topic: merge _showlasttouched logic into _listtopics Makes --age work with --verbose.

topic: simplify _showlasttouched and _getlasttouched (and its data structure)

branching: merge with stable

split: add a --interactive flag While the interactive mode is useful for end-users, there are some cases where they don't need the interactivity overhead. Moreover, this allow the split command to be used in automated scripts.

split: take file patterns to limit selection on matching file patterns When splitting a big changeset, the user often wants to extract specific files from the changeset while leaving the others files intact. The split command can now be called with multiple file patterns. Only files that match one of the patterns will be shown in the interactive selection. The user will be able to create one or more commits with those files. When the user finishes splitting the matching files, a last commit will be made with the remaining of the files.

split: only accept explicit revision through the `-r` option We are about to introduce new non-optionnal arguments to defines files patterns. To avoid confusion and to be closer to the standard options, only accepts revisions with the `-r` option.

issue-6028: resolves 6028 - return (False, ".") instead of (False, '') Since 4.8, repo[] no longer takes an empty string, so we update to a valid with similar semantic. This value is strange and we should probably use an actual node ID here, however, this is an independent issue.

branching: merge with stable

tests: add sparserevlog cap since hg now has sparse revlogs by default CORE-TEST-OUTPUT-UPDATE: 3764330f76a6

split: rework the prompt to be more standard We dropped the initial capital and moved to a positive question.

split: add a option to discard remaining change during split This is useful to drop unwanted remaining change spotted during the split.

split: add a way to abort a split from the prompt This prompt is asking the user about the next step. Offering to abort there make sense.

split: add a help entry to the final prompt We are about to add more option in this prompt. Adding a way to document then seems like a good first step.

topic: make revset argument messages be similar to such messages in core

tests: don't forget to add hg serve pid to DAEMON_PIDS in test-wireproto.t Otherwise it leaves a process running after each run-tests.py launch.

test: adapt to change output change on default We now have a `wcache` directory in `.hg`.

safeguard: don't reimplement auto-publish if it's in core (will be in 4.9)

safeguard: the new default for auto-publish is 'publish'

stack: add a --children flag to stack If a commit in the stack has been merged outside the current topic, show a trailing status of (external-children)

extensions: avoid shadowing imported module names with exthelper methods The previous code worked, but confused pyscripter.

extensions: add fileset support to exthelper This will be tested by using it in lfs.

extensions: add uipopulate() support to exthelper

exthelper: clarify copyright and licence for the module The exthelper is quite useful and Matt Harbison is looking into having it upstreamed. We clarify the legal situation first.

packaging: merge with version 8.3.2

packaging: mark development version This help reduce the confusion when people install from source.

Added tag 8.3.2 for changeset 7edc5c148df0

packagin: prepare release 8.3.2

test-compat: merge mercurial-4.4 into mercurial-4.3

test-compat: merge mercurial-4.5 into mercurial-4.4

test-compat: merge mercurial-4.6 into mercurial-4.5

test-compat: merge mercurial-4.7 into mercurial-4.6

test-compat: merge stable into mercurial-4.7

changelog: add information about the topic message improvements

branching: merge with stable

evolve: update the abort to a ProgrammingError This error should be a ProgrammingError and as Pierre-Yves David said ProgrammingError type did not existed when this code was written, so lets update this now.

topics: improve the message around topic changing The new message says 'cleared' when topic name is cleared, if we change to a new topic name, it mentions the new topic name too.

tests: fix for POSIX compliance * Mac ls will exit with a different message and exit code [1], replace with grep (which is what mercurial tests do) * POSIX echo has no -n switch, use printf instead

style: remove unused variables Both `as e` references are not used and can go.

evolve: fix a documentation typo

compat: drop 4.3 related obsfate code All the necessary piece are supported starting 4.4.

compat: drop code dealing with incompatibility for --publish with 4.3 We dropped 4.3 support.

compat: clarify when some conditional are used The middle condition was an intermediate state that never existed into a release. We can safely drop it.

compat: drop 4.3 "new troubles" report code This is supported natively for Mercurial 4.4 and above.

compat: drop 4.3 wrapping of createmarker for effect flag support This is supported natively in 4.4 and above.

compat: drop 4.3 monkey patch of `copies.mergecopies`

compat: drop 4.3 compatiblity code for `obsutil.allprecursors` function

compat: drop 4.3 compatiblity code for `ui.edit` method

compat: drop 4.3 compatiblity code for 'successors' revset

compat: drop 4.3 compatiblity code for 'precursors' revset

compat: drop Mercurial 4.3 support for exthelper The last release email noted plans to drop 4.3 and 4.4 support in the next feature release. I'd like to move this code into core, and dropping this should allow the class to be copied in unmodified.

