mercurial/templates/map-cmdline.default

profiling: move profiling code from dispatch.py (API)

Currently, profiling code lives in dispatch.py, which is a low-level
module centered around command dispatch. Furthermore, dispatch.py
imports a lot of other modules, meaning that importing dispatch.py
to get at profiling functionality would often result in a module import
cycle.

Profiling is a generic activity. It shouldn't be limited to command
dispatch. This patch moves profiling code from dispatch.py to the
new profiling.py. The low-level "run a profiler against a function"
functions have been moved verbatim. The code for determining how to
invoke the profiler has been extracted to its own function.

I decided to create a new module rather than stick this code
elsewhere (such as util.py) because util.py is already quite large.
And, I foresee this file growing larger once Facebook's profiling
enhancements get added to it.

# Base templates. Due to name clashes with existing keywords, we have
# to replace some keywords with 'lkeyword', for 'labelled keyword'
changeset = '{cset}{branches}{bookmarks}{tags}{parents}{user}{ldate}{summary}\n'
changeset_quiet = '{lnode}'
changeset_verbose = '{cset}{branches}{bookmarks}{tags}{parents}{user}{ldate}{lfiles}{lfile_copies_switch}{description}\n'
changeset_debug = '{fullcset}{branches}{bookmarks}{tags}{lphase}{parents}{manifest}{user}{ldate}{lfile_mods}{lfile_adds}{lfile_dels}{lfile_copies_switch}{extras}{description}\n'

# File templates
lfiles = '{if(files,
               label("ui.note log.files",
                     "files:       {files}\n"))}'

lfile_mods = '{if(file_mods,
                  label("ui.debug log.files",
                        "files:       {file_mods}\n"))}'

lfile_adds = '{if(file_adds,
                  label("ui.debug log.files",
                        "files+:      {file_adds}\n"))}'

lfile_dels = '{if(file_dels,
                  label("ui.debug log.files",
                        "files-:      {file_dels}\n"))}'

lfile_copies_switch = '{if(file_copies_switch,
                           label("ui.note log.copies",
                                 "copies:     {file_copies_switch
                                               % ' {name} ({source})'}\n"))}'

# General templates
cset = '{label("log.changeset changeset.{phase}",
               "changeset:   {rev}:{node|short}")}\n'

lphase = '{label("log.phase",
                 "phase:       {phase}")}\n'

fullcset = '{label("log.changeset changeset.{phase}",
                   "changeset:   {rev}:{node}")}\n'

parent = '{label("log.parent changeset.{phase}",
                  "parent:      {rev}:{node|formatnode}")}\n'

lnode = '{label("log.node",
                "{rev}:{node|short}")}\n'

manifest = '{label("ui.debug log.manifest",
                   "manifest:    {rev}:{node}")}\n'

branch = '{label("log.branch",
                 "branch:      {branch}")}\n'

tag = '{label("log.tag",
              "tag:         {tag}")}\n'

bookmark = '{label("log.bookmark",
                   "bookmark:    {bookmark}")}\n'

user = '{label("log.user",
               "user:        {author}")}\n'

summary = '{if(desc|strip, "{label('log.summary',
                                   'summary:     {desc|firstline}')}\n")}'

ldate = '{label("log.date",
                "date:        {date|date}")}\n'

extra = '{label("ui.debug log.extra",
                "extra:       {key}={value|stringescape}")}\n'

description = '{if(desc|strip, "{label('ui.note log.description',
                                       'description:')}
                                {label('ui.note log.description',
                                       '{desc|strip}')}\n\n")}'

status = '{status} {path}\n{if(copy, "  {copy}\n")}'