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-rw-r--r--actionview/lib/action_view/helpers/asset_tag_helper.rb31
-rw-r--r--actionview/lib/action_view/helpers/asset_url_helper.rb72
-rw-r--r--guides/source/asset_pipeline.md13
-rw-r--r--guides/source/configuring.md2
-rw-r--r--railties/lib/rails/generators/rails/app/templates/config/initializers/new_framework_defaults.rb.tt4
-rw-r--r--railties/test/application/asset_debugging_test.rb97
6 files changed, 199 insertions, 20 deletions
diff --git a/actionview/lib/action_view/helpers/asset_tag_helper.rb b/actionview/lib/action_view/helpers/asset_tag_helper.rb
index 6cac4bc0ad..2b9c1a8ceb 100644
--- a/actionview/lib/action_view/helpers/asset_tag_helper.rb
+++ b/actionview/lib/action_view/helpers/asset_tag_helper.rb
@@ -56,7 +56,7 @@ module ActionView
# # => <script src="http://www.example.com/xmlhr.js"></script>
def javascript_include_tag(*sources)
options = sources.extract_options!.stringify_keys
- path_options = options.extract!("protocol", "extname", "host").symbolize_keys
+ path_options = options.extract!("protocol", "extname", "host", "skip_pipeline").symbolize_keys
sources.uniq.map { |source|
tag_options = {
"src" => path_to_javascript(source, path_options)
@@ -92,8 +92,7 @@ module ActionView
# # <link href="/css/stylish.css" media="screen" rel="stylesheet" />
def stylesheet_link_tag(*sources)
options = sources.extract_options!.stringify_keys
- path_options = options.extract!("protocol", "host").symbolize_keys
-
+ path_options = options.extract!("protocol", "host", "skip_pipeline").symbolize_keys
sources.uniq.map { |source|
tag_options = {
"rel" => "stylesheet",
@@ -174,7 +173,7 @@ module ActionView
tag("link", {
rel: "shortcut icon",
type: "image/x-icon",
- href: path_to_image(source)
+ href: path_to_image(source, skip_pipeline: options.delete(:skip_pipeline))
}.merge!(options.symbolize_keys))
end
@@ -212,7 +211,7 @@ module ActionView
options = options.symbolize_keys
check_for_image_tag_errors(options)
- src = options[:src] = path_to_image(source)
+ src = options[:src] = path_to_image(source, skip_pipeline: options.delete(:skip_pipeline))
unless src.start_with?("cid:") || src.start_with?("data:") || src.blank?
options[:alt] = options.fetch(:alt) { image_alt(src) }
@@ -258,6 +257,8 @@ module ActionView
# * <tt>:size</tt> - Supplied as "{Width}x{Height}" or "{Number}", so "30x45" becomes
# width="30" and height="45", and "50" becomes width="50" and height="50".
# <tt>:size</tt> will be ignored if the value is not in the correct format.
+ # * <tt>:poster_skip_pipeline</tt> will bypass the asset pipeline when using
+ # the <tt>:poster</tt> option instead using an asset in the public folder.
#
# ==== Examples
#
@@ -269,6 +270,8 @@ module ActionView
# # => <video preload="none" controls="controls" src="/videos/trailer.ogg" ></video>
# video_tag("trailer.m4v", size: "16x10", poster: "screenshot.png")
# # => <video src="/videos/trailer.m4v" width="16" height="10" poster="/assets/screenshot.png"></video>
+ # video_tag("trailer.m4v", size: "16x10", poster: "screenshot.png", poster_skip_pipeline: true)
+ # # => <video src="/videos/trailer.m4v" width="16" height="10" poster="screenshot.png"></video>
# video_tag("/trailers/hd.avi", size: "16x16")
# # => <video src="/trailers/hd.avi" width="16" height="16"></video>
# video_tag("/trailers/hd.avi", size: "16")
@@ -282,8 +285,11 @@ module ActionView
# video_tag(["trailer.ogg", "trailer.flv"], size: "160x120")
# # => <video height="120" width="160"><source src="/videos/trailer.ogg" /><source src="/videos/trailer.flv" /></video>
def video_tag(*sources)
- multiple_sources_tag("video", sources) do |options|
- options[:poster] = path_to_image(options[:poster]) if options[:poster]
+ options = sources.extract_options!.symbolize_keys
+ public_poster_folder = options.delete(:poster_skip_pipeline)
+ sources << options
+ multiple_sources_tag_builder("video", sources) do |options|
+ options[:poster] = path_to_image(options[:poster], skip_pipeline: public_poster_folder) if options[:poster]
options[:width], options[:height] = extract_dimensions(options.delete(:size)) if options[:size]
end
end
@@ -301,22 +307,23 @@ module ActionView
# audio_tag("sound.wav", "sound.mid")
# # => <audio><source src="/audios/sound.wav" /><source src="/audios/sound.mid" /></audio>
def audio_tag(*sources)
- multiple_sources_tag("audio", sources)
+ multiple_sources_tag_builder("audio", sources)
end
private
- def multiple_sources_tag(type, sources)
- options = sources.extract_options!.symbolize_keys
+ def multiple_sources_tag_builder(type, sources)
+ options = sources.extract_options!.symbolize_keys
+ skip_pipeline = options.delete(:skip_pipeline)
sources.flatten!
