# This file is part of Librarian, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
-from collections import namedtuple
import os.path
import optparse
-from librarian import DirDocProvider, ParseError
-from librarian.parser import WLDocument
-from librarian.cover import WLCover
+from librarian import ParseError
+from librarian.document import Document
class Option(object):
Subclass it for any format you want to convert to.
"""
- format_name = None # Set format name, like "PDF".
- ext = None # Set file extension, like "pdf".
- uses_cover = False # Can it add a cover?
- cover_optional = True # Only relevant if uses_cover
- uses_provider = False # Does it need a DocProvider?
- transform = None # Transform method. Uses WLDocument.as_{ext} by default.
- parser_options = [] # List of Option objects for additional parser args.
- transform_options = [] # List of Option objects for additional transform args.
- transform_flags = [] # List of Option objects for supported transform flags.
-
+ format_cls = None # A formats.Format subclass
+ document_options = [] # List of Option objects for document options.
+ format_options = [] # List of Option objects for format customization.
+ build_options = [] # List of Option objects for build options.
@classmethod
def run(cls):
# Parse commandline arguments
usage = """Usage: %%prog [options] SOURCE [SOURCE...]
- Convert SOURCE files to %s format.""" % cls.format_name
+ Convert SOURCE files to %s.""" % cls.format_cls.format_name
parser = optparse.OptionParser(usage=usage)
- parser.add_option('-v', '--verbose',
- action='store_true', dest='verbose', default=False,
- help='print status messages to stdout')
- parser.add_option('-d', '--make-dir',
- action='store_true', dest='make_dir', default=False,
- help='create a directory for author and put the output file in it')
- parser.add_option('-o', '--output-file',
- dest='output_file', metavar='FILE',
- help='specifies the output file')
- parser.add_option('-O', '--output-dir',
- dest='output_dir', metavar='DIR',
- help='specifies the directory for output')
- if cls.uses_cover:
- if cls.cover_optional:
- parser.add_option('-c', '--with-cover',
- action='store_true', dest='with_cover', default=False,
- help='create default cover')
- parser.add_option('-C', '--image-cache',
- dest='image_cache', metavar='URL',
- help='prefix for image download cache' +
- (' (implies --with-cover)' if cls.cover_optional else ''))
- for option in cls.parser_options + cls.transform_options + cls.transform_flags:
+ parser.add_option(
+ '-v', '--verbose',
+ action='store_true', dest='verbose', default=False,
+ help='print status messages to stdout')
+ parser.add_option(
+ '-o', '--output-file',
+ dest='output_file', metavar='FILE',
+ help='specifies the output file')
+ for option in cls.document_options + cls.format_options + cls.build_options:
option.add(parser)
options, input_filenames = parser.parse_args()
if len(input_filenames) < 1:
parser.print_help()
- return(1)
-
- # Prepare additional args for parser.
- parser_args = {}
- for option in cls.parser_options:
- parser_args[option.name()] = option.value(options)
- # Prepare additional args for transform method.
- transform_args = {}
- for option in cls.transform_options:
- transform_args[option.name()] = option.value(options)
- # Add flags to transform_args, if any.
- transform_flags = [flag.name() for flag in cls.transform_flags
- if flag.value(options)]
- if transform_flags:
- transform_args['flags'] = transform_flags
- # Add cover support, if any.
- if cls.uses_cover:
- if options.image_cache:
- def cover_class(*args, **kwargs):
- return WLCover(image_cache=options.image_cache, *args, **kwargs)
- transform_args['cover'] = cover_class
- elif not cls.cover_optional or options.with_cover:
- transform_args['cover'] = WLCover
-
+ return 1
+
+ # Prepare additional args for document.
+ document_args = {}
+ for option in cls.document_options:
+ document_args[option.name()] = option.value(options)
+ # Prepare additional args for format.
+ format_args = {}
+ for option in cls.format_options:
+ format_args[option.name()] = option.value(options)
+ # Prepare additional args for build.
+ build_args = {}
+ for option in cls.build_options:
+ build_args[option.name()] = option.value(options)
# Do some real work
try:
if options.verbose:
print main_input
- # Where to find input?
- if cls.uses_provider:
- path, fname = os.path.realpath(main_input).rsplit('/', 1)
- provider = DirDocProvider(path)
- else:
- provider = None
-
- # Where to write output?
- if not (options.output_file or options.output_dir):
- output_file = os.path.splitext(main_input)[0] + '.' + cls.ext
- else:
- output_file = None
-
- # Do the transformation.
- doc = WLDocument.from_file(main_input, provider=provider, **parser_args)
- transform = cls.transform
- if transform is None:
- transform = getattr(WLDocument, 'as_%s' % cls.ext)
- output = transform(doc, **transform_args)
-
- doc.save_output_file(output,
- output_file, options.output_dir, options.make_dir, cls.ext)
+ # Do the transformation.
+ doc = Document.from_file(main_input, **document_args)
+ format_ = cls.format_cls(doc, **format_args)
+
+ # Where to write output?
+ if not options.output_file:
+ output_file = os.path.splitext(main_input)[0] + '.' + format_.format_ext
+ else:
+ output_file = None
+
+ output = format_.build(**build_args)
+ output.save_as(output_file)
except ParseError, e:
print '%(file)s:%(name)s:%(message)s' % {
fnp / librarian.git / blobdiff