How to count total lines changed by a specific author in a Git repository?
Is there a command I can invoke which will count the lines changed by a specific author in a Git repository? I know that there must be ways to count the number of commits as Github does this for their Impact graph.
Answer
This gives some statistics about the author, modify as required.
Using Gawk:
git log --author="_Your_Name_Here_" --pretty=tformat: --numstat \
| gawk '{ add += $1; subs += $2; loc += $1 - $2 } END { printf "added lines: %s removed lines: %s total lines: %s\n", add, subs, loc }' -
Using Awk on Mac OSX:
git log --author="_Your_Name_Here_" --pretty=tformat: --numstat | awk '{ add += $1; subs += $2; loc += $1 - $2 } END { printf "added lines: %s, removed lines: %s, total lines: %s\n", add, subs, loc }' -
EDIT (2017)
There is a new package on github that looks slick and uses bash as dependencies (tested on linux). It's more suitable for direct usage rather than scripts.
It's git-quick-stats (github link).
Copy git-quick-stats to a folder and add the folder to path.
mkdir ~/source
cd ~/source
git clone [email protected]:arzzen/git-quick-stats.git
mkdir ~/bin
ln -s ~/source/git-quick-stats/git-quick-stats ~/bin/git-quick-stats
chmod +x ~/bin/git-quick-stats
export PATH=${PATH}:~/bin
Usage:
git-quick-stats
