#
# create hard or symbolic links to SOURCEDIR/FILES in DESTDIR
#
-# If --prepend-suffix is specified, link to foo.bar will be called fooSUFFIX.bar.
-# Shell wildcards expansion is performed on FILES.
+# If symbolic or hard links are not provided by the operating system,
+# copies will be made instead. However, if the operating system
+# support symbolic or hard links, then this program expects to
+# operate on a filesystem which supports them too.
+#
+# If --prepend-suffix is specified, link to foo.bar will be called
+# fooSUFFIX.bar. Shell wildcards expansion is performed on FILES.
+#
+# No check is performed on FILES type; in particular, if FILES
+# expansions contain a directory and hard links are requested,
+# this program may fail non-gracefully.
+#
+# Attempts to make hard links across different filesystems are
+# caught and replaced by copies.
import sys
import os
import glob
import getopt
-
-print "mass-link.py"
+import shutil
optlist, args = getopt.getopt (sys.argv[1:], '', ['prepend-suffix='])
link_type, source_dir, dest_dir = args[0:3]
insert_suffix = lambda p: p
if link_type == 'symbolic':
- link = os.symlink
+ if hasattr (os, 'symlink'):
+ link = os.symlink
+ else:
+ link = shutil.copy
elif link_type == 'hard':
- link = os.link
+ if hasattr (os, 'link'):
+ link = os.link
+ else:
+ link = shutil.copy
else:
sys.stderr.write(sys.argv[0] + ': ' + link_type + ": wrong argument, expected 'symbolic' or 'hard'\n")
sys.exit (1)
def force_link (src,dest):
if os.path.exists (dest):
- os.system ('rm -f ' + dest)
- link (src, dest)
+ os.remove (dest)
+ try:
+ link (src, dest)
+ except OSError, e: # can't use "as" because GUB has python 2.4.5.
+ if e.errno == 18:
+ shutil.copy (src, dest)
+ else:
+ raise
+ os.utime (dest, None)
map (force_link, sourcefiles, destfiles)