collect static in fab
[wolnelektury.git] / apps / catalogue / management / commands / importbooks.py
1 # -*- coding: utf-8 -*-
2 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
4 #
5 import os
6 import sys
7 import time
8 from optparse import make_option
9 from django.conf import settings
10 from django.core.management.base import BaseCommand
11 from django.core.management.color import color_style
12 from django.core.files import File
13
14 from catalogue.models import Book
15 from picture.models import Picture
16
17 from search import Index
18
19 class Command(BaseCommand):
20     option_list = BaseCommand.option_list + (
21         make_option('-q', '--quiet', action='store_false', dest='verbose', default=True,
22             help='Verbosity level; 0=minimal output, 1=normal output, 2=all output'),
23         make_option('-f', '--force', action='store_true', dest='force', default=False,
24             help='Overwrite works already in the catalogue'),
25         make_option('-E', '--no-build-epub', action='store_false', dest='build_epub', default=True,
26             help='Don\'t build EPUB file'),
27         make_option('-M', '--no-build-mobi', action='store_false', dest='build_mobi', default=True,
28             help='Don\'t build MOBI file'),
29         make_option('-T', '--no-build-txt', action='store_false', dest='build_txt', default=True,
30             help='Don\'t build TXT file'),
31         make_option('-P', '--no-build-pdf', action='store_false', dest='build_pdf', default=True,
32             help='Don\'t build PDF file'),
33         make_option('-S', '--no-search-index', action='store_false', dest='search_index', default=True,
34             help='Skip indexing imported works for search'),
35         make_option('-w', '--wait-until', dest='wait_until', metavar='TIME',
36             help='Wait until specified time (Y-M-D h:m:s)'),
37         make_option('-p', '--picture', action='store_true', dest='import_picture', default=False,
38             help='Import pictures'),
39     )
40     help = 'Imports books from the specified directories.'
41     args = 'directory [directory ...]'
42
43     def import_book(self, file_path, options):
44         verbose = options.get('verbose')
45         file_base, ext = os.path.splitext(file_path)
46         book = Book.from_xml_file(file_path, overwrite=options.get('force'),
47                                                     build_epub=options.get('build_epub'),
48                                                     build_txt=options.get('build_txt'),
49                                                     build_pdf=options.get('build_pdf'),
50                                                     build_mobi=options.get('build_mobi'),
51                                                     search_index=options.get('search_index'),
52                                                     search_index_reuse=True, search_index_tags=False)
53         for ebook_format in Book.ebook_formats:
54             if os.path.isfile(file_base + '.' + ebook_format):
55                 getattr(book, '%s_file' % ebook_format).save(
56                     '%s.%s' % (book.slug, ebook_format), 
57                     File(file(file_base + '.' + ebook_format)))
58                 if verbose:
59                     print "Importing %s.%s" % (file_base, ebook_format)
60
61         book.save()
62
63     def import_picture(self, file_path, options):
64         picture = Picture.from_xml_file(file_path, overwrite=options.get('force'))
65         return picture
66
67     def handle(self, *directories, **options):
68         from django.db import transaction
69
70         self.style = color_style()
71
72         verbose = options.get('verbose')
73         force = options.get('force')
74         show_traceback = options.get('traceback', False)
75         import_picture = options.get('import_picture')
76
77         wait_until = None
78         if options.get('wait_until'):
79             wait_until = time.mktime(time.strptime(options.get('wait_until'), '%Y-%m-%d %H:%M:%S'))
80             if verbose > 0:
81                 print "Will wait until %s; it's %f seconds from now" % (
82                     time.strftime('%Y-%m-%d %H:%M:%S',
83                     time.localtime(wait_until)), wait_until - time.time())
84
85         if options.get('search_index') and not settings.NO_SEARCH_INDEX:
86             index = Index()
87             index.open()
88             try:
89                 index.index_tags()
90             finally:
91                 index.close()
92
93         # Start transaction management.
94         transaction.commit_unless_managed()
95         transaction.enter_transaction_management()
96         transaction.managed(True)
97
98         files_imported = 0
99         files_skipped = 0
100         
101         for dir_name in directories:
102             if not os.path.isdir(dir_name):
103                 print self.style.ERROR("%s: Not a directory. Skipping." % dir_name)
104             else:
105                 # files queue
106                 files = sorted(os.listdir(dir_name))
107                 postponed = {}
108                 while files:
109                     file_name = files.pop(0)
110                     file_path = os.path.join(dir_name, file_name)
111                     file_base, ext = os.path.splitext(file_path)
112
113                     # Skip files that are not XML files
114                     if not ext == '.xml':
115                         continue
116
117                     if verbose > 0:
118                         print "Parsing '%s'" % file_path
119                     else:
120                         sys.stdout.write('.')
121                         sys.stdout.flush()
122
123                     # Import book files
124                     try:
125                         if import_picture:
126                             self.import_picture(file_path, options)
127                         else:
128                             self.import_book(file_path, options)
129                         files_imported += 1
130                         transaction.commit()
131                         
132                     except (Book.AlreadyExists, Picture.AlreadyExists):
133                         print self.style.ERROR('%s: Book or Picture already imported. Skipping. To overwrite use --force.' %
134                             file_path)
135                         files_skipped += 1
136
137                     except Book.DoesNotExist, e:
138                         if file_name not in postponed or postponed[file_name] < files_imported:
139                             # push it back into the queue, maybe the missing child will show up
140                             if verbose:
141                                 print self.style.NOTICE('Waiting for missing children')
142                             files.append(file_name)
143                             postponed[file_name] = files_imported
144                         else:
145                             # we're in a loop, nothing's being imported - some child is really missing
146                             raise e
147
148         # Print results
149         print
150         print "Results: %d files imported, %d skipped, %d total." % (
151             files_imported, files_skipped, files_imported + files_skipped)
152         print
153
154         if wait_until:
155             print 'Waiting...'
156             try:
157                 time.sleep(wait_until - time.time())
158             except IOError:
159                 print "it's already too late"
160
161         transaction.commit()
162         transaction.leave_transaction_management()
163