Class: AppStore::Emigrant::Library

Inherits:
Object
  • Object
show all
Defined in:
lib/app-store-emigrant/library.rb

Overview

Represents a single iTunes mobile applications library

Defined Under Namespace

Classes: DoesNotExist

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ Library

Initializes library from given path



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# File 'lib/app-store-emigrant/library.rb', line 15

def initialize path
  @path = Pathname.new path
  @path = @path.expand_path unless @path.absolute?

  # Ensure library is a valid directory
  unless @path.directory?
    raise DoesNotExist, "Given path is not a valid mobile applications library: #{@path}"
  end

  @apps = nil
end

Instance Attribute Details

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/app-store-emigrant/library.rb', line 12

def path
  @path
end

Class Method Details

.default ⇒ Object

Returns the default library (if any) for this system See Apple’s support documents as to where libraries can be found



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# File 'lib/app-store-emigrant/library.rb', line 95

def self.default

  # Use the homedir provided through the environment
  homedir = ENV['HOME']

  # List all locations
  locations = [

    # Mac OSX and Windows Vista
    "#{homedir}/Music/iTunes/iTunes Media/Mobile Applications",

    # Windows 7
    "#{homedir}/My Music/iTunes/iTunes Media/Mobile Applications",

    # Windows XP
    "#{homedir}/My Documents/My Music/iTunes/iTunes Media/Mobile Applications",

    # Mac OSX and Windows Vista (prior to iTunes 9)
    "#{homedir}/Music/iTunes/Mobile Applications",

    # Windows 7 (prior to iTunes 9)
    "#{homedir}/My Music/iTunes/Mobile Applications",

    # Windows XP (prior to iTunes 9)
    "#{homedir}/My Documents/My Music/iTunes/Mobile Applications",

  ]

  # Raise exception if no default library could be found
  path = Dir.glob(locations).first
  unless path
    raise DoesNotExist, 'Could not locate default iTunes mobile applications library'
  end

  # Return an instance of this default library
  Library.new path
end

Instance Method Details

#apps ⇒ Object

Retrieves a list of applications



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# File 'lib/app-store-emigrant/library.rb', line 28

def apps
  unless @apps
    load!
  end

  @apps
end

#clouddata! ⇒ Object

Populates applications’ cloud data in bulk



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# File 'lib/app-store-emigrant/library.rb', line 60

def clouddata!

  # Collect all application ids, skipping any invalid ones
  ids = apps.collect do |app|
    app.id
  end.compact

  # Queries Apple's iTunes Store API for latest cloud data using undocumented bulk method
  response = Net::HTTP.get('itunes.apple.com', '/lookup?id=' + ids.join(','))
  results = JSON.parse(response)['results']
  results.each do |result|
    if app = get(result['trackId'] || -1)
      app.clouddata = result
    end
  end
end

#find(snippet) ⇒ Object

Searches for applications containing given snippet in filename



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# File 'lib/app-store-emigrant/library.rb', line 85

def find snippet
  apps.select do |app|
    app.filename.include? snippet
  end
end

#get(id) ⇒ Object

Searches for application with given id



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# File 'lib/app-store-emigrant/library.rb', line 78

def get id
  apps.select do |app|
    app.id == id
  end.first
end

#load! ⇒ Object

Forcefully loads applications from disk



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# File 'lib/app-store-emigrant/library.rb', line 47

def load!
  @apps = []
  @path.children.each do |item|
    if item.file?
      begin
        @apps << App.new(item)
      rescue App::Invalid; end
    end
  end
  self
end

#outdated_apps ⇒ Object

Retrieves a list of outdated applications



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# File 'lib/app-store-emigrant/library.rb', line 42

def outdated_apps
  apps.select { |app| app.valid? && app.outdated? }
end

#valid_apps ⇒ Object

Retrieves a list of valid applications



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# File 'lib/app-store-emigrant/library.rb', line 37

def valid_apps
  apps.select { |app| app.valid? }
end