/brz/remove-bazaar

#!/usr/bin/python3

# Copyright 2009-2010 Canonical Ltd.

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Generate doc/en/release-notes/index.txt from the per-series NEWS files.

NEWS files are kept in doc/en/release-notes/, one file per series, e.g.

doc/en/release-notes/brz-2.3.txt

"""

# XXX: add test_source test that latest doc/en/release-notes/brz-*.txt has the

# NEWS file-id (so that merges of new work will tend to always land new NEWS

# entries in the latest series).

import os.path

import re

import sys

from optparse import OptionParser

preamble_plain = """\

####################

Breezy Release Notes

####################

.. contents:: List of Releases

   :depth: 2

"""

preamble_sphinx = """\

####################

Breezy Release Notes

####################

.. toctree::

   :maxdepth: 2

"""

def natural_sort_key(file_name):

    """Split 'aaa-N.MMbbb' into ('aaa-', N, '.' MM, 'bbb')

    e.g. 1.10b1 will sort as greater than 1.2::

        >>> natural_sort_key('brz-1.10b1.txt') > natural_sort_key('brz-1.2.txt')

        True

    """

    file_name = os.path.basename(file_name)

    parts = re.findall(r'(?:[0-9]+|[^0-9]+)', file_name)

    result = []

    for part in parts:

        if re.match('^[0-9]+$', part) is not None:

            part = int(part)

        result.append(part)

    return tuple(result)

def output_news_file_sphinx(out_file, news_file_name):

    news_file_name = os.path.basename(news_file_name)

    if not news_file_name.endswith('.txt'):

        raise AssertionError(

            'NEWS file %s does not have .txt extension.'

            % (news_file_name,))

    doc_name = news_file_name[:-4]

    link_text = doc_name.replace('-', ' ')

    out_file.write('   %s <%s>\n' % (link_text, doc_name))

def output_news_file_plain(out_file, news_file_name):

    with open(news_file_name, 'r') as f:

        lines = f.readlines()

    title = os.path.basename(news_file_name)[len('brz-'):-len('.txt')]

    for line in lines:

        if line == '####################\n':

            line = '#' * len(title) + '\n'

        elif line == 'Breezy Release Notes\n':

            line = title + '\n'

        elif line == '.. toctree::\n':

            continue

        elif line == '   :maxdepth: 1\n':

            continue

        out_file.write(line)

    out_file.write('\n\n')

def main(argv):

    # Check usage

    parser = OptionParser(usage="%prog OUTPUT_FILE NEWS_FILE [NEWS_FILE ...]")

    (options, args) = parser.parse_args(argv)

    if len(args) < 2:

        parser.print_help()

        sys.exit(1)

    # Open the files and do the work

    out_file_name = args[0]

    news_file_names = sorted(args[1:], key=natural_sort_key, reverse=True)

    if os.path.basename(out_file_name) == 'index.txt':

        preamble = preamble_sphinx

        output_news_file = output_news_file_sphinx

    else:

        preamble = preamble_plain

        output_news_file = output_news_file_plain

    with open(out_file_name, 'w') as out_file:

        out_file.write(preamble)

        for news_file_name in news_file_names:

            output_news_file(out_file, news_file_name)

if __name__ == '__main__':

    main(sys.argv[1:])