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Differential D9134

help: extract logic for listing commands and topics.
ClosedPublic

Authored by ludovicchabant on Sep 30 2020, 5:35 PM.

Details

Reviewers
Alphare
pulkit
Group Reviewers
hg-reviewers
Commits
rHG65cb924a1430: help: extract logic for listing commands and topics

Diff Detail

Repository
rHG Mercurial
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

ludovicchabant created this revision.Sep 30 2020, 5:35 PM
Alphare accepted this revision.Oct 5 2020, 5:00 AM
Alphare added a subscriber: Alphare.

Looks good. I'm assuming you'd be using this in an extension?

pulkit accepted this revision.Oct 6 2020, 4:30 AM
This revision is now accepted and ready to land.Oct 6 2020, 4:30 AM

Revision Contents
Changeset List

PathPackages
Mmercurial/help.py (92 lines)

Diff 23052

mercurial/help.py

def sub(m): def sub(m):
lines = [m.group(1) + s for s in repl.splitlines()] lines = [m.group(1) + s for s in repl.splitlines()]
return b'\n'.join(lines) return b'\n'.join(lines)
return re.sub(br'( *)%s' % re.escape(marker), sub, doc) return re.sub(br'( *)%s' % re.escape(marker), sub, doc)
def _getcategorizedhelpcmds(ui, cmdtable, name, select=None):
# Category -> list of commands
cats = {}
# Command -> short description
h = {}
# Command -> string showing synonyms
syns = {}
for c, e in pycompat.iteritems(cmdtable):
fs = cmdutil.parsealiases(c)
f = fs[0]
syns[f] = fs
func = e[0]
if select and not select(f):
continue
doc = pycompat.getdoc(func)
if filtercmd(ui, f, func, name, doc):
continue
doc = gettext(doc)
if not doc:
doc = _(b"(no help text available)")
h[f] = doc.splitlines()[0].rstrip()
cat = getattr(func, 'helpcategory', None) or (
registrar.command.CATEGORY_NONE
)
cats.setdefault(cat, []).append(f)
return cats, h, syns
def _getcategorizedhelptopics(ui, topictable):
# Group commands by category.
topiccats = {}
syns = {}
for topic in topictable:
names, header, doc = topic[0:3]
if len(topic) > 3 and topic[3]:
category = topic[3]
else:
category = TOPIC_CATEGORY_NONE
topicname = names[0]
syns[topicname] = list(names)
if not filtertopic(ui, topicname):
topiccats.setdefault(category, []).append((topicname, header))
return topiccats, syns
addtopichook(b'config', inserttweakrc) addtopichook(b'config', inserttweakrc)
def help_( def help_(
ui, ui,
commands, commands,
name, name,
unknowncmd=False, unknowncmd=False,
b'\n(some details hidden, use --verbose ' b'\n(some details hidden, use --verbose '
b'to show complete help)' b'to show complete help)'
) )
) )
return rst return rst
def helplist(select=None, **opts): def helplist(select=None, **opts):
# Category -> list of commands cats, h, syns = _getcategorizedhelpcmds(
cats = {} ui, commands.table, name, select
# Command -> short description
h = {}
# Command -> string showing synonyms
syns = {}
for c, e in pycompat.iteritems(commands.table):
fs = cmdutil.parsealiases(c)
f = fs[0]
syns[f] = b', '.join(fs)
func = e[0]
if select and not select(f):
continue
doc = pycompat.getdoc(func)
if filtercmd(ui, f, func, name, doc):
continue
doc = gettext(doc)
if not doc:
doc = _(b"(no help text available)")
h[f] = doc.splitlines()[0].rstrip()
cat = getattr(func, 'helpcategory', None) or (
registrar.command.CATEGORY_NONE
) )
cats.setdefault(cat, []).append(f)
rst = [] rst = []
if not h: if not h:
if not ui.quiet: if not ui.quiet:
rst.append(_(b'no commands defined\n')) rst.append(_(b'no commands defined\n'))
return rst return rst
# Output top header. # Output top header.
if not ui.quiet: if not ui.quiet:
if name == b"shortlist": if name == b"shortlist":
rst.append(_(b'basic commands:\n\n')) rst.append(_(b'basic commands:\n\n'))
elif name == b"debug": elif name == b"debug":
rst.append(_(b'debug commands (internal and unsupported):\n\n')) rst.append(_(b'debug commands (internal and unsupported):\n\n'))
else: else:
rst.append(_(b'list of commands:\n')) rst.append(_(b'list of commands:\n'))
def appendcmds(cmds): def appendcmds(cmds):
cmds = sorted(cmds) cmds = sorted(cmds)
for c in cmds: for c in cmds:
if ui.verbose: if ui.verbose:
rst.append(b" :%s: %s\n" % (syns[c], h[c])) rst.append(b" :%s: %s\n" % (b', '.join(syns[c]), h[c]))
else: else:
rst.append(b' :%s: %s\n' % (c, h[c])) rst.append(b' :%s: %s\n' % (c, h[c]))
if name in (b'shortlist', b'debug'): if name in (b'shortlist', b'debug'):
# List without categories. # List without categories.
appendcmds(h) appendcmds(h)
else: else:
# Check that all categories have an order. # Check that all categories have an order.
extensions.enabled(), extensions.enabled(),
showdeprecated=ui.verbose, showdeprecated=ui.verbose,
) )
if exts: if exts:
rst.append(b'\n') rst.append(b'\n')
rst.extend(exts) rst.extend(exts)
rst.append(_(b"\nadditional help topics:\n")) rst.append(_(b"\nadditional help topics:\n"))
# Group commands by category. topiccats, topicsyns = _getcategorizedhelptopics(ui, helptable)
topiccats = {}
for topic in helptable:
names, header, doc = topic[0:3]
if len(topic) > 3 and topic[3]:
category = topic[3]
else:
category = TOPIC_CATEGORY_NONE
topicname = names[0]
if not filtertopic(ui, topicname):
topiccats.setdefault(category, []).append(
(topicname, header)
)
# Check that all categories have an order. # Check that all categories have an order.
missing_order = set(topiccats.keys()) - set(TOPIC_CATEGORY_ORDER) missing_order = set(topiccats.keys()) - set(TOPIC_CATEGORY_ORDER)
if missing_order: if missing_order:
ui.develwarn( ui.develwarn(
b'help categories missing from TOPIC_CATEGORY_ORDER: %s' b'help categories missing from TOPIC_CATEGORY_ORDER: %s'
% missing_order % missing_order
) )