test-revset: add a few more tests of descendants() I'll add depth support to descendants().

dagop: unnest inner generator of revdescendants() This just moves iterate() to module-level function.

smartset: fix default value of abstractsmartset.sort() It's unused, but it shouldn't lie.

keyword: wrap functions only once at loading keyword extension Before this patch, some functions are wrapped in reposetup(), but this causes redundant nested wrapping, if two ore more repositories enable keyword extension (e.g. hgweb serves multiple repositories). Now, there is no need to define these wrapper functions in reposetup(), because previous patches made them not directly refer to kwtemplater instanciated in reposetup(). This patch factors these wrapper functions out from reposetup(), and uses them to wrap functions only at once at loading keyword extension.

keyword: use _keywordkwt of repository instead of kwtools['templater'] Now, kwtemplater instance can be obtained via _keywordkwt property of repository.

keyword: obtain kwtemplater instance via repository at runtime Wrapper functions of keyword extension are defined in reposetup(), because they refer to kwtemplater instantiated in reposetup(). This patch makes them obtain kwtemplater instance via repository at runtime. For reviewability, this patch focuses on wrapper functions, which handle generator. This is a part of preparations for defining them statically.

keyword: obtain kwtemplater instance via repository at runtime Wrapper functions of keyword extension are defined in reposetup(), because they refer to kwtemplater instantiated in reposetup(). This patch makes them obtain kwtemplater instance via repository at runtime. This is a part of preparations for defining them statically.

keyword: make wrapped repository and kwtemplater refer to each other Wrapper functions of keyword extension are defined in reposetup(), because they refer to kwtemplater instantiated in reposetup(). But these functions can be defined statically, if kwtemplater can be obtained via repository at runtime. This is a part of preparations for defining them statically. To avoid cyclic reference, this patch makes kwtemplater use weakref to refer related repository instance.

keyword: add test for keyword expansion at serving multiple repositories This is safety for subsequent (and future) patches, which change function wrapping.

keyword: make comparison webcommand suppress keyword expansion Before this patch, diff in "comparison" webcommand doesn't suppress keyword expansion as same as diff output of other webcommands.

keyword: restore kwtemplater.match at the end of wrapped webcommands Before this patch, kwweb_skip doesn't restore kwtemplater.match after wrapped webcommands. This suppresses keyword expansion at wrapped webcommands. Typical usecase of this issue is "file" webcommand after annotate, changeset, filediff or so on. To ensure kwtemplater.match=util.never while original webcommand running, this patch makes kwweb_skip yield values returned by it, because it returns generator object.

keyword: restore kwtemplater.restrict at the end of wrapped patch.diff Before this patch, kwdiff doesn't restore kwtemplater.restrict after invocation of wrapped patch.diff(). This suppresses keyword expansion at subsequent filelog.read(). Typical usecase of this issue is "hg cat" after "hg diff" with command server. In this case, kwtemplater.restrict=True is kept in command server process even after "hg diff". To ensure kwtemplater.restrict=True while original patch.diff() running, this patch makes kwdiff() yield values returned by it, because it returns generator object. Strictly speaking, if filelog.read() is invoked before completely evaluating the result of previous patch.diff(), keyword expansion is still suppressed, because kwtemplater.restrict isn't restored yet. But this fixing should be reasonable enough, because patch.diff() is consumed immediately, AFAIK.

debugrevlog: align chain length, reach, and compression ratio I think this is what the max(...) exists for.

configitems: register 'ui.interactive' That item default value is a bit special (None) so this adds a second proof that everything is still working fine.

config: use '_config' within 'configbytes' This will prevent bugs from using None as the sentinel value (eg: 'ui.interactive')

config: use '_config' within 'configbool' This will prevent bugs from using None as the sentinel value (eg: 'ui.interactive')

config: extract the core config logic into a private method This will make it easier for the other 'configxxx' function to detect unset value.

