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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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with open(arg) as fp: |
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OLD_NOTICE = fp.read() |
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elif opt == '--newnotice': |
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with open(arg) as fp: |
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NEW_NOTICE = fp.read() |
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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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with open(file) as f: |
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data = f.read() |
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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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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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with open(new, "w") as f: |
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f.write(data) |
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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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