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#
# This file is part of m.css.
#
# Copyright © 2017, 2018 Vladimír Vondruš <mosra@centrum.cz>
#
# Loosely based on https://github.com/Nitron/pelican-alias,
# copyright © 2013 Christopher Williams
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#
import os
import logging
from pelican import signals
from m.htmlsanity import format_siteurl
logger = logging.getLogger(__name__)
class AliasGenerator:
def __init__(self, context, settings, path, theme, output_path, *args):
self.output_path = output_path
self.context = context
def generate_output(self, writer):
for page in self.context['pages'] + self.context['articles']:
aliases = page.metadata.get('alias', '').strip()
if not aliases: continue
for alias in aliases.split('\n'):
alias = alias.strip()
# Currently only supporting paths starting with /
if not alias.startswith('/'): assert False
path = os.path.join(self.output_path, alias[1:])
# If path ends with /, write it into index.html
directory, filename = os.path.split(path)
if not filename: filename = 'index.html'
alias_file = os.path.join(directory, filename)
alias_target = format_siteurl(page.url)
logger.info('m.alias: creating alias {} -> {}'.format(alias_file[len(self.output_path):], alias_target))
# Write the redirect file
os.makedirs(directory, exist_ok=True)
with open(alias_file, 'w') as f:
f.write("""<!DOCTYPE html><html><head><meta http-equiv="refresh" content="0;url={}" /></head></html>\n""".format(alias_target))
def get_generators(generators): return AliasGenerator
def register():
# TODO: why `lambda generators: AliasGenerator` doesn't work?
signals.get_generators.connect(get_generators)