i18n: omit redundant translatable synopsis text to avoid xgettext warning This empty translatable synopsis text causes xgettext warning below: Empty msgid. It is reserved by GNU gettext: gettext("") returns the header entry with meta information, not the empty string. This "synopsis" argument of @command annotation is omitable.

i18n: avoid substitution of PYFILES at runtime for readability of output This substitution decreases readability of "make update-pot" output, because PYFILES consists of many files. This patch makes "make update-pot" show "find mercurial hgext doc -name '*.py'" instead of many *.py files at runtime.

util: make new timedcmstats class Python 3 compatible

fix: add a monkey-patchable point after all new revisions have been committed Differential Revision: https://phab.mercurial-scm.org/D4048

help: add quotes to a few commands we point to I didn't know that 'hg help "revsets.x or y"' was valid syntax, so the quoting is extra useful here to make it clear that that is an actual command. Differential Revision: https://phab.mercurial-scm.org/D4059

linelog: port to Python 3 Differential Revision: https://phab.mercurial-scm.org/D4051

exchange: move simple narrow changegroup generation from extension The narrow extension completely replaced the function generating the changegroup part when a narrow changegroup was requested. Previous commits have taught the in-core changegroup code how to filter files based on a matcher. This commit teaches the in-core bundle2 part generation code to construct a matcher based on arguments. It will also emit a bundle2 part describing the narrow spec. I believe the changegroup part generation code in the narrow extension is now limited to ellipsis serving mode. i.e. core is now capable of narrow changegroup generation when ellipsis mode is disabled. Differential Revision: https://phab.mercurial-scm.org/D4014

exchange: make narrow ACL presence imply narrow=True And refactor the logic for determining when to invoke our custom changegroup part function so it is only conditional on narrow being set. This makes it more obvious under which conditions we should invoke the custom implementation. Also use raw strings so **kwargs works on Python 3. Differential Revision: https://phab.mercurial-scm.org/D4013

changegroup: inline prune() logic from narrow prune() needs to ellide manifests that aren't part of the narrow matcher. The code is violating storage abstractions, so a comment has been added. Keep in mind the impetus for moving this code to core is so changegroup code can be refactored to be storage agnostic. Differential Revision: https://phab.mercurial-scm.org/D4012

fileset: extract language processing part to new module (API) I'll add a couple more functions that work on parsed tree. % wc -l mercurial/fileset*.py 559 mercurial/fileset.py 135 mercurial/filesetlang.py 694 total