Duplicate file ids from api repo/tree endpoint

General
1

I’m making a call to:

/projects/2/repository/tree?path=helpers&ref=master&recursive=false&per_page=500

where helpers is a directory containing 3 files and another directory. The 3 files are all empty, have a .r extension but different names.

The files id’s are all coming back as e69de29bb2d1d6434b8b29ae775ad8c2e48c5391. If i add some text to one of the files the id changes so i am guessing the hash that makes this id is using the file contents and the extension and not using the name.

Is this a bug? Is there a way round it?

v: gitlab-ce-13.5.4-ce.0.el8.x86_64

have upgraded to 13.6. and the issue is still there

2

This is effectively how Git’s hashing works internally. The filenames are part of tree objects, but the blob IDs they point to only hash the content for their identifier: https://git-scm.com/book/en/v2/Git-Internals-Git-Objects (short excerpt below, but I recommend a full read)

This is how Git stores the content initially — as a single file
per piece of content, named with the SHA-1 checksum of
the content and its header.
[…]
This object type is called a blob.

GitLab’s repository/tree API endpoint is returning the Git repository identifiers directly.

3

interesting, thanks for the detail - will have a read