debugrevlog: also display the largest delta chain span Mercurial read all data between the base of the chain and the last delta when restoring content (including unrelated delta). To monitor this, we add data about the size of the "delta chain span" to debugrevlog.

rebase: clean up rebasestate from active transaction Previously, rebase assumes the following pattern: rebase: with transaction as tr: # top-level ... tr.__close__ writes rebasestate unlink('rebasestate') However it's possible that "rebase" was called inside a transaction: with transaction as tr1: rebase: with transaction as tr2: # not top-level ... tr2.__close__ does not write rebasestate unlink('rebasestate') tr1.__close__ writes rebasestate That leaves a rebasestate on disk incorrectly. This patch adds "removefilegenerator" to notify transaction code that the state file is no longer needed therefore fixes the issue.

test-rebase: add a test showing rebasestate left behind The test demonstrates that .hg/rebasestate is left behind if "rebase" was called inside an existing transaction.

identify: rename 'changed' keyword -> 'dirty' I meant to do this before sending the initial templater support, but forgot. I'm quite surprised that 'dirty' doesn't occur in more user facing contexts, but there are a few, like the help for blackbox. It also more obviously mirrors the '(clean)' state printed by the summary command. I also didn't like that it was just one letter off from {changes} in the {latesttags} sub-keywords, which has a totally different meaning.

dispatch: remove unused _loaded Now, there is no user for dispatch._loaded.

extensions: register functions always at loading extension (issue5601) Before this patch, functions defined in extensions are registered via extra loaders only in _dispatch(). Therefore, loading extensions in other code paths like below omits registration of functions. - WSGI service - operation across repositories (e.g. subrepo) - test-duplicateoptions.py, using extensions.loadall() directly To register functions always at loading new extension, this patch moves implementation for extra loading from dispatch._dispatch() to extensions.loadall(). AFAIK, only commands module causes cyclic dependency between extensions module, but this patch imports all related modules just before extra loading in loadall(), in order to centralize them. This patch makes extensions.py depend on many other modules, even though extensions.py itself doesn't. It should be avoided if possible, but I don't have any better idea. Some other places like below aren't reasonable for extra loading, IMHO. - specific function in newly added module: existing callers of extensions.loadall() should invoke it, too - hg.repository() or so: no-repo commands aren't covered by this. BTW, this patch removes _loaded.add(name) on relocation, because dispatch._loaded is used only for extraloaders (for similar reason, "exts" variable is removed, too).

identify: add template support This is based on a patch proposed last year by Mathias De Maré[1], with a few changes. - Tags and bookmarks are now formatted lists, for more flexible queries. - The templater is populated whether or not [-nibtB] is specified. (Plain output is unchanged.) This seems more consistent with other templated commands. - The 'id' property is a string, instead of a list. - The parents of 'wdir()' have their own list of attributes. I left 'id' as a string because it seems very useful for generating version info. It's also a bit strange because the value and meaning changes depending on whether or not --debug is passed (short vs full hash), whether the revision is a merge or not (one hash or two, separated by a '+'), the working directory or not (node vs p1node), and local or not (remote defaults to tip, and never has '+'). The equivalent string built with {rev} seems much less useful, and I couldn't think of a reasonable name, so I left it out. The discussion seemed to be pointing towards having a list of nodes, with more than one entry for a merge. It seems simpler to give the nodes a name, and use {node} for the actual commit probed, especially now that there is a virtual node for 'wdir()'. Yuya mentioned using fm.nested() in that thread, so I did for the parent nodes. I'm not sure if the plan is to fill in all of the context attributes in these items, or if these nested items should simply be made {p1node} and {p1rev}. I used ':' as the tag separator for consistency with {tags} in the log templater. Likewise, bookmarks are separated by a space for consistency with the corresponding log template. [1] https://www.mercurial-scm.org/pipermail/mercurial-devel/2016-August/087039.html