Have you ever wondered how to do context-aware grep in your code?
git-grep(1): -p, --show-function Show the preceding line that contains the function name of the match, unless the matching line is a function name itself. The name is determined in the same way as git diff works out patch hunk headers (see Defining a custom hunk-header in gitattributes(5)).
Just try it! You can even define your own hunk-header!!!