Current File : //lib/calibre/calibre/devices/utils.py
#!/usr/bin/env python3
__license__ = 'GPL v3'
__copyright__ = '2012, Kovid Goyal <kovid at kovidgoyal.net>'
__docformat__ = 'restructuredtext en'
import os, time, re
from functools import partial
from calibre.devices.errors import DeviceError, WrongDestinationError, FreeSpaceError
def sanity_check(on_card, files, card_prefixes, free_space):
if on_card == 'carda' and not card_prefixes[0]:
raise WrongDestinationError(_(
'The reader has no storage card %s. You may have changed '
'the default send to device action. Right click on the "Send '
'to device" button and reset the default action to be '
'"Send to main memory".')%'A')
elif on_card == 'cardb' and not card_prefixes[1]:
raise WrongDestinationError(_(
'The reader has no storage card %s. You may have changed '
'the default send to device action. Right click on the "Send '
'to device" button and reset the default action to be '
'"Send to main memory".')%'B')
elif on_card and on_card not in ('carda', 'cardb'):
raise DeviceError(_('Selected slot: %s is not supported.') % on_card)
size = 0
for f in files:
size += os.path.getsize(getattr(f, 'name', f))
if not on_card and size > free_space[0] - 2*1024*1024:
raise FreeSpaceError(_("There is insufficient free space in main memory"))
if on_card == 'carda' and size > free_space[1] - 1024*1024:
raise FreeSpaceError(_("There is insufficient free space on the storage card"))
if on_card == 'cardb' and size > free_space[2] - 1024*1024:
raise FreeSpaceError(_("There is insufficient free space on the storage card"))
def build_template_regexp(template):
from calibre import prints
def replfunc(match, seen=None):
v = match.group(1)
if v in ['authors', 'author_sort']:
v = 'author'
if v in ('title', 'series', 'series_index', 'isbn', 'author'):
if v not in seen:
seen.add(v)
return '(?P<' + v + '>.+?)'
return '(.+?)'
s = set()
f = partial(replfunc, seen=s)
try:
template = template.rpartition('/')[2]
return re.compile(re.sub('{([^}]*)}', f, template) + r'([_\d]*$)')
except:
prints('Failed to parse template: %r'%template)
template = '{title} - {authors}'
return re.compile(re.sub('{([^}]*)}', f, template) + r'([_\d]*$)')
def create_upload_path(mdata, fname, template, sanitize,
prefix_path='',
path_type=os.path,
maxlen=250,
use_subdirs=True,
news_in_folder=True,
filename_callback=lambda x, y:x,
sanitize_path_components=lambda x: x
):
from calibre.library.save_to_disk import get_components, config
from calibre.utils.filenames import shorten_components_to
special_tag = None
if mdata.tags:
for t in mdata.tags:
if t.startswith(_('News')) or t.startswith('/'):
special_tag = t
break
if mdata.tags and _('News') in mdata.tags:
try:
p = mdata.pubdate
date = (p.year, p.month, p.day)
except:
today = time.localtime()
date = (today[0], today[1], today[2])
template = "{title}_%d-%d-%d" % date
fname = sanitize(fname)
ext = path_type.splitext(fname)[1]
opts = config().parse()
if not isinstance(template, str):
template = template.decode('utf-8')
app_id = str(getattr(mdata, 'application_id', ''))
id_ = mdata.get('id', fname)
extra_components = get_components(template, mdata, id_,
timefmt=opts.send_timefmt, length=maxlen-len(app_id)-1,
sanitize_func=sanitize, last_has_extension=False)
if not extra_components:
extra_components.append(sanitize(filename_callback(fname,
mdata)))
else:
extra_components[-1] = sanitize(filename_callback(extra_components[-1]+ext, mdata))
if extra_components[-1] and extra_components[-1][0] in ('.', '_'):
extra_components[-1] = 'x' + extra_components[-1][1:]
if special_tag is not None:
name = extra_components[-1]
extra_components = []
tag = special_tag
if tag.startswith(_('News')):
if news_in_folder:
extra_components.append('News')
else:
for c in tag.split('/'):
c = sanitize(c)
if not c:
continue
extra_components.append(c)
extra_components.append(name)
if not use_subdirs:
extra_components = extra_components[-1:]
def remove_trailing_periods(x):
ans = x
while ans.endswith('.'):
ans = ans[:-1].strip()
if not ans:
ans = 'x'
return ans
extra_components = list(map(remove_trailing_periods, extra_components))
components = shorten_components_to(maxlen - len(prefix_path), extra_components)
components = sanitize_path_components(components)
if prefix_path:
filepath = path_type.join(prefix_path, *components)
else:
filepath = path_type.join(*components)
return filepath
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