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#!/usr/bin/env python
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"""usage: %s DOC ...
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where DOC is the name of a document
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"""
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from __future__ import absolute_import
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import os
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import sys
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import textwrap
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# This script is executed during installs and may not have C extensions
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# available. Relax C module requirements.
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os.environ['HGMODULEPOLICY'] = 'allow'
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# import from the live mercurial repo
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sys.path.insert(0, "..")
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from mercurial import demandimport; demandimport.enable()
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from mercurial import (
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commands,
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extensions,
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help,
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minirst,
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ui as uimod,
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)
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from mercurial.i18n import (
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gettext,
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_,
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)
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table = commands.table
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globalopts = commands.globalopts
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helptable = help.helptable
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loaddoc = help.loaddoc
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def get_desc(docstr):
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if not docstr:
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return "", ""
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# sanitize
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docstr = docstr.strip("\n")
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docstr = docstr.rstrip()
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shortdesc = docstr.splitlines()[0].strip()
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i = docstr.find("\n")
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if i != -1:
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desc = docstr[i + 2:]
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else:
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desc = shortdesc
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desc = textwrap.dedent(desc)
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return (shortdesc, desc)
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def get_opts(opts):
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for opt in opts:
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if len(opt) == 5:
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shortopt, longopt, default, desc, optlabel = opt
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else:
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shortopt, longopt, default, desc = opt
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optlabel = _("VALUE")
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allopts = []
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if shortopt:
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allopts.append("-%s" % shortopt)
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if longopt:
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allopts.append("--%s" % longopt)
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if isinstance(default, list):
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allopts[-1] += " <%s[+]>" % optlabel
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elif (default is not None) and not isinstance(default, bool):
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allopts[-1] += " <%s>" % optlabel
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if '\n' in desc:
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# only remove line breaks and indentation
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desc = ' '.join(l.lstrip() for l in desc.split('\n'))
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desc += default and _(" (default: %s)") % default or ""
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yield (", ".join(allopts), desc)
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def get_cmd(cmd, cmdtable):
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d = {}
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attr = cmdtable[cmd]
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cmds = cmd.lstrip("^").split("|")
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d['cmd'] = cmds[0]
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d['aliases'] = cmd.split("|")[1:]
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d['desc'] = get_desc(gettext(attr[0].__doc__))
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d['opts'] = list(get_opts(attr[1]))
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s = 'hg ' + cmds[0]
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if len(attr) > 2:
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if not attr[2].startswith('hg'):
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s += ' ' + attr[2]
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else:
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s = attr[2]
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d['synopsis'] = s.strip()
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return d
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def showdoc(ui):
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# print options
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ui.write(minirst.section(_("Options")))
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multioccur = False
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for optstr, desc in get_opts(globalopts):
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ui.write("%s\n %s\n\n" % (optstr, desc))
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if optstr.endswith("[+]>"):
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multioccur = True
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if multioccur:
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ui.write(_("\n[+] marked option can be specified multiple times\n"))
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ui.write("\n")
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# print cmds
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ui.write(minirst.section(_("Commands")))
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commandprinter(ui, table, minirst.subsection)
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# print help topics
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# The config help topic is included in the hgrc.5 man page.
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helpprinter(ui, helptable, minirst.section, exclude=['config'])
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ui.write(minirst.section(_("Extensions")))
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ui.write(_("This section contains help for extensions that are "
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"distributed together with Mercurial. Help for other "
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"extensions is available in the help system."))
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ui.write(("\n\n"
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".. contents::\n"
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" :class: htmlonly\n"
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" :local:\n"
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" :depth: 1\n\n"))
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for extensionname in sorted(allextensionnames()):
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mod = extensions.load(ui, extensionname, None)
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ui.write(minirst.subsection(extensionname))
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ui.write("%s\n\n" % gettext(mod.__doc__))
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cmdtable = getattr(mod, 'cmdtable', None)
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if cmdtable:
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ui.write(minirst.subsubsection(_('Commands')))
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commandprinter(ui, cmdtable, minirst.subsubsubsection)
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def showtopic(ui, topic):
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extrahelptable = [
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(["common"], '', loaddoc('common')),
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(["hg.1"], '', loaddoc('hg.1')),
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(["hg-ssh.8"], '', loaddoc('hg-ssh.8')),
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(["hgignore.5"], '', loaddoc('hgignore.5')),
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(["hgrc.5"], '', loaddoc('hgrc.5')),
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(["hgignore.5.gendoc"], '', loaddoc('hgignore')),
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(["hgrc.5.gendoc"], '', loaddoc('config')),
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]
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helpprinter(ui, helptable + extrahelptable, None, include=[topic])
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def helpprinter(ui, helptable, sectionfunc, include=[], exclude=[]):
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for names, sec, doc in helptable:
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if exclude and names[0] in exclude:
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continue
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if include and names[0] not in include:
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continue
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for name in names:
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ui.write(".. _%s:\n" % name)
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ui.write("\n")
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if sectionfunc:
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ui.write(sectionfunc(sec))
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if callable(doc):
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doc = doc(ui)
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ui.write(doc)
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ui.write("\n")
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def commandprinter(ui, cmdtable, sectionfunc):
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h = {}
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for c, attr in cmdtable.items():
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f = c.split("|")[0]
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f = f.lstrip("^")
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h[f] = c
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cmds = h.keys()
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cmds.sort()
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for f in cmds:
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if f.startswith("debug"):
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continue
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d = get_cmd(h[f], cmdtable)
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ui.write(sectionfunc(d['cmd']))
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# short description
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ui.write(d['desc'][0])
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# synopsis
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ui.write("::\n\n")
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synopsislines = d['synopsis'].splitlines()
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for line in synopsislines:
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# some commands (such as rebase) have a multi-line
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# synopsis
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ui.write(" %s\n" % line)
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ui.write('\n')
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# description
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ui.write("%s\n\n" % d['desc'][1])
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# options
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opt_output = list(d['opts'])
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if opt_output:
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opts_len = max([len(line[0]) for line in opt_output])
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ui.write(_("Options:\n\n"))
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multioccur = False
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for optstr, desc in opt_output:
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if desc:
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s = "%-*s %s" % (opts_len, optstr, desc)
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else:
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s = optstr
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ui.write("%s\n" % s)
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if optstr.endswith("[+]>"):
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multioccur = True
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if multioccur:
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ui.write(_("\n[+] marked option can be specified"
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" multiple times\n"))
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ui.write("\n")
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# aliases
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if d['aliases']:
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ui.write(_(" aliases: %s\n\n") % " ".join(d['aliases']))
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def allextensionnames():
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return extensions.enabled().keys() + extensions.disabled().keys()
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if __name__ == "__main__":
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doc = 'hg.1.gendoc'
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if len(sys.argv) > 1:
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doc = sys.argv[1]
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ui = uimod.ui()
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if doc == 'hg.1.gendoc':
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showdoc(ui)
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else:
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showtopic(ui, sys.argv[1])
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