bookmarks: port to generic templater

bookmarks: split ui.write() so that it can be easily ported to formatter api Test output changes because color labels are applied separately.

bookmarks: iterate bookmarks list even if it is known to be empty This clarifies that "no bookmarks set" is displayed in addition to the list of bookmarks. In JSON output, for example, [] should be written if empty, and "no bookmarks set" message should be skipped.

repoview: remove hiddencache verification We have been running hiddencache verification since 3.1.1 and so far not received a bug report concerning it. Therefore we remove the verification code and make the hiddencache authoritive. That way we get the intended speedup.

color: reorganise and sectionify the help text The color docstring was getting long. This splits it up into bite-sized sections and rearranges the order of the paragraphs a little to match these sections.

color: update description of the extension The color extension long ago ceased to work only for the status and qseries commands.

help: show all nested subsections of a section with `hg help foo.section` Used to be that `hg help hgrc.paths` would show "paths" ------- Assigns symbolic names to repositories. The left side is the symbolic name, and the right gives the directory or URL that is the location of the repository. Default paths can be declared by setting the following entries. and stop there. Obviously the result seems better as shown in the attached test.

help: fix output of sections in `hg help foo.somesection` There was a bug in c3c3dd31fe1c. The block that added definitions to getsections should have been an elif, not an if. Otherwise section titles get added twice, since the else clause would always get executed for section titles.

log: show phase in hg log -v with the phase template It seems weird that `hg log -v -T phases` would be *less* verbose than `hg log -T phases`. This cset corrects that oversight.

log: add labels to the phase template This copies the labelled default template and just adds an extra {phase} keyword as necessary.

log: rewrite default template to use labels (issue2866) This is a complete rewrite of the default template to use labels. This seems ultimately useless to me in most cases. The biggest benefit of this patch to me seems to be a fairly complicated example of the templating engine. It was a lot of hard work to figure out the precise acceptable syntax, since it's almost undocumented. Hat tip to Steve Losh's smartlog template, which helped me figure out a lot of the syntax. Hopefully later I can use the present default log template as an example for documenting the templating engine. A test is attached. My goal was to match the --color=debug output, which may differ slightly in newlines from the actual ANSI escape codes output. I consider this an acceptable invisible deviation. There seems to be a considerable slowdown with this rewrite. Before: $ time hg log -T default -r .~100::. > /dev/null real 0m0.882s user 0m0.812s sys 0m0.064s $ time hg log -T default -r .~100::. > /dev/null real 0m0.872s user 0m0.796s sys 0m0.068s $ time hg log -T default -r .~100::. > /dev/null real 0m0.917s user 0m0.836s sys 0m0.076s After: $ time hg log -T default -r .~100::. > /dev/null real 0m1.480s user 0m1.392s sys 0m0.072s $ time hg log -T default -r .~100::. > /dev/null real 0m1.500s user 0m1.400s sys 0m0.088s $ time hg log -T default -r .~100::. > /dev/null real 0m1.462s user 0m1.364s sys 0m0.092s Following the maxim, "make it work, profile, make it faster, in that order", I deem this slowdown acceptable for now. I suspect but have not confirmed that a big slowdown comes from calling keywords twice in the file templates, once to test the existence of output and again to actually list the output. If so, a simple speedup might be to improve the templating engine to cache keywords when called more than once on the same revision. TODO: I found a bug while working on this. The following stack traces: hg log -r . -T '{ifcontains(phase, "secret public", "lol", "omg")}\n'

log: do not hide the public phase in debug mode (BC) When 51fc43253a52 introduced phases to the `hg log --debug` output, it also disabled outputting public phase. At the same time, it always shows phases in the default template, `hg log --debug -T default`. Those two should produce the same output, but they don't. I think it makes a lot more sense to always show all phases. There's already loss of backwards compatibility in this case when using a newer hg on an old hg repo, since draft commits will show up in the output of `hg log --debug`. Finally, I just don't think that any sort of information should be hidden with --debug. This flag should be about showing as much information as possible.

templater: set the correct phase for parents Akin to f6371cc62d2a which did this for `hg log`, the following sets the correct phase for the {phase} keyword when the context is a parent of the current cset. This allows templates such as the following to be defined, parent = '{label("log.parent changeset.{phase}", "parent: {rev}:{node|formatnode}")}\n' which when called on a parent (e.g. with the `parents` template keyword), will produce the correct phase.

color: omit debug label output on empty strings This is most noticeable when using custom templates. Before this patch, a template like {label("foo.bar", baz)} would emit [foo.bar|] whenever baz was empty. This cset simply omits all output when baz is empty.

tests: make hghave list features alphabetically