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#!/usr/bin/python -S
#
# Copyright 2009 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
#
# Generates documentation of mapping from remote bug tracker statuses
# to local, Launchpad statuses. Typically, this should be used to
# update the online documentation each time the status mappings are
# updated.
#
# See https://help.launchpad.net/BugStatuses
#
# XXX: GavinPanella 2008-12-03 bug=235434: This script is a temporary
# measure before moving the documentation of external bug status
# mapping tables into Launchpad proper. It is not tested and will
# remain so because it would be a mostly wasted effort. The impact of
# this is very low because it is infrequently run, and typically only
# by me, so I get to pick up the pieces.
import _pythonpath
import codecs
import sys
from datetime import datetime
from itertools import chain
from optparse import OptionParser
from canonical.launchpad.components.externalbugtracker import (
BUG_TRACKER_CLASSES)
def generate_blank_lines(num):
"""Generate `num` blank lines."""
for i in range(num):
yield ''
def generate_page_header():
"""Generate the header for the page."""
yield '<<Anchor(StatusTables)>>'
yield '== Status mapping tables =='
yield ''
yield 'Last generated: %s.' % (
datetime.utcnow().strftime('%Y-%m-%d %H:%M UTC'),)
def generate_table_header(typ):
"""Generate a header for an individual table.
:param typ: A member of `BugTrackerType`.
"""
yield '<<Anchor(%s)>>' % (typ.name,)
yield '=== %s ===' % (typ.title,)
def generate_table_grid(lookup, titles):
"""Simply return the table grid generated by the lookup tree."""
return lookup.moinmoin_table(titles)
def generate_table(typ, cls):
"""Generate a table documenting the specified external bug tracker.
:param typ: A member of `BugTrackerType`.
:param cls: The `ExternalBugTracker` subclass corresponding to `typ`.
"""
# Get the lookup tree.
lookup = cls._status_lookup
# Find or fabricate titles.
titles = getattr(cls, '_status_lookup_titles', None)
if titles is None:
titles = ['Key %d' % (i + 1) for i in range(lookup.max_depth)]
else:
titles = list(titles)
titles.append('Launchpad status')
# Format the table.
return chain(
generate_table_header(typ),
generate_blank_lines(1),
generate_table_grid(lookup, titles))
def generate_documentable_classes():
"""Yield each class that has a mapping table defined."""
for typ, cls in BUG_TRACKER_CLASSES.iteritems():
if getattr(cls, '_status_lookup', None) is not None:
yield typ, cls
def generate_tables():
"""Generate all the tables."""
documentable_classes = sorted(
generate_documentable_classes(),
key=(lambda (typ, cls): typ.title))
return chain(
*(chain(generate_table(typ, cls),
generate_blank_lines(2))
for (typ, cls) in documentable_classes))
def generate_page():
"""Generate the MoinMoin-style page."""
return chain(
generate_page_header(),
generate_blank_lines(2),
generate_tables())
def write_page(outfile):
"""Write the page lines to `outfile`.
:param outfile: A `file`-like object.
"""
# By default, encode using UTF-8.
write = codecs.getwriter('UTF-8')(outfile).write
for line in generate_page():
write(line)
write('\n')
def get_option_parser():
"""Return the option parser for this program."""
usage = "Usage: %prog [options]"
parser = OptionParser(
usage=usage, description=(
"Generates MoinMoin-style tables to document the mapping of "
"remote bug statuses to Launchpad statuses."))
parser.add_option(
"-o", "--file-out", dest="outfile", default='-', help=(
"write data to OUTFILE"))
return parser
def main(args):
parser = get_option_parser()
(options, args) = parser.parse_args(args)
if len(args) > 0:
parser.error("Incorrect number of arguments.")
if options.outfile == '-':
outfile = sys.stdout
else:
outfile = open(options.outfile, 'wb')
write_page(outfile)
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))
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