tahoe-lafs/misc/coding_tools/find-trailing-spaces.py
2010-06-06 22:16:18 -07:00

43 lines
1.1 KiB
Python

#!/usr/bin/env python
import os, sys
from twisted.python import usage
class Options(usage.Options):
optFlags = [
("recursive", "r", "Search for .py files recursively"),
]
def parseArgs(self, *starting_points):
self.starting_points = starting_points
found = [False]
def check(fn):
f = open(fn, "r")
for i,line in enumerate(f.readlines()):
if line == "\n":
continue
if line[-1] == "\n":
line = line[:-1]
if line.rstrip() != line:
# the %s:%d:%d: lets emacs' compile-mode jump to those locations
print "%s:%d:%d: trailing whitespace" % (fn, i+1, len(line)+1)
found[0] = True
f.close()
o = Options()
o.parseOptions()
if o['recursive']:
for starting_point in o.starting_points:
for root, dirs, files in os.walk(starting_point):
for fn in [f for f in files if f.endswith(".py")]:
fn = os.path.join(root, fn)
check(fn)
else:
for fn in o.starting_points:
check(fn)
if found[0]:
sys.exit(1)
sys.exit(0)