mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-06-02 13:14:50 -04:00
87 lines
3.4 KiB
Python
87 lines
3.4 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
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from urllib import urlretrieve
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from zipfile import ZipFile, ZIP_STORED, ZipInfo
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from hashlib import sha1
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from lzma.xz import compress
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from setup import Command
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class MathJax(Command):
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description = 'Create the MathJax bundle'
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MATH_JAX_VERSION = '2.6.1'
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MATH_JAX_URL = 'https://github.com/mathjax/MathJax/archive/%s.zip' % MATH_JAX_VERSION
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FONT_FAMILY = 'STIX-Web'
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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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def download_mathjax_release(self):
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from calibre.ptempfile import TemporaryDirectory
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self.info('Downloading MathJax:', self.MATH_JAX_URL)
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filename = urlretrieve(self.MATH_JAX_URL)[0]
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with ZipFile(filename) as zf, TemporaryDirectory() as tdir:
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zf.extractall(tdir)
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for d in os.listdir(tdir):
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q = os.path.join(tdir, d)
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if os.path.isdir(q):
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return q
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def patch_jax(self, raw):
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self.info('Patching HTML-CSS jax web font loader...')
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nraw = raw.replace(b'dir+"/"+fullname', b'AJAX.fileURL(dir+"/"+fullname)')
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if nraw == raw:
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raise SystemExit('Failed to path the HTML-CSS jax font loading code')
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return nraw
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def add_file(self, zf, path, name):
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with open(path, 'rb') as f:
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raw = f.read()
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if name == 'jax/output/HTML-CSS/jax.js':
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raw = self.patch_jax(raw)
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self.h.update(raw)
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zi = ZipInfo(name)
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zi.external_attr = 0o444 << 16L
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zf.writestr(zi, raw)
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def add_tree(self, zf, base, prefix, ignore=lambda n:False):
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from calibre import walk
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for f in walk(base):
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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(zf, f, name)
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def ignore_fonts(self, name):
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return '/fonts/' in name and self.FONT_FAMILY not in name
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def run(self, opts):
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self.h = sha1()
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src = opts.path_to_mathjax or self.download_mathjax_release()
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self.info('Compressing MathJax...')
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from calibre.ptempfile import SpooledTemporaryFile
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t = SpooledTemporaryFile()
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with ZipFile(t, 'w', ZIP_STORED) as zf:
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self.add_tree(zf, self.j(src, 'fonts', 'HTML-CSS', self.FONT_FAMILY, 'woff'), 'fonts/HTML-CSS/STIX-Web/woff')
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self.add_tree(zf, self.j(src, 'unpacked', 'extensions'), 'extensions')
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self.add_tree(zf, self.j(src, 'unpacked', 'jax', 'element'), 'jax/element')
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self.add_tree(zf, self.j(src, 'unpacked', 'jax', 'input'), 'jax/input')
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self.add_tree(zf, self.j(src, 'unpacked', 'jax', 'output', 'HTML-CSS'), 'jax/output/HTML-CSS', ignore=self.ignore_fonts)
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self.add_file(zf, self.j(src, 'unpacked', 'MathJax.js'), 'MathJax.js')
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zf.comment = self.h.hexdigest()
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t.seek(0)
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with open(self.j(self.RESOURCES, 'content-server', 'mathjax.zip.xz'), 'wb') as f:
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compress(t, f, level=9)
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with open(self.j(self.RESOURCES, 'content-server', 'mathjax.version'), 'wb') as f:
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f.write(zf.comment)
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