void shouldHandleNotExistingSourceBranchInMerge() {
GitMergeCommand command = createCommand();