|
|
# help.py - help data for mercurial
|
|
|
#
|
|
|
# Copyright 2006 Matt Mackall <mpm@selenic.com>
|
|
|
#
|
|
|
# This software may be used and distributed according to the terms of the
|
|
|
# GNU General Public License version 2 or any later version.
|
|
|
|
|
|
from i18n import gettext, _
|
|
|
import itertools, os, textwrap
|
|
|
import error
|
|
|
import extensions, revset, fileset, templatekw, templatefilters, filemerge
|
|
|
import templater
|
|
|
import encoding, util, minirst
|
|
|
import cmdutil
|
|
|
import hgweb.webcommands as webcommands
|
|
|
|
|
|
def listexts(header, exts, indent=1, showdeprecated=False):
|
|
|
'''return a text listing of the given extensions'''
|
|
|
rst = []
|
|
|
if exts:
|
|
|
rst.append('\n%s\n\n' % header)
|
|
|
for name, desc in sorted(exts.iteritems()):
|
|
|
if '(DEPRECATED)' in desc and not showdeprecated:
|
|
|
continue
|
|
|
rst.append('%s:%s: %s\n' % (' ' * indent, name, desc))
|
|
|
return rst
|
|
|
|
|
|
def extshelp():
|
|
|
rst = loaddoc('extensions')().splitlines(True)
|
|
|
rst.extend(listexts(
|
|
|
_('enabled extensions:'), extensions.enabled(), showdeprecated=True))
|
|
|
rst.extend(listexts(_('disabled extensions:'), extensions.disabled()))
|
|
|
doc = ''.join(rst)
|
|
|
return doc
|
|
|
|
|
|
def optrst(header, options, verbose):
|
|
|
data = []
|
|
|
multioccur = False
|
|
|
for option in options:
|
|
|
if len(option) == 5:
|
|
|
shortopt, longopt, default, desc, optlabel = option
|
|
|
else:
|
|
|
shortopt, longopt, default, desc = option
|
|
|
optlabel = _("VALUE") # default label
|
|
|
|
|
|
if not verbose and ("DEPRECATED" in desc or _("DEPRECATED") in desc or
|
|
|
"EXPERIMENTAL" in desc or
|
|
|
_("EXPERIMENTAL") in desc):
|
|
|
continue
|
|
|
|
|
|
so = ''
|
|
|
if shortopt:
|
|
|
so = '-' + shortopt
|
|
|
lo = '--' + longopt
|
|
|
if default:
|
|
|
desc += _(" (default: %s)") % default
|
|
|
|
|
|
if isinstance(default, list):
|
|
|
lo += " %s [+]" % optlabel
|
|
|
multioccur = True
|
|
|
elif (default is not None) and not isinstance(default, bool):
|
|
|
lo += " %s" % optlabel
|
|
|
|
|
|
data.append((so, lo, desc))
|
|
|
|
|
|
if multioccur:
|
|
|
header += (_(" ([+] can be repeated)"))
|
|
|
|
|
|
rst = ['\n%s:\n\n' % header]
|
|
|
rst.extend(minirst.maketable(data, 1))
|
|
|
|
|
|
return ''.join(rst)
|
|
|
|
|
|
def indicateomitted(rst, omitted, notomitted=None):
|
|
|
rst.append('\n\n.. container:: omitted\n\n %s\n\n' % omitted)
|
|
|
if notomitted:
|
|
|
rst.append('\n\n.. container:: notomitted\n\n %s\n\n' % notomitted)
|
|
|
|
|
|
def topicmatch(kw):
|
|
|
"""Return help topics matching kw.
|
|
|
|
|
|
Returns {'section': [(name, summary), ...], ...} where section is
|
|
|
one of topics, commands, extensions, or extensioncommands.
