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113 lines
3 KiB
Python
Executable file
113 lines
3 KiB
Python
Executable file
#! /usr/bin/env python3
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"""(Ostensibly) fix copyright notices in files.
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Actually, this script will simply replace a block of text in a file from one
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string to another. It will only do this once though, i.e. not globally
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throughout the file. It writes a backup file and then does an os.rename()
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dance for atomicity.
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Usage: fixnotices.py [options] [filenames]
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Options:
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-h / --help
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Print this message and exit
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--oldnotice=file
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Use the notice in the file as the old (to be replaced) string, instead
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of the hard coded value in the script.
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--newnotice=file
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Use the notice in the file as the new (replacement) string, instead of
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the hard coded value in the script.
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--dry-run
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Don't actually make the changes, but print out the list of files that
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would change. When used with -v, a status will be printed for every
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file.
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-v / --verbose
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Print a message for every file looked at, indicating whether the file
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is changed or not.
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"""
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OLD_NOTICE = """/***********************************************************
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Copyright (c) 2000, BeOpen.com.
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Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
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All rights reserved.
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See the file "Misc/COPYRIGHT" for information on usage and
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redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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******************************************************************/
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"""
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import os
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import sys
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import getopt
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NEW_NOTICE = ""
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DRYRUN = 0
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VERBOSE = 0
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def usage(code, msg=''):
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print(__doc__ % globals())
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if msg:
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print(msg)
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sys.exit(code)
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def main():
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global DRYRUN, OLD_NOTICE, NEW_NOTICE, VERBOSE
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try:
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opts, args = getopt.getopt(sys.argv[1:], 'hv',
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['help', 'oldnotice=', 'newnotice=',
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'dry-run', 'verbose'])
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except getopt.error as msg:
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usage(1, msg)
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for opt, arg in opts:
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if opt in ('-h', '--help'):
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usage(0)
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elif opt in ('-v', '--verbose'):
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VERBOSE = 1
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elif opt == '--dry-run':
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DRYRUN = 1
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elif opt == '--oldnotice':
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fp = open(arg)
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OLD_NOTICE = fp.read()
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fp.close()
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elif opt == '--newnotice':
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fp = open(arg)
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NEW_NOTICE = fp.read()
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fp.close()
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for arg in args:
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process(arg)
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def process(file):
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f = open(file)
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data = f.read()
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f.close()
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i = data.find(OLD_NOTICE)
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if i < 0:
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if VERBOSE:
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print('no change:', file)
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return
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elif DRYRUN or VERBOSE:
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print(' change:', file)
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if DRYRUN:
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# Don't actually change the file
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return
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data = data[:i] + NEW_NOTICE + data[i+len(OLD_NOTICE):]
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new = file + ".new"
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backup = file + ".bak"
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f = open(new, "w")
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f.write(data)
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f.close()
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os.rename(file, backup)
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os.rename(new, file)
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if __name__ == '__main__':
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main()
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