如何用jgit做相當於“git diff --name-status”的操作？

Question

我想獲取修訂版XXXXXX和HEAD之間已更改/添加/刪除文件的列表。 這是我到目前為止：

String oldHash = "a97e5553e37a25bd1a3c99eab303145baed08dbd";
Git git = Git.open(new File("/tmp/jgit"));
Repository repository = git.getRepository();
ObjectId old = repository.resolve(oldHash);
ObjectId head = repository.resolve("HEAD");

// how do i get the trees from the obj. id?
List<<DiffEntry> diffs = git.diff().setNewTree(null).setOldTree(null).call();

for(DiffEntry diff : diffs) {
    // do stuff
}

這是正確的方法，如果是這樣，我如何獲得git.diff（）所需的樹？

Answer 1

您可以通過調用獲取HEAD和散列的樹ID：

ObjectId head = repository.resolve("HEAD^{tree}");

並為修訂版ID：

ObjectId old = repository.resolve(oldHash + "^{tree}");

獲得樹ID后，您可以創建樹迭代器並獲取差異：

ObjectReader reader = repository.newObjectReader();
CanonicalTreeParser oldTreeIter = new CanonicalTreeParser();
oldTreeIter.reset(reader, oldId);
CanonicalTreeParser newTreeIter = new CanonicalTreeParser();
newTreeIter.reset(reader, headId);
List<DiffEntry> diffs= git.diff()
                        .setNewTree(newTreeIter)
                        .setOldTree(oldTreeIter)
                        .call();