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"""
Include JavaScript and CSS files for Pelican
============================================
This plugin allows you to easily embed JS and CSS in the header of individual
articles.
"""
import os
import shutil
from pelican import signals
def copy_resources(src, dest, file_list):
"""
Copy files from content folder to output folder
Parameters
----------
src: string
Content folder path
dest: string,
Output folder path
file_list: list
List of files to be transferred
Output
------
Copies files from content to output
"""
if not os.path.exists(dest):
os.makedirs(dest)
for file_ in file_list:
file_src = os.path.join(src, file_)
shutil.copy2(file_src, dest)
def add_files(gen, metadata):
"""
The registered handler for the dynamic resources plugin. It will
add the javascripts and/or stylesheets to the article
"""
site_url = gen.settings['SITEURL']
formatters = {
'styles': '<link rel="stylesheet" href="{0}" type="text/css" />',
'js': '<script src="{0}"></script>'
}
dirnames = {'styles': 'css',
'js': 'js'}
for key in ['styles', 'js']:
if key in metadata:
files = metadata[key].replace(" ", "").split(",")
htmls = []
for f in files:
if f.startswith('http://') or f.startswith('https://'):
link = f
else:
if gen.settings['RELATIVE_URLS']:
link = "%s/%s/%s" % ('..', dirnames[key], f)
else:
link = "%s/%s/%s" % (site_url, dirnames[key], f)
html = formatters[key].format(link)
htmls.append(html)
metadata[key] = htmls
def move_resources(gen):
"""
Move files from js/css folders to output folder
"""
js_files = gen.get_files('js', extensions='js')
css_files = gen.get_files('css', extensions='css')
js_dest = os.path.join(gen.output_path, 'js')
copy_resources(gen.path, js_dest, js_files)
css_dest = os.path.join(gen.output_path, 'css')
copy_resources(gen.path, css_dest, css_files)
def register():
"""
Plugin registration
"""
signals.article_generator_context.connect(add_files)
signals.page_generator_context.connect(add_files)
signals.article_generator_finalized.connect(move_resources)
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