run-tests: pre instantiate pygments objects Pre instantiate pygments objects to minimize overhead (cf. 20436925e080)

merge with stable

rebase: only change self.state when collapsing in _finishrebase When the code executes to _finishrebase, self.state should be populated with correct destinations and do not need to be written to a node. The code was introduced by 8dc45c9059, which seems to avoid setting state values to None but it didn't provide more details. Differential Revision: https://phab.mercurial-scm.org/D346

rebase: choose merge base without unwanted revisions Previously, when there are 2 merge base candidates, we choose p1 blindly, which may make the merge result to have "unwanted content". This patch makes rebase smarter - choose a merge base that does not have "unwanted revs" if possible. Since we don't really have a good solution when there are "unwanted revs", abort in that case. Differential Revision: https://phab.mercurial-scm.org/D340

templatekw: choose {latesttag} by len(changes), not date (issue5659) As Augie reported in the bug, the current heuristic of choosing the best tag of a merge commit by taking the one with newest tag (in terms of tagging date) currently fails in the Mercurial repo itself. Copying the example from Yuya: $ hg glog -T '{node|short} {latesttag}+{latesttagdistance}\n' \ -r '4.2.3: & (merge() + parents(merge()) + tag())' o 02a745c20121 4.2.3+5 |\ | o 86aca74a063b 4.2.3+4 | |\ | | o e6d8ee3c9ec3 4.3-rc+109 | | | | | ~ o | a3ce07e2dde5 4.3.1+2 : | o | 3fee7f7d2da0 4.3.1+0 |/ o 98e990bb7330 4.2.3+3 |\ | ~ o 506d7e48fbe6 4.2.3+2 : o 943c91326b23 4.2.3+0 | ~ It seems to me like the best choice is the tag with the smallest number of changes since it (across all paths, not the longest single path). So that's what this patch does, even though it's costly. Best-of-5 timings for Yuya's command above shows a slowdown from 1.293s to 1.610s. We can optimize it later. Differential Revision: https://phab.mercurial-scm.org/D447

tests: use graph log in {latesttag} tests The tests are much easier to read if one does not have to re-read the setup part all the time to understand the graph shape. Differential Revision: https://phab.mercurial-scm.org/D446

demandimport: disable if chg is being used In chg's case, making modules lazily loaded could actually slow down things since chg pre-imports them. Therefore disable demandimport if chg is being used. This is not done by setting `HGDEMANDIMPORT` chg client-side because that has side-effects on child processes (hooks, etc). Differential Revision: https://phab.mercurial-scm.org/D351

demandimport: move HGDEMANDIMPORT test to __init__.py The logic is now shared between demandimport{2,3}. Differential Revision: https://phab.mercurial-scm.org/D445

log: add a "graphwidth" template variable Wrapping text in templates for 'hg log --graph' can't be done very well, because the template doesn't know how wide the graph drawing is. The edge drawing function needs to know the number of lines in the template output, so we need to also determine how wide that drawing would be before we call the edgefn or evaluate the template. This patch makes edgefn compute the graph width and pass it into the template so that we can do something like this: COLUMNS=10 hg log --graph --template "{fill(desc, termwidth - graphwidth)}" @ a a a a | a a a a | a a a a o a a a |\ a a a | | a a a | | a a a Using extensions to do this would be relatively complicated due to a lack of hooks in this area of the code. In the future it may make sense to have a more generic "textwidth" that tells you how many columns you can expect to fill without causing the terminal to wrap your output. I'm not sure there are other situations to motivate this yet, or if it is entirely feasible. Differential Revision: https://phab.mercurial-scm.org/D360

obsmarker: fix precnode deprecation The deprecation message for marker.precnode was wrong. Fix the typo. Differential Revision: https://phab.mercurial-scm.org/D413

obsmarker: precnode was renamed into prednode Update all calls to formatter.write first arguments to remove references to precnode and use prednode consistently everywhere. Differential Revision: https://phab.mercurial-scm.org/D414

revset: mark evolution-related revsets as experimental Differential Revision: https://phab.mercurial-scm.org/D416

push: fix docsstring Seems the code block misses `::`. This patch makes sure `[push]` and `pushvars.server = true` are in two lines. Differential Revision: https://phab.mercurial-scm.org/D411

py3: select input or raw_input by pycompat This seems slightly cleaner.

