Show Only Commits That Touch Specific Lines
When you run git log, you are listing all commits in reverse-chronological
order for the current branch. There are ways of filtering the commits that
get output from git-log. As of Git 1.8.4, git-log output can be filtered
by commits that touch a range of line numbers.
This is done with the -L flag.
For instance, if I want to see all commits that touched the 13th line of my
README.md file, then I can do this:
$ git log -L13,13:README.md
I can alter the command to show commits that touched a range of lines like so:
$ git log -L19,45:README.md
I used the -L flag recently to find when a dependency was added to my
package.json file even though the most recent changes to that line were
version bumps.