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#! /usr/bin/python2.7
"""(Ostensibly) fix copyright notices in files.
Actually, this script will simply replace a block of text in a file from one
string to another. It will only do this once though, i.e. not globally
throughout the file. It writes a backup file and then does an os.rename()
dance for atomicity.
Usage: fixnotices.py [options] [filenames]
Options:
-h / --help
Print this message and exit
--oldnotice=file
Use the notice in the file as the old (to be replaced) string, instead
of the hard coded value in the script.
--newnotice=file
Use the notice in the file as the new (replacement) string, instead of
the hard coded value in the script.
--dry-run
Don't actually make the changes, but print out the list of files that
would change. When used with -v, a status will be printed for every
file.
-v / --verbose
Print a message for every file looked at, indicating whether the file
is changed or not.
"""
OLD_NOTICE = """/***********************************************************
Copyright (c) 2000, BeOpen.com.
Copyright (c) 1995-2000, Corporation for National Research Initiatives.
Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
All rights reserved.
See the file "Misc/COPYRIGHT" for information on usage and
redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
******************************************************************/
"""
import os
import sys
import getopt
NEW_NOTICE = ""
DRYRUN = 0
VERBOSE = 0
def usage(code, msg=''):
print __doc__ % globals()
if msg:
print msg
sys.exit(code)
def main():
global DRYRUN, OLD_NOTICE, NEW_NOTICE, VERBOSE
try:
opts, args = getopt.getopt(sys.argv[1:], 'hv',
['help', 'oldnotice=', 'newnotice=',
'dry-run', 'verbose'])
except getopt.error, msg:
usage(1, msg)
for opt, arg in opts:
if opt in ('-h', '--help'):
usage(0)
elif opt in ('-v', '--verbose'):
VERBOSE = 1
elif opt == '--dry-run':
DRYRUN = 1
elif opt == '--oldnotice':
fp = open(arg)
OLD_NOTICE = fp.read()
fp.close()
elif opt == '--newnotice':
fp = open(arg)
NEW_NOTICE = fp.read()
fp.close()
for arg in args:
process(arg)
def process(file):
f = open(file)
data = f.read()
f.close()
i = data.find(OLD_NOTICE)
if i < 0:
if VERBOSE:
print 'no change:', file
return
elif DRYRUN or VERBOSE:
print ' change:', file
if DRYRUN:
# Don't actually change the file
return
data = data[:i] + NEW_NOTICE + data[i+len(OLD_NOTICE):]
new = file + ".new"
backup = file + ".bak"
f = open(new, "w")
f.write(data)
f.close()
os.rename(file, backup)
os.rename(new, file)
if __name__ == '__main__':
main()