/**
* Push a candidate blob onto the generator's traversal stack.
*
* <p>Candidates should be pushed in history order from oldest-to-newest. Applications should push
* the starting commit first, then the index revision (if the index is interesting), and finally
* the working tree copy (if the working tree is interesting).
*
* @param description description of the blob revision, such as "Working Tree".
* @param contents contents of the file.
* @return {@code this}
* @throws IOException the repository cannot be read.
*/
public BlameGenerator push(String description, RawText contents) throws IOException {
if (description == null) description = JGitText.get().blameNotCommittedYet;
BlobCandidate c = new BlobCandidate(description, resultPath);
c.sourceText = contents;
c.regionList = new Region(0, 0, contents.size());
remaining = contents.size();
push(c);
return this;
}
/**
* Returns the list of lines in the specified source file annotated with the source commit
* metadata.
*
* @param repository
* @param blobPath
* @param objectId
* @return list of annotated lines
*/
public static List<AnnotatedLine> blame(Repository repository, String blobPath, String objectId) {
List<AnnotatedLine> lines = new ArrayList<AnnotatedLine>();
try {
ObjectId object;
if (StringUtils.isEmpty(objectId)) {
object = JGitUtils.getDefaultBranch(repository);
} else {
object = repository.resolve(objectId);
}
BlameCommand blameCommand = new BlameCommand(repository);
blameCommand.setFilePath(blobPath);
blameCommand.setStartCommit(object);
BlameResult blameResult = blameCommand.call();
RawText rawText = blameResult.getResultContents();
int length = rawText.size();
for (int i = 0; i < length; i++) {
RevCommit commit = blameResult.getSourceCommit(i);
AnnotatedLine line = new AnnotatedLine(commit, i + 1, rawText.getString(i));
lines.add(line);
}
} catch (Throwable t) {
try {
error(t, repository, "failed to generate blame for {0} {1}!", blobPath, objectId);
} catch (Exception e) {
}
}
return lines;
}
/**
* Get list of hunks
*
* @throws java.io.IOException
*/
public List<Hunk> getHunks() throws IOException {
List<Hunk> hunks = new ArrayList<>();
for (int curIdx = 0; curIdx < editList.size(); ) {
Hunk hunk = new Hunk();
Edit curEdit = editList.get(curIdx);
final int endIdx = findCombinedEnd(editList, curIdx);
final Edit endEdit = editList.get(endIdx);
int aCur = Math.max(0, curEdit.getBeginA() - context);
int bCur = Math.max(0, curEdit.getBeginB() - context);
final int aEnd = Math.min(a.size(), endEdit.getEndA() + context);
final int bEnd = Math.min(b.size(), endEdit.getEndB() + context);
hunk.beginA = aCur;
hunk.endA = aEnd;
hunk.beginB = bCur;
hunk.endB = bEnd;
while (aCur < aEnd || bCur < bEnd) {
if (aCur < curEdit.getBeginA() || endIdx + 1 < curIdx) {
hunk.lines.add(new DiffLine(this, DiffLineType.CONTEXT, aCur, bCur, a.getString(aCur)));
isEndOfLineMissing = checkEndOfLineMissing(a, aCur);
aCur++;
bCur++;
} else if (aCur < curEdit.getEndA()) {
hunk.lines.add(new DiffLine(this, DiffLineType.REMOVE, aCur, bCur, a.getString(aCur)));
isEndOfLineMissing = checkEndOfLineMissing(a, aCur);
aCur++;
} else if (bCur < curEdit.getEndB()) {
hunk.lines.add(new DiffLine(this, DiffLineType.ADD, aCur, bCur, b.getString(bCur)));
isEndOfLineMissing = checkEndOfLineMissing(a, aCur);
bCur++;
}
if (end(curEdit, aCur, bCur) && ++curIdx < editList.size()) curEdit = editList.get(curIdx);
}
hunks.add(hunk);
}
return hunks;
}
private int findLine(int b, String regex) {
String re = regex.substring(1, regex.length() - 1);
if (!re.startsWith("^")) // $NON-NLS-1$
re = ".*" + re; // $NON-NLS-1$
if (!re.endsWith("$")) // $NON-NLS-1$
re = re + ".*"; // $NON-NLS-1$
Pattern p = Pattern.compile(re);
RawText text = blame.getResultContents();
for (int line = b; line < text.size(); line++) {
if (p.matcher(text.getString(line)).matches()) return line;
}
return b;
}
private boolean checkEndOfLineMissing(final RawText text, final int line) {
return line + 1 == text.size() && text.isMissingNewlineAtEnd();
}
