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

extensions: if on py3 and propname is a bytestr, convert to sysstr Property names are unicodes on Python 3. Differential Revision: https://phab.mercurial-scm.org/D296

pushvars: add a coreconfigitem for push.pushvars.server Differential Revision: https://phab.mercurial-scm.org/D359

phabricator: add phabupdate command to update status in batch Changing status (accept, etc) on the webpage is not very convenient - currently there is no way to accept (or abandon etc.) a stack using a single click or command. This patch adds a `phabupdate` command that could be used to change status in batch. It also supports `--comment` which will write a comment on the last revision, which is similar to what we do using emails. Differential Revision: https://phab.mercurial-scm.org/D127

phabricator: add status to revision query language This patch adds status words (ex. `abandoned`, `accepted`, `needsreview`, `needsrevision`, `closed`) to the revision query language so people can select revision in a more flexible way. Test Plan: Try something like `phabread ':2 & accepted'`, `phabread ':105 - closed` and make sure they have desired outputs. Differential Revision: https://phab.mercurial-scm.org/D126

phabricator: add a small language to query Differential Revisions Previously, `phabread` can only be used to read a single patch, or a single stack of patches. In the future, we want to have more complex queries like filtering with status (open, accepted, closed, etc), or maybe more complex like filtering by reviewers etc. The command line flag approach won't scale with that. Besides, we might want to have other commands to update Differential Revision status in batch, like accepting a stack using a single command. Therefore, this patch adds a small language. It has basic set operations: `&`, `+`, `-` and an ancestor operator to support `--stack`. Test Plan: Try querying this Phabricator instance: hg phabread 1+2 # 1, 2 hg phabread D2+D1 # 2, 1 hg phabread ':118-115+:2-1' # 114, 116, 117, 118, 2 hg phabread '((:118-(D115+117)))&:117' # 114, 116 hg phabread ':2&:117' --debug # differential.query is called only once Make sure the output is expected and prefetch works. Differential Revision: https://phab.mercurial-scm.org/D125

phabricator: change "readpatch" to be more flexible Previously, `readpatch` and `querydrev` take a same `params` and `stack` parameters. This patch changes `readpatch` so it takes the output of `querydrev`, not the input of `querydrev`. This makes the code more flexible and cleaner. Differential Revision: https://phab.mercurial-scm.org/D124

filemerge: extract `_picklabels` as a helper function This shortens `simplemerge()` and is a bit cleaner, IMO. Differential Revision: https://phab.mercurial-scm.org/D376

simplemerge: write merge result to the localctx, if passed Differential Revision: https://phab.mercurial-scm.org/D375

simplemerge: use contexts to read file data from, if passed Differential Revision: https://phab.mercurial-scm.org/D374

filemerge: pass contexts to simplemerge Otherwise, this should be a no-op. Differential Revision: https://phab.mercurial-scm.org/D373

simplemerge: add optional context parameters to simplemerge Rename the existing parameters for clarity. These will, in subsequent patches, allow callers to redirect reads (of the three sides of the merge) and writes (of the result) to the given contexts, instead of using the filesystem. While in most cases, the writes will go to a workingfilectx, this opens the door for it to be a memfilectx in the case of an in-memory merge. Repo will be necessary in a subsequent comit. Differential Revision: https://phab.mercurial-scm.org/D372

simplemerge: extract verifytext as a helper function This will be used in a subsequent commit. Differential Revision: https://phab.mercurial-scm.org/D371

commit: use context manager with dirstateguard When I wrote 5ac845ca059a (commit: don't let failed commit with --addremove update dirstate (issue5645), 2017-07-31), Durham's 609606d21765 (rebase: use one dirstateguard for when using rebase.singletransaction, 2017-07-20) had not yet landed, so I had to write it in the old-fashioned way. Now that Durham's patch is in, we can simplify by using a context manager. Differential Revision: https://phab.mercurial-scm.org/D406

commit: move dirstateguard creation out of try-block This is just a simple refactoring to make the next patch simpler. If the dirstateguard constructor raises an exception, the finally-block won't do anything anyway, so this is functionally equivalent (and there is no except-block). Differential Revision: https://phab.mercurial-scm.org/D405