Git contrib

git-contrib

#!/bin/bash
set -e -u
export LANG="C"
export LC_COLLATE="C"
export LC_CTYPE="C"
export LC_MESSAGES="C"
export LC_MONETARY="C"
export LC_NUMERIC="C"
export LC_TIME="C"
export LC_ALL="C"

sed_cmd="sed -n 's/^author //p'"

function get_lines {
    lines=$(git ls-tree --full-tree -r HEAD $DIR |
        # grep -E '(.py|.js|.html)' |
        cut -f 2 |
        xargs -n1 git blame -w --line-porcelain |
        eval "$1" |
        sort -f |
        uniq -ic |
        sort -rn)

    sum=0

    while read -r line;
    do
        set -- junk $line
        shift
        count=$1
        let sum+=count
    done <<< "$lines"

    percents=("")
    
    while read -r line;
    do
        set -- junk $line
        shift
        count=$1
        shift
        name=$@
        echo "$(printf %2d $count) ( $(printf %2.2f $(echo "scale = 2; $count * 100 / $sum" | bc))% ) $name"
    done <<< "$lines"
}

DIR=${1-'./'}
get_lines "$sed_cmd"