|
|
|
"""
|
|
|
kw = encoding.lower(kw)
|
|
|
def lowercontains(container):
|
|
|
return kw in encoding.lower(container) # translated in helptable
|
|
|
results = {'topics': [],
|
|
|
'commands': [],
|
|
|
'extensions': [],
|
|
|
'extensioncommands': [],
|
|
|
}
|
|
|
for names, header, doc in helptable:
|
|
|
# Old extensions may use a str as doc.
|
|
|
if (sum(map(lowercontains, names))
|
|
|
or lowercontains(header)
|
|
|
or (callable(doc) and lowercontains(doc()))):
|
|
|
results['topics'].append((names[0], header))
|
|
|
import commands # avoid cycle
|
|
|
for cmd, entry in commands.table.iteritems():
|
|
|
if len(entry) == 3:
|
|
|
summary = entry[2]
|
|
|
else:
|
|
|
summary = ''
|
|
|
# translate docs *before* searching there
|
|
|
docs = _(getattr(entry[0], '__doc__', None)) or ''
|
|
|
if kw in cmd or lowercontains(summary) or lowercontains(docs):
|
|
|
doclines = docs.splitlines()
|
|
|
if doclines:
|
|
|
summary = doclines[0]
|
|
|
cmdname = cmd.split('|')[0].lstrip('^')
|
|
|
results['commands'].append((cmdname, summary))
|
|
|
for name, docs in itertools.chain(
|
|
|
extensions.enabled(False).iteritems(),
|
|
|
extensions.disabled().iteritems()):
|
|
|
# extensions.load ignores the UI argument
|
|
|
mod = extensions.load(None, name, '')
|
|
|
name = name.split('.')[-1]
|
|
|
if lowercontains(name) or lowercontains(docs):
|
|
|
# extension docs are already translated
|
|
|
results['extensions'].append((name, docs.splitlines()[0]))
|
|
|
for cmd, entry in getattr(mod, 'cmdtable', {}).iteritems():
|
|
|
if kw in cmd or (len(entry) > 2 and lowercontains(entry[2])):
|
|
|
cmdname = cmd.split('|')[0].lstrip('^')
|
|
|
if entry[0].__doc__:
|
|
|
cmddoc = gettext(entry[0].__doc__).splitlines()[0]
|
|
|
else:
|
|
|
cmddoc = _('(no help text available)')
|
|
|
results['extensioncommands'].append((cmdname, cmddoc))
|
|
|
return results
|
|
|
|
|
|
def loaddoc(topic):
|
|
|
"""Return a delayed loader for help/topic.txt."""
|
|
|
|
|
|
def loader():
|
|
|
docdir = os.path.join(util.datapath, 'help')
|
|
|
path = os.path.join(docdir, topic + ".txt")
|
|
|
doc = gettext(util.readfile(path))
|
|
|
for rewriter in helphooks.get(topic, []):
|
|
|
doc = rewriter(topic, doc)
|
|
|
return doc
|
|
|
|
|
|
return loader
|
|
|
|
|
|
helptable = sorted([
|
|
|
(["config", "hgrc"], _("Configuration Files"), loaddoc('config')),
|
|
|
(["dates"], _("Date Formats"), loaddoc('dates')),
|
|
|
(["patterns"], _("File Name Patterns"), loaddoc('patterns')),
|
|
|
(['environment', 'env'], _('Environment Variables'),
|
|
|
loaddoc('environment')),
|
|
|
(['revisions', 'revs'], _('Specifying Single Revisions'),
|
|
|
loaddoc('revisions')),
|
|
|
(['multirevs', 'mrevs'], _('Specifying Multiple Revisions'),
|
|
|
loaddoc('multirevs')),
|
|
|
(['revsets', 'revset'], _("Specifying Revision Sets"), loaddoc('revsets')),
|
|
|
(['filesets', 'fileset'], _("Specifying File Sets"), loaddoc('filesets')),
|
|
|
(['diffs'], _('Diff Formats'), loaddoc('diffs')),
|
|
|
(['merge-tools', 'mergetools'], _('Merge Tools'), loaddoc('merge-tools')),
|
|
|
(['templating', 'templates', 'template', 'style'], _('Template Usage'),
|
|
|
loaddoc('templates')),
|
|
|
(['urls'], _('URL Paths'), loaddoc('urls')),
|
|
|
(["extensions"], _("Using Additional Features"), extshelp),
|
|
|
(["subrepos", "subrepo"], _("Subrepositories"), loaddoc('subrepos')),
|
|
|
(["hgweb"], _("Configuring hgweb"), loaddoc('hgweb')),
|
|
|
(["glossary"], _("Glossary"), loaddoc('glossary')),
|
|
|
(["hgignore", "ignore"], _("Syntax for Mercurial Ignore Files"),
|
|
|
loaddoc('hgignore')),
|
|
|
(["phases"], _("Working with Phases"), loaddoc('phases')),
|
|
|
(['scripting'], _('Using Mercurial from scripts and automation'),
|
|
|
loaddoc('scripting')),
|
|
|
])
|
|
|
|
|
|
# Map topics to lists of callable taking the current topic help and
|
|
|
# returning the updated version
|
|
|
helphooks = {}
|
|
|
|
|
|
def addtopichook(topic, rewriter):
|
|
|
helphooks.setdefault(topic, []).append(rewriter)
|
|
|
|
|
|
def makeitemsdoc(topic, doc, marker, items, dedent=False):
|
|
|
"""Extract docstring from the items key to function mapping, build a
|
|
|
single documentation block and use it to overwrite the marker in doc.
