rhg: Make `files` work on repo-relative paths when possible When the current directory is outside of the repository we need to turn everything into absolute filesystem paths in order to compute correct relative paths. This was previously done unconditionally, but is not necessary when the current directory is inside the repository. With this change `rhg files > /dev/null` at the root of a mozilla-central snapshot goes from ~150 ms to ~70 ms. My repository is located at a somewhat long path though (93 bytes). The effect may not be as pronounced at a shorter path. Differential Revision: https://phab.mercurial-scm.org/D10200

split: avoid strip if split is a no-op (identical to original) Differential Revision: https://phab.mercurial-scm.org/D10389

split: fix issue with empty splits adjusting phases Differential Revision: https://phab.mercurial-scm.org/D10388

split: add test demonstrating issue with empty splits adjusting phases Differential Revision: https://phab.mercurial-scm.org/D10387

test-lfs: fix expected output This is not covered by the CI and was broken. Differential Revision: https://phab.mercurial-scm.org/D10397

test-lfs: avoid a bashism when spawning the server For zsh, this &> call is read as "& >", this spin the process without redirection. As a result the server grab stdout, which does not get closed at the end of the test. As a result `run-tests.py` hang there forever, waiting for the the stream for be close. (which is probably as issue on its own). Differential Revision: https://phab.mercurial-scm.org/D10396

test-lfs: avoid pagination Otherwise, the pagination can trigger in when running the test with --debug, blocking the test execution for no good reason. Differential Revision: https://phab.mercurial-scm.org/D10395

run-test: make it clearer why we terminating process The --verbose log wer only talking about process termination. Now we have more information about why. Differential Revision: https://phab.mercurial-scm.org/D10394

push-dests: move the code around missing default dest inside `get_push_paths` This function has a clear semantic and moving the code dealing with this inside it will help reduce duplication. Differential Revision: https://phab.mercurial-scm.org/D10385

push-dests: rework the handling of default value This new core is more straightforward and doing this early will make the next changeset simpler. Differential Revision: https://phab.mercurial-scm.org/D10384

outgoing: merge the code handling --graph with the main one The --graph code had its own copy of the logic. With the previous reorganisation of the code, we can now merge it with the main code, reducing fragile complication. As a side effect, `hg out --graph` now use the right return code when they are nothing outgoing. This explain the change to output in `tests/test-largefiles-misc.t`. Differential Revision: https://phab.mercurial-scm.org/D10383

outgoing: move filtering logic in its own function This move code dedicated to a single purpose together and make the main code simpler. Right when we are getting ready to make it more complex :-D Differential Revision: https://phab.mercurial-scm.org/D10382