compat: update metadata about minimum ag version

next: solve the issue of `next` get confused by split This patch solve a problem of next command which get confused by split. Let me describe how it was getting confused: Initial state of repo: A---B---C After splitting B to (B1,B2): @ A---B1---B2 \ ---B---C X * (note: C is orphan; checkedout to B1) Lets make an amend on B1: @ B1' / A---B1---B2 \ X * \ ---B---C X * Now, if run `hg next` (--evolve is True by default now): $ it would give you choice to choose from B2 and C thinking that C could also be a possbile children for B1, instead of stablizing B2 on B1. I fixed this problem by filtering those aspiring children which can be stablized on one of the aspiring children itself. Changes made in test-prev-next.t shows the changed expected behaviour.

next: add test which shows that `next` get confused by split

cleanup: avoid a Yoda condition

evolve: modify and move the comment to appropriate position

next: update the command description Now, if necessary next command evolve the next child revision by defualt. You don't need to pass the --evolve flag.

next: make next command --evolve by default Before this patch, if we need to evolve to update to the next child, we were suggesting the user to use --evolve flag. This patch make some changes to evolve by default in that conditions. After making next command to evolve by default we have to consider the following points: 1) If we don't need to evolve while updating to the next child: a) And if wdir is dirty, we suggest to use --merge flag b) if wdir is clean, we simply update to next child (if ambiguous, prompt the user to select one) 2) If we need to evolve: a) when wdir is dirty, we suggest the user to use `hg shelve` first, to make wdir clean. As we don't support --merge while evovling. b) when wdir is clean, we evolve the next cset. Changes made in test-prev-next.t reflect the changed behaviour.

safeguard: allow push to succeed (and without warning) with --publish

topic: only add --publish flag to push if it's not already there

safeguard: check auto-publish value before sending listkeys command Always sending listkeys command is just wasteful, let's first make sure users even care about auto-publish behavior.

style: silence another flak8 warning Default should be green now.

oops: backed out changeset df22f010cf24 pushed by error The changeset still fails some test

next: make next command --evolve by default Before this patch, if we need to evolve to update to the next child, we were suggesting the user to use --evolve flag. This patch make some changes to evolve by default in that conditions. After making next command to evolve by default we have to consider the following points: 1) If we don't need to evolve while updating to the next child: a) And if wdir is dirty, we suggest to use --merge flag b) if wdir is clean, we simply update to next child (if ambiguous, prompt the user to select one) 2) If we need to evolve: a) when wdir is dirty, we suggest the user to use `hg shelve` first, to make wdir clean. As we don't support --merge while evovling. b) when wdir is clean, we evolve the next cset. Changes made in test-prev-next.t reflect the changed behaviour.

next: improve the message for dirty working copy with --evolve This will be important soon when --evolve will be the default.

next: use the `hint` argument of bail if changed The argument is availabel since Mercurial 4.1. So let's use it.

prev: use the `hint` argument of bail if changed The argument is availabel since Mercurial 4.1. So let's use it.

next: explicitly specify --no-evolve in the tests The default value for this flag is about to switch.

branching: merge with stable

style: fix various flake8 warning

next: set if we need to evolve or not; also move logic to appropriate pos set the value `needevolve` and also move the logic to find aspiringchildren to appropriate position i.e before we suggest user to use other flags like --merge.

next: move some code to prepare for `next --evolve` by default Moved some values before the block where we suggest the user to use --merge flag. As we would need these values to find if we need to evolve or not before we can suggest user to use `--merge` flag. We will suggest user to use `--merge` flag only when we don't need to evolve. Because currently we don't support both --evolve(going to be True by default) and --merge at the same time.

branching: merge with stable

topic: improve UX by using pager only when we should Before this patch we were using pager in every case of topic command, either it is setting up a new topic or clearing the active topic. After this patch it will not use pager in following commands: $ hg topic [TOPIC] -r [rev] $ hg topic --clear

evolvecmd: _possibledestination() skip visiting empty parent I see that even in the case when "parent == -1" we are visiting that also and find succsets for that and in last -1 is being added in the set of possible destination. Why not skip that?

pick: `hg help` was not showing the full cmd desc of `pick` after running command `hg help` it was not including the second line of command description. I guess it picks the firstline only. So I moved that part in first line of cmd description.

