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			77 lines
		
	
	
		
			3.0 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			77 lines
		
	
	
		
			3.0 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
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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 tempfile import mkdtemp, SpooledTemporaryFile
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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_URL = 'https://github.com/kovidgoyal/MathJax/archive/master.zip'
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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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        filename = urlretrieve(url)[0]
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        with ZipFile(filename) as zf:
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            zf.extractall(tdir)
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            return os.path.join(tdir, 'MathJax-master')
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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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        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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        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(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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        from lzma.xz import compress
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        self.h = sha1()
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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('Compressing MathJax...')
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            t = SpooledTemporaryFile()
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            with ZipFile(t, 'w', ZIP_STORED) as zf:
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                self.add_file(zf, self.j(src, 'unpacked', 'MathJax.js'), 'MathJax.js')
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                self.add_tree(zf, 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(zf, self.j(src, 'unpacked', *d.split('/')), d)
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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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        finally:
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            shutil.rmtree(tdir)
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