git-wordstat

#!/bin/bash

git log --pretty=%H "$@" | while read -r sha; do
    added=$(git show --word-diff=porcelain "$sha" | grep '^+' | cut -c2- | wc -w)
    removed=$(git show --word-diff=porcelain "$sha" | grep '^-' | cut -c2- | wc -w)
    git show --pretty="- hash: %h%n  date: %aI%n  author: |-2%w(0,0,4)%n%an <%ae>%w(0,0,2)%nmessage: |-2%w(0,0,4)%n%s%w(0,0,0)%n  added: $added%n  removed: $removed" -s "$sha"
done

git-wordstat-show

#!/usr/bin/env python

import sys
from yaml import safe_load
import pandas as pd
import matplotlib.pyplot as plt

df = pd.DataFrame.from_records(safe_load(sys.stdin), index="date").sort_index()
pd.DataFrame({"added": df.added.cumsum(), "removed": df.removed.cumsum()}).plot()
plt.show()