py3: make encoding.strio() an identity function on Python 2 It's the convention the other encoding.str*() functions follow. To make things simple, this also drops kwargs from the strio() constructor.

templatekw: specify plural form of instability Follows up 40739aef97f7.

templatekw: rename termwidth() per convention

rebase: optimize "source" calculation in adjustdest The "source" variable is calculated inside a loop but it does not depend on loop variables. Therefore move it outside the loop. Differential Revision: https://phab.mercurial-scm.org/D345

rebase: remove "state >= revtodo" condition Now the minimal value of state is revtodo, that condition is always true, therefore removed. Differential Revision: https://phab.mercurial-scm.org/D344

rebase: remove self.destancestors The state is no longer used after calculating "self.external", therefore removed. Differential Revision: https://phab.mercurial-scm.org/D343

rebase: remove rebaseset from _checkobsrebase The parameter is not used. Therefore removed. Differential Revision: https://phab.mercurial-scm.org/D85

rebase: remove revignored and nullmerge states They are no longer necessary to make rebase behavior correct. Therefore remove them to make the code cleaner and easier to reason about. Differential Revision: https://phab.mercurial-scm.org/D26

rebase: remove messages for nullmerge and revignored (BC) These states will be removed to make the code cleaner and more robust. Remove their messages first to make review easier. Differential Revision: https://phab.mercurial-scm.org/D25

rebase: remove revprecursor and revpruned states (BC) Those states are no longer necessary for rebase to function properly. Remove them to make the code cleaner. Marked as BC because in a corner case where working parent is obsoleted, and is skipped for rebase, we no longer move working parent after rebase completes. That is better since if working parent is obsoleted, it should be the user moving working parent back there (after a rebase) explicitly, in that case, we shouldn't move working parent again. Differential Revision: https://phab.mercurial-scm.org/D24

rebase: move obsoleted not rebased messages earlier (BC) A later patch will clean up those states. This patch moves the messages earlier. Marked as BC since the order of message has changed. Differential Revision: https://phab.mercurial-scm.org/D23

rebase: extract ctx description logic to a function The function will be used in a later patch. Differential Revision: https://phab.mercurial-scm.org/D22

python3: whitelist another *13* tests that now pass Differential Revision: https://phab.mercurial-scm.org/D302

py3: introduce a wrapper for __builtins__.{raw_,}input() In order to make this work, we have to wrap the io streams in a TextIOWrapper so that __builtins__.input() can do unicode IO on Python 3. We can't just restore the original (unicode) sys.std* because we might be running a cmdserver, and if we blindly restore sys.* to the original values then we end up breaking the cmdserver. Sadly, TextIOWrapper tries to close the underlying stream during its __del__, so we have to make a sublcass to prevent that. If you see errors like: TypeError: a bytes-like object is required, not 'str' On an input() or print() call on Python 3, the substitution of sys.std* is probably the root cause. A previous version of this change tried to put the bytesinput() method in pycompat - it turns out we need to do some encoding handling, so we have to be in a higher layer that's allowed to use mercurial.encoding.encoding. As a result, this is in util for now, with the TextIOWrapper subclass hiding in encoding.py. I'm not sure of a better place for the time being. Differential Revision: https://phab.mercurial-scm.org/D299

python3: whitelist four more passing tests Differential Revision: https://phab.mercurial-scm.org/D298

extensions: don't give AttributeError bytes message on Python 3 Differential Revision: https://phab.mercurial-scm.org/D353