commit: note when files are missing
Before, you could experience the following strange interaction:
$ hg commit
nothing changed
$ hg merge
abort: outstanding uncommitted changes
which confused at least one user in #mercurial.
#!/usr/bin/env python
import errno, os, sys
for f in sys.argv[1:]:
try:
print f, '->', os.readlink(f)
except OSError, err:
if err.errno != errno.EINVAL:
raise
print f, 'not a symlink'
sys.exit(0)