cmd/crlf.py
Ethan Dalool 4a9051e617
Big migrations and linting.
With pathclass.glob_many, we can clean up and feel more confident
about many programs that use pipeable to take glob patterns.

Added return 0 to all programs that didn't have it, so we have
consistent and explicit command line return values.

Other linting and whitespace.
2021-09-23 23:42:45 -07:00

46 lines
998 B
Python

'''
Convert LF line endings to CRLF.
'''
import argparse
import sys
from voussoirkit import pathclass
from voussoirkit import pipeable
CR = b'\x0D'
LF = b'\x0A'
CRLF = CR + LF
def crlf(file):
with file.open('rb') as handle:
content = handle.read()
original = content
content = content.replace(CRLF, LF)
content = content.replace(LF, CRLF)
if content == original:
return
with file.open('wb') as handle:
handle.write(content)
def crlf_argparse(args):
patterns = pipeable.input_many(args.patterns, skip_blank=True, strip=True)
files = pathclass.glob_many(patterns)
for file in files:
crlf(file)
pipeable.stdout(file)
return 0
def main(argv):
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('patterns')
parser.set_defaults(func=crlf_argparse)
args = parser.parse_args(argv)
return args.func(args)
if __name__ == '__main__':
raise SystemExit(main(sys.argv[1:]))