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by johnrob 395 days ago
Once I discovered how git apply can take diff files (or patch files) as input, I stopped using git stash in favor of plain old files. Easier to list and browse the contents of prior edits, also you can grep the files as method of search. I’ve even found myself copying and editing the diffs before applying.
4 comments

That is a very neat trick, I agree.

I personally approaches stashes as undoable "clean up", and I never have anything really important that I want to save there. If I do have something like that, I just commit with a "WIP <some-descriptive-string>" message and don't push it, then a "git reset --mixed HEAD^" when I want to get back to it.

However, just FYI: you can "grep" your stashes really easily if you want to. just "git stash list -p" gives you the diffs for all the stashes, by default in "less" where you can search them, but you can pipe it to grep if you want. I somewhat frequently do that with "git log", if I want to know "when did this variable change?" or whatever, just "git log -p" to get the log with diffs in less, then search for whatever it was with a slash.

Oh that’s clever, I’ll try that out. Looks like you could just do a git diff > file.patch.

Neat.

You’ll also want to familiarize with “git apply -3 <file name>”, for when a diff can’t be applied cleanly. It will try “harder” to merge (three way method) and if it still fails it invokes the conflict merge “UX”:

<<<<<<<<<

=========

>>>>>>>>>

There's also Neil Brown's "wiggle" program for applying patches that don't apply.

https://github.com/neilbrown/wiggle

although on debian based systems I think you can just "apt install wiggle"

What does "applying patches that don't apply" mean exactly?

I know about wiggle, but I have not used it, to be honest.

It means that if you do "patch -p1 --dry-run < some.patch", and it complains that it doesn't apply, wiggle can sometimes apply it anyway, and also, if you do "patch -p1 < some.patch", and it partially applies but with rejected hunks, wiggle can try to apply the rejected hunks.
git diff an pipe works, but committing and then `git format-patch` can export multiple patches and then includes metadata (commit message, date, author, etc.) which can make reasoning about such files a lot easier. In a plain diff you only got filename as metadata.
Thank you, will try. Useful bit of knowledge.
That’s a great idea, and very timely for me.