mercurial/help.py
author Pierre-Yves David <pierre-yves.david@fb.com>
Wed, 12 Mar 2014 14:46:41 -0700
changeset 20775 982f13bef503
parent 20743 05267e6e94dd
child 20822 be87397f98c9
permissions -rw-r--r--
wireproto: move wireproto capabilities computation in a subfunction It will help people that need to add capabilities (in a more subtle was that just adding some to the list) in multiple way: 1. This function returns a list, not a string. Making it easier to look at, extend or alter the content. 2. The original capabilities function will be store in the dictionary of wire protocol command. So extension that wrap this function also need to update the dictionary entry. Both wrapping and update of the dictionary entry are needed because the `hello` wire protocol use the function itself. This is specifically sneaky for extension writer as ssh use the `hello` command while http use the `capabilities` command. With this new `_capabilities` function there is one and only one obvious place to wrap when needed.
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# help.py - help data for mercurial
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#
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# Copyright 2006 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from i18n import gettext, _
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import itertools, sys, os
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import error
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import extensions, revset, fileset, templatekw, templatefilters, filemerge
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import encoding, util, minirst
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import cmdutil
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def listexts(header, exts, indent=1, showdeprecated=False):
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    '''return a text listing of the given extensions'''
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    rst = []
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    if exts:
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        rst.append('\n%s\n\n' % header)
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        for name, desc in sorted(exts.iteritems()):
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            if '(DEPRECATED)' in desc and not showdeprecated:
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                continue
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            rst.append('%s:%s: %s\n' % (' ' * indent, name, desc))
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    return rst
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def extshelp():
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    rst = loaddoc('extensions')().splitlines(True)
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    rst.extend(listexts(
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        _('enabled extensions:'), extensions.enabled(), showdeprecated=True))
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    rst.extend(listexts(_('disabled extensions:'), extensions.disabled()))
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    doc = ''.join(rst)
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    return doc
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def optrst(options, verbose):
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    data = []
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    multioccur = False
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    for option in options:
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        if len(option) == 5:
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            shortopt, longopt, default, desc, optlabel = option
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        else:
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            shortopt, longopt, default, desc = option
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            optlabel = _("VALUE") # default label
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        if not verbose and ("DEPRECATED" in desc or _("DEPRECATED") in desc):
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            continue
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        so = ''
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        if shortopt:
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            so = '-' + shortopt
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        lo = '--' + longopt
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        if default:
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            desc += _(" (default: %s)") % default
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        if isinstance(default, list):
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            lo += " %s [+]" % optlabel
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            multioccur = True
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        elif (default is not None) and not isinstance(default, bool):
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            lo += " %s" % optlabel
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        data.append((so, lo, desc))
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    rst = minirst.maketable(data, 1)
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    if multioccur:
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        rst.append(_("\n[+] marked option can be specified multiple times\n"))
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    return ''.join(rst)
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def indicateomitted(rst, omitted, notomitted=None):
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    rst.append('\n\n.. container:: omitted\n\n    %s\n\n' % omitted)
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    if notomitted:
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        rst.append('\n\n.. container:: notomitted\n\n    %s\n\n' % notomitted)
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def topicmatch(kw):
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    """Return help topics matching kw.
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    Returns {'section': [(name, summary), ...], ...} where section is
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    one of topics, commands, extensions, or extensioncommands.
