mq: avoid silent failure when single patch doesn't apply (issue4604) The error-handling here is quite byzantine. self._apply raises an AbortNoCleanup, but self.apply was swallowing the exception and returns 2. In self.push, we catch all exceptions.. and cleanup. We try to print a message to clean up.. but that relies on having a top-of-stack. Instead, we re-raise the abort in self.apply, and avoid cleanup on AbortNoCleanup in self.push by adding a trivial new except clause. We also modernize the now-visible abort message.

pushkey: flush pending data before running a pre-pushkey hook (issue4607) The pre-pushkey hook will likely validate the pushkey based on element previously changed in the same transaction. We need to make theses data available for the hook.

pushkey: use hook arguments from transaction when one exists When pushkey is called during a transaction, we include its 'hookargs' when running the pre-pushkey hooks. Having more data cannot hurt, especially the transaction ID.

util.h: also sniff for C99 before trying to use stdbool.h (issue4605) stdbool.h isn't required until C99. Sigh.

changelog: fix readpending if no pending data exist (issue4609) Since transaction are used for more than just changesets, it is possible to have a transaction without new changesets at all. In this case no ''00changelog.i.a' are written. In all cases the 'changelog.readpending' method is called if the repository has any pending data. The 'revlog' logic provides empty content if the file is missing, so the whole operation resulted in an empty changelog. We now skip reading the pending file if it is missing.

afterlock: add the callback to the top level lock (issue4608) If 'wlock' is taken, we should add 'afterlock' callback to the 'wlock' instead. Otherwise, running post transaction hook after 'lock' is release but 'wlock' is still taken lead to a deadlock (eg: 'hg update' during a hook). This situation is much more common since: 5dc5cd7abbf5 push: acquire local 'wlock' if "pushback" is expected (BC) (issue4596)

debuglock: access the lock file using the proper vfs Before this fix, 'wlock' was always reported as "free" because '.hg/store/wlock' have never been a thing.

status: pass matcher to pathcopies() Just like a7f8e3584ef3 (diff: pass the diff matcher to the copy logic, 2015-04-16) sped up 'hg diff --git $path', let's speed up 'hg st -C $path'. On the Firefox repo, this speeds up hg st --rev tip~40000 --rev tip -C python from 16s to 1.8s. Those two revisions differ in 100k files, out of which 1k is in python/.

annotate: prepare ancestry context of workingfilectx _ancestrycontext is necessary for fast lookup of _changeid. Because we can't compute the ancestors from wctx, we skip to its parents. 'None' is not needed to be included in _ancestrycontext because it is used for a membership test of filelog revisions. repo: https://hg.mozilla.org/releases/mozilla-beta/#062e49bcb2da command: hg annotate -r 'wdir()' gfx/thebes/gfxWindowsPlatform.cpp before: 51.520 sec after: 1.780 sec

committablefilectx: propagate ancestry info to parent to fix annotation Before this patch, annotating working directory could include wrong revisions that were hidden or belonged to different branches. This fixes wfctx.parents() to set _descendantrev so that all ancestors can take advantage of the linkrev adjustment introduced at c48924787eaa. _adjustlinkrev() can handle 'None' revision thanks to 5a12ef618c03.