Staging
v0.8.1
v0.8.1
https://github.com/python/cpython
Tip revision: 1fae982b9b6fff5a987a69856b91339e5d023838 authored by Benjamin Peterson on 25 June 2016, 21:03:21 UTC
2.7.12 final
2.7.12 final
Tip revision: 1fae982
finddiv.py
#! /usr/bin/env python
"""finddiv - a grep-like tool that looks for division operators.
Usage: finddiv [-l] file_or_directory ...
For directory arguments, all files in the directory whose name ends in
.py are processed, and subdirectories are processed recursively.
This actually tokenizes the files to avoid false hits in comments or
strings literals.
By default, this prints all lines containing a / or /= operator, in
grep -n style. With the -l option specified, it prints the filename
of files that contain at least one / or /= operator.
"""
import os
import sys
import getopt
import tokenize
def main():
try:
opts, args = getopt.getopt(sys.argv[1:], "lh")
except getopt.error, msg:
usage(msg)
return 2
if not args:
usage("at least one file argument is required")
return 2
listnames = 0
for o, a in opts:
if o == "-h":
print __doc__
return
if o == "-l":
listnames = 1
exit = None
for filename in args:
x = process(filename, listnames)
exit = exit or x
return exit
def usage(msg):
sys.stderr.write("%s: %s\n" % (sys.argv[0], msg))
sys.stderr.write("Usage: %s [-l] file ...\n" % sys.argv[0])
sys.stderr.write("Try `%s -h' for more information.\n" % sys.argv[0])
def process(filename, listnames):
if os.path.isdir(filename):
return processdir(filename, listnames)
try:
fp = open(filename)
except IOError, msg:
sys.stderr.write("Can't open: %s\n" % msg)
return 1
g = tokenize.generate_tokens(fp.readline)
lastrow = None
for type, token, (row, col), end, line in g:
if token in ("/", "/="):
if listnames:
print filename
break
if row != lastrow:
lastrow = row
print "%s:%d:%s" % (filename, row, line),
fp.close()
def processdir(dir, listnames):
try:
names = os.listdir(dir)
except os.error, msg:
sys.stderr.write("Can't list directory: %s\n" % dir)
return 1
files = []
for name in names:
fn = os.path.join(dir, name)
if os.path.normcase(fn).endswith(".py") or os.path.isdir(fn):
files.append(fn)
files.sort(lambda a, b: cmp(os.path.normcase(a), os.path.normcase(b)))
exit = None
for fn in files:
x = process(fn, listnames)
exit = exit or x
return exit
if __name__ == "__main__":
sys.exit(main())