git-annex: enable /media/ links

[kousu]

Previously, Gitea's LFS support allowed direct-downloads of LFS content, via http://$HOSTNAME:$PORT/$USER/$REPO/media/branch/$BRANCH/$FILE This expands that grace to git-annex too.

This also includes corresponding UI changes, mostly to the output of view_file.tmpl. moved to #22

[kousu]

Besides just being good for completeness, this will be needed for my plan to integrate Cornerstone into Neurogitea.

[kousu]

TODO:

• Add a case for git-annex to

  https://github.com/neuropoly/gitea/blob/b999fb810350b503f180d4516b0385696ea0514f/templates/repo/view_file.tmpl#L27-L29

  so that it can say "Stored with git-annex" instead of just

  

• Rearrange

  https://github.com/neuropoly/gitea/blob/b999fb810350b503f180d4516b0385696ea0514f/routers/web/repo/view.go#L429

  so that

  https://github.com/neuropoly/gitea/blob/b999fb810350b503f180d4516b0385696ea0514f/templates/repo/view_file.tmpl#L102-L104

  outputs '/media' in both the git-annex and git-lfs cases.

• Add downloading via /media to the tests

  For what it's worth, here's how upstream tests /media:

  https://github.com/neuropoly/gitea/blob/b999fb810350b503f180d4516b0385696ea0514f/tests/integration/git_test.go#L266-L269

[kousu]

I've gotten the view template to render annex files:

and made the "View Raw File" link there link to a path like http://HOSTNAME/$USER/$REPO/media/branch/main/sub-glen_acq-T1w_MTS.nii.gz.

I also made sure it can render text files; notice this is "Stored with git-annex" but still renders inline:

I have yet to write tests.

I've also noticed another TODO: symlink-based annex files render as symlinks (obviously) and aren't detected as annex pointers:

• Patch annex.ReadPointer to handle symlinks; probably means adding a os.ReadLink() call

[kousu]

Also, there's a way to test the templates, which might be useful; here's an example:

https://github.com/neuropoly/gitea/blob/0afe11d4b436163e8dcf6d5d54a22707d6d18563/tests/integration/repo_test.go#L22-L37

which seems to be based on https://pkg.go.dev/github.com/PuerkitoBio/goquery.

in particular, I want to test for:

• view_file.tmpl renders "/media" and not "/raw" when used on annexed files
• the index page does not render the symlink icon on a file that's an annex symlink