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Viewing changes to Tools/scripts/findlinksto.py

  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2009-03-23 00:01:27 UTC
  • Revision ID: james.westby@ubuntu.com-20090323000127-5fstfxju4ufrhthq
Tags: upstream-3.1~a1+20090322
Import upstream version 3.1~a1+20090322

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Tools/scripts/findlinksto.py
 
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#! /usr/bin/env python
 
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# findlinksto
 
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#
 
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# find symbolic links to a path matching a regular expression
 
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import os
 
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import sys
 
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import re
 
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import getopt
 
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def main():
 
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    try:
 
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        opts, args = getopt.getopt(sys.argv[1:], '')
 
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        if len(args) < 2:
 
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            raise getopt.GetoptError('not enough arguments', None)
 
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    except getopt.GetoptError as msg:
 
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        sys.stdout = sys.stderr
 
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        print(msg)
 
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        print('usage: findlinksto pattern directory ...')
 
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        sys.exit(2)
 
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    pat, dirs = args[0], args[1:]
 
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    prog = re.compile(pat)
 
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    for dirname in dirs:
 
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        os.walk(dirname, visit, prog)
 
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def visit(prog, dirname, names):
 
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    if os.path.islink(dirname):
 
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        names[:] = []
 
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        return
 
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    if os.path.ismount(dirname):
 
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        print('descend into', dirname)
 
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    for name in names:
 
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        name = os.path.join(dirname, name)
 
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        try:
 
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            linkto = os.readlink(name)
 
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            if prog.search(linkto) is not None:
 
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                print(name, '->', linkto)
 
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        except os.error:
 
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            pass
 
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if __name__ == '__main__':
 
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    main()