GitPython get tree and blob object by sha

Question

I\'m using GitPython with a bare repository and I\'m trying to get specific git object by its SHA. If I used git directly, I would just do this

git ls-tree s         


        

Answer 1

Try this:

   def read_file_from_branch(self, repo, branch, path, charset='ascii'):
            '''
            return the contents of a file in a branch, without checking out the
            branch
            '''
            if branch in repo.heads:
                blob = (repo.heads[branch].commit.tree / path)
                if blob:
                    data = blob.data_stream.read()
                    if charset:
                        return data.decode(charset)
                    return data
            return None

Answer 2

In general, a tree has children which are blobs and more trees. The blobs are files that are direct children of that tree and the other trees are directories that are direction children of that tree.

Accessing the files directly below that tree:

repo.tree().blobs # returns a list of blobs

Accessing the directories directly below that tree:

repo.tree().trees # returns a list of trees

How about looking at the blobs in the subdirectories:

for t in repo.tree().trees:
    print t.blobs

Let's get the path of the first blob from earlier:

repo.tree().blobs[0].path # gives the relative path
repo.tree().blobs[0].abspath # gives the absolute path

Hopefully this gives you a better idea of how to navigate this data structure and how to access the attributes of these objects.

Answer 3

I was looking for this because I had the same issue, and I found a solution:

>>> import binascii
>>> id_to_find = repo.head.commit.tree['README'].hexsha  # For example
>>> id_to_find
"aee35f14ee5515ee98d546a170be60690576db4b"
>>> git.objects.blob.Blob(repo, binascii.a2b_hex(id_to_find))
<git.Blob "aee35f14ee5515ee98d546a170be60690576db4b">

I feel like there should be a way to reference Blob through the repo, but I couldn't find it.