revlog: add a fast method for getting a list of chunks This moves _chunkraw into the loop. Doing that improves revlog decompression -- in particular, manifest decompression -- significantly. For a 20 MB manifest which is the result of a > 40k delta chain, hg perfmanifest improves from 0.55 seconds to 0.49 seconds.

perfmanifest: allow and require passing in a rev Previously perfmanifest would only test tip.

perfmanifest: fix cache invalidation The manifest cache is now stored in _mancache. The revlog cache is still stored in _cache.

lrucachedict: implement clear()

merge with stable

bundle: fix performance regression when bundling file changes (issue4031) Somewhere before 2.7, a change [ec896f9e8894] was committed that entailed a large performance regression when bundling (and therefore remote cloning) repositories. For each file in the repository, it would recompute the set of needed changesets even though it is the same for all files. This computation would dominate bundle runtimes according to profiler output (by 10x or more).

merge with stable

revset: fix wrong keyword() behaviour for strings with spaces Some changesets can be wrongly reported as matched by this predicate due to searching in a string joined with spaces and not individually. A test case added, which fails without this fix.

commitablefilectx: move children from workingfilectx

commitablefilectx: move parents from workingfilectx