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    """
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    kw = encoding.lower(kw)
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    def lowercontains(container):
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        return kw in encoding.lower(container)  # translated in helptable
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    results = {'topics': [],
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               'commands': [],
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               'extensions': [],
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               'extensioncommands': [],
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               }
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    for names, header, doc in helptable:
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        if (sum(map(lowercontains, names))
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            or lowercontains(header)
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            or lowercontains(doc())):
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            results['topics'].append((names[0], header))
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    import commands # avoid cycle
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    for cmd, entry in commands.table.iteritems():
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        if cmd.startswith('debug'):
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            continue
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        if len(entry) == 3:
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            summary = entry[2]
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        else:
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            summary = ''
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        # translate docs *before* searching there
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        docs = _(getattr(entry[0], '__doc__', None)) or ''
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        if kw in cmd or lowercontains(summary) or lowercontains(docs):
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            doclines = docs.splitlines()
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            if doclines:
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                summary = doclines[0]
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            cmdname = cmd.split('|')[0].lstrip('^')
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            results['commands'].append((cmdname, summary))
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    for name, docs in itertools.chain(
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        extensions.enabled(False).iteritems(),
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        extensions.disabled().iteritems()):
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        # extensions.load ignores the UI argument
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        mod = extensions.load(None, name, '')
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        name = name.split('.')[-1]
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        if lowercontains(name) or lowercontains(docs):
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            # extension docs are already translated
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            results['extensions'].append((name, docs.splitlines()[0]))
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        for cmd, entry in getattr(mod, 'cmdtable', {}).iteritems():
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            if kw in cmd or (len(entry) > 2 and lowercontains(entry[2])):
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                cmdname = cmd.split('|')[0].lstrip('^')
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                if entry[0].__doc__:
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                    cmddoc = gettext(entry[0].__doc__).splitlines()[0]
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                else:
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                    cmddoc = _('(no help text available)')
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                results['extensioncommands'].append((cmdname, cmddoc))
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    return results
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def loaddoc(topic):
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    """Return a delayed loader for help/topic.txt."""
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    def loader():
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        if util.mainfrozen():
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            module = sys.executable
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        else:
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            module = __file__
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        base = os.path.dirname(module)
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        for dir in ('.', '..'):
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            docdir = os.path.join(base, dir, 'help')
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            if os.path.isdir(docdir):
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                break
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        path = os.path.join(docdir, topic + ".txt")
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        doc = gettext(util.readfile(path))
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        for rewriter in helphooks.get(topic, []):
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            doc = rewriter(topic, doc)
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        return doc
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    return loader
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helptable = sorted([
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    (["config", "hgrc"], _("Configuration Files"), loaddoc('config')),
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    (["dates"], _("Date Formats"), loaddoc('dates')),
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    (["patterns"], _("File Name Patterns"), loaddoc('patterns')),
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    (['environment', 'env'], _('Environment Variables'),
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     loaddoc('environment')),
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    (['revisions', 'revs'], _('Specifying Single Revisions'),
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     loaddoc('revisions')),
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    (['multirevs', 'mrevs'], _('Specifying Multiple Revisions'),
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     loaddoc('multirevs')),
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    (['revsets', 'revset'], _("Specifying Revision Sets"), loaddoc('revsets')),
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    (['filesets', 'fileset'], _("Specifying File Sets"), loaddoc('filesets')),
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    (['diffs'], _('Diff Formats'), loaddoc('diffs')),
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    (['merge-tools', 'mergetools'], _('Merge Tools'), loaddoc('merge-tools')),
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    (['templating', 'templates', 'template', 'style'], _('Template Usage'),
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     loaddoc('templates')),
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    (['urls'], _('URL Paths'), loaddoc('urls')),
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    (["extensions"], _("Using Additional Features"), extshelp),
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    (["subrepos", "subrepo"], _("Subrepositories"), loaddoc('subrepos')),
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    (["hgweb"], _("Configuring hgweb"), loaddoc('hgweb')),
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    (["glossary"], _("Glossary"), loaddoc('glossary')),
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    (["hgignore", "ignore"], _("Syntax for Mercurial Ignore Files"),
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     loaddoc('hgignore')),
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    (["phases"], _("Working with Phases"), loaddoc('phases')),
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])
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# Map topics to lists of callable taking the current topic help and
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# returning the updated version
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helphooks = {}
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def addtopichook(topic, rewriter):
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    helphooks.setdefault(topic, []).append(rewriter)
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def makeitemsdoc(topic, doc, marker, items):
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    """Extract docstring from the items key to function mapping, build a
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    .single documentation block and use it to overwrite the marker in doc
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    """
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    entries = []
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    for name in sorted(items):
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        text = (items[name].__doc__ or '').rstrip()
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        if not text:
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            continue
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        text = gettext(text)
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        lines = text.splitlines()
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        doclines = [(lines[0])]
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        for l in lines[1:]:
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            # Stop once we find some Python doctest
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            if l.strip().startswith('>>>'):
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                break
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            doclines.append('  ' + l.strip())
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        entries.append('\n'.join(doclines))
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    entries = '\n\n'.join(entries)
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    return doc.replace(marker, entries)
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def addtopicsymbols(topic, marker, symbols):
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    def add(topic, doc):
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        return makeitemsdoc(topic, doc, marker, symbols)
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    addtopichook(topic, add)
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addtopicsymbols('filesets', '.. predicatesmarker', fileset.symbols)
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addtopicsymbols('merge-tools', '.. internaltoolsmarker', filemerge.internals)
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addtopicsymbols('revsets', '.. predicatesmarker', revset.symbols)
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addtopicsymbols('templates', '.. keywordsmarker', templatekw.dockeywords)
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addtopicsymbols('templates', '.. filtersmarker', templatefilters.filters)
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def help_(ui, name, unknowncmd=False, full=True, **opts):
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    '''
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    Generate the help for 'name' as unformatted restructured text. If
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    'name' is None, describe the commands available.