|
|
|
"""
|
|
|
entries = []
|
|
|
for name in sorted(items):
|
|
|
text = (items[name].__doc__ or '').rstrip()
|
|
|
if not text:
|
|
|
continue
|
|
|
text = gettext(text)
|
|
|
if dedent:
|
|
|
text = textwrap.dedent(text)
|
|
|
lines = text.splitlines()
|
|
|
doclines = [(lines[0])]
|
|
|
for l in lines[1:]:
|
|
|
# Stop once we find some Python doctest
|
|
|
if l.strip().startswith('>>>'):
|
|
|
break
|
|
|
if dedent:
|
|
|
doclines.append(l.rstrip())
|
|
|
else:
|
|
|
doclines.append(' ' + l.strip())
|
|
|
entries.append('\n'.join(doclines))
|
|
|
entries = '\n\n'.join(entries)
|
|
|
return doc.replace(marker, entries)
|
|
|
|
|
|
def addtopicsymbols(topic, marker, symbols, dedent=False):
|
|
|
def add(topic, doc):
|
|
|
return makeitemsdoc(topic, doc, marker, symbols, dedent=dedent)
|
|
|
addtopichook(topic, add)
|
|
|
|
|
|
addtopicsymbols('filesets', '.. predicatesmarker', fileset.symbols)
|
|
|
addtopicsymbols('merge-tools', '.. internaltoolsmarker',
|
|
|
filemerge.internalsdoc)
|
|
|
addtopicsymbols('revsets', '.. predicatesmarker', revset.symbols)
|
|
|
addtopicsymbols('templates', '.. keywordsmarker', templatekw.dockeywords)
|
|
|
addtopicsymbols('templates', '.. filtersmarker', templatefilters.filters)
|
|
|
addtopicsymbols('templates', '.. functionsmarker', templater.funcs)
|
|
|
addtopicsymbols('hgweb', '.. webcommandsmarker', webcommands.commands,
|
|
|
dedent=True)
|
|
|
|
|
|
def help_(ui, name, unknowncmd=False, full=True, **opts):
|
|
|
'''
|
|
|
Generate the help for 'name' as unformatted restructured text. If
|
|
|
'name' is None, describe the commands available.
