templater: load aliases from [templatealias] section in map file This seems sometimes useful as an alias can be a function, but a template fragment can't.

templater: load template fragments from [templates] section in map file This allows us to %include map-cmdline.<style> file in our .hgrc files. The syntax is slightly different as hgrc doesn't support loading an external template file, but map-cmdline files don't use this feature, so the syntax can be considered identical in practice. Unnamed section is remapped for backward compatibility.

config: allow remapping the default section The next patch depends on it. It doesn't make sense that the default section can't be remapped with {'': whatever}.

templater: simplify merge of __base__ dicts by reading it first

phase: add a dedicated pretxnclose-phase hook This new hook mirror the newly introduced 'txnclose-phase' but can abort the transaction.

phase: add a dedicated txnclose-phase hook The new 'txnclose-phase' hook expose the phase movement information stored in 'tr.changes['phases]'. To provide a simple and straightforward hook API to the users, we introduce a new hook called for each revision affected. Since a transaction can affect the phase of multiple changesets, updating the existing 'txnclose' hook to expose that information would be more complex. The data for all moves will not fit in environment variables and iterations over each move would be cumbersome. So the introduction of a new dedicated hook is preferred in this changesets. This does not exclude the addition of the full phase movement information to the existing 'txnclose' in the future to help write more complex hooks.

bookmark: add a dedicated pretxnclose-bookmark hook This new hook mirror the newly introduced 'txnclose-bookmark' but can abort the transaction.

bookmark: add a dedicated txnclose-bookmark hook The new 'txnclose-bookmark' hook expose the bookmark movement information stored in 'tr.changes['bookmarks]'. To provide a simple and straightforward hook API to the users, we introduce a new hook called for each bookmark touched. Since a transaction can affect multiple bookmarks, updating the existing 'txnclose' hook to expose that information would be more complex. The data for all moves might not fit in environment variables and iterations over each move would be cumbersome. So the introduction of a new dedicated hook is preferred in this changeset. This does not exclude the addition to the full bookmark information to the existing 'txnclose' in the future to help write more complex hooks.

tweakdefaults: make commands.update.check be `noconflict` This is the second-safest option we have to offer in `updatecheck`, with `abort` being the safest and `linear` being the default. At the sprint we discussed how much `none` and `linear` make us all uncomfortable, and how we'd like to move the default behavior if we can. I'm not sure we can get away with actually changing the out of the box default behavior, but we can at *least* do this. Differential Revision: https://phab.mercurial-scm.org/D1062

hgweb: fix logging to use native strings as appropriate Kind of a tangled mess, but now logging works in both Python 2 and 3. # no-check-commit because of the interface required by Python's HTTP server code. Differential Revision: https://phab.mercurial-scm.org/D1080

config: graduate experimental.updatecheck to commands.update.check .. feature:: New `commands.update.check` feature to adjust constraints on when `hg update` will allow updates with a dirty working copy. also .. bc:: The `experimental.updatecheck` name for the new `commands.update.check` feature is now deprecated, and will be removed after this release. Differential Revision: https://phab.mercurial-scm.org/D1070

hgweb: rewrite most obviously-native-strings to be native strings This clearly won't be everything, but it unblocks a fair amount of stuff here. Differential Revision: https://phab.mercurial-scm.org/D1079

hgweb: use native strings consistently for querystring parsing Differential Revision: https://phab.mercurial-scm.org/D1078

hgweb: rewrite two X or Y and Z ad-hoc ternaries with Y if X else Z Just easier to muddle through for my brain now that I don't see the old pattern much anymore. Differential Revision: https://phab.mercurial-scm.org/D1077

httppeer: use native strings for headers On Python 3, we need to use unicodes, rather than bytes. This lets test-pull.t get a lot further along. Differential Revision: https://phab.mercurial-scm.org/D887

hgweb: more native string treatment in query string parsing Differential Revision: https://phab.mercurial-scm.org/D1076

httppeer: pass url to urllib as native str, not bytes Differential Revision: https://phab.mercurial-scm.org/D1075

tersestatus: rework dirnode and tersedir docstrings Follow-up on refactorings 3d6d4b12128e and 5d98674df18a of the original changeset 7e3001b74ab3 by updating the docstrings of dirnode class and tersedir function: * rewrite dirnode.iterfilepaths()'s docstring (the method got renamed and reimplemented in 5d98674df18a); * simplify and update dirnode.tersewalk() to remove reference to 'self' and 'tersedict'; * use the imperative form of verbs in the first sentence of all docstrings. Differential Revision: https://phab.mercurial-scm.org/D1072

bitmanipulation: reformat with clang-format Mostly un-wrapping over-wrapped definitions. Differential Revision: https://phab.mercurial-scm.org/D1069

hghave: add a check for clang-format Differential Revision: https://phab.mercurial-scm.org/D1068

python3: use our bytes-only version of cgi.escape everywhere As suggested by Yuya in D965. Differential Revision: https://phab.mercurial-scm.org/D1067

url: add cgi.escape equivalent for bytestrings This seems like a sensible enough place to put it. Differential Revision: https://phab.mercurial-scm.org/D1066

python3: move from using func_name to __name__ Previously reviewed as D964, but required some fixups and therefore seems to need a new revision. Differential Revision: https://phab.mercurial-scm.org/D1065

tests: add globs for Windows