yield options if block_given?
if sources.size > 1
content_tag(type, options) do
- safe_join sources.map { |source| tag("source", src: send("path_to_#{type}", source)) }
+ safe_join sources.map { |source| tag("source", src: send("path_to_#{type}", source, skip_pipeline: skip_pipeline)) }
end
else
- options[:src] = send("path_to_#{type}", sources.first)
+ options[:src] = send("path_to_#{type}", sources.first, skip_pipeline: skip_pipeline)
content_tag(type, nil, options)
end
end
diff --git a/actionview/lib/action_view/helpers/asset_url_helper.rb b/actionview/lib/action_view/helpers/asset_url_helper.rb
index 76a4893f2e..0967245855 100644
--- a/actionview/lib/action_view/helpers/asset_url_helper.rb
+++ b/actionview/lib/action_view/helpers/asset_url_helper.rb
@@ -118,16 +118,67 @@ module ActionView
module AssetUrlHelper
URI_REGEXP = %r{^[-a-z]+://|^(?:cid|data):|^//}i
- # Computes the path to asset in public directory. If :type
- # options is set, a file extension will be appended and scoped
- # to the corresponding public directory.
+ # This is the entry point for all assets.
+ # When using the asset pipeline (i.e. sprockets and sprockets-rails), the
+ # behavior is "enhanced". You can bypass the asset pipeline by passing in
+ # <tt>skip_pipeline: true</tt> to the options.
#
# All other asset *_path helpers delegate through this method.
#
- # asset_path "application.js" # => /assets/application.js
- # asset_path "application", type: :javascript # => /assets/application.js
- # asset_path "application", type: :stylesheet # => /assets/application.css
- # asset_path "http://www.example.com/js/xmlhr.js" # => http://www.example.com/js/xmlhr.js
+ # === With the asset pipeline
+ #
+ # All options passed to +asset_path+ will be passed to +compute_asset_path+
+ # which is implemented by sprockets-rails.
+ #
+ # asset_path("application.js") # => "/assets/application-60aa4fdc5cea14baf5400fba1abf4f2a46a5166bad4772b1effe341570f07de9.js"
+ #
+ # === Without the asset pipeline (<tt>skip_pipeline: true</tt>)
+ #
+ # Accepts a <tt>type</tt> option that can specify the asset's extension. No error
+ # checking is done to verify the source passed into +asset_path+ is valid
+ # and that the file exists on disk.
+ #
+ # asset_path("application.js", skip_pipeline: true) # => "application.js"
+ # asset_path("filedoesnotexist.png", skip_pipeline: true) # => "filedoesnotexist.png"
+ # asset_path("application", type: :javascript, skip_pipeline: true) # => "/javascripts/application.js"
+ # asset_path("application", type: :stylesheet, skip_pipeline: true) # => "/stylesheets/application.css"
+ #
+ # === Options applying to all assets
+ #
+ # Below lists scenarios that apply to +asset_path+ whether or not you're
+ # using the asset pipeline.
+ #
+ # - All fully qualified urls are returned immediately. This bypasses the
+ # asset pipeline and all other behavior described.
+ #
+ # asset_path("http://www.example.com/js/xmlhr.js") # => "http://www.example.com/js/xmlhr.js"
+ #
+ # - All assets that begin with a forward slash are assumed to be full
+ # urls and will not be expanded. This will bypass the asset pipeline.
+ #
+ # asset_path("/foo.png") # => "/foo.png"
+ #
+ # - All blank strings will be returned immediately. This bypasses the
+ # asset pipeline and all other behavior described.
+ #
+ # asset_path("") # => ""
+ #
+ # - If <tt>config.relative_url_root</tt> is specified, all assets will have that
+ # root prepended.