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    '''
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    import commands # avoid cycle
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    def helpcmd(name):
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        try:
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            aliases, entry = cmdutil.findcmd(name, commands.table,
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                                             strict=unknowncmd)
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        except error.AmbiguousCommand, inst:
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            # py3k fix: except vars can't be used outside the scope of the
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            # except block, nor can be used inside a lambda. python issue4617
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            prefix = inst.args[0]
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            select = lambda c: c.lstrip('^').startswith(prefix)
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            rst = helplist(select)
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            return rst
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        rst = []
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        # check if it's an invalid alias and display its error if it is
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        if getattr(entry[0], 'badalias', False):
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            if not unknowncmd:
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                ui.pushbuffer()
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                entry[0](ui)
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                rst.append(ui.popbuffer())
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            return rst
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        # synopsis
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        if len(entry) > 2:
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            if entry[2].startswith('hg'):
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                rst.append("%s\n" % entry[2])
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            else:
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                rst.append('hg %s %s\n' % (aliases[0], entry[2]))
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        else:
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            rst.append('hg %s\n' % aliases[0])
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        # aliases
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        if full and not ui.quiet and len(aliases) > 1:
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            rst.append(_("\naliases: %s\n") % ', '.join(aliases[1:]))
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        rst.append('\n')
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        # description
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        doc = gettext(entry[0].__doc__)
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        if not doc:
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            doc = _("(no help text available)")
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        if util.safehasattr(entry[0], 'definition'):  # aliased command
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            if entry[0].definition.startswith('!'):  # shell alias
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                doc = _('shell alias for::\n\n    %s') % entry[0].definition[1:]
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            else:
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                doc = _('alias for: hg %s\n\n%s') % (entry[0].definition, doc)
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        doc = doc.splitlines(True)
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        if ui.quiet or not full:
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            rst.append(doc[0])
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        else:
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            rst.extend(doc)
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        rst.append('\n')
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        # check if this command shadows a non-trivial (multi-line)
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        # extension help text
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        try:
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            mod = extensions.find(name)
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            doc = gettext(mod.__doc__) or ''
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            if '\n' in doc.strip():
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                msg = _('use "hg help -e %s" to show help for '
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                        'the %s extension') % (name, name)
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                rst.append('\n%s\n' % msg)
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        except KeyError:
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            pass
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        # options
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        if not ui.quiet and entry[1]:
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            rst.append('\n%s\n\n' % _("options:"))
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            rst.append(optrst(entry[1], ui.verbose))
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   291
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        if ui.verbose:
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            rst.append('\n%s\n\n' % _("global options:"))
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            rst.append(optrst(commands.globalopts, ui.verbose))
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        if not ui.verbose:
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            if not full:
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                rst.append(_('\nuse "hg help %s" to show the full help text\n')
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                           % name)
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   300
            elif not ui.quiet:
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                omitted = _('use "hg -v help %s" to show more complete'
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                            ' help and the global options') % name
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                notomitted = _('use "hg -v help %s" to show'
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                               ' the global options') % name
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                indicateomitted(rst, omitted, notomitted)
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   306
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        return rst
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   308
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   309
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    def helplist(select=None):
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        # list of commands
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        if name == "shortlist":
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            header = _('basic commands:\n\n')
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   314
        else:
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   315
            header = _('list of commands:\n\n')
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   316
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   317
        h = {}
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        cmds = {}
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        for c, e in commands.table.iteritems():
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            f = c.split("|", 1)[0]
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   321
            if select and not select(f):
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   322
                continue
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   323
            if (not select and name != 'shortlist' and
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   324