test-compat: merge mercurial-4.4 into mercurial-4.3

test-compat: merge mercurial-4.5 into mercurial-4.4

test-compat: merge mercurial-4.6 into mercurial-4.5

test-compat: merge mercurial-4.7 into mercurial-4.6

test-compat: merge stable into mercurial-4.7

compat: fix fixedcopytracing compatibility with mercurial 4.8 and narrow Mercurial 4.8 version of _fullcopytracing includes some new narrow code. As https://phab.mercurial-scm.org/D3896 has not yet landed, update fixedcopytracing behind a version detection condition. This was spotted by Augie Fackler.

utility: don't translate commit messages in revselection prompt (issue6016) Commit messages should not be translated and should be shown the same. I am not sure if I can add a test for this by creating a commit with non-ascii character in commit message.

evolve: use stack template in --continue case also We use stack indexes (s#) in evolve msging when revs being evolved are in active topic. Before this patch we are not covering the --continue case. So this patch cover the same and use the stack indexes s# even when we continue an interrupted evolve. In this patch I used the same concept (to check if we should use s#) as we are using in cases other than `--continue`. Thanks to PYD for refactoring those lines. Changes in tests also reflects the expected behaviour.

evolve: add test showing currently stackalias fails in --continue case

branching; merge with stable

packaging: mark version as devel version This avoid confusion from people installing from source.

Added tag 8.3.1 for changeset b90422a11a88

packaging: prepare version 8.3.1

test-compat: merge mercurial-4.4 into mercurial-4.3

test-compat: merge mercurial-4.5 into mercurial-4.4

test-compat: merge mercurial-4.6 into mercurial-4.5

test-compat: merge mercurial-4.7 into mercurial-4.6

test-compat: merge stable into mercurial-4.7

evolve: do not try to display stack index of changeset who do not have one

evolve: check if we should use stack template for each item in the stack We should probably just track the current topic and move all the logic in the template itself. However, this is a good first step.

branching: merge stable back into default

test-compat: merge mercurial-4.4 into mercurial-4.3

test-compat: merge mercurial-4.5 into mercurial-4.4

test-compat: merge mercurial-4.6 into mercurial-4.5

test-compat: merge mercurial-4.7 into mercurial-4.6

test-compat: merge stable into mercurial-4.7

branching: revert test outptu change for 4.7

pullbundle: drop erroneous flagging of the command as basic This is a debug command, not a basic part of the UI.

test-compat: backed out changeset ba1e83c841f2 Preparing the branch for 4.8.

test-compat: backed out changeset b0084d599112 Preparing the branch for 4.8.

test-compat: backed out changeset e2d083cc447e Preparing the branch for 4.8.

test-compat: backed out changeset ccbfbeee6cf3 Preparing the branch for 4.8.

test-compat: backed out changeset 7091f7215651 Preparing the branch for 4.8.

test-compat: backed out changeset 8eec9422bd8e Preparing the branch for 4.8.

branching: merge stable into default

branching: start test compatibility branch for Mercurial 4.7 Mercurial 4.8-rc0 have been released

topic: add the changelog argument to branchinfo() 47c03042cd1d in core added a changelog argument to revbranchcache.branchinfo() and we wrap that function in topic extension. So let's add this optional argument in topic extension too.

evolve: adapt for changed @command decorator Core changed the hacky "^command" syntax to be a proper decorator option in fa88170c10bb (help: adding a proper declaration for shortlist/basic commands (API), 2018-10-12). This patch makes evolve compatible with that.

topicidx: stop assigning index number to obsolete changesets Obsolete changeset are no longer part of the stack, the old logic tried to assigns them the index of their successors but this is flacky and error prone. So we stop doing so.

stack-index: add some test featuring content diversion This will be useful to display various issues.

pullbundle: drop erroneous flagging of the command as basic This is a debug command, not a basic part of the UI.

topic: add the changelog argument to branchinfo() 47c03042cd1d in core added a changelog argument to revbranchcache.branchinfo() and we wrap that function in topic extension. So let's add this optional argument in topic extension too.

topics: "prairie" is a not an animal (AFAIK, anyway)

tests: remove a"| head -n 2" that just hides an error code The output from core used to be longer and it made sense, but no longer does. CORE-TEST-OUTPUT-UPDATE: 5199c5b6fd29

evolve: adapt for changed @command decorator Core changed the hacky "^command" syntax to be a proper decorator option in fa88170c10bb (help: adding a proper declaration for shortlist/basic commands (API), 2018-10-12). This patch makes evolve compatible with that.