+ #
+ # Rails.application.config.relative_url_root = "bar"
+ # asset_path("foo.js", skip_pipeline: true) # => "bar/foo.js"
+ #
+ # - A different asset host can be specified via <tt>config.action_controller.asset_host</tt>
+ # this is commonly used in conjunction with a CDN.
+ #
+ # Rails.application.config.action_controller.asset_host = "assets.example.com"
+ # asset_path("foo.js", skip_pipeline: true) # => "http://assets.example.com/foo.js"
+ #
+ # - An extension name can be specified manually with <tt>extname</tt>.
+ #
+ # asset_path("foo", skip_pipeline: true, extname: ".js") # => "/foo.js"
+ # asset_path("foo.css", skip_pipeline: true, extname: ".js") # => "/foo.css.js"
def asset_path(source, options = {})
raise ArgumentError, "nil is not a valid asset source" if source.nil?
@@ -142,7 +193,11 @@ module ActionView
end
if source[0] != ?/
- source = compute_asset_path(source, options)
+ if options[:skip_pipeline]
+ source = public_compute_asset_path(source, options)
+ else
+ source = compute_asset_path(source, options)
+ end
end
relative_url_root = defined?(config.relative_url_root) && config.relative_url_root
@@ -203,6 +258,7 @@ module ActionView
dir = ASSET_PUBLIC_DIRECTORIES[options[:type]] || ""
File.join(dir, source)
end
+ alias :public_compute_asset_path :compute_asset_path
# Pick an asset host for this source. Returns +nil+ if no host is set,
# the host if no wildcard is set, the host interpolated with the
diff --git a/guides/source/asset_pipeline.md b/guides/source/asset_pipeline.md
index 701304acde..41dfeea84d 100644
--- a/guides/source/asset_pipeline.md
+++ b/guides/source/asset_pipeline.md
@@ -586,6 +586,19 @@ in your application are included in the `config.assets.precompile` list.
If `config.assets.digest` is also true, the asset pipeline will require that
all requests for assets include digests.
+### Raise an Error When an Asset is Not Found
+
+If you are using sprockets-rails >= 3.2.0 you can configure what happens
+when an asset lookup is performed and nothing is found. If you turn off "asset fallback"
+then an error will be raised when an asset cannot be found.
+
+```ruby
+config.assets.unknown_asset_fallback = false
+```
+
+If "asset fallback" is enabled then when an asset cannot be found the path will be
+output instead and no error raised. The asset fallback behavior is enabled by default.
+
### Turning Digests Off
You can turn off digests by updating `config/environments/development.rb` to
diff --git a/guides/source/configuring.md b/guides/source/configuring.md
index c938edd8f7..a115683134 100644
--- a/guides/source/configuring.md
+++ b/guides/source/configuring.md
@@ -169,6 +169,8 @@ pipeline is enabled. It is set to `true` by default.
* `config.assets.precompile` allows you to specify additional assets (other than `application.css` and `application.js`) which are to be precompiled when `rake assets:precompile` is run.
+* `config.assets.unknown_asset_fallback` allows you to modify the behavior of the asset pipeline when an asset is not in the pipeline, if you use sprockets-rails 3.2.0 or newer. Defaults to `true`.
+
* `config.assets.prefix` defines the prefix where assets are served from. Defaults to `/assets`.
* `config.assets.manifest` defines the full path to be used for the asset precompiler's manifest file. Defaults to a file named `manifest-<random>.json` in the `config.assets.prefix` directory within the public folder.
diff --git a/railties/lib/rails/generators/rails/app/templates/config/initializers/new_framework_defaults.rb.tt b/railties/lib/rails/generators/rails/app/templates/config/initializers/new_framework_defaults.rb.tt
index e539f4c457..5ad18cc5ad 100644
--- a/railties/lib/rails/generators/rails/app/templates/config/initializers/new_framework_defaults.rb.tt
+++ b/railties/lib/rails/generators/rails/app/templates/config/initializers/new_framework_defaults.rb.tt
@@ -32,3 +32,7 @@ ActiveSupport.halt_callback_chains_on_return_false = <%= options[:update] ? true
# Configure SSL options to enable HSTS with subdomains. Previous versions had false.
Rails.application.config.ssl_options = { hsts: { subdomains: true } }
<%- end -%>
+
+# Unknown asset fallback will return the path passed in when the given
+# asset is not present in the asset pipeline.
