redcode.py

#!/usr/bin/env python

import argparse
import operator
import subprocess

parser = argparse.ArgumentParser(description='Count deleted lines only in the current repo')
parser.add_argument('--since', help='Since a date or e.g. "2 weeks ago"')

args = parser.parse_args()

base_command = 'git log --pretty=format:"%an" --numstat'

if args.since:
    since = args.since
    if (since.endswith('ago')):
        since = since.replace(' ', '.')
        base_command += ' --since "{}"'.format(since)
    else:
        # TODO: Validate
        base_command += ' --since "{}"'.format(since)


sp = subprocess.run(base_command, stdout=subprocess.PIPE, shell=True)

name = False

scores = {}

for line in sp.stdout.splitlines():
    line = line.decode('utf-8')
    if line.strip() == '':
        pass
    elif line[0].isnumeric():
        vals = line.split('\t')
        old_score = scores.get(name, 0)
        scores[name] = old_score + int(vals[1])
    else:
        if line[0] == '-':
            continue
        name = line.strip()

sorted_scores = sorted(scores.items(), key=operator.itemgetter(1), reverse=True)
for each in sorted_scores:
    print("{}: {}".format(each[0], each[1]))