Mercurial > cpython-lru_cache-weakref
annotate Tools/scripts/linktree.py @ 6719:faebc1940432 legacy-trunk
Understand -Xlinker option.
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Tue, 02 Dec 1997 20:38:11 +0000 |
| parents | 73758db2f464 |
| children | 7a9afaba88d8 |
| rev | line source |
|---|---|
|
4573
73758db2f464
/usr/local/bin/python -> /usr/bin/env python
Guido van Rossum <guido@python.org>
parents:
1269
diff
changeset
|
1 #! /usr/bin/env python |
| 687 | 2 |
| 3 # linktree | |
| 4 # | |
| 5 # Make a copy of a directory tree with symbolic links to all files in the | |
| 6 # original tree. | |
| 7 # All symbolic links go to a special symbolic link at the top, so you | |
| 8 # can easily fix things if the original source tree moves. | |
| 9 # See also "mkreal". | |
| 10 # | |
| 11 # usage: mklinks oldtree newtree | |
| 12 | |
| 755 | 13 import sys, os |
| 687 | 14 |
| 15 LINK = '.LINK' # Name of special symlink at the top. | |
| 16 | |
| 17 debug = 0 | |
| 18 | |
| 19 def main(): | |
| 20 if not 3 <= len(sys.argv) <= 4: | |
| 21 print 'usage:', sys.argv[0], 'oldtree newtree [linkto]' | |
| 22 return 2 | |
| 23 oldtree, newtree = sys.argv[1], sys.argv[2] | |
| 24 if len(sys.argv) > 3: | |
| 25 link = sys.argv[3] | |
| 26 link_may_fail = 1 | |
| 27 else: | |
| 28 link = LINK | |
| 29 link_may_fail = 0 | |
| 755 | 30 if not os.path.isdir(oldtree): |
| 687 | 31 print oldtree + ': not a directory' |
| 32 return 1 | |
| 33 try: | |
| 755 | 34 os.mkdir(newtree, 0777) |
| 35 except os.error, msg: | |
| 687 | 36 print newtree + ': cannot mkdir:', msg |
| 37 return 1 | |
| 755 | 38 linkname = os.path.join(newtree, link) |
| 687 | 39 try: |
| 755 | 40 os.symlink(os.path.join(os.pardir, oldtree), linkname) |
| 41 except os.error, msg: | |
| 687 | 42 if not link_may_fail: |
| 43 print linkname + ': cannot symlink:', msg | |
| 44 return 1 | |
| 45 else: | |
| 46 print linkname + ': warning: cannot symlink:', msg | |
| 47 linknames(oldtree, newtree, link) | |
| 48 return 0 | |
| 49 | |
| 50 def linknames(old, new, link): | |
| 51 if debug: print 'linknames', (old, new, link) | |
| 52 try: | |
| 755 | 53 names = os.listdir(old) |
| 54 except os.error, msg: | |
| 687 | 55 print old + ': warning: cannot listdir:', msg |
| 56 return | |
| 57 for name in names: | |
| 755 | 58 if name not in (os.curdir, os.pardir): |
| 59 oldname = os.path.join(old, name) | |
| 60 linkname = os.path.join(link, name) | |
| 61 newname = os.path.join(new, name) | |
| 687 | 62 if debug > 1: print oldname, newname, linkname |
| 755 | 63 if os.path.isdir(oldname) and not os.path.islink(oldname): |
| 687 | 64 try: |
| 755 | 65 os.mkdir(newname, 0777) |
| 687 | 66 ok = 1 |
| 67 except: | |
| 68 print newname + ': warning: cannot mkdir:', msg | |
| 69 ok = 0 | |
| 70 if ok: | |
| 755 | 71 linkname = os.path.join(os.pardir, linkname) |
| 687 | 72 linknames(oldname, newname, linkname) |
| 73 else: | |
| 755 | 74 os.symlink(linkname, newname) |
| 687 | 75 |
| 76 sys.exit(main()) |