~bzr-pqm/bzr/bzr.dev

#!/usr/bin/python

 

# Copyright (C) 2005 by Hans Ulrich Niedermann

# Portions Copyright (C) 2005 by Canonical Ltd

 

 

#<<< code taken from bzr (C) Canonical

 

import os, sys

 

import bzrlib, bzrlib.help

 

#>>> code taken from bzr (C) Canonical

 

#<<< code by HUN

 

import re

class Parser:

 

    def parse_line(self, line):

        pass

 

 

class CommandListParser(Parser):

 

    """Parser for output of "bzr help commands".

 

    The parsed content can then be used to

    - write a "COMMAND OVERVIEW" section into a man page

    - provide a list of all commands

    """

 

    def __init__(self,params):

        self.params = params

        self.command_usage = []

        self.all_commands = []

        self.usage_exp = re.compile("([a-z0-9-]+).*")

        self.descr_exp = re.compile("    ([A-Z].*)\s*")

        self.state = 0

        self.command = None

        self.usage = None

        self.descr = None

 

    def parse_line(self, line):

        m = self.usage_exp.match(line)

        if line == '':

                return

        if m:

            if self.state == 0:

                if self.usage:

                    self.command_usage.append((self.command,self.usage,self.descr))

                    self.all_commands.append(self.command)

                self.usage = " ".join(line.split(" ")[1:])

                self.command = m.groups()[0]

            else:

                raise RuntimeError, "matching usage line in state %d" % state

            self.state = 1

            return

        m = self.descr_exp.match(line)

        if m:

            if self.state == 1:

                self.descr = m.groups()[0]

            else:

                raise RuntimeError, "matching descr line in state %d" % state

            self.state = 0

            return

        raise RuntimeError, "Cannot parse this line ('%s')." % line

 

    def end_parse(self):

        if self.state == 0:

            if self.usage:

                self.command_usage.append((self.command,self.usage,self.descr))

                self.all_commands.append(self.command)

        else:

            raise RuntimeError, "ending parse in state %d" % state

 

    def write_to_manpage(self, outfile):

        bzrcmd = self.params["bzrcmd"]

        outfile.write('.SH "COMMAND OVERVIEW"\n')

        for (command,usage,descr) in self.command_usage:

            outfile.write('.TP\n.B "%s %s"\n%s\n' % (bzrcmd, usage, descr))

 

 

class HelpReader:

 

    def __init__(self, parser):

        self.parser = parser

 

    def write(self, data):

        if data[-1] == '\n':

            data = data[:-1]

        for line in data.split('\n'):

            self.parser.parse_line(line)

 

 

def write_command_details(params, command, usage, descr, outfile):

    x = ('.SS "%s %s"\n.B "%s"\n.PP\n.B "Usage:"\n%s %s\n\n' %

         (params["bzrcmd"],

          command,

          descr,

          params["bzrcmd"],

          usage))

    outfile.write(man_escape(x))

.\\\" Man page for %(bzrcmd)s (bazaar-ng)

# The DESCRIPTION text was taken from http://www.bazaar-ng.org/

# and is thus (C) Canonical

.TH bzr 1 "%(datestamp)s" "%(version)s" "bazaar-ng"

%(bzrcmd)s - bazaar-ng next-generation distributed version control

bazaar-ng (or

.B "%(bzrcmd)s"

) 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.

.SS "Warning"

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.

is to look for external command.

.I "BZREMAIL"

E-Mail address of the user. Overrides

.I "~/.bzr.conf/email" and

.IR "EMAIL" .

Example content:

.I "John Doe <john@example.com>"

E-Mail address of the user. Overridden by the content of the file

.I "~/.bzr.conf/email"

and of the environment variable

.IR "BZREMAIL" .

.I "~/.bzr.conf/"

Directory where all the user\'s settings are stored.

.TP

.I "~/.bzr.conf/email"

Stores name and email address of the user. Overrides content of

.I "EMAIL"

environment variable. Example content:

.I "John Doe <john@example.com>"

.UR http://www.bazaar-ng.org/

.BR http://www.bazaar-ng.org/,

.UR http://www.bazaar-ng.org/doc/

.BR http://www.bazaar-ng.org/doc/

def main():

    t = time.time()

    tt = time.gmtime(t)

    params = \

           { "bzrcmd": "bzr",

             "datestamp": time.strftime("%Y-%m-%d",tt),

             "timestamp": time.strftime("%Y-%m-%d %H:%M:%S +0000",tt),

             "version": bzrlib.__version__,

             }

 

    clp = CommandListParser(params)

    bzrlib.help.help("commands", outfile=HelpReader(clp))

    clp.end_parse()

 

    filename = "bzr.1"

    if len(sys.argv) == 2:

        filename = sys.argv[1]

    if filename == "-":

        outfile = sys.stdout

    else:

        outfile = open(filename,"w")

 

    outfile.write(man_preamble % params)

    outfile.write(man_escape(man_head % params))

    clp.write_to_manpage(outfile)

 

    # FIXME:

    #   This doesn't do more than the summary so far.

    #outfile.write('.SH "DETAILED COMMAND DESCRIPTION"\n')

    #for (command,usage,descr) in clp.command_usage:

    #    write_command_details(params, command, usage, descr, outfile = outfile)

 

    outfile.write(man_escape(man_foot % params))

 

 

if __name__ == '__main__':

    main()

 

 

#>>> code by HUN