convert: don't drop commits that are empty in the source when using --filemap
I ran into this when using `hg lfconvert --to-normal` (which uses the filemap
class internally), and saw that commits with nothing but a branch change were
dropped. We could put in an option that only lfconvert uses internally. But
silently dropping anything other than a commit where all changes were excluded
seems unintended. For example, there's a message in mercurial_sink.putcommit()
if it drops an empty commit. (And the reason that isn't kicking in here is
because lfconvert isn't passing --filemap, so the self.filemapmode conditional
there is always False.)
The naive change of `return not files` broke test-convert-filemap.t, so this is
a little more elaborate than needed for converting from largefiles.
#!/usr/bin/env python
# like ls -l, but do not print date, user, or non-common mode bit, to avoid
# using globs in tests.
from __future__ import absolute_import, print_function
import os
import stat
import sys
def modestr(st):
mode = st.st_mode
result = ''
if mode & stat.S_IFDIR:
result += 'd'
else:
result += '-'
for owner in ['USR', 'GRP', 'OTH']:
for action in ['R', 'W', 'X']:
if mode & getattr(stat, 'S_I%s%s' % (action, owner)):
result += action.lower()
else:
result += '-'
return result
def sizestr(st):
if st.st_mode & stat.S_IFREG:
return '%7d' % st.st_size
else:
# do not show size for non regular files
return ' ' * 7
os.chdir((sys.argv[1:] + ['.'])[0])
for name in sorted(os.listdir('.')):
st = os.stat(name)
print('%s %s %s' % (modestr(st), sizestr(st), name))