def polish(file_map, opts, log, report):
rt = lambda x: report('\n### ' + x)
st = time.time()
for inbook, outbook in file_map.iteritems():
report(_('## Polishing: %s') % (inbook.rpartition('.')[-1].upper()))
ebook = get_container(inbook, log)
jacket = None
if opts.subset:
stats = StatsCollector(ebook)
if opts.opf:
rt(_('Updating metadata'))
update_metadata(ebook, opts.opf)
jacket = find_existing_jacket(ebook)
if jacket is not None:
replace_jacket(ebook, jacket)
report(_('Updated metadata jacket'))
report(_('Metadata updated\n'))
if opts.cover:
rt(_('Setting cover'))
set_cover(ebook, opts.cover, report)
report('')
if opts.jacket:
rt(_('Inserting metadata jacket'))
if jacket is None:
if add_or_replace_jacket(ebook):
report(_('Existing metadata jacket replaced'))
else:
report(_('Metadata jacket inserted'))
else:
report(_('Existing metadata jacket replaced'))
report('')
if opts.remove_jacket:
rt(_('Removing metadata jacket'))
if remove_jacket(ebook):
report(_('Metadata jacket removed'))
else:
report(_('No metadata jacket found'))
report('')
if opts.smarten_punctuation:
rt(_('Smartening punctuation'))
smarten_punctuation(ebook, report)
report('')
if opts.subset:
rt(_('Subsetting embedded fonts'))
subset_all_fonts(ebook, stats.font_stats, report)
report('')
ebook.commit(outbook)
report('-' * 70)
report(_('Polishing took: %.1f seconds') % (time.time() - st))
def polish_one(ebook, opts, report):
rt = lambda x: report('\n### ' + x)
jacket = None
if opts.subset or opts.embed:
stats = StatsCollector(ebook, do_embed=opts.embed)
if opts.opf:
rt(_('Updating metadata'))
update_metadata(ebook, opts.opf)
jacket = find_existing_jacket(ebook)
if jacket is not None:
replace_jacket(ebook, jacket)
report(_('Updated metadata jacket'))
report(_('Metadata updated\n'))
if opts.cover:
rt(_('Setting cover'))
set_cover(ebook, opts.cover, report)
report('')
if opts.jacket:
rt(_('Inserting metadata jacket'))
if jacket is None:
if add_or_replace_jacket(ebook):
report(_('Existing metadata jacket replaced'))
else:
report(_('Metadata jacket inserted'))
else:
report(_('Existing metadata jacket replaced'))
report('')
if opts.remove_jacket:
rt(_('Removing metadata jacket'))
if remove_jacket(ebook):
report(_('Metadata jacket removed'))
else:
report(_('No metadata jacket found'))
report('')
if opts.smarten_punctuation:
rt(_('Smartening punctuation'))
smarten_punctuation(ebook, report)
report('')
if opts.embed:
rt(_('Embedding referenced fonts'))
embed_all_fonts(ebook, stats, report)
report('')
if opts.subset:
rt(_('Subsetting embedded fonts'))
subset_all_fonts(ebook, stats.font_stats, report)
report('')
def get_stats(html, *fonts):
styles = []
html = '<html><head><link href="styles.css"></head><body>{}</body></html>'.format(html)
files = {'index.html':html, 'X.otf':b'xxx', 'XB.otf': b'xbxb'}
for font in fonts:
styles.append('@font-face {')
for k, v in font.iteritems():
if k == 'src':
files[v] = b'xxx'
v = 'url(%s)' % v
styles.append('%s : %s;' % (k, v))
styles.append('}\n')
html = '<html><head><link href="styles.css"></head><body>{}</body></html>'.format(html)
files['styles.css'] = embeds + '\n'.join(styles)
c = VirtualContainer(files)
return StatsCollector(c, do_embed=True)
def polish_one(ebook, opts, report, customization=None):
rt = lambda x: report('\n### ' + x)
jacket = None
changed = False
customization = customization or CUSTOMIZATION.copy()
if opts.subset or opts.embed:
stats = StatsCollector(ebook, do_embed=opts.embed)
if opts.opf:
changed = True
rt(_('Updating metadata'))
update_metadata(ebook, opts.opf)
jacket = find_existing_jacket(ebook)
if jacket is not None:
replace_jacket(ebook, jacket)
report(_('Updated metadata jacket'))
report(_('Metadata updated\n'))
if opts.cover:
changed = True
rt(_('Setting cover'))
set_cover(ebook, opts.cover, report)
report('')
if opts.jacket:
changed = True
rt(_('Inserting metadata jacket'))
if jacket is None:
if add_or_replace_jacket(ebook):
report(_('Existing metadata jacket replaced'))
else:
report(_('Metadata jacket inserted'))
else:
report(_('Existing metadata jacket replaced'))
report('')
if opts.remove_jacket:
rt(_('Removing metadata jacket'))
if remove_jacket(ebook):
report(_('Metadata jacket removed'))
changed = True
else:
report(_('No metadata jacket found'))
report('')
if opts.smarten_punctuation:
rt(_('Smartening punctuation'))
if smarten_punctuation(ebook, report):
changed = True
report('')
if opts.embed:
rt(_('Embedding referenced fonts'))
if embed_all_fonts(ebook, stats, report):
changed = True
report('')
if opts.subset:
rt(_('Subsetting embedded fonts'))
if subset_all_fonts(ebook, stats.font_stats, report):
changed = True
report('')
if opts.remove_unused_css:
rt(_('Removing unused CSS rules'))
