siglican/writer.py
2014-09-29 14:12:00 -05:00

118 lines
No EOL
5 KiB
Python

# -*- coding:utf-8 -*-
# Copyright (c) 2009-2014 - Simon Conseil
# Copyright (c) 2013 - Christophe-Marie Duquesne
# 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.
# Copyright (c) 2014 - Scott Boone
# This is a copy of Sigal's Writer module with minor changes to the names of
# settings keys for siglican.
from __future__ import absolute_import
import codecs
import jinja2
import logging
import os
import sys
from distutils.dir_util import copy_tree
from jinja2 import Environment, FileSystemLoader, ChoiceLoader, PrefixLoader
from jinja2.exceptions import TemplateNotFound
from .pkgmeta import __url__ as sigal_link
from .utils import url_from_path
class Writer(object):
"""Generate html pages for each directory of images."""
def __init__(self, settings, theme=None, index_title=''):
self.settings = settings
self.output_dir = settings['SIGAL_DESTINATION']
self.index_title = index_title
self.logger = logging.getLogger(__name__)
# check for a custom theme in ./sigal/themes, if not found, look for a
# default in the sigal_theme/themes plugin directory
self.theme = settings['SIGAL_THEME']
default_themes = os.path.normpath(os.path.join(
os.path.abspath(os.path.dirname(__file__)), 'themes'))
self.logger.debug("siglican: custom theme: %s", self.theme)
self.logger.debug("siglican: default themedir: %s", default_themes)
if not os.path.exists(self.theme):
self.theme = os.path.join(default_themes, os.path.basename(self.theme))
if not os.path.exists(self.theme):
raise Exception("siglican: unable to find theme: %s" %
os.path.basename(self.theme))
self.logger.info("siglican theme: %s", self.theme)
# pelican theme path merged with siglican theme path
theme_paths = [ os.path.join(self.theme, 'templates'),
os.path.join(self.settings['THEME'], 'templates') ]
# setup jinja env
env_options = {'trim_blocks': True}
try:
if tuple(int(x) for x in jinja2.__version__.split('.')) >= (2, 7):
env_options['lstrip_blocks'] = True
except ValueError:
pass
### note: removed the default loader since sigal default templates
### were only used for google analytics, which have been
### removed from the siglican plugin port
env = Environment(loader=FileSystemLoader(theme_paths),
**env_options)
try:
self.template = env.get_template('album.html')
except TemplateNotFound:
self.logger.error('siglican: template album.html not found')
sys.exit(1)
# Copy the theme files in the output dir
self.theme_path = os.path.join(self.output_dir, 'static')
copy_tree(os.path.join(self.theme, 'static'), self.theme_path)
def generate_context(self, album):
"""Generate the context dict for the given path."""
albumdict = {
'SIGAL_ALBUM': album,
'SIGAL_INDEX_TITLE': self.index_title,
'SIGAL_LINK': sigal_link,
'SIGAL_THEME_NAME': os.path.basename(self.theme),
'SIGAL_THEME_URL': url_from_path(
os.path.relpath(self.theme_path,
album.dst_path))
}
albumdict.update(self.settings)
return albumdict
def write(self, album):
"""Generate the HTML page and save it."""
page = self.template.render(**self.generate_context(album))
output_file = os.path.join(album.dst_path, album.output_file)
self.logger.debug("siglican: write output_file: %s",output_file)
with codecs.open(output_file, 'w', 'utf-8') as f:
f.write(page)