103 lines
2.8 KiB
Python
103 lines
2.8 KiB
Python
#!/usr/bin/env python3
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# pelican-css: embed custom CSS easily
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# Copyright (C) 2017 Jorge Maldonado Ventura
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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Embed CSS files for Pelican
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===========================
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This plugin allows you to easily embed CSS files in the header of individual
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articles. The CSS files are embedded using the HTML <link> tag inside the
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<head> tag.
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"""
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import os
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import shutil
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from pelican import signals
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def format_css(gen, metastring, formatter):
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"""
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Create a list of URL-formatted script/style tags
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Parameters
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----------
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gen: generator
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Pelican Generator
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metastring: string
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metadata['scripts'] or metadata['styles']
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formatter: string
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String format for output.
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Output
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------
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List of formatted strings
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"""
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metalist = metastring.replace(' ', '').split(',')
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if gen.settings['RELATIVE_URLS']:
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site_url = '..'
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else:
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site_url = gen.settings['SITEURL']
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return [formatter.format(site_url, x) for x in metalist]
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def copy_resources(src, dest, file_list):
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"""
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Copy files from content folder to output folder
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Parameters
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----------
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src: string
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Content folder path
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dest: string,
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Output folder path
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file_list: list
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List of files to be transferred
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Output
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------
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Copies files from content to output
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"""
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if not os.path.exists(dest):
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os.makedirs(dest)
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for file_ in file_list:
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file_src = os.path.join(src, file_)
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shutil.copy2(file_src, dest)
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def add_tags(gen, metadata):
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"""
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It will add the CSS to the article
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"""
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if 'css' in metadata.keys():
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style = '<link rel="stylesheet" href="{0}/css/{1}" type="text/css">'
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metadata['styles'] = format_css(gen, metadata['css'], style)
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def move_resources(gen):
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"""
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Move CSS files from css folder to output folder
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"""
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css_files = gen.get_files('css', extensions='css')
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css_dest = os.path.join(gen.output_path, 'css')
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copy_resources(gen.path, css_dest, css_files)
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def register():
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"""
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Plugin registration
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"""
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signals.article_generator_context.connect(add_tags)
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signals.page_generator_context.connect(add_tags)
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signals.article_generator_finalized.connect(move_resources)
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