+Rails.application.config.assets.unknown_asset_fallback = <%= options[:update] ? true : false %>
diff --git a/railties/test/application/asset_debugging_test.rb b/railties/test/application/asset_debugging_test.rb
index a732869d62..3e17a1efa5 100644
--- a/railties/test/application/asset_debugging_test.rb
+++ b/railties/test/application/asset_debugging_test.rb
@@ -68,5 +68,102 @@ module ApplicationTests
assert_match(/<script src="\/assets\/application(\.self)?-([0-z]+)\.js\?body=1"><\/script>/, last_response.body)
assert_match(/<script src="\/assets\/xmlhr(\.self)?-([0-z]+)\.js\?body=1"><\/script>/, last_response.body)
end
+
+ test "public path and tag methods are not over-written by the asset pipeline" do
+ contents = "doesnotexist"
+ cases = {
+ asset_path: %r{/#{contents}},
+ image_path: %r{/images/#{contents}},
+ video_path: %r{/videos/#{contents}},
+ audio_path: %r{/audios/#{contents}},
+ font_path: %r{/fonts/#{contents}},
+ javascript_path: %r{/javascripts/#{contents}},
+ stylesheet_path: %r{/stylesheets/#{contents}},
+ image_tag: %r{<img src="/images/#{contents}"},
+ favicon_link_tag: %r{<link rel="shortcut icon" type="image/x-icon" href="/images/#{contents}" />},
+ stylesheet_link_tag: %r{<link rel="stylesheet" media="screen" href="/stylesheets/#{contents}.css" />},
+ javascript_include_tag: %r{<script src="/javascripts/#{contents}.js">},
+ audio_tag: %r{<audio src="/audios/#{contents}"></audio>},
+ video_tag: %r{<video src="/videos/#{contents}"></video>}
+ }
+
+ cases.each do |(view_method, tag_match)|
+ app_file "app/views/posts/index.html.erb", "<%= #{view_method} '#{contents}', skip_pipeline: true %>"
+
+ app "development"
+
+ class ::PostsController < ActionController::Base ; end
+
+ get "/posts?debug_assets=true"
+
+ body = last_response.body
+ assert_match(tag_match, body, "Expected `#{view_method}` to produce a match to #{tag_match}, but did not: #{body}")
+ end
+ end
+
+ test "public url methods are not over-written by the asset pipeline" do
+ contents = "doesnotexist"
+ cases = {
+ asset_url: %r{http://example.org/#{contents}},
+ image_url: %r{http://example.org/images/#{contents}},
+ video_url: %r{http://example.org/videos/#{contents}},
+ audio_url: %r{http://example.org/audios/#{contents}},
+ font_url: %r{http://example.org/fonts/#{contents}},
+ javascript_url: %r{http://example.org/javascripts/#{contents}},
+ stylesheet_url: %r{http://example.org/stylesheets/#{contents}},
+ }
+
+ cases.each do |(view_method, tag_match)|
+ app_file "app/views/posts/index.html.erb", "<%= #{view_method} '#{contents}', skip_pipeline: true %>"
+
+ app "development"
+
+ class ::PostsController < ActionController::Base ; end
+
+ get "/posts?debug_assets=true"
+
+ body = last_response.body
+ assert_match(tag_match, body, "Expected `#{view_method}` to produce a match to #{tag_match}, but did not: #{body}")
+ end
+ end
+
+ test "{ skip_pipeline: true } does not use the asset pipeline" do
+ cases = {
+ /\/assets\/application-.*.\.js/ => {},
+ /application.js/ => { skip_pipeline: true },
+ }
+ cases.each do |(tag_match, options_hash)|
+ app_file "app/views/posts/index.html.erb", "<%= asset_path('application.js', #{options_hash}) %>"
+
+ app "development"
+
+ class ::PostsController < ActionController::Base ; end
+
+ get "/posts?debug_assets=true"
+
+ body = last_response.body.strip
+ assert_match(tag_match, body, "Expected `asset_path` with `#{options_hash}` to produce a match to #{tag_match}, but did not: #{body}")
+ end
+ end
+
+ test "public_compute_asset_path does not use the asset pipeline" do
+ cases = {
+ compute_asset_path: /\/assets\/application-.*.\.js/,
+ public_compute_asset_path: /application.js/,
+ }
+
+ cases.each do |(view_method, tag_match)|
+ app_file "app/views/posts/index.html.erb", "<%= #{ view_method } 'application.js' %>"
+
+ app "development"
+
+ class ::PostsController < ActionController::Base ; end
+
+ get "/posts?debug_assets=true"
+
+ body = last_response.body.strip
+ assert_match(tag_match, body, "Expected `#{view_method}` to produce a match to #{ tag_match }, but did not: #{ body }")
+ end
+ end
end
end