Linked attachments on the issues/notes aren't transferred

[georgearmenta]

Hello @matm,

When I run gitlab-copy to transfer between different instances/hosts of Gitlab, linked attachments on the issues or notes aren't transferred.

Also, this comment points out the same problem: #15 (comment)

[matm]

Interesting, thanks for reporting.

[matm]

Related: https://gitlab.com/gitlab-org/gitlab/-/issues/17303

[matm]

Hum ... https://gitlab.com/gitlab-org/gitlab/-/issues/24155. Still open for many years and is not fixed yet apparently.

[matm]

@georgearmenta After some investigation I am not sure how to fix this: it used to work a few years ago because every issue's note came with an Attachment field which is now deprecated. From the 2 gitlab issues I added in the comments yesterday, GitLab's API appears to have an upload endpoint (to upload files attached to an issue) but nothing to download them.

This basic resource download feature is not available, which is very surprising. Even large customers of their enterprise solution are asking for it (you can read it in the thread of https://gitlab.com/gitlab-org/gitlab/-/issues/24155).

So for now I have no way to access the attachments, hence no way to migrate them from one GitLab instance to another.

If you have any idea or find anything of interest that would allow me to make some progress here, please let me know.