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