exchange: fix test for remote support of binary phases If the remote do not support phases, the "get" call will return None. We change that default return to empty tuple to fix the membership testing. This was a bug in the initial series. Thanks to yuja for catching this.

exchange: perform stream clone with clone bundle with --uncompressed Previously, `hg clone --uncompressed` would always clone from the origin server, even if a streaming clone bundle were available. With this change, we invoke the clone bundle mechanism before the stream clone mechanism, giving clone bundles the opportunity to handle --uncompressed (which is mapped to pullop.streamclonepreferred). The clone bundle filtering code now filters out entries that aren't stream clones when a stream clone is requested. If a stream clone clone bundle entry is present, it will be used. Otherwise, the client will fall back to a server-based streaming clone. .. feature:: `hg clone --uncompressed` uses clone bundles when possible Differential Revision: https://phab.mercurial-scm.org/D833

tests: add tests for clone bundles with --uncompressed Currently, --uncompressed will always clone from the origin server, even if a stream clone bundle is present. Let's add tests demonstrating this behavior. Differential Revision: https://phab.mercurial-scm.org/D832

py3: work around bytes/unicode divergence in parsedate()

py3: replace bytes[n] with slicing in checkwinfilename()

py3: manually escape control character to be embedded in win filename error

py3: replace str(None) with literal in convcmd.py

py3: remove use of str() in hgwebdir '%d' can't be used here since port may be either integer or byte string.

config: use copy-on-write to improve copy performance Previously, chg's `verify` call could take 30+ms loading and checking new config files. With one socket redirection, that adds up to around 70ms, which is a lot for fast commands (ex. `bookmark --hidden`). When investigating closer, A lot of time was spent on actually spent on ui copying, which is mainly about `config.config` and `dict` copying. This patch makes that 20x faster by adopting copy-on-write. The copy-on-write is performed at config section level. Before: In [1]: %timeit ui.copy() 100 loops, best of 3: 2.32 ms per loop After: In [1]: %timeit ui.copy() 10000 loops, best of 3: 128 us per loop 2ms may look not that bad, but it adds up pretty quickly with multiple calls. A typical chg run may call it 4 times, which is about 10ms. Differential Revision: https://phab.mercurial-scm.org/D808

py3: whitelist 15 more tests passing on Python 3 We have reached the count of 75 tests passing on Python 3. Differential Revision: https://phab.mercurial-scm.org/D858