feat: add a progress bar for source ( git ) dependencies

[nichmor]

Overview

Adding progress bar for source ( git ) operations.

This is how it looks when solving metadata for source dependencies.

new-git-pb.mov

How to test it?

You can add these git dependencies in our examples/pixi-build/cpp-sdl/pixi.toml [dependencies]

boost-check = { git = "https://github.com/nichmor/pixi-build-examples", branch = "main", subdirectory = "boost-check" }
bzip2 = { git = "https://github.com/wolfv/pixi-build-examples", branch = "main", subdirectory = "build-recipe/recipes/bzip2" }

and run pixi install.

If you want to take a look again, please remove cache, git cache, and pixi.lock so retrieving metadata will start again.

[baszalmstra]

The reporter that you pass in now is very specific to git. In the future when we also fetch source archives via URLs we might want something similar.

I also think we might want to have a reporter per clone instead of one progress bar for all the git clones?

The reporter also doesnt actually report any progress other than start and finish. Is there not a way to get more fain grained progress?

[nichmor]

The reporter that you pass in now is very specific to git. In the future when we also fetch source archives via URLs we might want something similar.

I also think we might want to have a reporter per clone instead of one progress bar for all the git clones?

The reporter also doesnt actually report any progress other than start and finish. Is there not a way to get more fain grained progress?

I sticked to the same trait definition as uv ( having only on checkout _start and _finish ).
We are using mostly git from subprocess, so I don't have a good view of how we could report this progress

[ruben-arts]

This looks good to me, and I like the output!

I've not touched the progress bars myself so maybe good to let @baszalmstra review this technically.