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# Copyright (C) 2005-2010 Canonical Ltd
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# Copyright (C) 2005 by Hans Ulrich Niedermann
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# Portions Copyright (C) 2005 by Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""man.py - create man page from built-in bzr help and static text
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* use usage information instead of simple "bzr foo" in COMMAND OVERVIEW
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from __future__ import absolute_import
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PLUGINS_TO_DOCUMENT = ["launchpad"]
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#<<< code taken from bzr (C) Canonical
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version_info = sys.version_info
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except AttributeError:
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version_info = 1, 5 # 1.5 or older
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REINVOKE = "__BZR_REINVOKE"
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if version_info < NEED_VERS:
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if not os.environ.has_key(REINVOKE):
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# mutating os.environ doesn't work in old Pythons
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os.putenv(REINVOKE, "1")
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for python in 'python2.4', 'python2.3':
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os.execvp(python, [python] + sys.argv)
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print >>sys.stderr, "bzr-man.py: error: cannot find a suitable python interpreter"
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print >>sys.stderr, " (need %d.%d or later)" % NEED_VERS
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import bzrlib, bzrlib.help
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#>>> code taken from bzr (C) Canonical
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import bzrlib.help_topics
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import bzrlib.commands
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from bzrlib.plugin import load_plugins
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def get_filename(options):
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"""Provides name of manpage"""
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return "%s.1" % (options.bzr_name)
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def infogen(options, outfile):
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"""Assembles a man page"""
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{ "bzrcmd": options.bzr_name,
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"datestamp": time.strftime("%Y-%m-%d",tt),
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"timestamp": time.strftime("%Y-%m-%d %H:%M:%S +0000",tt),
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"version": bzrlib.__version__,
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outfile.write(man_preamble % params)
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outfile.write(man_escape(man_head % params))
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outfile.write(man_escape(getcommand_list(params)))
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outfile.write(man_escape(getcommand_help(params)))
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outfile.write("".join(environment_variables()))
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outfile.write(man_escape(man_foot % params))
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def man_escape(string):
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"""Escapes strings for man page compatibility"""
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result = string.replace("\\","\\\\")
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result = result.replace("`","\\'")
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result = result.replace("'","\\*(Aq")
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result = result.replace("`","\\`")
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result = result.replace("'","\\'")
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result = result.replace("-","\\-")
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def command_name_list():
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"""Builds a list of command names from bzrlib"""
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command_names = bzrlib.commands.builtin_command_names()
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for cmdname in bzrlib.commands.plugin_command_names():
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cmd_object = bzrlib.commands.get_cmd_object(cmdname)
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if (PLUGINS_TO_DOCUMENT is None or
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cmd_object.plugin_name() in PLUGINS_TO_DOCUMENT):
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command_names.append(cmdname)
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def getcommand_list (params):
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"""Builds summary help for command names in manpage format"""
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bzrcmd = params["bzrcmd"]
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output = '.SH "COMMAND OVERVIEW"\n'
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for cmd_name in command_name_list():
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cmd_object = bzrlib.commands.get_cmd_object(cmd_name)
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cmd_help = cmd_object.help()
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firstline = cmd_help.split('\n', 1)[0]
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usage = cmd_object._usage()
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tmp = '.TP\n.B "%s"\n%s\n' % (usage, firstline)
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raise RuntimeError, "Command '%s' has no help text" % (cmd_name)
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def getcommand_help(params):
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"""Shows individual options for a bzr command"""
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output='.SH "COMMAND REFERENCE"\n'
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for cmd_name in command_name_list():
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cmd_object = bzrlib.commands.get_cmd_object(cmd_name)
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if cmd_object.hidden:
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formatted[cmd_name] = format_command(params, cmd_object)
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for alias in cmd_object.aliases:
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formatted[alias] = format_alias(params, alias, cmd_name)
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for cmd_name in sorted(formatted):
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output += formatted[cmd_name]
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def format_command(params, cmd):
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"""Provides long help for each public command"""
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subsection_header = '.SS "%s"\n' % (cmd._usage())
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doc = "%s\n" % (cmd.__doc__)
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doc = bzrlib.help_topics.help_as_plain_text(cmd.help())
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# A dot at the beginning of a line is interpreted as a macro.
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# Simply join lines that begin with a dot with the previous
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# line to work around this.
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doc = doc.replace("\n.", ".")
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options = cmd.options()
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option_str = "\nOptions:\n"
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for option_name, option in sorted(options.items()):
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for name, short_name, argname, help in option.iter_switches():
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if option.is_hidden(name):
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if argname is not None:
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l += ', -' + short_name
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l += (30 - len(l)) * ' ' + (help or '')
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wrapped = textwrap.fill(l, initial_indent='',
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subsequent_indent=30*' ',
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break_long_words=False,
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option_str += wrapped + '\n'
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if len(cmd.aliases) > 1:
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aliases_str += '\nAliases: '
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aliases_str += '\nAlias: '
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aliases_str += ', '.join(cmd.aliases)
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see_also = cmd.get_see_also()
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see_also_str += '\nSee also: '
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see_also_str += ', '.join(see_also)
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return subsection_header + option_str + aliases_str + see_also_str + "\n" + doc + "\n"
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def format_alias(params, alias, cmd_name):
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help = '.SS "bzr %s"\n' % alias
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help += 'Alias for "%s", see "bzr %s".\n' % (cmd_name, cmd_name)
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def environment_variables():
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yield ".SH \"ENVIRONMENT\"\n"
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from bzrlib.help_topics import known_env_variables
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for k, desc in known_env_variables:
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yield ".I \"%s\"\n" % k
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yield man_escape(desc) + "\n"
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def parse_line(self, line):
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class CommandListParser(Parser):
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"""Parser for output of "bzr help commands".
