gryf/ebook-converter
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Convert calibre modules to ebook_converter.

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Here is the first batch of modules, which are needed for converting
several formats to LRF. Some of the logic has been change, more cleanups
will follow.
This commit is contained in:
gryf
2020-04-11 19:33:43 +02:00
parent 69d2e536c5
commit 0f9792df36
252 changed files with 1925 additions and 2344 deletions
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50
ebook_converter/ebooks/conversion/plugins/epub_output.py
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@@ -8,11 +8,11 @@ __docformat__ = 'restructuredtext en'
import os, shutil, re
from calibre.customize.conversion import (OutputFormatPlugin,
from ebook_converter.customize.conversion import (OutputFormatPlugin,
OptionRecommendation)
from calibre.ptempfile import TemporaryDirectory
from calibre import CurrentDir
from polyglot.builtins import unicode_type, filter, map, zip, range, as_bytes
from ebook_converter.ptempfile import TemporaryDirectory
from ebook_converter import CurrentDir
from ebook_converter.polyglot.builtins import unicode_type, filter, map, zip, range, as_bytes
block_level_tags = (
'address',
@@ -130,7 +130,7 @@ class EPUBOutput(OutputFormatPlugin):
recommendations = {('pretty_print', True, OptionRecommendation.HIGH)}
def workaround_webkit_quirks(self): # {{{
from calibre.ebooks.oeb.base import XPath
from ebook_converter.ebooks.oeb.base import XPath
for x in self.oeb.spine:
root = x.data
body = XPath('//h:body')(root)
@@ -147,7 +147,7 @@ class EPUBOutput(OutputFormatPlugin):
def upshift_markup(self): # {{{
'Upgrade markup to comply with XHTML 1.1 where possible'
from calibre.ebooks.oeb.base import XPath, XML
from ebook_converter.ebooks.oeb.base import XPath, XML
for x in self.oeb.spine:
root = x.data
if (not root.get(XML('lang'))) and (root.get('lang')):
@@ -181,32 +181,32 @@ class EPUBOutput(OutputFormatPlugin):
self.log, self.opts, self.oeb = log, opts, oeb
if self.opts.epub_inline_toc:
from calibre.ebooks.mobi.writer8.toc import TOCAdder
from ebook_converter.ebooks.mobi.writer8.toc import TOCAdder
opts.mobi_toc_at_start = not opts.epub_toc_at_end
opts.mobi_passthrough = False
opts.no_inline_toc = False
TOCAdder(oeb, opts, replace_previous_inline_toc=True, ignore_existing_toc=True)
if self.opts.epub_flatten:
from calibre.ebooks.oeb.transforms.filenames import FlatFilenames
from ebook_converter.ebooks.oeb.transforms.filenames import FlatFilenames
FlatFilenames()(oeb, opts)
else:
from calibre.ebooks.oeb.transforms.filenames import UniqueFilenames
from ebook_converter.ebooks.oeb.transforms.filenames import UniqueFilenames
UniqueFilenames()(oeb, opts)
self.workaround_ade_quirks()
self.workaround_webkit_quirks()
self.upshift_markup()
from calibre.ebooks.oeb.transforms.rescale import RescaleImages
from ebook_converter.ebooks.oeb.transforms.rescale import RescaleImages
RescaleImages(check_colorspaces=True)(oeb, opts)
from calibre.ebooks.oeb.transforms.split import Split
from ebook_converter.ebooks.oeb.transforms.split import Split
split = Split(not self.opts.dont_split_on_page_breaks,
max_flow_size=self.opts.flow_size*1024
)
split(self.oeb, self.opts)
from calibre.ebooks.oeb.transforms.cover import CoverManager
from ebook_converter.ebooks.oeb.transforms.cover import CoverManager
cm = CoverManager(
no_default_cover=self.opts.no_default_epub_cover,
no_svg_cover=self.opts.no_svg_cover,
@@ -221,7 +221,7 @@ class EPUBOutput(OutputFormatPlugin):
first = next(iter(self.oeb.spine))
self.oeb.toc.add(_('Start'), first.href)
from calibre.ebooks.oeb.base import OPF