if remove_unused_css(
ebook, report, remove_unused_classes=customization['remove_unused_classes'], merge_rules=customization['merge_identical_selectors']):
changed = True
report('')
if opts.compress_images:
rt(_('Losslessly compressing images'))
if compress_images(ebook, report)[0]:
changed = True
report('')
return changed
sheet = container.parse_css(style.text, name)
if remove_font_face_rules(container, sheet, remove, name):
style.text = sheet.cssText
container.dirty(name)
if total_old > 0:
report(_('Reduced total font size to %.1f%% of original')%(
total_new/total_old*100))
else:
report(_('No embedded fonts found'))
return changed
if __name__ == '__main__':
from calibre.ebooks.oeb.polish.container import get_container
from calibre.ebooks.oeb.polish.stats import StatsCollector
from calibre.utils.logging import default_log
default_log.filter_level = default_log.DEBUG
inbook = sys.argv[-1]
ebook = get_container(inbook, default_log)
report = []
stats = StatsCollector(ebook).font_stats
subset_all_fonts(ebook, stats, report.append)
outbook, ext = inbook.rpartition('.')[0::2]
outbook += '_subset.'+ext
ebook.commit(outbook)
prints('\nReport:')
for msg in report:
prints(msg)
print()
prints('Output written to:', outbook)
def polish_one(ebook, opts, report, customization=None):
rt = lambda x: report('\n### ' + x)
jacket = None
changed = False
customization = customization or CUSTOMIZATION.copy()
has_subsettable_fonts = False
for x in iter_subsettable_fonts(ebook):
has_subsettable_fonts = True
break
if (opts.subset and has_subsettable_fonts) or opts.embed:
stats = StatsCollector(ebook, do_embed=opts.embed)
if opts.opf:
changed = True
rt(_('Updating metadata'))
update_metadata(ebook, opts.opf)
jacket = find_existing_jacket(ebook)
if jacket is not None:
replace_jacket(ebook, jacket)
report(_('Updated metadata jacket'))
report(_('Metadata updated\n'))
if opts.cover:
changed = True
rt(_('Setting cover'))
set_cover(ebook, opts.cover, report)
report('')
if opts.jacket:
changed = True
rt(_('Inserting metadata jacket'))
if jacket is None:
if add_or_replace_jacket(ebook):
report(_('Existing metadata jacket replaced'))
else:
report(_('Metadata jacket inserted'))
else:
report(_('Existing metadata jacket replaced'))
report('')
if opts.remove_jacket:
rt(_('Removing metadata jacket'))
if remove_jacket(ebook):
report(_('Metadata jacket removed'))
changed = True
else:
report(_('No metadata jacket found'))
report('')
if opts.smarten_punctuation:
rt(_('Smartening punctuation'))
if smarten_punctuation(ebook, report):
changed = True
report('')
if opts.embed:
rt(_('Embedding referenced fonts'))
if embed_all_fonts(ebook, stats, report):
changed = True
has_subsettable_fonts = True
report('')
if opts.subset:
if has_subsettable_fonts:
rt(_('Subsetting embedded fonts'))
if subset_all_fonts(ebook, stats.font_stats, report):
changed = True
else:
rt(_('No embedded fonts to subset'))
report('')
if opts.remove_unused_css:
rt(_('Removing unused CSS rules'))
if remove_unused_css(
ebook,
report,
remove_unused_classes=customization['remove_unused_classes'],
merge_rules=customization['merge_identical_selectors'],
merge_rules_with_identical_properties=customization[
'merge_rules_with_identical_properties'],
remove_unreferenced_sheets=customization[
'remove_unreferenced_sheets']):
changed = True
report('')
if opts.compress_images:
rt(_('Losslessly compressing images'))
if compress_images(ebook, report)[0]:
changed = True
report('')
if opts.upgrade_book:
rt(_('Upgrading book, if possible'))
if upgrade_book(ebook, report, remove_ncx=customization['remove_ncx']):
changed = True
report('')
if opts.remove_soft_hyphens:
rt(_('Removing soft hyphens'))
remove_soft_hyphens(ebook, report)
changed = True
elif opts.add_soft_hyphens:
rt(_('Adding soft hyphens'))
add_soft_hyphens(ebook, report)
changed = True
return changed
root = container.parsed(spine_name)
head = root.xpath('//*[local-name()="head"][1]')[0]
href = container.name_to_href(name, spine_name)
etree.SubElement(head,
XHTML('link'),
rel='stylesheet',
type='text/css',
href=href).tail = '\n'
container.dirty(spine_name)
return True
if __name__ == '__main__':
from calibre.ebooks.oeb.polish.container import get_container
from calibre.ebooks.oeb.polish.stats import StatsCollector
from calibre.utils.logging import default_log
default_log.filter_level = default_log.DEBUG
inbook = sys.argv[-1]
ebook = get_container(inbook, default_log)
report = []
stats = StatsCollector(ebook, do_embed=True)
embed_all_fonts(ebook, stats, report.append)
outbook, ext = inbook.rpartition('.')[0::2]
outbook += '_subset.' + ext
ebook.commit(outbook)
prints('\nReport:')
for msg in report:
prints(msg)
print()
prints('Output written to:', outbook)