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#!/usr/bin/env python3
# License: GPLv3 Copyright: 2009, Kovid Goyal <kovid at kovidgoyal.net>
import os
import shutil
from calibre.customize.ui import run_plugins_on_import
from calibre.ebooks.metadata.meta import metadata_from_formats
from calibre.ebooks.metadata.opf2 import metadata_to_opf
from calibre.utils.filenames import samefile
def serialize_metadata_for(paths, tdir, group_id):
mi = metadata_from_formats(paths)
mi.cover = None
cdata = None
if mi.cover_data:
cdata = mi.cover_data[-1]
mi.cover_data = (None, None)
if not mi.application_id:
mi.application_id = '__calibre_dummy__'
opf = metadata_to_opf(mi, default_lang='und')
has_cover = False
if cdata:
with open(os.path.join(tdir, '%s.cdata' % group_id), 'wb') as f:
f.write(cdata)
has_cover = True
return mi, opf, has_cover
def read_metadata_bulk(get_opf, get_cover, paths):
mi = metadata_from_formats(paths)
mi.cover = None
cdata = None
if mi.cover_data:
cdata = mi.cover_data[-1]
mi.cover_data = (None, None)
if not mi.application_id:
mi.application_id = '__calibre_dummy__'
ans = {'opf': None, 'cdata': None}
if get_opf:
ans['opf'] = metadata_to_opf(mi, default_lang='und')
if get_cover:
ans['cdata'] = cdata
return ans
def run_import_plugins(paths, group_id, tdir):
final_paths = []
for path in paths:
if not os.access(path, os.R_OK):
continue
try:
nfp = run_plugins_on_import(path)
except Exception:
nfp = None
import traceback
traceback.print_exc()
if nfp and os.access(nfp, os.R_OK) and not samefile(nfp, path):
# Ensure that the filename is preserved so that
# reading metadata from filename is not broken
name = os.path.splitext(os.path.basename(path))[0]
ext = os.path.splitext(nfp)[1]
path = os.path.join(tdir, str(group_id), name + ext)
os.makedirs(os.path.dirname(path), exist_ok=True)
try:
os.replace(nfp, path)
except OSError:
shutil.copyfile(nfp, path)
final_paths.append(path)
return final_paths
def has_book(mi, data_for_has_book):
return mi.title and icu_lower(mi.title.strip()) in data_for_has_book
def read_metadata(paths, group_id, tdir, common_data=None):
paths = run_import_plugins(paths, group_id, tdir)
mi, opf, has_cover = serialize_metadata_for(paths, tdir, group_id)
duplicate_info = None
if isinstance(common_data, (set, frozenset)):
duplicate_info = has_book(mi, common_data)
return paths, opf, has_cover, duplicate_info
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