                e[0].__module__ != commands.__name__):
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   325
                continue
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   326
            if name == "shortlist" and not f.startswith("^"):
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   327
                continue
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   328
            f = f.lstrip("^")
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   329
            if not ui.debugflag and f.startswith("debug"):
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   330
                continue
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   331
            doc = e[0].__doc__
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   332
            if doc and 'DEPRECATED' in doc and not ui.verbose:
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   333
                continue
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   334
            doc = gettext(doc)
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   335
            if not doc:
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   336
                doc = _("(no help text available)")
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   337
            h[f] = doc.splitlines()[0].rstrip()
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   338
            cmds[f] = c.lstrip("^")
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   339
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   340
        rst = []
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   341
        if not h:
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   342
            if not ui.quiet:
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   343
                rst.append(_('no commands defined\n'))
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   344
            return rst
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   345
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   346
        if not ui.quiet:
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   347
            rst.append(header)
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   348
        fns = sorted(h)
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   349
        for f in fns:
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   350
            if ui.verbose:
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   351
                commacmds = cmds[f].replace("|",", ")
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   352
                rst.append(" :%s: %s\n" % (commacmds, h[f]))
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   353
            else:
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   354
                rst.append(' :%s: %s\n' % (f, h[f]))
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   355
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   356
        if not name:
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   357
            exts = listexts(_('enabled extensions:'), extensions.enabled())
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   358
            if exts:
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   359
                rst.append('\n')
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   360
                rst.extend(exts)
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parents: 17837
diff changeset
   361
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   362
            rst.append(_("\nadditional help topics:\n\n"))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   363
            topics = []
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   364
            for names, header, doc in helptable:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   365
                topics.append((names[0], header))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   366
            for t, desc in topics:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   367
                rst.append(" :%s: %s\n" % (t, desc))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   368
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   369
        optlist = []
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   370
        if not ui.quiet:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   371
            if ui.verbose:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   372
                optlist.append((_("global options:"), commands.globalopts))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   373
                if name == 'shortlist':
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   374
                    optlist.append((_('use "hg help" for the full list '
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   375
                                           'of commands'), ()))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   376
            else:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   377
                if name == 'shortlist':
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   378
                    msg = _('use "hg help" for the full list of commands '
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   379
                            'or "hg -v" for details')
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   380
                elif name and not full:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   381
                    msg = _('use "hg help %s" to show the full help '
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   382
                            'text') % name
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   383
                else:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   384
                    msg = _('use "hg -v help%s" to show builtin aliases and '
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   385
                            'global options') % (name and " " + name or "")
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   386
                optlist.append((msg, ()))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   387
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   388
        if optlist:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   389
            for title, options in optlist:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   390
                rst.append('\n%s\n' % title)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   391
                if options:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   392
                    rst.append('\n%s\n' % optrst(options, ui.verbose))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   393
        return rst
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   394
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   395
    def helptopic(name):
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   396
        for names, header, doc in helptable:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   397
            if name in names:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   398
                break
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   399
        else:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   400
            raise error.UnknownCommand(name)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   401
18748
6e676fb6ea44 help: use a full header for topic titles
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 18746
diff changeset
   402
        rst = [minirst.section(header)]
6e676fb6ea44 help: use a full header for topic titles
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 18746
diff changeset
   403
18746
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   404
        # description
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   405
        if not doc:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   406
            rst.append("    %s\n" % _("(no help text available)"))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   407
        if util.safehasattr(doc, '__call__'):
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   408
            rst += ["    %s\n" % l for l in doc().splitlines()]
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   409
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   410
        if not ui.verbose:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   411
            omitted = (_('use "hg help -v %s" to show more complete help') %
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   412
                       name)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   413
            indicateomitted(rst, omitted)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   414
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   415