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The parsed content can then be used to
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- write a "COMMAND OVERVIEW" section into a man page
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- provide a list of all commands
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def __init__(self,params):
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self.command_usage = []
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self.all_commands = []
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self.usage_exp = re.compile("([a-z0-9-]+).*")
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self.descr_exp = re.compile(" ([A-Z].*)\s*")
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def parse_line(self, line):
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m = self.usage_exp.match(line)
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self.command_usage.append((self.command,self.usage,self.descr))
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self.all_commands.append(self.command)
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self.command = m.groups()[0]
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raise Error, "matching usage line in state %d" % state
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m = self.descr_exp.match(line)
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self.descr = m.groups()[0]
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raise Error, "matching descr line in state %d" % state
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raise Error, "Cannot parse this line"
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self.command_usage.append((self.command,self.usage,self.descr))
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self.all_commands.append(self.command)
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raise Error, "ending parse in state %d" % state
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def write_to_manpage(self, outfile):
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bzrcmd = self.params["bzrcmd"]
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outfile.write('.SH "COMMAND OVERVIEW"\n')
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for (command,usage,descr) in self.command_usage:
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outfile.write('.TP\n.B "%s %s"\n%s\n\n' % (bzrcmd, usage, descr))
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def __init__(self, parser):
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def write(self, data):
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for line in data.split('\n'):
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self.parser.parse_line(line)
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def write_command_details(params, command, usage, descr, outfile):
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x = ('.SS "%s %s"\n.B "%s"\n.PP\n.B "Usage:"\n%s %s\n\n' %
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outfile.write(man_escape(x))
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man_preamble = """\
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.\\\"Man page for Bazaar (%(bzrcmd)s)
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.\\\" Man page for %(bzrcmd)s (bazaar-ng)
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.\\\" Large parts of this file are autogenerated from the output of
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.\\\" \"%(bzrcmd)s help commands\"
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.\\\" \"%(bzrcmd)s help <cmd>\"
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.ie \\n(.g .ds Aq \\(aq
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.\\\" Generation time: %(timestamp)s
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# The DESCRIPTION text was taken from http://www.bazaar-ng.org/
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# and is thus (C) Canonical
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.TH bzr 1 "%(datestamp)s" "%(version)s" "Bazaar"
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.TH bzr 1 "%(datestamp)s" "%(version)s" "bazaar-ng"
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%(bzrcmd)s - Bazaar next-generation distributed version control
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%(bzrcmd)s - bazaar-ng next-generation distributed version control
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.SH "DESCRIPTION"
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Bazaar (or %(bzrcmd)s) is a distributed version control system that is powerful,
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friendly, and scalable. Bazaar is a project of Canonical Ltd and part of
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the GNU Project to develop a free operating system.
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Bazaar keeps track of changes to software source code (or similar information);
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lets you explore who changed it, when, and why; merges concurrent changes; and
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helps people work together in a team.
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) is a project of Canonical to develop an open source distributed version control system that is powerful, friendly, and scalable. Version control means a system that keeps track of previous revisions of software source code or similar information and helps people work on it in teams.
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bazaar-ng is at an early stage of development, and the design is still changing from week to week. This man page here may be inconsistent with itself, with other documentation or with the code, and sometimes refer to features that are planned but not yet written. Comments are still very welcome; please send them to bazaar-ng@lists.canonical.com.
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is to look for external command.
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E-Mail address of the user. Overrides
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.I "~/.bzr.conf/email" and
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.I "John Doe <john@example.com>"
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E-Mail address of the user. Overridden by the content of the file
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.I "~/.bzr.conf/email"
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and of the environment variable
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.I "~/.bazaar/bazaar.conf"
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Contains the user's default configuration. The section
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is used to define general configuration that will be applied everywhere.
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can be used to create command aliases for
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commonly used options.
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A typical config file might look something like:
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email=John Doe <jdoe@isp.com>
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commit = commit --strict
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log10 = log --short -r -10..-1
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Directory where all the user\'s settings are stored.
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.I "~/.bzr.conf/email"
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Stores name and email address of the user. Overrides content of
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environment variable. Example content:
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.I "John Doe <john@example.com>"
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.UR http://bazaar.canonical.com/
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.BR http://bazaar.canonical.com/
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.UR http://www.bazaar-ng.org/
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.BR http://www.bazaar-ng.org/,
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.UR http://www.bazaar-ng.org/doc/
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.BR http://www.bazaar-ng.org/doc/
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"datestamp": time.strftime("%Y-%m-%d",tt),
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"timestamp": time.strftime("%Y-%m-%d %H:%M:%S +0000",tt),
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"version": bzrlib.__version__,
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clp = CommandListParser(params)
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bzrlib.help.help("commands", outfile=HelpReader(clp))
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if len(sys.argv) == 2:
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filename = sys.argv[1]
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outfile = open(filename,"w")
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outfile.write(man_preamble % params)
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outfile.write(man_escape(man_head % params))
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clp.write_to_manpage(outfile)
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# This doesn't do more than the summary so far.
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#outfile.write('.SH "DETAILED COMMAND DESCRIPTION"\n')
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#for (command,usage,descr) in clp.command_usage:
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# write_command_details(params, command, usage, descr, outfile = outfile)
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outfile.write(man_escape(man_foot % params))
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if __name__ == '__main__':