cmd/linenumbers.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

30 lines
786 B
Python

import argparse
import sys
from voussoirkit import pipeable
def linenumbers_argparse(args):
lines = pipeable.input(args.source, read_files=True)
if args.lazy:
form = '{no} | {line}'
else:
lines = list(lines)
digits = len(str(len(lines)))
form = '{no:>0%d} | {line}' % digits
for (index, line) in enumerate(lines):
pipeable.stdout(form.format(no=index+1, line=line))
return 0
def main(argv):
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('source')
parser.add_argument('--lazy', action='store_true')
parser.set_defaults(func=linenumbers_argparse)
args = parser.parse_args(argv)
return args.func(args)
if __name__ == '__main__':
raise SystemExit(main(sys.argv[1:]))