commands: adjust metavariables as appropriate Apart from looking better in hg help command, these strings are also helpful when generating shell completions programmatically.

branching: merge with default

branching: preserve the expected output on default

evolvecmd: use modern vocabulary in help text for evolve

evolvecmd: mark flags with old instability names as deprecated

packaging: mark as development version

Added tag 8.3.0 for changeset 45d4b49d81d9

packaging: prepare release 8.3.0

pullbundle: document working version and update changelog to mention it

test-compat: merge mercurial-4.4 into mercurial-4.3

test-compat: merge mercurial-4.5 into mercurial-4.4

test-compat: merge mercurial-4.6 into mercurial-4.5

test-compat: merge stable into mercurial-4.6

topic: fix '{topicidx}' keyword registration for mercurial <= 4.5

branching: prepare release 8.3.0

test: other harmless output change These are new test that need adjustment for 4.7 output.

changelog: mention the fix of cache warming on hg strip

test: backed out output changes from changeset 6f391c2a773b

test: backed out test output changes from changeset ef22eef37ecc

test: backed out output changes from changeset 0171a7ceb574

test: backed out output changes from changeset dfa69b5ece87

test: backed out output changes from changeset 01ad46551d7c

prev: also use stack shortcut in output when possible This mirror what `hg evolve` is doing since cc3a0b13ae57.

next: also use stack shortcut in output when possible This mirror what `hg evolve` is doing since cc3a0b13ae57.

branching: merge stable into default

rewind: alias the command to undo This is a step in unifiying rewind and undo and not talk about them as different commands or concepts. If there exists rewind command, that should be an alias of undo and the vice versa. The exact implmentation detail and how the command works etc. is a different thing but there should be just one command.

changelog: add a line about the usage of s# in evolve

caches: no longer warm the cache on strip in "auto" mode Before this patch, a strip would trigger a full and blind cache load that would include the stablerange cache. In repository like Mozilla this was a bit painful. The default "auto" mode now behave has intended.

evolve: use stack alias s# in `hg evolve` msgs As repository grows revision number lose their usefulness. To make it a little better than now, after this patch we will be using short stack aliases introduced by the topic extension (as displayed by `hg stack`). These stack aliases s# will be used only when user has enabled topic extension and his repo's current active topic is same as the revs to be evolved. For now, this patch doesn't cover `continue` case. I will discuss about this with Pierre-Yves David. Maybe we have to store the info in evolvestate that "we were using stack aliases".

evolve: extract displayer to _solveone() I extracted this displayer method to _solveone() so that it would be easy to pass a different template to show evolve msgs. In upcoming patches we will be using stacktemplate in some cases where we want to include stack alias s# in evolve msgs.

utility: add a template alias that will be used in evolve msgs This template use stack alias s# instead of rev number in messages printed when we run `hg evolve`. For example, this template's msgs will look like this: move:[s3] add aaa atop:[s2] add bbb move:[s4] add ccc I will be using this template in upcoming patches.

topic: add topicidx template keyword This keyword will be useful where we want to see the index of the changeset in the stack when we run `hg stack`.

changelog: fix version number

tests: update the test-topic.t with changes in core mercurial Yuya stabilized the -T option and now it's in help by default. CORE-TEST-OUTPUT-UPDATE: 0d703063d0c8

pullbundle: fix style warning

pullbundle: improves management of multiple branch while dealing with a head There were still case where a range was issued too early.

pullbundle: deal with head in a predicable order We use node order to make this repeatable from one clone to another. This is an arbitrary pick.

pullbundle: deal with another special case introduced by arbitrary ranges previous, we dealt with the case where the tippest subrange of the stable parent was too long. Now, we need to deal with the case where it is too small.

pullbundle: compat with Mercurial 4.7

pullbundle: add some information on the cached change This also adds a way to skip "caching" smaller range in the debugcommand (not in the extensions itself).

pullbundle: add data about the cached bundle size and hit

pullbundle: add a command to generate cache hit statistic This new command should help checking that the stable range produce reusable bundle.

pullbundle: point out the output flooding issue from core Right now, we don't have a reliable progress report when using pullbundle.

pullbundle: issue local branches in the right order

pullbundle: delay cache file opening Otherwise we can end-up with a too many file open at the same time.

pullbundle: improve slicing of the lower part of range The previous method could get confuse by merge and overslice. The new method is better at using sticking on power of two boundaries.

