Class: U3d::Cache

Inherits:
Object
  • Object
show all
Defined in:
lib/u3d/cache.rb

Overview

Cache stores the informations regarding versions

Constant Summary collapse

DEFAULT_NAME =

Name of the cache file

'cache.json'
CACHE_LIFE =

Maximum duration after which the cache is considered outdated Currently set to 24h

60 * 60 * 24
GLOBAL_CACHE_URL = 
'https://dragonbox.github.io/unities/v1/versions.json'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path: nil, force_os: nil, force_refresh: false, offline: false, central_cache: false) ⇒ Cache

Returns a new instance of Cache.



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# File 'lib/u3d/cache.rb', line 58

def initialize(path: nil, force_os: nil, force_refresh: false, offline: false, central_cache: false)
  raise "Cache: cannot specify both offline and force_refresh" if offline && force_refresh

  @path = path || Cache.default_os_path
  @cache = {}
  os = force_os || U3dCore::Helper.operating_system
  Utils.ensure_dir(@path)
  file_path = File.expand_path(DEFAULT_NAME, @path)
  need_update, data = check_for_update(file_path, os)
  if offline
    UI.verbose("Cache outdated but we are working offline, so no updating it.")
    need_update = false
  end
  @cache = data
  overwrite_cache(file_path, os, central_cache: central_cache) if need_update || force_refresh
end

Instance Attribute Details

#path ⇒ Object

Returns the value of attribute path.



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# File 'lib/u3d/cache.rb', line 50

def path
  @path
end

Class Method Details

.default_os_path ⇒ Object 



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# File 'lib/u3d/cache.rb', line 75

def self.default_os_path
  U3dCore::Helper.data_path
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/u3d/cache.rb', line 52

def [](key)
  return nil if @cache[key].nil?

  @cache[key]
end