mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-06-23 15:30:45 -04:00
f78a7dad58
Improves performance for local clients such as PDF output and the viewer. Since we have now removed the old unbundled mathjax, the file count in the resources directory does not go up too much.
78 lines
3.1 KiB
Python
78 lines
3.1 KiB
Python
#!/usr/bin/env python2
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# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:fdm=marker:ai
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from __future__ import (unicode_literals, division, absolute_import,
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print_function)
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__license__ = 'GPL v3'
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__copyright__ = '2012, Kovid Goyal <kovid at kovidgoyal.net>'
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__docformat__ = 'restructuredtext en'
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import os, shutil, json
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from io import BytesIO
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from zipfile import ZipFile, ZIP_STORED, ZipInfo
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from hashlib import sha1
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from tempfile import mkdtemp, SpooledTemporaryFile
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is_ci = os.environ.get('CI', '').lower() == 'true'
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from setup import Command, download_securely
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class MathJax(Command):
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description = 'Create the MathJax bundle'
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MATH_JAX_VERSION = '2.7.5'
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MATH_JAX_URL = 'https://github.com/mathjax/MathJax/archive/%s.zip' % MATH_JAX_VERSION
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FONT_FAMILY = 'TeX'
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def add_options(self, parser):
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parser.add_option('--path-to-mathjax', help='Path to the MathJax source code')
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parser.add_option('--mathjax-url', default=self.MATH_JAX_URL, help='URL to MathJax source archive in zip format')
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def download_mathjax_release(self, tdir, url):
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self.info('Downloading MathJax:', url)
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raw = download_securely(url)
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with ZipFile(BytesIO(raw)) as zf:
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zf.extractall(tdir)
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return os.path.join(tdir, 'MathJax-' + self.MATH_JAX_VERSION)
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def add_file(self, path, name):
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with open(path, 'rb') as f:
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raw = f.read()
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self.h.update(raw)
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self.mathjax_files[name] = len(raw)
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dest = self.j(self.mathjax_dir, *name.split('/'))
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base = os.path.dirname(dest)
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if not os.path.exists(base):
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os.makedirs(base)
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with open(dest, 'wb') as f:
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f.write(raw)
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def add_tree(self, base, prefix):
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for dirpath, dirnames, filenames in os.walk(base):
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for fname in filenames:
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f = os.path.join(dirpath, fname)
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name = prefix + '/' + os.path.relpath(f, base).replace(os.sep, '/')
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self.add_file(f, name)
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def run(self, opts):
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self.h = sha1()
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self.mathjax_dir = self.j(self.RESOURCES, 'mathjax')
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self.mathjax_files = {}
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if os.path.exists(self.mathjax_dir):
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shutil.rmtree(self.mathjax_dir)
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os.mkdir(self.mathjax_dir)
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tdir = mkdtemp('calibre-mathjax-build')
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try:
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src = opts.path_to_mathjax or self.download_mathjax_release(tdir, opts.mathjax_url)
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self.info('Adding MathJax...')
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self.add_file(self.j(src, 'unpacked', 'MathJax.js'), 'MathJax.js')
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self.add_tree(self.j(src, 'fonts', 'HTML-CSS', self.FONT_FAMILY, 'woff'), 'fonts/HTML-CSS/%s/woff' % self.FONT_FAMILY)
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for d in 'extensions jax/element jax/input jax/output/CommonHTML'.split():
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self.add_tree(self.j(src, 'unpacked', *d.split('/')), d)
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etag = self.h.hexdigest()
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with open(self.j(self.RESOURCES, 'mathjax', 'manifest.json'), 'wb') as f:
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f.write(json.dumps({'etag': etag, 'files': self.mathjax_files}, indent=2).encode('utf-8'))
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finally:
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shutil.rmtree(tdir)
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