|
|
|
'''
|
|
|
|
|
|
import commands # avoid cycle
|
|
|
|
|
|
def helpcmd(name):
|
|
|
try:
|
|
|
aliases, entry = cmdutil.findcmd(name, commands.table,
|
|
|
strict=unknowncmd)
|
|
|
except error.AmbiguousCommand as inst:
|
|
|
# py3k fix: except vars can't be used outside the scope of the
|
|
|
# except block, nor can be used inside a lambda. python issue4617
|
|
|
prefix = inst.args[0]
|
|
|
select = lambda c: c.lstrip('^').startswith(prefix)
|
|
|
rst = helplist(select)
|
|
|
return rst
|
|
|
|
|
|
rst = []
|
|
|
|
|
|
# check if it's an invalid alias and display its error if it is
|
|
|
if getattr(entry[0], 'badalias', None):
|
|
|
rst.append(entry[0].badalias + '\n')
|
|
|
if entry[0].unknowncmd:
|
|
|
try:
|
|
|
rst.extend(helpextcmd(entry[0].cmdname))
|
|
|
except error.UnknownCommand:
|
|
|
pass
|
|
|
return rst
|
|
|
|
|
|
# synopsis
|
|
|
if len(entry) > 2:
|
|
|
if entry[2].startswith('hg'):
|
|
|
rst.append("%s\n" % entry[2])
|
|
|
else:
|
|
|
rst.append('hg %s %s\n' % (aliases[0], entry[2]))
|
|
|
else:
|
|
|
rst.append('hg %s\n' % aliases[0])
|
|
|
# aliases
|
|
|
if full and not ui.quiet and len(aliases) > 1:
|
|
|
rst.append(_("\naliases: %s\n") % ', '.join(aliases[1:]))
|
|
|
rst.append('\n')
|
|
|
|
|
|
# description
|
|
|
doc = gettext(entry[0].__doc__)
|
|
|
if not doc:
|
|
|
doc = _("(no help text available)")
|
|
|
if util.safehasattr(entry[0], 'definition'): # aliased command
|
|
|
if entry[0].definition.startswith('!'): # shell alias
|
|
|
doc = _('shell alias for::\n\n %s') % entry[0].definition[1:]
|
|
|
else:
|
|
|
doc = _('alias for: hg %s\n\n%s') % (entry[0].definition, doc)
|
|
|
doc = doc.splitlines(True)
|
|
|
if ui.quiet or not full:
|
|
|
rst.append(doc[0])
|
|
|
else:
|
|
|
rst.extend(doc)
|
|
|
rst.append('\n')
|
|
|
|
|
|
# check if this command shadows a non-trivial (multi-line)
|
|
|
# extension help text
|
|
|
try:
|
|
|
mod = extensions.find(name)
|
|
|
doc = gettext(mod.__doc__) or ''
|
|
|
if '\n' in doc.strip():
|
|
|
msg = _('(use "hg help -e %s" to show help for '
|
|
|
'the %s extension)') % (name, name)
|
|
|
rst.append('\n%s\n' % msg)
|
|
|
except KeyError:
|
|
|
pass
|
|
|
|
|
|
# options
|
|
|
if not ui.quiet and entry[1]:
|
|
|
rst.append(optrst(_("options"), entry[1], ui.verbose))
|
|
|
|
|
|
if ui.verbose:
|
|
|
rst.append(optrst(_("global options"),
|
|
|
commands.globalopts, ui.verbose))
|
|
|
|
|
|
if not ui.verbose:
|
|
|
if not full:
|
|
|
rst.append(_('\n(use "hg %s -h" to show more help)\n')
|
|
|
% name)
|
|
|
elif not ui.quiet:
|
|
|
rst.append(_('\n(some details hidden, use --verbose '
|
|
|
'to show complete help)'))
|
|
|
|
|
|
return rst
|
|
|
|
|
|
|
|
|
def helplist(select=None):
|
|
|
# list of commands
|
|
|
if name == "shortlist":
|
|
|
header = _('basic commands:\n\n')
|
|
|
elif name == "debug":
|
|
|
header = _('debug commands (internal and unsupported):\n\n')
|
|
|
else:
|
|
|
header = _('list of commands:\n\n')
|
|
|
|
|
|
h = {}
|
|
|
cmds = {}
|
|
|
for c, e in commands.table.iteritems():
|
|
|
