private int parseHunks(final FileHeader fh, int c, final int end) {
final byte[] buf = fh.buf;
while (c < end) {
// If we see a file header at this point, we have all of the
// hunks for our current file. We should stop and report back
// with this position so it can be parsed again later.
//
if (match(buf, c, DIFF_GIT) >= 0) break;
if (match(buf, c, DIFF_CC) >= 0) break;
if (match(buf, c, DIFF_COMBINED) >= 0) break;
if (match(buf, c, OLD_NAME) >= 0) break;
if (match(buf, c, NEW_NAME) >= 0) break;
if (isHunkHdr(buf, c, end) == fh.getParentCount()) {
final HunkHeader h = fh.newHunkHeader(c);
h.parseHeader();
c = h.parseBody(this, end);
h.endOffset = c;
fh.addHunk(h);
if (c < end) {
switch (buf[c]) {
case '@':
case 'd':
case '\n':
break;
default:
if (match(buf, c, SIG_FOOTER) < 0) warn(buf, c, JGitText.get().unexpectedHunkTrailer);
}
}
continue;
}
final int eol = nextLF(buf, c);
if (fh.getHunks().isEmpty() && match(buf, c, GIT_BINARY) >= 0) {
fh.patchType = FileHeader.PatchType.GIT_BINARY;
return parseGitBinary(fh, eol, end);
}
if (fh.getHunks().isEmpty()
&& BIN_TRAILER.length < eol - c
&& match(buf, eol - BIN_TRAILER.length, BIN_TRAILER) >= 0
&& matchAny(buf, c, BIN_HEADERS)) {
// The patch is a binary file diff, with no deltas.
//
fh.patchType = FileHeader.PatchType.BINARY;
return eol;
}
// Skip this line and move to the next. Its probably garbage
// after the last hunk of a file.
//
c = eol;
}
if (fh.getHunks().isEmpty()
&& fh.getPatchType() == FileHeader.PatchType.UNIFIED
&& !fh.hasMetaDataChanges()) {
// Hmm, an empty patch? If there is no metadata here we
// really have a binary patch that we didn't notice above.
//
fh.patchType = FileHeader.PatchType.BINARY;
}
return c;
}
