convert: avoid updating tags when there is nothing new
Previously, when converting from a mercurial repo there would be an extraneous
commit at the end of the convert process that would rewrite tags. Now, we check
if there are any new tags before doing this rewriting.
$ "$TESTDIR/hghave" pyflakes || exit 80
$ cd "`dirname "$TESTDIR"`"
run pyflakes on all tracked files ending in .py or without a file ending
(skipping binary file random-seed)
$ hg manifest 2>/dev/null | egrep "\.py$|^[^.]*$" | grep -v /random_seed$ \
> | xargs pyflakes 2>/dev/null | "$TESTDIR/filterpyflakes.py"
contrib/win32/hgwebdir_wsgi.py:*: 'win32traceutil' imported but unused (glob)
setup.py:*: 'sha' imported but unused (glob)
setup.py:*: 'zlib' imported but unused (glob)
setup.py:*: 'bz2' imported but unused (glob)
setup.py:*: 'py2exe' imported but unused (glob)
tests/hghave.py:*: 'hgext' imported but unused (glob)
tests/hghave.py:*: '_lsprof' imported but unused (glob)
tests/hghave.py:*: 'publish_cmdline' imported but unused (glob)
tests/hghave.py:*: 'pygments' imported but unused (glob)
tests/hghave.py:*: 'ssl' imported but unused (glob)
contrib/win32/hgwebdir_wsgi.py:*: 'from isapi.install import *' used; unable to detect undefined names (glob)
hgext/inotify/linux/__init__.py:*: 'from _inotify import *' used; unable to detect undefined names (glob)