"""reindent [-d][-r][-v] [ path ... ]
--d (--dryrun) Dry run. Analyze, but don't make any changes to, files.
--r (--recurse) Recurse. Search for all .py files in subdirectories too.
--v (--verbose) Verbose. Print informative msgs; else no output.
--h (--help) Help. Print this usage information and exit.
+-d (--dryrun) Dry run. Analyze, but don't make any changes to, files.
+-r (--recurse) Recurse. Search for all .py files in subdirectories too.
+-n (--nobackup) No backup. Does not make a ".bak" file before reindenting.
+-v (--verbose) Verbose. Print informative msgs; else no output.
+-h (--help) Help. Print this usage information and exit.
Change Python (.py) files to use 4-space indents and no hard tab characters.
Also trim excess spaces and tabs from ends of lines, and remove empty lines
The hard part of reindenting is figuring out what to do with comment
lines. So long as the input files get a clean bill of health from
tabnanny.py, reindent should do a good job.
+
+The backup file is a copy of the one that is being reindented. The ".bak"
+file is generated with shutil.copy(), but some corner cases regarding
+user/group and permissions could leave the backup file more readable that
+you'd prefer. You can always use the --nobackup option to prevent this.
"""
__version__ = "1"
import tokenize
-import os
+import os, shutil
import sys
-verbose = 0
-recurse = 0
-dryrun = 0
+verbose = 0
+recurse = 0
+dryrun = 0
+makebackup = True
def usage(msg=None):
if msg is not None:
def main():
import getopt
- global verbose, recurse, dryrun
+ global verbose, recurse, dryrun, makebackup
try:
- opts, args = getopt.getopt(sys.argv[1:], "drvh",
- ["dryrun", "recurse", "verbose", "help"])
+ opts, args = getopt.getopt(sys.argv[1:], "drnvh",
+ ["dryrun", "recurse", "nobackup", "verbose", "help"])
except getopt.error, msg:
usage(msg)
return
dryrun += 1
elif o in ('-r', '--recurse'):
recurse += 1
+ elif o in ('-n', '--nobackup'):
+ makebackup = False
elif o in ('-v', '--verbose'):
verbose += 1
elif o in ('-h', '--help'):
print "But this is a dry run, so leaving it alone."
if not dryrun:
bak = file + ".bak"
- if os.path.exists(bak):
- os.remove(bak)
- os.rename(file, bak)
- if verbose:
- print "renamed", file, "to", bak
+ if makebackup:
+ shutil.copyfile(file, bak)
+ if verbose:
+ print "backed up", file, "to", bak
f = open(file, "w")
r.write(f)
f.close()