org.eclipse.jgit.patch.FileHeader Java Examples

The following examples show how to use org.eclipse.jgit.patch.FileHeader. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: GitServiceImpl.java    From RefactoringMiner with MIT License 6 votes vote down vote up 
@Override
public Churn churn(Repository repository, RevCommit currentCommit) throws Exception {
	if (currentCommit.getParentCount() > 0) {
       	ObjectId oldTree = currentCommit.getParent(0).getTree();
        ObjectId newTree = currentCommit.getTree();
       	final TreeWalk tw = new TreeWalk(repository);
       	tw.setRecursive(true);
       	tw.addTree(oldTree);
       	tw.addTree(newTree);
       	
       	List<DiffEntry> diffs = DiffEntry.scan(tw);
       	DiffFormatter diffFormatter = new DiffFormatter(DisabledOutputStream.INSTANCE);
   		diffFormatter.setRepository(repository);
   		diffFormatter.setContext(0);
   		
       	int addedLines = 0;
   		int deletedLines = 0;
       	for (DiffEntry entry : diffs) {
   			FileHeader header = diffFormatter.toFileHeader(entry);
           	List<? extends HunkHeader> hunks = header.getHunks();
           	for (HunkHeader hunkHeader : hunks) {
           		for (Edit edit : hunkHeader.toEditList()) {
   					if (edit.getType() == Type.INSERT) {
   						addedLines += edit.getLengthB();
   					} else if (edit.getType() == Type.DELETE) {
   						deletedLines += edit.getLengthA();
   					} else if (edit.getType() == Type.REPLACE) {
   						deletedLines += edit.getLengthA();
   						addedLines += edit.getLengthB();
   					}
   				}
           	}
       	}
       	diffFormatter.close();
       	return new Churn(addedLines, deletedLines);
	}
	return null;
}
Example #2
Source File: CommitUtil.java    From SZZUnleashed with MIT License 5 votes vote down vote up 
/**
 * Extract a list containing all Edits that exists between two revisions.
 *
 * @param entry a diffentry which contains information about a diff between two revisions.
 * @return an EditList containing all Edits.
 */
public EditList getDiffEditList(DiffEntry entry) throws IOException, GitAPIException {
  DiffFormatter form = new DiffFormatter(DisabledOutputStream.INSTANCE);
  form.setRepository(this.git.getRepository());

  FileHeader fh = form.toFileHeader(entry);
  return fh.toEditList();
}
Example #3
Source File: GitIndexEntry.java    From git-code-format-maven-plugin with MIT License 5 votes vote down vote up 
private LineRanges computeLineRanges(DiffEntry diffEntry) {
  DiffFormatter diffFormatter = new DiffFormatter(NullOutputStream.INSTANCE);
  diffFormatter.setRepository(repository);

  try {
    FileHeader fileHeader = diffFormatter.toFileHeader(diffEntry);
    return fileHeader.getHunks().stream()
        .map(HunkHeader.class::cast)
        .map(this::computeLineRanges)
        .reduce(LineRanges::concat)
        .orElse(LineRanges.all());
  } catch (IOException e) {
    throw new MavenGitCodeFormatException(e);
  }
}
Example #4
Source File: GitAnalyzer.java    From chuidiang-ejemplos with GNU Lesser General Public License v3.0 5 votes vote down vote up 
private String getPath (FileHeader header){
    if (DiffEntry.ChangeType.DELETE.equals(header.getChangeType())){
        return header.getOldPath();
    }
    if (DiffEntry.ChangeType.ADD.equals(header.getChangeType())){
        return header.getNewPath();
    }
    if (header.getOldPath().equals(header.getNewPath())){
        return header.getOldPath();
    }
    return (header.getOldPath()+" -> "+header.getNewPath());
}
Example #5
Source File: GitHelper.java    From repairnator with MIT License 4 votes vote down vote up 
public void computePatchStats(JobStatus jobStatus, Git git, RevCommit headRev, RevCommit commit) {
    try {
        ObjectReader reader = git.getRepository().newObjectReader();
        CanonicalTreeParser oldTreeIter = new CanonicalTreeParser();
        oldTreeIter.reset(reader, headRev.getTree());
        CanonicalTreeParser newTreeIter = new CanonicalTreeParser();
        newTreeIter.reset(reader, commit.getTree());

        DiffFormatter diffFormatter = new DiffFormatter(DisabledOutputStream.INSTANCE);
        diffFormatter.setRepository(git.getRepository());
        diffFormatter.setContext(0);
        List<DiffEntry> entries = diffFormatter.scan(newTreeIter, oldTreeIter);

        int nbLineAdded = 0;
        int nbLineDeleted = 0;
        Set<String> changedFiles = new HashSet<>();
        Set<String> addedFiles = new HashSet<>();
        Set<String> deletedFiles = new HashSet<>();

        for (DiffEntry entry : entries) {
            String path;
            if (entry.getChangeType() == DiffEntry.ChangeType.DELETE) {
                path = entry.getOldPath();
            } else {
                path = entry.getNewPath();
            }
            if (!jobStatus.isCreatedFileToPush(path) && path.endsWith(".java")) {
                if (entry.getChangeType() == DiffEntry.ChangeType.MODIFY ||
                        entry.getChangeType() == DiffEntry.ChangeType.RENAME) {
                    changedFiles.add(path);
                } else if (entry.getChangeType() == DiffEntry.ChangeType.ADD ||
                        entry.getChangeType() == DiffEntry.ChangeType.COPY) {
                    addedFiles.add(path);
                } else if (entry.getChangeType() == DiffEntry.ChangeType.DELETE) {
                    deletedFiles.add(path);
                }

                FileHeader fileHeader = diffFormatter.toFileHeader(entry);
                List<? extends HunkHeader> hunks = fileHeader.getHunks();
                for (HunkHeader hunk : hunks) {
                    EditList edits = hunk.toEditList();
                    for (Edit edit : edits) {
                        switch (edit.getType()) {
                            case INSERT:
                                nbLineAdded += edit.getLengthB();
                                break;

                            case DELETE:
                                nbLineDeleted += edit.getLengthA();
                                break;

                            case REPLACE:
                                int diff = edit.getLengthA() - edit.getLengthB();
                                if (diff > 0) {
                                    nbLineAdded += edit.getLengthA();
                                    nbLineDeleted += edit.getLengthB();
                                } else {
                                    nbLineDeleted += edit.getLengthA();
                                    nbLineAdded += edit.getLengthB();
                                }
                                break;

                            case EMPTY:
                                break;
                        }
                    }
                }
            }
        }

        PatchDiff patchDiff = jobStatus.getProperties().getPatchDiff();
        patchDiff.getFiles().setNumberAdded(addedFiles.size());
        patchDiff.getFiles().setNumberChanged(changedFiles.size());
        patchDiff.getFiles().setNumberDeleted(deletedFiles.size());
        patchDiff.getLines().setNumberAdded(nbLineAdded);
        patchDiff.getLines().setNumberDeleted(nbLineDeleted);
    } catch (IOException e) {
        this.getLogger().error("Error while computing stat on the patch.", e);
    }
}