diff options
Diffstat (limited to 'actionpack/lib/action_view')
5 files changed, 94 insertions, 27 deletions
diff --git a/actionpack/lib/action_view/asset_paths.rb b/actionpack/lib/action_view/asset_paths.rb index 4ce41d51f1..81880d17ea 100644 --- a/actionpack/lib/action_view/asset_paths.rb +++ b/actionpack/lib/action_view/asset_paths.rb @@ -35,7 +35,13 @@ module ActionView # Return the filesystem path for the source def compute_source_path(source, dir, ext) source = rewrite_extension(source, dir, ext) if ext - File.join(config.assets_dir, dir, source) + + sources = [] + sources << config.assets_dir + sources << dir unless source[0] == ?/ + sources << source + + File.join(sources) end def is_uri?(path) diff --git a/actionpack/lib/action_view/helpers/asset_tag_helpers/asset_include_tag.rb b/actionpack/lib/action_view/helpers/asset_tag_helpers/asset_include_tag.rb index 05d5f1870a..1a54ca2399 100644 --- a/actionpack/lib/action_view/helpers/asset_tag_helpers/asset_include_tag.rb +++ b/actionpack/lib/action_view/helpers/asset_tag_helpers/asset_include_tag.rb @@ -7,7 +7,7 @@ module ActionView module Helpers module AssetTagHelper - class AssetIncludeTag + class AssetIncludeTag #:nodoc: include TagHelper attr_reader :config, :asset_paths diff --git a/actionpack/lib/action_view/helpers/asset_tag_helpers/javascript_tag_helpers.rb b/actionpack/lib/action_view/helpers/asset_tag_helpers/javascript_tag_helpers.rb index 4292d29f60..e0dbfe62c6 100644 --- a/actionpack/lib/action_view/helpers/asset_tag_helpers/javascript_tag_helpers.rb +++ b/actionpack/lib/action_view/helpers/asset_tag_helpers/javascript_tag_helpers.rb @@ -6,7 +6,7 @@ module ActionView module Helpers module AssetTagHelper - class JavascriptIncludeTag < AssetIncludeTag + class JavascriptIncludeTag < AssetIncludeTag #:nodoc: def asset_name 'javascript' end diff --git a/actionpack/lib/action_view/helpers/asset_tag_helpers/stylesheet_tag_helpers.rb b/actionpack/lib/action_view/helpers/asset_tag_helpers/stylesheet_tag_helpers.rb index 57b0627225..91318b2812 100644 --- a/actionpack/lib/action_view/helpers/asset_tag_helpers/stylesheet_tag_helpers.rb +++ b/actionpack/lib/action_view/helpers/asset_tag_helpers/stylesheet_tag_helpers.rb @@ -6,7 +6,7 @@ module ActionView module Helpers module AssetTagHelper - class StylesheetIncludeTag < AssetIncludeTag + class StylesheetIncludeTag < AssetIncludeTag #:nodoc: def asset_name 'stylesheet' end @@ -53,7 +53,7 @@ module ActionView # If the +source+ filename has no extension, <tt>.css</tt> will be appended (except for explicit URIs). # Full paths from the document root will be passed through. # Used internally by +stylesheet_link_tag+ to build the stylesheet path. - # + # # stylesheet_path "style" # => /stylesheets/style.css # stylesheet_path "dir/style.css" # => /stylesheets/dir/style.css # stylesheet_path "/dir/style.css" # => /dir/style.css diff --git a/actionpack/lib/action_view/template/resolver.rb b/actionpack/lib/action_view/template/resolver.rb index fa2038f78d..2bb656fac9 100644 --- a/actionpack/lib/action_view/template/resolver.rb +++ b/actionpack/lib/action_view/template/resolver.rb @@ -2,12 +2,14 @@ require "pathname" require "active_support/core_ext/class" require "active_support/core_ext/class/attribute_accessors" require "action_view/template" +require "thread" +require "mutex_m" module ActionView # = Action View Resolver class Resolver # Keeps all information about view path and builds virtual path. - class Path < String + class Path attr_reader :name, :prefix, :partial, :virtual alias_method :partial?, :partial @@ -19,8 +21,77 @@ module ActionView end def initialize(name, prefix, partial, virtual) - @name, @prefix, @partial = name, prefix, partial - super(virtual) + @name = name + @prefix = prefix + @partial = partial + @virtual = virtual + end + + def to_str + @virtual + end + alias :to_s :to_str + end + + # Threadsafe template cache + class Cache #:nodoc: + class CacheEntry + include Mutex_m + + attr_accessor :templates + end + + def initialize + @data = Hash.new { |h1,k1| h1[k1] = Hash.new { |h2,k2| + h2[k2] = Hash.new { |h3,k3| h3[k3] = Hash.new { |h4,k4| h4[k4] = {} } } } } + @mutex = Mutex.new + end + + # Cache the templates returned by the block + def cache(key, name, prefix, partial, locals) + cache_entry = nil + + # first obtain a lock on the main data structure to create the cache entry + @mutex.synchronize do + cache_entry = @data[key][name][prefix][partial][locals] ||= CacheEntry.new + end + + # then to avoid a long lasting global lock, obtain a more granular lock + # on the CacheEntry itself + cache_entry.synchronize do + if Resolver.caching? + cache_entry.templates ||= yield + else + fresh_templates = yield + + if templates_have_changed?(cache_entry.templates, fresh_templates) + cache_entry.templates = fresh_templates + else + cache_entry.templates ||= [] + end + end + end + end + + def clear + @mutex.synchronize do + @data.clear + end + end + + private + + def templates_have_changed?(cached_templates, fresh_templates) + # if either the old or new template list is empty, we don't need to (and can't) + # compare modification times, and instead just check whether the lists are different + if cached_templates.blank? || fresh_templates.blank? + return fresh_templates.blank? != cached_templates.blank? + end + + cached_templates_max_updated_at = cached_templates.map(&:updated_at).max + + # if a template has changed, it will be now be newer than all the cached templates + fresh_templates.any? { |t| t.updated_at > cached_templates_max_updated_at } end end @@ -32,12 +103,11 @@ module ActionView end def initialize - @cached = Hash.new { |h1,k1| h1[k1] = Hash.new { |h2,k2| - h2[k2] = Hash.new { |h3,k3| h3[k3] = Hash.new { |h4,k4| h4[k4] = {} } } } } + @cache = Cache.new end def clear_cache - @cached.clear + @cache.clear end # Normalizes the arguments and passes it on to find_template. @@ -65,27 +135,18 @@ module ActionView # Handles templates caching. If a key is given and caching is on # always check the cache before hitting the resolver. Otherwise, - # it always hits the resolver but check if the resolver is fresher - # before returning it. + # it always hits the resolver but if the key is present, check if the + # resolver is fresher before returning it. def cached(key, path_info, details, locals) #:nodoc: name, prefix, partial = path_info locals = locals.map { |x| x.to_s }.sort! - if key && caching? - @cached[key][name][prefix][partial][locals] ||= decorate(yield, path_info, details, locals) - else - fresh = decorate(yield, path_info, details, locals) - return fresh unless key - - scope = @cached[key][name][prefix][partial] - cache = scope[locals] - mtime = cache && cache.map(&:updated_at).max - - if !mtime || fresh.empty? || fresh.any? { |t| t.updated_at > mtime } - scope[locals] = fresh - else - cache + if key + @cache.cache(key, name, prefix, partial, locals) do + decorate(yield, path_info, details, locals) end + else + decorate(yield, path_info, details, locals) end end |