git で今週の総追加行数/総削除行数を出すサブコマンド改 http://mitukiii.hatenablog.com/entry/2014/08/14/221805

git-stats

#!/usr/bin/env bash

stats() {
    local desc="$1"
    local from="$2"
    local to="${3:-$from}"
    local since="$(date -v${from} +'%Y-%m-%d') 00:00:00"
    local until="$(date -v${to} +'%Y-%m-%d') 23:59:59"

    echo $desc
    git log --oneline --shortstat --no-merges --since="'$since'" --until="'$until'" \
        | grep -E 'files? changed' \
        | awk 'BEGIN { i=0; d=0 }
                     { i+=$4; d+=$6 }
               END   { print "  " i " insertions(+), " d " deletions(-)" }'
}


stats 'This week'  -6d +0d
stats 'Today'      +0d
stats 'Yesterday'  -1d
stats '2 days ago' -2d
stats '3 days ago' -3d
stats '4 days ago' -4d
stats '5 days ago' -5d
stats '6 days ago' -6d