/**
* Construct a tree from a specific listing of file entries.
*
* @param entries the files to include in the tree. The collection does not need to be sorted
* properly and may be empty.
* @return reference to the tree specified by the entry list.
* @throws Exception
*/
public RevTree tree(final DirCacheEntry... entries) throws Exception {
final DirCache dc = DirCache.newInCore();
final DirCacheBuilder b = dc.builder();
for (final DirCacheEntry e : entries) b.add(e);
b.finish();
ObjectId root;
try {
root = dc.writeTree(inserter);
inserter.flush();
} finally {
inserter.release();
}
return pool.lookupTree(root);
}
/**
* Reads a file from the tickets branch.
*
* @param db
* @param file
* @return the file content or null
*/
private String readTicketsFile(Repository db, String file) {
try {
ObjectId treeId = db.resolve(BRANCH + "^{tree}");
if (treeId == null) {
return null;
}
try (RevWalk rw = new RevWalk(db)) {
RevTree tree = rw.lookupTree(treeId);
if (tree != null) {
return JGitUtils.getStringContent(db, tree, file, Constants.ENCODING);
}
}
} catch (IOException e) {
log.error("failed to read " + file, e);
}
return null;
}