mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-11-04 03:27:00 -05:00
104 lines
4.0 KiB
Python
104 lines
4.0 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
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from hashlib import sha1
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from tempfile import mkdtemp
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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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parser.add_option('--system-mathjax', default=False, action='store_true',
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help='Treat MathJax as system copy and symlink instead of copy')
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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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if self.use_symlinks:
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os.symlink(path, dest)
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else:
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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, ignore=lambda n:False):
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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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if not ignore(name):
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self.add_file(f, name)
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@property
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def mathjax_dir(self):
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return self.j(self.RESOURCES, 'mathjax')
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def already_present(self):
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manifest = self.j(self.mathjax_dir, 'manifest.json')
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if os.path.exists(manifest):
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with open(manifest, 'rb') as f:
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return json.load(f).get('version') == self.MATH_JAX_VERSION
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return False
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def clean(self):
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if os.path.exists(self.mathjax_dir):
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shutil.rmtree(self.mathjax_dir)
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def run(self, opts):
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if not opts.system_mathjax and self.already_present():
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self.info('MathJax already present in the resources directory, not downloading')
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return
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self.use_symlinks = opts.system_mathjax
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self.h = sha1()
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self.mathjax_files = {}
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self.clean()
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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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unpacked = 'unpacked' if self.e(self.j(src, 'unpacked')) else ''
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self.add_file(self.j(src, unpacked, 'MathJax.js'), 'MathJax.js')
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self.add_tree(
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self.j(src, 'fonts', 'HTML-CSS', self.FONT_FAMILY, 'woff'),
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'fonts/HTML-CSS/%s/woff' % self.FONT_FAMILY,
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lambda x: not x.endswith('.woff'))
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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, 'version': self.MATH_JAX_VERSION}, indent=2).encode('utf-8'))
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finally:
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shutil.rmtree(tdir)
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