+++ /dev/null
-# This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later.
-# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
-#
-import sys
-
-from django.contrib.auth.models import User
-from django.core.management.base import BaseCommand
-from django.core.management.color import color_style
-from django.db import transaction
-
-from catalogue.models import Book
-
-
-def common_prefix(texts):
- common = []
-
- min_len = min(len(text) for text in texts)
- for i in range(min_len):
- chars = list(set([text[i] for text in texts]))
- if len(chars) > 1:
- break
- common.append(chars[0])
- return "".join(common)
-
-
-class Command(BaseCommand):
- help = 'Merges multiple books into one.'
- args = '[slug]...'
-
- def add_arguments(self, parser):
- self.add_argument(
- '-s', '--slug', dest='new_slug', metavar='SLUG',
- help='New slug of the merged book (defaults to common part of all slugs).')
- self.add_argument(
- '-t', '--title', dest='new_title', metavar='TITLE',
- help='New title of the merged book (defaults to common part of all titles).')
- self.add_argument(
- '-q', '--quiet', action='store_false', dest='verbose', default=True,
- help='Less output')
- self.add_argument(
- '-g', '--guess', action='store_true', dest='guess', default=False,
- help='Try to guess what merges are needed (but do not apply them).')
- self.add_argument(
- '-d', '--dry-run', action='store_true', dest='dry_run', default=False,
- help='Dry run: do not actually change anything.')
- self.add_argument(
- '-f', '--force', action='store_true', dest='force', default=False,
- help='On slug conflict, hide the original book to archive.')
-
- def print_guess(self, dry_run=True, force=False):
- from collections import defaultdict
- from pipes import quote
- import re
-
- def read_slug(slug):
- res = []
- res.append((re.compile(r'__?(przedmowa)$'), -1))
- res.append((re.compile(r'__?(cz(esc)?|ksiega|rozdzial)__?(?P<n>\d*)$'), None))
- res.append((re.compile(r'__?(rozdzialy__?)?(?P<n>\d*)-'), None))
-
- for r, default in res:
- m = r.search(slug)
- if m:
- start = m.start()
- try:
- return int(m.group('n')), slug[:start]
- except IndexError:
- return default, slug[:start]
- return None, slug
-
- def file_to_title(fname):
- """ Returns a title-like version of a filename. """
- parts = (p.replace('_', ' ').title() for p in fname.split('__'))
- return ' / '.join(parts)
-
- merges = defaultdict(list)
- slugs = []
- for b in Book.objects.all():
- slugs.append(b.slug)
- n, ns = read_slug(b.slug)
- if n is not None:
- merges[ns].append((n, b))
-
- conflicting_slugs = []
- for slug in sorted(merges.keys()):
- merge_list = sorted(merges[slug])
- if len(merge_list) < 2:
- continue
-
- merge_slugs = [b.slug for i, b in merge_list]
- if slug in slugs and slug not in merge_slugs:
- conflicting_slugs.append(slug)
-
- title = file_to_title(slug)
- print("./manage.py merge_books %s%s--title=%s --slug=%s \\\n %s\n" % (
- '--dry-run ' if dry_run else '',
- '--force ' if force else '',
- quote(title), slug,
- " \\\n ".join(merge_slugs)
- ))
-
- if conflicting_slugs:
- if force:
- print(self.style.NOTICE('# These books will be archived:'))
- else:
- print(self.style.ERROR('# ERROR: Conflicting slugs:'))
- for slug in conflicting_slugs:
- print('#', slug)
-
-
- def handle(self, *slugs, **options):
-
- self.style = color_style()
-
- force = options.get('force')
- guess = options.get('guess')
- dry_run = options.get('dry_run')
- new_slug = options.get('new_slug').decode('utf-8')
- new_title = options.get('new_title').decode('utf-8')
- verbose = options.get('verbose')
-
- if guess:
- if slugs:
- print("Please specify either slugs, or --guess.")
- return
- else:
- self.print_guess(dry_run, force)
- return
- if not slugs:
- print("Please specify some book slugs")
- return
-
- # Start transaction management.
- transaction.enter_transaction_management()
-
- books = [Book.objects.get(slug=slug) for slug in slugs]
- common_slug = common_prefix(slugs)
- common_title = common_prefix([b.title for b in books])
-
- if not new_title:
- new_title = common_title
- elif common_title.startswith(new_title):
- common_title = new_title
-
- if not new_slug:
- new_slug = common_slug
- elif common_slug.startswith(new_slug):
- common_slug = new_slug
-
- if slugs[0] != new_slug and Book.objects.filter(slug=new_slug).exists():
- self.style.ERROR('Book already exists, skipping!')
-
-
- if dry_run and verbose:
- print(self.style.NOTICE('DRY RUN: nothing will be changed.'))
- print()
-
- if verbose:
- print("New title:", self.style.NOTICE(new_title))
- print("New slug:", self.style.NOTICE(new_slug))
- print()
-
- for i, book in enumerate(books):
- chunk_titles = []
- chunk_slugs = []
-
- book_title = book.title[len(common_title):].replace(' / ', ' ').lstrip()
- book_slug = book.slug[len(common_slug):].replace('__', '_').lstrip('-_')
- for j, chunk in enumerate(book):
- if j:
- new_chunk_title = book_title + '_%d' % j
- new_chunk_slug = book_slug + '_%d' % j
- else:
- new_chunk_title, new_chunk_slug = book_title, book_slug
-
- chunk_titles.append(new_chunk_title)
- chunk_slugs.append(new_chunk_slug)
-
- if verbose:
- print("title: %s // %s -->\n %s // %s\nslug: %s / %s -->\n %s / %s" % (
- book.title, chunk.title,
- new_title, new_chunk_title,
- book.slug, chunk.slug,
- new_slug, new_chunk_slug))
- print()
-
- if not dry_run:
- try:
- conflict = Book.objects.get(slug=new_slug)
- except Book.DoesNotExist:
- conflict = None
- else:
- if conflict == books[0]:
- conflict = None
-
- if conflict:
- if force:
- # FIXME: there still may be a conflict
- conflict.slug = '.' + conflict.slug
- conflict.save()
- print(self.style.NOTICE('Book with slug "%s" moved to "%s".' % (new_slug, conflict.slug)))
- else:
- print(self.style.ERROR('ERROR: Book with slug "%s" exists.' % new_slug))
- return
-
- if i:
- books[0].append(books[i], slugs=chunk_slugs, titles=chunk_titles)
- else:
- book.title = new_title
- book.slug = new_slug
- book.save()
- for j, chunk in enumerate(book):
- chunk.title = chunk_titles[j]
- chunk.slug = chunk_slugs[j]
- chunk.save()
-
-
- transaction.commit()
- transaction.leave_transaction_management()
-
fnp / redakcja.git / blobdiff