clone: save hardlink state of util.copyfiles()
When trying to do hardlink-cloning, the os_link() call of the
first file tried already fails on Windows, if the source is on a
UNC path.
This change avoids calling os_link() for the rest of files, leaving
us with a *single* failed os_link() call per clone operation, if the
source can't do hardlinks.
#!/usr/bin/env python
#
# This used to be a simple sed call like:
#
# $ sed "s:$HGTMP:*HGTMP*:"
#
# But $HGTMP has ':' under Windows which breaks the sed call.
#
import sys, os
input = sys.stdin.read()
input = input.replace(os.sep, '/')
hgtmp = os.environ['HGTMP'].replace(os.sep, '/')
input = input.replace(hgtmp, '$HGTMP')
sys.stdout.write(input)