Fix ionic2 build output

fix-ionic-output.py

# For some reason, it looks like Ionic2 CLI prints log messages as
# something like 0=72, 1=101, 2=108, 3=108, 4=111
# (Looks like a representation of binary strings?)
# Pipe that output through this script to fix.

import re
import sys

re_garbled_line = re.compile(r'^\s*([0-9]+=[0-9]+(, )?)+$')


def fix_line(data):
    return ''.join([
        chr(int(x.strip().split('=')[1]))
        for x in data.split(', ')
    ])


for line in sys.stdin:
    if re_garbled_line.match(line):
        line = fix_line(line)
    sys.stdout.write(line)