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calibredb: Add a new clone command

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calibredb: Add a new clone command to create clones of libraries with
the same custom columns, virtual libraries, etc. as the current library.
This commit is contained in:
Kovid Goyal 2013-07-28 09:44:45 +05:30
parent fac9845f90
commit f8ad733e25
1 changed files with 47 additions and 2 deletions
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49
src/calibre/library/cli.py
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@ -11,7 +11,8 @@ import sys, os, cStringIO, re
import unicodedata
from textwrap import TextWrapper
from calibre import preferred_encoding, prints, isbytestring
from calibre import preferred_encoding, prints, isbytestring, patheq
from calibre.constants import iswindows
from calibre.utils.config import OptionParser, prefs, tweaks
from calibre.ebooks.metadata.meta import get_metadata
from calibre.ebooks.metadata.book.base import field_from_string
@ -1389,12 +1390,55 @@ def command_list_categories(args, dbpath):
else:
do_list()
return parser
def command_clone(args, dbpath):
parser = get_parser(_(
'''\
%prog clone path/to/new/library
Create a clone of the current library. This creates a new, empty library that has all the
same custom columns, virtual libraries and other settings as the current library.
The cloned library will contain no books. If you want to create a full duplicate, including
all books, then simply use your filesystem tools to copy the library folder.
'''))
opts, args = parser.parse_args(args)
if len(args) < 1:
parser.print_help()
print
prints(_('Error: You must specify the path to the cloned library'))
return 1
db = get_db(dbpath, opts)
loc = args[0]
if not os.path.exists(loc):
os.makedirs(loc)
loc = os.path.abspath(loc)
if patheq(loc, db.library_path):
prints(_('The location for the new library is the same as the current library'))
return 1
empty = not os.listdir(loc)
if not empty:
prints(_('%s is not empty. You must choose an empty directory for the new library.') % loc)
return 1
from calibre.db import get_db_loader
LibraryDatabase = get_db_loader()[0]
if iswindows and len(loc) > LibraryDatabase.WINDOWS_LIBRARY_PATH_LIMIT:
prints(_('Path to library too long. Must be less than'
' %d characters.')%LibraryDatabase.WINDOWS_LIBRARY_PATH_LIMIT)
return 1
dbprefs = dict(db.prefs)
db.close()
LibraryDatabase(loc, default_prefs=dbprefs)
COMMANDS = ('list', 'add', 'remove', 'add_format', 'remove_format',
'show_metadata', 'set_metadata', 'export', 'catalog',
'saved_searches', 'add_custom_column', 'custom_columns',
'remove_custom_column', 'set_custom', 'restore_database',
'check_library', 'list_categories', 'backup_metadata')
'check_library', 'list_categories', 'backup_metadata',
'clone')
def option_parser():
@ -1432,3 +1476,4 @@ def main(args=sys.argv):
if __name__ == '__main__':
sys.exit(main())