tests/filtercr.py

patch: unify backend file access interface

- Rename readlines() into getfile(), return data and mode
- Make setfile() write a data buffer instead of lines, make mode mandatory.

#!/usr/bin/env python

# Filter output by the progress extension to make it readable in tests

import sys, re

for line in sys.stdin:
    line = re.sub(r'\r+[^\n]', lambda m: '\n' + m.group()[-1:], line)
    sys.stdout.write(line)
print