view mercurial/templates/map-cmdline.show @ 49580:08fe5c4d4471 stable

tags-fnode-cache: skip building a changectx in getfnode

Building a changectx object is costly, doing it just to retrieve the revision
number is suboptimal. Directly fetching the revision number from the changelog
provide a sizeable speedup to `hg debugupdatecache`.

### data-env-vars.name           = mercurial-2018-08-01-zstd-sparse-revlog
  # benchmark.name               = debug-update-cache
  # benchmark.variants.pre-state = warm
before: 0.213229 seconds
after:  0.165577 seconds  (-22.35%)
  # data-env-vars.name           = mercurial-filtered-2019-11-22-zstd-sparse-revlog
before: 1.200383 seconds
after:  1.071618 seconds  (-10.73%)
  # data-env-vars.name           = mozilla-central-2018-08-01-zstd-sparse-revlog
before: 1.465735 seconds
after:  0.923128 seconds  (-37.02%)
  # data-env-vars.name           = mozilla-try-2019-02-18-zstd-sparse-revlog
before: 6.511771 seconds
after:  4.507316 seconds  (-30.78%)
  # data-env-vars.name           = netbeans-2018-08-01-zstd-sparse-revlog
before: 1.023007 seconds
after:  0.645026 seconds  (-36.95%)
  # data-env-vars.name           = pypy-2018-08-01-zstd-sparse-revlog
before: 0.381141 seconds
after:  0.268654 seconds  (-29.51%)

# TODO there are a few deficiencies in this file:
# * The "namespace" of the labels needs to be worked out. We currently
#   piggyback on existing values so color works.

%include map-cmdline.default

[templates]
showbookmarks = '{if(active, "*", " ")} {pad(bookmark, longestbookmarklen + 4)}{shortest(node, nodelen)}\n'

showwork = '{cset_shortnode}{namespaces % cset_namespace} {cset_shortdesc}'
showstack = '{showwork}'

cset_shortnode = '{labelcset(shortest(node, nodelen))}'

# Treat branch and tags specially so we don't display "default" or "tip"
cset_namespace = '{ifeq(namespace, "branches", names_branches, ifeq(namespace, "tags", names_tags, names_others))}'
names_branches = '{ifeq(branch, "default", "", " ({label('log.{colorname}', branch)})")}'
names_tags = '{if(filter_tags(names),
                  " ({label('log.{colorname}', join(filter_tags(names), ' '))})")}'
names_others = '{if(names, " ({label('log.{colorname}', join(names, ' '))})")}'

cset_shortdesc = '{label("log.description", desc|firstline)}'

[templatealias]
filter_tags(names) = filter(names, ifeq(name, 'tip', '', name))