from ebook_converter.ebooks.oeb.base import OPF
identifiers = oeb.metadata['identifier']
uuid = None
for x in identifiers:
@@ -245,12 +245,12 @@ class EPUBOutput(OutputFormatPlugin):
x.content = 'urn:uuid:'+uuid
with TemporaryDirectory('_epub_output') as tdir:
from calibre.customize.ui import plugin_for_output_format
from ebook_converter.customize.ui import plugin_for_output_format
metadata_xml = None
extra_entries = []
if self.is_periodical:
if self.opts.output_profile.epub_periodical_format == 'sony':
from calibre.ebooks.epub.periodical import sony_metadata
from ebook_converter.ebooks.epub.periodical import sony_metadata
metadata_xml, atom_xml = sony_metadata(oeb)
extra_entries = [('atom.xml', 'application/atom+xml', atom_xml)]
oeb_output = plugin_for_output_format('oeb')
@@ -264,7 +264,7 @@ class EPUBOutput(OutputFormatPlugin):
if encrypted_fonts:
encryption = self.encrypt_fonts(encrypted_fonts, tdir, uuid)
from calibre.ebooks.epub import initialize_container
from ebook_converter.ebooks.epub import initialize_container
with initialize_container(output_path, os.path.basename(opf),
extra_entries=extra_entries) as epub:
epub.add_dir(tdir)
@@ -274,7 +274,7 @@ class EPUBOutput(OutputFormatPlugin):
epub.writestr('META-INF/metadata.xml',
metadata_xml.encode('utf-8'))
if opts.extract_to is not None:
from calibre.utils.zipfile import ZipFile
from ebook_converter.utils.zipfile import ZipFile
if os.path.exists(opts.extract_to):
if os.path.isdir(opts.extract_to):
shutil.rmtree(opts.extract_to)
@@ -287,17 +287,17 @@ class EPUBOutput(OutputFormatPlugin):
def upgrade_to_epub3(self, tdir, opf):
self.log.info('Upgrading to EPUB 3...')
from calibre.ebooks.epub import simple_container_xml
from calibre.ebooks.oeb.polish.cover import fix_conversion_titlepage_links_in_nav
from ebook_converter.ebooks.epub import simple_container_xml
from ebook_converter.ebooks.oeb.polish.cover import fix_conversion_titlepage_links_in_nav
try:
os.mkdir(os.path.join(tdir, 'META-INF'))
except EnvironmentError:
pass
with open(os.path.join(tdir, 'META-INF', 'container.xml'), 'wb') as f:
f.write(simple_container_xml(os.path.basename(opf)).encode('utf-8'))
from calibre.ebooks.oeb.polish.container import EpubContainer
from ebook_converter.ebooks.oeb.polish.container import EpubContainer
container = EpubContainer(tdir, self.log)
from calibre.ebooks.oeb.polish.upgrade import epub_2_to_3
from ebook_converter.ebooks.oeb.polish.upgrade import epub_2_to_3
existing_nav = getattr(self.opts, 'epub3_nav_parsed', None)
nav_href = getattr(self.opts, 'epub3_nav_href', None)
previous_nav = (nav_href, existing_nav) if existing_nav and nav_href else None
@@ -311,7 +311,7 @@ class EPUBOutput(OutputFormatPlugin):
pass
def encrypt_fonts(self, uris, tdir, uuid): # {{{
from polyglot.binary import from_hex_bytes
from ebook_converter.polyglot.binary import from_hex_bytes
key = re.sub(r'[^a-fA-F0-9]', '', uuid)
if len(key) < 16:
@@ -376,7 +376,7 @@ class EPUBOutput(OutputFormatPlugin):
Perform various markup transforms to get the output to render correctly
in the quirky ADE.
'''
from calibre.ebooks.oeb.base import XPath, XHTML, barename, urlunquote
from ebook_converter.ebooks.oeb.base import XPath, XHTML, barename, urlunquote
stylesheet = self.oeb.manifest.main_stylesheet
@@ -517,8 +517,8 @@ class EPUBOutput(OutputFormatPlugin):
'''
Perform toc link transforms to alleviate slow loading.
'''
from calibre.ebooks.oeb.base import urldefrag, XPath
from calibre.ebooks.oeb.polish.toc import item_at_top
from ebook_converter.ebooks.oeb.base import urldefrag, XPath
from ebook_converter.ebooks.oeb.polish.toc import item_at_top
def frag_is_at_top(root, frag):
elem = XPath('//*[@id="%s" or @name="%s"]'%(frag, frag))(root)