Git command to get list of all committers to files containing specific text

Question

What git command gets the list of all committers to files containing specific text. This can optionally include a before/after parameter. The problem I am facing is, is there any specific command for this, or can I get the list of files and pipe it to some command?

Answer 1

Let do that in two stages. 1st let's get the list of files:

files=`git grep -l "searh string"`

Having the list let's list all commits that touch the files, get the author's name/email for every commit, sort the list of authors printing only unique name/email.

git log --format='%an <%ae>' -- $files | sort -u

Combine two commands into one:

git log --all --format='%an <%ae>' -- `git grep -l "search string"` | sort -u