f = c.split("|", 1)[0]
|
|
|
if select and not select(f):
|
|
|
continue
|
|
|
if (not select and name != 'shortlist' and
|
|
|
e[0].__module__ != commands.__name__):
|
|
|
continue
|
|
|
if name == "shortlist" and not f.startswith("^"):
|
|
|
continue
|
|
|
f = f.lstrip("^")
|
|
|
if not ui.debugflag and f.startswith("debug") and name != "debug":
|
|
|
continue
|
|
|
doc = e[0].__doc__
|
|
|
if doc and 'DEPRECATED' in doc and not ui.verbose:
|
|
|
continue
|
|
|
doc = gettext(doc)
|
|
|
if not doc:
|
|
|
doc = _("(no help text available)")
|
|
|
h[f] = doc.splitlines()[0].rstrip()
|
|
|
cmds[f] = c.lstrip("^")
|
|
|
|
|
|
rst = []
|
|
|
if not h:
|
|
|
if not ui.quiet:
|
|
|
rst.append(_('no commands defined\n'))
|
|
|
return rst
|
|
|
|
|
|
if not ui.quiet:
|
|
|
rst.append(header)
|
|
|
fns = sorted(h)
|
|
|
for f in fns:
|
|
|
if ui.verbose:
|
|
|
commacmds = cmds[f].replace("|",", ")
|
|
|
rst.append(" :%s: %s\n" % (commacmds, h[f]))
|
|
|
else:
|
|
|
rst.append(' :%s: %s\n' % (f, h[f]))
|
|
|
|
|
|
if not name:
|
|
|
exts = listexts(_('enabled extensions:'), extensions.enabled())
|
|
|
if exts:
|
|
|
rst.append('\n')
|
|
|
rst.extend(exts)
|
|
|
|
|
|
rst.append(_("\nadditional help topics:\n\n"))
|
|
|
topics = []
|
|
|
for names, header, doc in helptable:
|
|
|
topics.append((names[0], header))
|
|
|
for t, desc in topics:
|
|
|
rst.append(" :%s: %s\n" % (t, desc))
|
|
|
|
|
|
if ui.quiet:
|
|
|
pass
|
|
|
elif ui.verbose:
|
|
|
rst.append('\n%s\n' % optrst(_("global options"),
|
|
|
commands.globalopts, ui.verbose))
|
|
|
if name == 'shortlist':
|
|
|
rst.append(_('\n(use "hg help" for the full list '
|
|
|
'of commands)\n'))
|
|
|
else:
|
|
|
if name == 'shortlist':
|
|
|
rst.append(_('\n(use "hg help" for the full list of commands '
|
|
|
'or "hg -v" for details)\n'))
|
|
|
elif name and not full:
|
|
|
rst.append(_('\n(use "hg help %s" to show the full help '
|
|
|
'text)\n') % name)
|
|
|
elif name and cmds and name in cmds.keys():
|
|
|
rst.append(_('\n(use "hg help -v -e %s" to show built-in '
|
|
|
'aliases and global options)\n') % name)
|
|
|
else:
|
|
|
rst.append(_('\n(use "hg help -v%s" to show built-in aliases '
|
|
|
'and global options)\n')
|
|
|
% (name and " " + name or ""))
|
|
|
return rst
|
|
|
|
|
|
def helptopic(name):
|
|
|
for names, header, doc in helptable:
|
|
|
if name in names:
|
|
|
break
|
|
|
else:
|
|
|
raise error.UnknownCommand(name)
|
|
|
|
|
|
rst = [minirst.section(header)]
|
|
|
|
|
|
# description
|
|
|
if not doc:
|
|
|
rst.append(" %s\n" % _("(no help text available)"))
|
|
|
if callable(doc):
|
|
|
rst += [" %s\n" % l for l in doc().splitlines()]
|
|
|
|
|
|
if not ui.verbose:
|
|
|
omitted = _('(some details hidden, use --verbose'
|
|
|
' to show complete help)')
|
|
|
indicateomitted(rst, omitted)
|
|
|
|
|
|
try:
|
|
|
cmdutil.findcmd(name, commands.table)
|
|
|
rst.append(_('\nuse "hg help -c %s" to see help for '
|
|
|
'the %s command\n') % (name, name))
|
|
|
except error.UnknownCommand:
|
|
|
pass
|
|
|
return rst
|
|
|
|
|
|
def helpext(name):
