test-arbitraryfilectx: stabilize for Windows Previously, the second last test (context.arbitraryfilectx(..)) returned True on Windows. I changed the repo setup sequence to import a patch, so that way the repo would have a proper symlink. That made the last test fail, since it is comparing files in wdir(), one of which is not the expected symlink. Apparently the (feature !) line matching doesn't work well with (no-eol), so I had to conditionalize the test instead of the output.

dirstate: remove excess attribute lookups for dirstate.status (issue5714) A recent refactor added a layer of abstraction to the dirstate which makes doing things like 'foo in dirstate' now require some extra Python attribute lookups. This is causing a 100ms slow down in hg status for mozilla-central. The fix is to hoist the inner dict's functions onto the main class once the lazy loading it complete, as well as store the actual functions before doing the status loop (as is done for other such functions). In my testing, it seems to address the performance regression, but we'll need to see the perf run results to know for sure. Differential Revision: https://phab.mercurial-scm.org/D1257

dirstate: avoid reading the map when possible (issue5713) (issue5717) Before the recent refactor, we would not load the entire map until it was accessed. As part of the refactor, that got lost and even just trying to load the dirstate parents would load the whole map. This caused a perf regression (issue5713) and a regression with static http serving (issue5717). Making it lazy loaded again fixes both. Differential Revision: https://phab.mercurial-scm.org/D1253

dirstate: move clear onto dirstatemap class A future diff will move the lazy loading aspect of dirstate to the dirstatemap class. This means it requires a slightly different strategy of clearing than just reinstantiating the object (since just reinstantiating the object will lazily load the on disk data again later instead of remaining permanently empty). So let's give it it's own clear function. Differential Revision: https://phab.mercurial-scm.org/D1252

internal-doc: document the config register mechanism This explains the various usage and feature of the config register introduced in Mercurial 4.3 and 4.4.

help: clarify the pre-txnclose-phase documentation Gregory Szorc requested some clarification.

internal-doc: document the 'phases' parameters to 'getbundle' The getbundle wireprotocol method has some extended documentation. We update it with the next parameters introduced for binary phases.

status: update the help to indicate that clean files are not normally tersed The same applies to '?' if --quiet is used (or any of the other states if some of -marduic is specified), but I couldn't figure out how to express that clearly.

terse: split on repo separator instead of os.sep (issue5715) The paths being processed are from scmutil.status, and therefore normalized to '/' separators.

makefile: put format-c into .PHONY targets