gryf/ebook-converter
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Use the real constants module.

Browse Source 
This is progressing refactor of the calibre code to make it more
readable, and transform it to something more coherent.

In this patch, there are changes regarding imports for some modules,
instead of polluting namespace of each module with some other modules
symbols, which often were imported from other modules. Yuck.
This commit is contained in:
gryf
2020-05-29 17:04:53 +02:00
parent ee4801228f
commit ce89f5c9d1
54 changed files with 2383 additions and 2081 deletions
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50
ebook_converter/ebooks/oeb/transforms/metadata.py
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@@ -1,15 +1,12 @@
import os, re
import os
import re
from ebook_converter.ebooks.oeb import base
from ebook_converter.utils.date import isoformat, now
from ebook_converter import guess_type
__license__ = 'GPL v3'
__copyright__ = '2009, Kovid Goyal <kovid@kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
def meta_info_to_oeb_metadata(mi, m, log, override_input_metadata=False):
from ebook_converter.ebooks.oeb.base import OPF
if not mi.is_null('title'):
m.clear('title')
m.add('title', mi.title)
@@ -19,17 +16,17 @@ def meta_info_to_oeb_metadata(mi, m, log, override_input_metadata=False):
m.clear('title_sort')
m.add('title_sort', mi.title_sort)
if not mi.is_null('authors'):
m.filter('creator', lambda x : x.role.lower() in ['aut', ''])
m.filter('creator', lambda x: x.role.lower() in ['aut', ''])
for a in mi.authors:
attrib = {'role':'aut'}
attrib = {'role': 'aut'}
if mi.author_sort:
attrib[OPF('file-as')] = mi.author_sort
attrib[base.tag('opf', 'file-as')] = mi.author_sort
m.add('creator', a, attrib=attrib)
if not mi.is_null('book_producer'):
m.filter('contributor', lambda x : x.role.lower() == 'bkp')
m.filter('contributor', lambda x: x.role.lower() == 'bkp')
m.add('contributor', mi.book_producer, role='bkp')
elif override_input_metadata:
m.filter('contributor', lambda x : x.role.lower() == 'bkp')
m.filter('contributor', lambda x: x.role.lower() == 'bkp')
if not mi.is_null('comments'):
m.clear('description')
m.add('description', mi.comments)
@@ -71,7 +68,7 @@ def meta_info_to_oeb_metadata(mi, m, log, override_input_metadata=False):
m.clear('series_index')
if not mi.is_null('rating'):
m.clear('rating')
m.add('rating', '%.2f'%mi.rating)
m.add('rating', '%.2f' % mi.rating)
elif override_input_metadata:
m.clear('rating')
if not mi.is_null('tags'):
@@ -101,23 +98,25 @@ class MergeMetadata(object):
'Merge in user metadata, including cover'
def __call__(self, oeb, mi, opts, override_input_metadata=False):
_oim = override_input_metadata
self.oeb, self.log = oeb, oeb.log
m = self.oeb.metadata
self.log('Merging user specified metadata...')
meta_info_to_oeb_metadata(mi, m, oeb.log,
override_input_metadata=override_input_metadata)
override_input_metadata=_oim)
cover_id = self.set_cover(mi, opts.prefer_metadata_cover)
m.clear('cover')
if cover_id is not None:
m.add('cover', cover_id)
if mi.uuid is not None:
m.filter('identifier', lambda x:x.id=='uuid_id')
m.filter('identifier', lambda x: x.id == 'uuid_id')
self.oeb.metadata.add('identifier', mi.uuid, id='uuid_id',
scheme='uuid')
self.oeb.uid = self.oeb.metadata.identifier[-1]
if mi.application_id is not None:
m.filter('identifier', lambda x:x.scheme=='calibre')
self.oeb.metadata.add('identifier', mi.application_id, scheme='calibre')
m.filter('identifier', lambda x: x.scheme == 'calibre')
self.oeb.metadata.add('identifier', mi.application_id,
scheme='calibre')
def set_cover(self, mi, prefer_metadata_cover):
cdata, ext = b'', 'jpg'
@@ -138,7 +137,8 @@ class MergeMetadata(object):
if cdata:
self.oeb.guide.remove('cover')
self.oeb.guide.remove('titlepage')
elif self.oeb.plumber_output_format in {'mobi', 'azw3'} and old_cover is not None:
elif (self.oeb.plumber_output_format in {'mobi', 'azw3'} and
old_cover is not None):
# The amazon formats dont support html cover pages, so remove them
# even if no cover was specified.
self.oeb.guide.remove('titlepage')
@@ -156,7 +156,9 @@ class MergeMetadata(object):
new_cover_item = None
if cdata:
id, href = self.oeb.manifest.generate('cover', 'cover.'+ext)
new_cover_item = self.oeb.manifest.add(id, href, guess_type('cover.'+ext)[0], data=cdata)
new_cover_item = self.oeb.manifest.add(id, href,
guess_type('cover.'+ext)[0],
data=cdata)
self.oeb.guide.add('cover', 'Cover', href)
if do_remove_old_cover:
self.remove_old_cover(item, new_cover_item.href)
@@ -186,7 +188,8 @@ class MergeMetadata(object):
if href == cover_item.href:
if new_cover_href is not None:
replacement_href = item.relhref(new_cover_href)
attr = 'src' if img.tag.endswith('img') else XLINK('href')
attr = ('src' if img.tag.endswith('img')
else XLINK('href'))
img.set(attr, replacement_href)
else:
p = img.getparent()
@@ -202,13 +205,14 @@ class MergeMetadata(object):
for item in affected_items:
body = XPath('//h:body')(item.data)
if body:
text = etree.tostring(body[0], method='text', encoding='unicode')
text = etree.tostring(body[0], method='text',
encoding='unicode')
else:
text = ''
text = re.sub(r'\s+', '', text)
if not text and not XPath('//h:img|//svg:svg')(item.data):
self.log('Removing %s as it is a wrapper around'
' the cover image'%item.href)
self.log('Removing %s as it is a wrapper around the cover '
'image' % item.href)
self.oeb.spine.remove(item)
self.oeb.manifest.remove(item)
self.oeb.guide.remove_by_href(item.href)