stablerange: fix slicing of arbitrary ranges Pull bundle trigger slicing from range with arbitrary initial skip. We have to adjust the current slicing to take this into account.

pullbundle: attempt to save stablerange cache after each computation Since we do not serve the full repository, we use more stablerange starting from a random point. These are probably not loaded yet and should be cached. This is best effort caching, if we can't save them we won't.

pullbundle: add basic extension metadata

pullbundle: add a config option for the cache directory

pullbundle: add an output about the time spent slicing the set This will be useful to monitor overall performance.

pullbundle: add extension documentation

pullbundle: add an extra test showing how cache are reusable We issue a single final pull, most of its item are reusable.

pullbundle: add caching logic We now only generate a bundle once (and store it to disk). If we need it again, we use it directly from disk.

pullbundle: slice pull into multiple ranges We subdivide the set of missing revisions into multiple "range" using the "stable range" data structure. This slicing aims at maximizing the capability of the resulting ranges.

pullbundle: initial commit Right now, we do not do any slicing, but we install the wrapping and the tests.

test: update output to make streamv2 capabilities CORE-TEST-OUTPUT-UPDATE: 4bd6e444c76f

branching: merge with stable

topic: respect preexisting 'topic' value on workingcommitctx Mercurial's core changeset: 6c8ceebce309 revealed an issue. If the creator of a workingcommitctx explicitly assigned a 'topic', it was silently overridden by the current active on. This break import of patch with topic information. We now respect preexisting topic information.

topic: add a compatibility to access transaction's names The attribute was made private in 4024c363cd33.

topic: add a compatibility to access transaction's validator The attribute was made private in ebbba3ba3f66.

evovle: remove redundancy in evolve output Copying the discription of this redundancy issue given by Pierre Yves David: When running `hg evolve` to stabilize orphan changeset output about the currently stabilized changeset is issued. For example: $ hg evolve move:[3] a3 atop:[4] a2 working directory is now at 7c5649f73d11 This output can become quite repetitive when orphan are stabilized atop each other. For example: $ hg evolve --all move:[8] dansk 2! atop:[10] dansk! merging main-file-1 move:[9] dansk 3! atop:[11] dansk 2! In this case it would be smoother to issue: $ hg evolve --all move:[8] dansk 2! atop:[10] dansk! merging main-file-1 move:[9] dansk 3! Since we are moving "dansk 3!" atop the changeset we just stabilized. When adding this be careful that we still want to issue the "atop" message in various cases: 1. first changesets in a stack 2. when the orphan is not stabilized atop previous one 3. when using hg evolve --continue to resume an evolution So, I have made the changes which also respect above listed three points. And changes in tests/test-evovle*.t reflecting the changed behavior.

amend: handle crash before transaction initialization with --patch The `tr` object can be None.

branching: merge with stable

obsdiscovery: adopt to calling convention change Upstream commits 71d83b315778 and abce899c985f changed the calling convention of setdiscovery._takefullsample(). We inspect the signature of the function before calling it so we can pass the proper arguments.

branching: merge stable into default

packaging: mark as development version This avoid confusion when people install version from source.

Added tag 8.2.1 for changeset c6362c4abd69

packagin: prepare release 8.2.1

test-compat: merge mercurial-4.4 into mercurial-4.3

test-compat: merge mercurial-4.5 into mercurial-4.4

test-compat: merge mercurial-4.6 into mercurial-4.5

test-compat: merge stable into mercurial-4.6

branching: merge stable into default

caches: issue both debug and blackbox log message This increase the odd someone looking for issue will find them.

cmdrewrite: rename variable and move it closer to where it is used Renaming to satisfy pep8-naming linter plugin, which complained on this variable because all-uppercase names are reserved for constants, and constants need to be module-level. This variable is not a good choice for moving up to the module level because it's used only in one place. Additionally, let's have it closer to the place it's actually used to potentially avoid an extra call to _() function (however cheap it may be).

changelog: mention the cache improvements

obshashrangecache: be more paranoid in the errors we catch It seems like there error were already covered. Better safe than sorry.

stablerangecache: be more paranoid in the errors we catch It seems like there error were already covered. Better safe than sorry.

stablesortcache: update the variable tracking on-disk state after write Since we updated the on disk content, we should update that value. In practice the object will likely be discarded after the write, but there is nothing wrong in being more correct.