        try:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   416
            cmdutil.findcmd(name, commands.table)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   417
            rst.append(_('\nuse "hg help -c %s" to see help for '
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   418
                       'the %s command\n') % (name, name))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   419
        except error.UnknownCommand:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   420
            pass
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   421
        return rst
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   422
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   423
    def helpext(name):
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   424
        try:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   425
            mod = extensions.find(name)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   426
            doc = gettext(mod.__doc__) or _('no help text available')
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   427
        except KeyError:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   428
            mod = None
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   429
            doc = extensions.disabledext(name)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   430
            if not doc:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   431
                raise error.UnknownCommand(name)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   432
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   433
        if '\n' not in doc:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   434
            head, tail = doc, ""
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   435
        else:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   436
            head, tail = doc.split('\n', 1)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   437
        rst = [_('%s extension - %s\n\n') % (name.split('.')[-1], head)]
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   438
        if tail:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   439
            rst.extend(tail.splitlines(True))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   440
            rst.append('\n')
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   441
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   442
        if not ui.verbose:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   443
            omitted = (_('use "hg help -v %s" to show more complete help') %
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   444
                       name)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   445
            indicateomitted(rst, omitted)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   446
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   447
        if mod:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   448
            try:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   449
                ct = mod.cmdtable
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   450
            except AttributeError:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   451
                ct = {}
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   452
            modcmds = set([c.split('|', 1)[0] for c in ct])
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   453
            rst.extend(helplist(modcmds.__contains__))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   454
        else:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   455
            rst.append(_('use "hg help extensions" for information on enabling '
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   456
                       'extensions\n'))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   457
        return rst
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   458
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   459
    def helpextcmd(name):
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   460
        cmd, ext, mod = extensions.disabledcmd(ui, name,
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   461
                                               ui.configbool('ui', 'strict'))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   462
        doc = gettext(mod.__doc__).splitlines()[0]
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   463
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   464
        rst = listexts(_("'%s' is provided by the following "
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   465
                              "extension:") % cmd, {ext: doc}, indent=4)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   466
        rst.append('\n')
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   467
        rst.append(_('use "hg help extensions" for information on enabling '
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   468
                   'extensions\n'))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   469
        return rst
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   470
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   471
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   472
    rst = []
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   473
    kw = opts.get('keyword')
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   474
    if kw:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   475
        matches = topicmatch(kw)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   476
        for t, title in (('topics', _('Topics')),
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   477
                         ('commands', _('Commands')),
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   478
                         ('extensions', _('Extensions')),
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   479
                         ('extensioncommands', _('Extension Commands'))):
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   480
            if matches[t]:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   481
                rst.append('%s:\n\n' % title)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   482
                rst.extend(minirst.maketable(sorted(matches[t]), 1))
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   483
                rst.append('\n')
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   484
    elif name and name != 'shortlist':
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   485
        i = None
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   486
        if unknowncmd:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   487
            queries = (helpextcmd,)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   488
        elif opts.get('extension'):
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   489
            queries = (helpext,)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   490
        elif opts.get('command'):
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   491
            queries = (helpcmd,)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   492
        else:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   493
            queries = (helptopic, helpcmd, helpext, helpextcmd)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   494
        for f in queries:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   495
            try:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   496
                rst = f(name)
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   497
                i = None
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   498
                break
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   499
            except error.UnknownCommand, inst:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   500
                i = inst
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   501
        if i:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   502
            raise i
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   503
    else:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   504
        # program name
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   505
        if not ui.quiet:
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   506
            rst = [_("Mercurial Distributed SCM\n"), '\n']
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   507
        rst.extend(helplist())
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   508
c0087d48ec3a help: move the majority of the help command to the help module
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 17837
diff changeset
   509
    return ''.join(rst)