log: mention ordering a user complained that hg help log did not hint how to sort the output by date

transaction: remove 'if True:' This seems to be left over from 96dd93de548c (transaction: reorder unlinking .hg/journal and .hg/journal.backupfiles, 2015-10-16).

lazymanifest: check more return values in filtercopy Spotted by Bryan O'Sullivan (and vexingly not the static analyzer I've been using.)

mercurial: pass ui to extensions.load (issue5007) extensions.load does need ui argument to print error if an extension fails to load.

test-patchbomb.t: drop a number of now-redundant uses of "-n"

test-patchbomb.t: test use of sendmail program

merge: add options to warn or ignore on colliding unknown files A 'colliding unknown file' is a file that meets all of the following conditions: - is untracked or ignored on disk - is present in the changeset being merged or updated to - has different contents Previously, we would always abort whenever we saw such files. With this config option we can choose to warn and back the unknown files up instead, or even forgo the warning entirely and silently back the unknown files up. Common use cases for this configuration include a large scale transition of formerly ignored unknown files to tracked files. In some cases the files can be given new names, but in other cases, external "convention over configuration" constraints have determined that the file must retain the same name as before.

batchget: add support for backing up files We're going to use this in an upcoming feature.

merge: add a new 'backup' argument to get actions We're going to use this in an upcoming patch to back untracked files up when they're replaced by tracked ones.

_checkunknownfiles: turn 'conflicts' into a set We'll check for membership in this set in an upcoming patch.

checkunknownfiles: make control flow clearer In particular, make it clear that we only check for and abort on conflicts if force is not true.

_checkunknownfiles: rename 'aborts' to 'conflicts' In upcoming patches we'll be able to do more useful things than aborting.

origpath: move from cmdutil to scmutil This is a lower-level function so it doesn't need to be in cmdutil, and putting it here avoids a bunch of potential import cycle issues.

revlog: remove unnecessary cache validation in _chunks Previously, we likely called _chunkraw() multiple times in order to ensure it didn't change out from under us. I'm pretty certain this code had its origins in the days where we attempted to have thread safety of localrepository and thus revlog instances. revlog instances are already not thread safe for writing. And, as of Mercurial 3.6, hgweb uses a separate localrepository instance per request, so there should only be a single thread reading a revlog at a time. We more or less decided that attempting to make classes like revlog thread safe is a lost cause. So, this patch removes thread safety from _chunks. As a result, we make one less call into _chunkraw() when the initial read isn't serviced by the cache. This translates to savings of 4 function calls overall and possibly prevents the creation of an additional buffer view into the cache. I doubt this translates into any real world performance wins because decompression will almost certainly dwarf time spent in _chunks(). But it does make the code simpler, so it is an improvement.

revlog: return offset from _chunkraw() A subsequent patch will refactor _chunks() and the calculation of the offset will no longer occur in that function. Prepare by returning the offset from _chunkraw().

verify: get rid of some unnecessary local variables Now that all the major functionality has been refactored out, we can delete some unused local variables.

verify: move changelog verificaiton to its own function This makes verify more modular so extensions can hook into it.

verify: move manifest verification to its own function This makes verify more modular, making it easier for extensions to extend.

verify: move file cross checking to its own function This is part of making verify more modular so extensions can hook into it.

verify: move filelog verification to its own function This makes verify more modular so extensions can hook in more easily.

verify: move checkentry() to be a class function This is part of making verify more modular so extensions can hook into it.

verify: move checklog() onto class This is part of an effort to make verify more modular so extensions can hook into it.

dockerrpm: fix CentOS 5 RPMs (issue4977) The older rpmbuild in CentOS 5 fails if some of the output directories have not been created yet. This change results in creating those directories.

check-code: enforce strict spacing around assignment