Oh this is neat. I wonder if the license will accommodate my work (and my work is willing to allow a nonstandard diff)
The license is MIT, so should be fine for most things
How does this compare with GumTree? It's weird that the page doesn't even mention existing state-of-the-art tools for this task.
edit: I've compared GumTree and difftastic myself while working on a project this past week. Difftastic is harder to use programatically (the JSON format is unstable and leaves something to be desired) but other than that it's miles and miles better.
The manual talks about some of the older alternatives that influenced it. Doesn't directly compare them though https://difftastic.wilfred.me.uk/tree_diffing.html
I didn’t get a chance to look too deep into it, while it looks great for human reading in a terminal, can I just as easily output the diff to a patch file like I do often with ‘git diff [commit] [commit] > patch.txt and git apply it?
Doesn't look like it, from their docs:
Non-goals
Patching. Difftastic output is intended for human consumption, and it does not generate patches that you can apply later. Use diff if you need a patch.
Since the diffs are tree-sitter based, it's interesting to think about what a tree-sitter based patch would look like. Probably wouldn't double as a human and computer friendly format like normals diffs. I suppose that you could create patches that are more robust to the source code changing since it wouldn't care about linebreaks and maybe you could have it so it doesn't care if you move code around since you could have it so its going by e.g. what the parent function is and not the line number. I gotta wonder how useful that actually is though.
Use diff for that?
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