oxidize zed

[Byron]

https://github.com/zed-industries/zed

Diffing

• blob-diff based on two buffers
• diff-delta (probably works via imara diff already, but exact format is unclear)
• line-stats
• hunk by index (probably works via imara-diff, but needs validation)

Status

What matters is that the information is complete - maybe they'd use plumbing for this. A trait exists to make other backends easier.

• index-and-worktree, filtered by pathspec (i.e. subdir or single-file filter)
• commit-and-index (by path)
• status of worktree file (to get untracked, conflicts, ETC)

Other

• open thread-safe repo
• current branch name
• list branches
• crate a new branch
• rename branch (no native support, must be deletion and creation), unclear if rename should be native rather than having a transaction with delete and create.

For tests

• init non-bare
• add file to index and write it back (git add)
• git rm --staged
• git commit - write tree from index (!), create commit
• git stash
• git reset --soft <commit>
• git status - for paths and their status