localrepo: make supported features manageable in each repositories individually Before this patch, all localrepositories support same features, because supported features are managed by the class variable "supported" of "localrepository". For example, "largefiles" feature provided by largefiles extension is recognized as supported, by adding the feature name to "supported" of "localrepository". So, commands handling multiple repositories at a time like below misunderstand that such features are supported also in repositories not enabling corresponded extensions: - clone/pull from or push to localhost - recursive execution in subrepo tree "reposetup()" can't be used to fix this problem, because it is invoked after checking whether supported features satisfy ones required in the target repository. So, this patch adds the set object named as "featuresetupfuncs" to "localrepository" to manage hook functions to setup supported features of each repositories. If any functions are added to "featuresetupfuncs", they are invoked, and information about supported features is managed in each repositories individually. This patch also adds checking below: - pull from localhost: whether features supported in the local(= dst) repository satisfies ones required in the remote(= src) - push to localhost: whether features supported in the remote(= dst) repository satisfies ones required in the local(= src) Managing supported features by the class variable means that there is no difference of supported features between each instances of "localrepository" in the same Python process, so such checking is not needed before this patch. Even with this patch, if intermediate bundlefile is used as pulling source, pulling indirectly from the remote repository, which requires features more than ones supported in the local, can't be prevented, because bundlefile has no information about "required features" in it.

extensions: list up only enabled extensions, if "ui" is specified Before this patch, "extensions.extensions()" always lists up all loaded extensions. So, commands handling multiple repositories at a time like below enable extensions unexpectedly. - clone from or push to localhost: extensions enabled only in the source are enabled also in the destination - pull from localhost: extensions enabled only in the destination are enabled also in the source - recursive execution in subrepo tree: extensions enabled only in the parent or some of siblings in the tree are enabled also in others In addition to it, extensions disabled locally may be enabled unexpectedly. This patch checks whether each of extensions should be listed up or not, if "ui" is specified to "extensions.extensions()", and invokes "reposetup()" of each extensions only for repositories enabling it.

merge with stable

largefiles: remove bailifchanged check from overridepull (BC) This brings pull --rebase with largefiles in line with pull --rebase without.

rebase: remove bailifchanged check from pullrebase (BC) This saves us a relatively superfluous status check for pull --rebase (if rebase runs, it'll check for a clean working directory anyway), and brings hg pull --rebase closer to hg pull && hg rebase. This is a behavior change because pull --rebase with a dirty working directory will now abort after performing the pull rather than before.

debugshell: check ui.debugger for which debugger to use

debugshell: add function to embed ipython

debugshell: abstract out pdb code.interact

templater: support using templates with non-standard names from map file Allow to add arbitrarily-named entries to a template map file and then reference them, to make it possible to deduplicate and simplify templates code.

help: use full name of extensions to look up them for keyword search Before this patch, "hg help -k KEYWORD" fails, if there is the extension of which name includes ".", because "extensions.load()" invoked from "help.topicmatch()" fails to look such extension up, even though it is already loaded in. "help.topicmatch()" invokes "extensions.load()" with the name gotten from "extensions.enabled()". The former expects full name of extension (= key in '[extensions]' section), but the latter returns names shortened by "split('.')[-1]". This difference causes failure of looking extension up. This patch adds "shortname" argument to "extensions.enabled()" to make it return shortened names only if it is True. "help.topicmatch()" turns it off to get full name of extensions. Then, this patch shortens full name of extensions by "split('.')[-1]" for showing them in the list of extensions. Shortening is also applied on names gotten from "extensions.disabled()" but harmless, because it returns only extensions directly under "hgext" and their names should not include ".".