view Tools/scripts/linktree.py @ 56121:ea697cde6882 3.1

Merged revisions 74881-74885,74888,74891-74895,74900,74905-74906,74931-74932,74934,74941-74942,74944,74956 via svnmerge from svn+ssh://pythondev@svn.python.org/python/branches/py3k ........ r74881 | r.david.murray | 2009-09-17 15:12:49 -0400 (Thu, 17 Sep 2009) | 2 lines Check in first draft of maintainers.rst. ........ r74882 | eric.smith | 2009-09-17 15:22:30 -0400 (Thu, 17 Sep 2009) | 1 line Typo. ........ r74883 | mark.dickinson | 2009-09-17 15:37:28 -0400 (Thu, 17 Sep 2009) | 1 line Add some more module maintainers. ........ r74884 | mark.dickinson | 2009-09-17 15:39:12 -0400 (Thu, 17 Sep 2009) | 1 line Revert accidental changes to Objects/longobject.c ........ r74885 | mark.dickinson | 2009-09-17 16:20:01 -0400 (Thu, 17 Sep 2009) | 1 line Add decimal maintainers ........ r74888 | r.david.murray | 2009-09-17 18:10:48 -0400 (Thu, 17 Sep 2009) | 2 lines Maintainer additions from MAL. ........ r74891 | georg.brandl | 2009-09-17 18:18:01 -0400 (Thu, 17 Sep 2009) | 1 line Some more maintainers. ........ r74892 | r.david.murray | 2009-09-17 19:23:56 -0400 (Thu, 17 Sep 2009) | 2 lines Add a couple interest areas for Nick per his request. ........ r74893 | r.david.murray | 2009-09-17 19:43:20 -0400 (Thu, 17 Sep 2009) | 2 lines Benajmin is also compiler-knowledgeable. ........ r74894 | alexandre.vassalotti | 2009-09-17 20:59:05 -0400 (Thu, 17 Sep 2009) | 2 lines Added myself to my areas of interest. ........ r74895 | brett.cannon | 2009-09-17 21:03:35 -0400 (Thu, 17 Sep 2009) | 1 line Add myself to a couple places as maintainer. ........ r74900 | georg.brandl | 2009-09-18 05:06:37 -0400 (Fri, 18 Sep 2009) | 1 line Add myself in interest areas. ........ r74905 | ezio.melotti | 2009-09-18 05:58:43 -0400 (Fri, 18 Sep 2009) | 1 line Add myself in interest areas and mark effbot as inactive in winsound ........ r74906 | antoine.pitrou | 2009-09-18 09:15:23 -0400 (Fri, 18 Sep 2009) | 3 lines Add myself in a couple of places ........ r74931 | r.david.murray | 2009-09-18 17:25:36 -0400 (Fri, 18 Sep 2009) | 5 lines Add some names gleaned from the "Tracker Archeology" thread on python-dev from back in February. Also consolidate the autoconf and makefiles topics into one, and add tracker and svn/hg topics. ........ r74932 | r.david.murray | 2009-09-18 17:32:16 -0400 (Fri, 18 Sep 2009) | 2 lines Remove non-committer mistakenly added. ........ r74934 | r.david.murray | 2009-09-18 17:40:30 -0400 (Fri, 18 Sep 2009) | 2 lines More descriptive/generic name for the svn/hg entry (version control) ........ r74941 | benjamin.peterson | 2009-09-18 18:45:59 -0400 (Fri, 18 Sep 2009) | 1 line add a new category for myself ........ r74942 | benjamin.peterson | 2009-09-18 18:50:55 -0400 (Fri, 18 Sep 2009) | 1 line add myself for symtable ........ r74944 | georg.brandl | 2009-09-19 03:39:05 -0400 (Sat, 19 Sep 2009) | 1 line I would like to maintain the token module! ........ r74956 | r.david.murray | 2009-09-19 14:40:08 -0400 (Sat, 19 Sep 2009) | 3 lines Add everyone who we know has been a release manager as a resource for the 'release management' topic. ........
author R. David Murray <rdmurray@bitdance.com>
date Sat, 19 Sep 2009 19:04:37 +0000
parents 46625e6122e9
children fcfe324663a6
line wrap: on
line source

#! /usr/bin/env python

# linktree
#
# Make a copy of a directory tree with symbolic links to all files in the
# original tree.
# All symbolic links go to a special symbolic link at the top, so you
# can easily fix things if the original source tree moves.
# See also "mkreal".
#
# usage: mklinks oldtree newtree

import sys, os

LINK = '.LINK' # Name of special symlink at the top.

debug = 0

def main():
    if not 3 <= len(sys.argv) <= 4:
        print('usage:', sys.argv[0], 'oldtree newtree [linkto]')
        return 2
    oldtree, newtree = sys.argv[1], sys.argv[2]
    if len(sys.argv) > 3:
        link = sys.argv[3]
        link_may_fail = 1
    else:
        link = LINK
        link_may_fail = 0
    if not os.path.isdir(oldtree):
        print(oldtree + ': not a directory')
        return 1
    try:
        os.mkdir(newtree, 0o777)
    except os.error as msg:
        print(newtree + ': cannot mkdir:', msg)
        return 1
    linkname = os.path.join(newtree, link)
    try:
        os.symlink(os.path.join(os.pardir, oldtree), linkname)
    except os.error as msg:
        if not link_may_fail:
            print(linkname + ': cannot symlink:', msg)
            return 1
        else:
            print(linkname + ': warning: cannot symlink:', msg)
    linknames(oldtree, newtree, link)
    return 0

def linknames(old, new, link):
    if debug: print('linknames', (old, new, link))
    try:
        names = os.listdir(old)
    except os.error as msg:
        print(old + ': warning: cannot listdir:', msg)
        return
    for name in names:
        if name not in (os.curdir, os.pardir):
            oldname = os.path.join(old, name)
            linkname = os.path.join(link, name)
            newname = os.path.join(new, name)
            if debug > 1: print(oldname, newname, linkname)
            if os.path.isdir(oldname) and \
               not os.path.islink(oldname):
                try:
                    os.mkdir(newname, 0o777)
                    ok = 1
                except:
                    print(newname + \
                          ': warning: cannot mkdir:', msg)
                    ok = 0
                if ok:
                    linkname = os.path.join(os.pardir,
                                            linkname)
                    linknames(oldname, newname, linkname)
            else:
                os.symlink(linkname, newname)

if __name__ == '__main__':
    sys.exit(main())