class AppCache
Provides a common interface for caching and accessing cached cookbook data
Public Class Methods
for(cookbook_path, cache_file = nil)
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# File lib/chef_cached_app_info.rb, line 5 def self.for(cookbook_path, cache_file = nil) AppCache.new(cookbook_path, cache_file) end
new(cookbook_path, cache_file = nil)
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# File lib/chef_cached_app_info.rb, line 9 def initialize(cookbook_path, cache_file = nil) @cookbook_path = cookbook_path @cache_file = cache_file.nil? ? 'files/default/app_cache/chef_cached_app_info.json' : cache_file end
Public Instance Methods
cache_versions(origin_file)
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# File lib/chef_cached_app_info.rb, line 14 def cache_versions(origin_file) cached_app_info('app_version', origin_file) cached_app_info('cookbook_version', origin_file, ->(x) { x.gsub(/[^0-9.]/i, '') }) end
cached_app_info(key, origin_file = nil, content_lambda = ->(x) { x }
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# File lib/chef_cached_app_info.rb, line 19 def cached_app_info(key, origin_file = nil, content_lambda = ->(x) { x }) # Cache the original piece of info generated when building the app, so we have it when the app & infra are separated. write_info(key, content_lambda.call(IO.read(origin_file).strip)) if !origin_file.nil? && File.exist?(origin_file) # Cached version must always exist value = cached_app_info_object[key] raise "The cached app information stored by #{key} could not be found." if value.nil? value end
cached_app_info_file()
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# File lib/chef_cached_app_info.rb, line 28 def cached_app_info_file info_file = File.join(@cookbook_path, @cache_file) IO.write(info_file, '{}') unless File.exist?(info_file) info_file end
cached_app_info_object()
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# File lib/chef_cached_app_info.rb, line 34 def cached_app_info_object JSON.parse(File.read(cached_app_info_file)) end
write_info(key, value)
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# File lib/chef_cached_app_info.rb, line 38 def write_info(key, value) info = cached_app_info_object info[key] = value IO.write(cached_app_info_file, info.to_json) end