|
|
|
try:
|
|
|
mod = extensions.find(name)
|
|
|
doc = gettext(mod.__doc__) or _('no help text available')
|
|
|
except KeyError:
|
|
|
mod = None
|
|
|
doc = extensions.disabledext(name)
|
|
|
if not doc:
|
|
|
raise error.UnknownCommand(name)
|
|
|
|
|
|
if '\n' not in doc:
|
|
|
head, tail = doc, ""
|
|
|
else:
|
|
|
head, tail = doc.split('\n', 1)
|
|
|
rst = [_('%s extension - %s\n\n') % (name.split('.')[-1], head)]
|
|
|
if tail:
|
|
|
rst.extend(tail.splitlines(True))
|
|
|
rst.append('\n')
|
|
|
|
|
|
if not ui.verbose:
|
|
|
omitted = _('(some details hidden, use --verbose'
|
|
|
' to show complete help)')
|
|
|
indicateomitted(rst, omitted)
|
|
|
|
|
|
if mod:
|
|
|
try:
|
|
|
ct = mod.cmdtable
|
|
|
except AttributeError:
|
|
|
ct = {}
|
|
|
modcmds = set([c.split('|', 1)[0] for c in ct])
|
|
|
rst.extend(helplist(modcmds.__contains__))
|
|
|
else:
|
|
|
rst.append(_('(use "hg help extensions" for information on enabling'
|
|
|
' extensions)\n'))
|
|
|
return rst
|
|
|
|
|
|
def helpextcmd(name):
|
|
|
cmd, ext, mod = extensions.disabledcmd(ui, name,
|
|
|
ui.configbool('ui', 'strict'))
|
|
|
doc = gettext(mod.__doc__).splitlines()[0]
|
|
|
|
|
|
rst = listexts(_("'%s' is provided by the following "
|
|
|
"extension:") % cmd, {ext: doc}, indent=4)
|
|
|
rst.append('\n')
|
|
|
rst.append(_('(use "hg help extensions" for information on enabling '
|
|
|
'extensions)\n'))
|
|
|
return rst
|
|
|
|
|
|
|
|
|
rst = []
|
|
|
kw = opts.get('keyword')
|
|
|
if kw:
|
|
|
matches = topicmatch(name)
|
|
|
helpareas = []
|
|
|
if opts.get('extension'):
|
|
|
helpareas += [('extensions', _('Extensions'))]
|
|
|
if opts.get('command'):
|
|
|
helpareas += [('commands', _('Commands'))]
|
|
|
if not helpareas:
|
|
|
helpareas = [('topics', _('Topics')),
|
|
|
('commands', _('Commands')),
|
|
|
('extensions', _('Extensions')),
|
|
|
('extensioncommands', _('Extension Commands'))]
|
|
|
for t, title in helpareas:
|
|
|
if matches[t]:
|
|
|
rst.append('%s:\n\n' % title)
|
|
|
rst.extend(minirst.maketable(sorted(matches[t]), 1))
|
|
|
rst.append('\n')
|
|
|
if not rst:
|
|
|
msg = _('no matches')
|
|
|
hint = _('try "hg help" for a list of topics')
|
|
|
raise util.Abort(msg, hint=hint)
|
|
|
elif name and name != 'shortlist':
|
|
|
queries = []
|
|
|
if unknowncmd:
|
|
|
queries += [helpextcmd]
|
|
|
if opts.get('extension'):
|
|
|
queries += [helpext]
|
|
|
if opts.get('command'):
|
|
|
queries += [helpcmd]
|
|
|
if not queries:
|
|
|
queries = (helptopic, helpcmd, helpext, helpextcmd)
|
|
|
for f in queries:
|
|
|
try:
|
|
|
rst = f(name)
|
|
|
break
|
|
|
except error.UnknownCommand:
|
|
|
pass
|
|
|
else:
|
|
|
if unknowncmd:
|
|
|
raise error.UnknownCommand(name)
|
|
|
else:
|
|
|
msg = _('no such help topic: %s') % name
|
|
|
hint = _('try "hg help --keyword %s"') % name
|
|
|
raise util.Abort(msg, hint=hint)
|
|
|
else:
|
|
|
# program name
|
|
|
if not ui.quiet:
|
|
|
rst = [_("Mercurial Distributed SCM\n"), '\n']
|
|
|
rst.extend(helplist())
|
|
|
|
|
|
return ''.join(rst)
|
|
|
|
