Case-insensitive git pickaxe search

Question

I'm trying to find all commits where a particular string or arbitrary capitalisation thereof (e.g. foobar ,FooBar, fooBar) was introduced/removed in a git repository.

Based on this SO answer (which covers a different basic use case), I first tried using git grep

git rev-list --all | xargs git grep -i foobar 

This was pretty awful, as it only gave information as to whether the string is present in a commit, so I ended up with loads of superfluous commits.

I then tried pickaxe, which got me most of the way there, e.g.

git log --pickaxe-regex -S'foobar' --oneline 

This only got the lowercase foobar. I tried the -i flag, but that doesn't seem to apply to the --pickaxe-regex option. I then resorted to using patterns like this, which got me a bit further:

git log --pickaxe-regex -S'.oo.ar' --oneline 

Is there a way to make --pickaxe-regex do case-insensitive matching?

I'm using git v1.7.12.4.

Answer 1

The way the -i is used with pickaxe (see commit accccde, git 1.7.10, April 2012) is:

git log -S foobar -i --oneline # or git log --regexp-ignore-case -Sfoobar # or git log -i -Sfoobar 

Note that with 1.x git versions this option will not work with a regexps, only with a fixed string. It works with regexps only since git 2.0 and commit 218c45a, git 2.0, May 2014.