mirror of
https://github.com/python/cpython.git
synced 2025-11-04 11:49:12 +00:00
89 lines
2.5 KiB
Python
Executable file
89 lines
2.5 KiB
Python
Executable file
#! /usr/bin/env python3
|
|
|
|
"""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 as 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 as msg:
|
|
sys.stderr.write("Can't open: %s\n" % msg)
|
|
return 1
|
|
with fp:
|
|
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), end=' ')
|
|
|
|
def processdir(dir, listnames):
|
|
try:
|
|
names = os.listdir(dir)
|
|
except OSError as 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(key=os.path.normcase)
|
|
exit = None
|
|
for fn in files:
|
|
x = process(fn, listnames)
|
|
exit = exit or x
|
|
return exit
|
|
|
|
if __name__ == "__main__":
|
|
sys.exit(main())
|