Class: Alexandria::LibraryStore

Inherits:
Object
  • Object
show all
Includes:
Logging, GetText
Defined in:
lib/alexandria/library_store.rb

Constant Summary collapse

FIX_BIGNUM_REGEX = 
%r{loaned_since:\s*(!ruby/object:Bignum\s*)?(\d+)\n}

Instance Method Summary collapse

Methods included from Logging

included, #log

Constructor Details

#initialize(dir) ⇒ LibraryStore

Returns a new instance of LibraryStore.



18
19
20
 
# File 'lib/alexandria/library_store.rb', line 18

def initialize(dir)
  @dir = dir
end

Instance Method Details

#library_dir ⇒ Object 



166
167
168
 
# File 'lib/alexandria/library_store.rb', line 166

def library_dir
  @dir
end

#load_all_libraries ⇒ Object 



22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
 
# File 'lib/alexandria/library_store.rb', line 22

def load_all_libraries
  a = []
  begin
    Dir.entries(library_dir).each do |file|
      # Skip hidden files.
      next if file.start_with?(".")
      # Skip non-directory files.
      next unless File.stat(File.join(library_dir, file)).directory?

      a << load_library(file)
    end
  rescue Errno::ENOENT
    FileUtils.mkdir_p(library_dir)
  end

  # Create the default library if there is no library yet.
  a << load_library(_("My Library")) if a.empty?

  a
end

#load_all_smart_libraries ⇒ Object 



139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
 
# File 'lib/alexandria/library_store.rb', line 139

def load_all_smart_libraries
  a = []
  begin
    # Deserialize smart libraries.
    Dir.chdir(smart_library_dir) do
      Dir["*" + SmartLibrary::EXT].each do |filename|
        # Skip non-regular files.
        next unless File.stat(filename).file?

        text = File.read(filename)
        hash = YAML.safe_load(text, permitted_classes: [Symbol])
        smart_library = SmartLibrary.from_hash(hash, self)
        a << smart_library
      end
    end
  rescue Errno::ENOENT
    # First run and no smart libraries yet? Provide some default
    # ones.
    SmartLibrary.sample_smart_libraries(self).each do |smart_library|
      smart_library.save
      a << smart_library
    end
  end
  a.each(&:refilter)
  a
end

#load_library(name) ⇒ Object 



43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
 
# File 'lib/alexandria/library_store.rb', line 43

def load_library(name)
  test = [0, nil]
  ruined_books = []
  library = Library.new(name, self)
  FileUtils.mkdir_p(library.path)
  Dir.chdir(library.path) do
    Dir["*" + Library::EXT[:book]].each do |filename|
      test[1] = filename if test[0].zero?

      unless File.size? test[1]
        handle_empty_book_file(test[1], ruined_books)
        next
      end
      book = regularize_book_from_yaml(test[1])
      old_isbn = book.isbn
      old_pub_year = book.publishing_year
      begin
        raise format(_("Not a book: %<book>s"), book.inspect) unless book.is_a?(Book)

        ean = Library.canonicalise_ean(book.isbn)
        book.isbn = ean if ean

        unless book.publishing_year.nil?
          book.publishing_year = book.publishing_year.to_i
        end

        # Or if isbn has changed
        unless book.isbn == old_isbn
          raise format(_("%<file>s isbn is not okay"), file: test[1])
        end

        # Re-save book if Alexandria::DATA_VERSION changes
        unless book.version == Alexandria::DATA_VERSION
          raise format(_("%<file>s version is not okay"), file: test[1])
        end

        # Or if publishing year has changed
        unless book.publishing_year == old_pub_year
          raise format(_("%<file>s pub year is not okay"), file: test[1])
        end

        # ruined_books << [book, book.isbn, library]
        book.library = library.name

        ## TODO copy cover image file, if necessary
        # due to #26909 cover files for books without ISBN are re-saved as
        # "g#{ident}.cover"
        if (book.isbn.nil? || book.isbn.empty?) && File.exist?(library.old_cover(book))
          log.debug do
            "#{library.name}; book #{book.title} has no ISBN, fixing cover image"
          end
          FileUtils::Verbose.mv(library.old_cover(book), library.cover(book))
        end

        library << book
      rescue StandardError
        book.version = Alexandria::DATA_VERSION
        savedfilename = library.simple_save(book)
        test[0] = test[0] + 1
        test[1] = savedfilename

        # retries the Dir.each block...
        # but gives up after three tries
        redo unless test[0] > 2
      else
        test = [0, nil]
      end
    end

    # Since 0.4.0 the cover files '_small.jpg' and
    # '_medium.jpg' have been deprecated for a single medium
    # cover file named '.cover'.

    Dir["*" + "_medium.jpg"].each do |medium_cover|
      FileUtils.mv(medium_cover,
                   medium_cover.sub(/_medium\.jpg$/,
                                    Library::EXT[:cover]))
    end

    Dir["*" + Library::EXT[:cover]].each do |cover|
      next if cover[0] == "g"

      md = /(.+)\.cover/.match(cover)
      ean = Library.canonicalise_ean(md[1]) || md[1]
      unless cover == ean + Library::EXT[:cover]
        FileUtils.mv(cover, ean + Library::EXT[:cover])
      end
    end

    FileUtils.rm_f(Dir["*_small.jpg"])
  end
  library.ruined_books = ruined_books

  library
end

#smart_library_dir ⇒ Object 



170
171
172
 
# File 'lib/alexandria/library_store.rb', line 170

def smart_library_dir
  File.join(@dir, ".smart_libraries")
end