stablesortcache: ignore permission and OS errors when writing This cache is related to the obshashrange one and we update it lazily by default. This can be an issue when pulling locally from a read only repository that was not configured for a more aggressive cache warming. The raised permission error was uncaught and could crash the whole process. Errors during cache update should not block Mercurial operations.

firstmergecache: update the variable tracking on-disk state after write Since we updated the on disk content, we should update that value. In practice the object will likely be discarded after the write, but there is nothing wrong in being more correct.

firstmergecache: ignore permission and OS errors when writing This cache is related to the obshashrange one and we update it lazily by default. This can be an issue when pulling locally from a read only repository that was not configured for a more aggressive cache warming. The raised permission error was uncaught and could crash the whole process. Errors during cache update should not block Mercurial operations.

depthcache: update the variable tracking on disk state after write Since we updated the on disk content, we should update that value. In practice the object will likely be discarded after the write, but there is nothing wrong in being more correct.

depthcache: ignore permission and OS errors when writing This cache is related to the obshashrange one and we update it lazily by default. This can be an issue when pulling locally from a read only repository that was not configured for a more aggressive cache warming. The raised permission error was uncaught and could crash the whole process. Errors during Cache update should not block Mercurial operations.

obscache: update the variable tracking on disk state after write Since we updated the on disk content, we should update that value. In practice the object will likely be discarded after the write, but there is nothing wrong in being more correct.

obscache: ignore permission and OS errors when writing In practice we always update this cache along side a new transaction, with lock taken so permission issues should not happens. However, staying on the safe side is better. Errors during Cache update should not block Mercurial operations.

obshashrange: force reset if many changes If there is many new markers (or the markers affect many changesets) resetting affected changeset can get slow. A common case for that is then changeset and markers are added in different transaction, (eg: when using clone bundle). When we detect such case, we reset the obshashrange cache, rewarming it should be faster. Here many is arbitrarily set to 10 000. The number might get adjusted.

topic: refactor revset.py slightly Checking both kind == 'literal' and topic.startswith('literal:') seems to be redundant, because of how stringutil.stringmatcher() works.

test: update output to match new `hg verify` reports CORE-TEST-OUTPUT-UPDATE: f1186c292d03

test: update output to match new "pull" phase report CORE-TEST-OUTPUT-UPDATE: 89630d0b3e23

test: adapt to change in revert messages order CORE-TEST-OUTPUT-UPDATE: cb70501d8b71

rewind: fix help text (mostly grammar, but also s/precursor/predecessor)

evolve: fix use of "'%d' % ctx" ctx has not been convertible to int since Mercurial commit 38f480502043 (context: remove basectx.__int__ (API), 2018-02-24). I decided to use "%s" instead to match other similar messages in evolvecmd.py. I also added a space to match the other messages.

stablerange: only issue the message once There is a flag to prevent issuing the long load message multiple time. However, it was never set. This is now fixed

changelog: fix version number

branching: merge back with stable

packaing: mark as development version This help avoid confusion when installing in progress work.

Added tag 8.2.0 for changeset 8d8f08245f97

branching: merge back with stable

packaging: prepare new release

test-compat: merge mercurial-4.4 into mercurial-4.3

test-compat: merge mercurial-4.5 into mercurial-4.4

test-compat: merge mercurial-4.6 into mercurial-4.5

test-compat: merge stable into mercurial-4.6

topic: rework topic templatekw declaration to be 4.5 compatible again Mercurial prior to 4.5 does not have a requires keyword, so we need a compatibility layer.

test-compat: merge mercurial-4.4 into mercurial-4.3

test-compat: merge mercurial-4.5 into mercurial-4.4

test-compat: merge mercurial-4.6 into mercurial-4.5

test-compat: merge stable into mercurial-4.6

branching: merge the two stable heads

test-output: backout test output update in 8fcee1e65e29

test-output: backout test output update in 503ae2689df8

topic: update the changelog with the 's#' alias change

topic: update other occurrence of 't0' is 's0' in the code

topic: mention t0 in topic documentation

stack: display 's#' instead of 't#' and 'b#' If we want people to use it, we should display it.

stack: clarify s# error message in case of branch A branch might have a lots of changeset, with all of them public.

alias: allow reference through 's#' We keep the 't#' option, but we hope to be able to deprecate it at some point. We move to 's#' because it refers to `stack` a more generic concept. than topic. In addition, this allows to phase out 'b#' that collide with normal hex-node.

topic-revset: get the list of revset through the official localrepo API This is simpler and faster. In addition we tighter the logic to be used in case of empty topic. We do not need to fall back to revision search.