/**
* Gets info of the given commit and checks if it was a RENAME. If yes, returns the older file
* path, which file was renamed from. If it's not a rename, returns null.
*/
@Nullable
private static FilePath getFirstCommitRenamePath(
Project project, VirtualFile root, String commit, FilePath filePath) throws VcsException {
// 'git show -M --name-status <commit hash>' returns the information about commit and detects
// renames.
// NB: we can't specify the filepath, because then rename detection will work only with the
// '--follow' option, which we don't wanna use.
final GitSimpleHandler h = new GitSimpleHandler(project, root, GitCommand.SHOW);
final GitLogParser parser =
new GitLogParser(project, GitLogParser.NameStatus.STATUS, HASH, COMMIT_TIME, SHORT_PARENTS);
h.setNoSSH(true);
h.setStdoutSuppressed(true);
h.addParameters("-M", "--name-status", parser.getPretty(), "--encoding=UTF-8", commit);
h.endOptions();
final String output = h.run();
final List<GitLogRecord> records = parser.parse(output);
if (records.isEmpty()) return null;
// we have information about all changed files of the commit. Extracting information about the
// file we need.
final List<Change> changes = records.get(0).parseChanges(project, root);
for (Change change : changes) {
if ((change.isMoved() || change.isRenamed())
&& filePath.equals(change.getAfterRevision().getFile())) {
return change.getBeforeRevision().getFile();
}
}
return null;
}
/**
* Get history for the file
*
* @param project the context project
* @param path the file path
* @return the list of the revisions
* @throws VcsException if there is problem with running git
*/
public static List<VcsFileRevision> history(
final Project project, FilePath path, final VirtualFile root, final String... parameters)
throws VcsException {
final List<VcsFileRevision> rc = new ArrayList<VcsFileRevision>();
final List<VcsException> exceptions = new ArrayList<VcsException>();
history(
project,
path,
root,
new Consumer<GitFileRevision>() {
@Override
public void consume(GitFileRevision gitFileRevision) {
rc.add(gitFileRevision);
}
},
new Consumer<VcsException>() {
@Override
public void consume(VcsException e) {
exceptions.add(e);
}
},
parameters);
if (!exceptions.isEmpty()) {
throw exceptions.get(0);
}
return rc;
}
/**
* Get current revision for the file under git
*
* @param project a project
* @param filePath a file path
* @return a revision number or null if the file is unversioned or new
* @throws VcsException if there is problem with running git
*/
@Nullable
public static ItemLatestState getLastRevision(final Project project, FilePath filePath)
throws VcsException {
VirtualFile root = GitUtil.getGitRoot(filePath);
GitBranch c = GitBranch.current(project, root);
GitBranch t = c == null ? null : c.tracked(project, root);
if (t == null) {
return new ItemLatestState(getCurrentRevision(project, filePath, null), true, false);
}
filePath = getLastCommitName(project, filePath);
GitSimpleHandler h = new GitSimpleHandler(project, root, GitCommand.LOG);
GitLogParser parser =
new GitLogParser(project, GitLogParser.NameStatus.STATUS, HASH, COMMIT_TIME, SHORT_PARENTS);
h.setNoSSH(true);
h.setSilent(true);
h.addParameters("-n1", parser.getPretty(), "--name-status", t.getFullName());
h.endOptions();
h.addRelativePaths(filePath);
String result = h.run();
if (result.length() == 0) {
return null;
}
GitLogRecord record = parser.parseOneRecord(result);
if (record == null) {
return null;
}
final List<Change> changes = record.parseChanges(project, root);
boolean exists = !FileStatus.DELETED.equals(changes.get(0).getFileStatus());
record.setUsedHandler(h);
return new ItemLatestState(
new GitRevisionNumber(record.getHash(), record.getDate()), exists, false);
}
@Nullable
public static Pair<AbstractHash, AbstractHash> getStashTop(
@NotNull Project project, @NotNull VirtualFile root) throws VcsException {
GitSimpleHandler h = new GitSimpleHandler(project, root, GitCommand.STASH.readLockingCommand());
GitLogParser parser = new GitLogParser(project, SHORT_HASH, SHORT_PARENTS);
h.setSilent(true);
h.setNoSSH(true);
h.addParameters("list");
h.addParameters("-n1");
h.addParameters(parser.getPretty());
String out;
h.setCharset(Charset.forName(GitConfigUtil.getLogEncoding(project, root)));
out = h.run();
final List<GitLogRecord> gitLogRecords = parser.parse(out);
for (GitLogRecord gitLogRecord : gitLogRecords) {
ProgressManager.checkCanceled();
GitSimpleHandler h1 = new GitSimpleHandler(project, root, GitCommand.LOG);
GitLogParser parser1 = new GitLogParser(project, SHORT_HASH, SHORT_PARENTS, SUBJECT);
h1.setSilent(true);
h1.setNoSSH(true);
h1.addParameters("-n1");
h1.addParameters(parser1.getPretty());
// h1.endOptions();
h1.addParameters(gitLogRecord.getShortHash());
String out1;
out1 = h1.run();
final List<GitLogRecord> gitLogRecords1 = parser1.parse(out1);
assert gitLogRecords1.size() == 1;
final GitLogRecord logRecord = gitLogRecords1.get(0);
final String[] parentsShortHashes = logRecord.getParentsShortHashes();
String indexCommit = null;
// heuristics
if (parentsShortHashes.length == 2) {
if (logRecord.getSubject().contains(parentsShortHashes[0])) {
indexCommit = parentsShortHashes[1];
}
if (logRecord.getSubject().contains(parentsShortHashes[1])) {
indexCommit = parentsShortHashes[0];
}
}
return new Pair<AbstractHash, AbstractHash>(
AbstractHash.create(gitLogRecord.getShortHash()),
indexCommit == null ? null : AbstractHash.create(indexCommit));
}
return null;
}