Use configurable content type for detection of minifiable content.

Squashed changes:

  - Prevent side effects of content type testing.
  - Test for inline minification in PHP files.

middleman-core/features/content_type.feature

@@ -12,6 +12,8 @@ Feature: Setting the right content type for files
     Then the content type should be "text/css"
     When I go to "/README"
     Then the content type should be "text/plain"
+    When I go to "/index.php"
+    Then the content type should be "text/php"
 
   Scenario: Content type can be set explicitly via page or proxy or frontmatter
     Given a fixture app "content-type-app"
@@ -31,6 +33,7 @@ Feature: Setting the right content type for files
     When I go to "/override.html"
     Then the content type should be "text/neato"
 
+  @preserve_mime_types
   Scenario: Content types can be overridden with mime_type
     Given a fixture app "content-type-app"
     And a file named "config.rb" with:

middleman-core/features/minify_css.feature

@@ -26,6 +26,18 @@ Feature: Minify CSS
     When I go to "/stylesheets/report.css"
     Then I should see "p{border:1px solid #ff6600}"
     
+  Scenario: Rendering external css in a proxied resource
+    Given a fixture app "minify-css-app"
+    And a file named "config.rb" with:
+      """
+      activate :minify_css
+      proxy '/css-proxy', '/stylesheets/site.css', ignore: true
+      """
+    And the Server is running at "minify-css-app"
+    When I go to "/css-proxy"
+    Then I should see "1" lines
+    And I should see "only screen and (device-width"
+
   Scenario: Rendering external css with passthrough compressor
     Given a fixture app "passthrough-app"
     And a file named "config.rb" with:
@@ -124,4 +136,54 @@ Feature: Minify CSS
     <style>
       body{test:style;good:deal}
     </style>
-    """
+    """
+
+  Scenario: Rendering inline css in a PHP document
+    Given a fixture app "minify-css-app"
+    And a file named "config.rb" with:
+      """
+      activate :minify_css, :inline => true
+      """
+    And the Server is running at "minify-css-app"
+    When I go to "/inline-css.php"
+    Then I should see:
+    """
+    <?='Hello'?>
+
+    <style>
+      body{test:style;good:deal}
+    </style>
+    """
+
+  Scenario: Rendering inline css in a proxied resource
+    Given a fixture app "minify-css-app"
+    And a file named "config.rb" with:
+      """
+      activate :minify_css, :inline => true
+      proxy '/inline-css-proxy', '/inline-css.html', ignore: true
+      """
+    And the Server is running at "minify-css-app"
+    When I go to "/inline-css-proxy"
+    Then I should see:
+    """
+    <style>
+      body{test:style;good:deal}
+    </style>
+    """
+
+  @preserve_mime_types
+  Scenario: Configuring content types of resources to be minified
+    Given a fixture app "minify-css-app"
+    And a file named "config.rb" with:
+      """
+      mime_type('.xcss', 'text/x-css')
+      activate :minify_css, content_types: ['text/x-css'],
+                            inline: true,
+                            inline_content_types: ['text/html']
+      """
+    And the Server is running at "minify-css-app"
+    When I go to "/stylesheets/site.xcss"
+    Then I should see "1" lines
+    And I should see "only screen and (device-width"
+    When I go to "/inline-css.php"
+    Then I should see "8" lines

middleman-core/features/minify_javascript.feature

@@ -88,7 +88,7 @@ Feature: Minify Javascript
     </script>
     """
 
-  Scenario: Rendering inline css with a passthrough minifier using activate-style compressor
+  Scenario: Rendering inline JS with a passthrough minifier using activate-style compressor
     Given a fixture app "passthrough-app"
     And a file named "config.rb" with:
       """
@@ -148,6 +148,42 @@ Feature: Minify Javascript
     </script>
     """
 
+  Scenario: Rendering inline js in a PHP document
+    Given a fixture app "minify-js-app"
+    And a file named "config.rb" with:
+      """
+      activate :minify_javascript, :inline => true
+      """
+    And the Server is running at "minify-js-app"
+    When I go to "/inline-js.php"
+    Then I should see:
+    """
+    <?='Hello'?>
+
+    <script>
+      !function(){should(),all.be(),on={one:line}}();
+    </script>
+    <script type='text/javascript'>
+      //<!--
+    !function(){one,line(),here()}();
+      //-->
+    </script>
+    <script type='text/html'>
+      I'm a jQuery {{template}}.
+    </script>
+    """
+
+  Scenario: Rendering inline js in a proxied resource
+    Given a fixture app "minify-js-app"
+    And a file named "config.rb" with:
+      """
+      activate :minify_javascript, :inline => true
+      proxy '/inline-js-proxy', '/inline-js.html', ignore: true
+      """
+    And the Server is running at "minify-js-app"
+    When I go to "/inline-js-proxy"
+    Then I should see "14" lines
+
   Scenario: Rendering external js with the feature enabled
     Given a fixture app "minify-js-app"
     And a file named "config.rb" with:
@@ -160,6 +196,17 @@ Feature: Minify Javascript
     When I go to "/more-js/other.js"
     Then I should see "1" lines
     
+  Scenario: Rendering external js in a proxied resource
+    Given a fixture app "minify-js-app"
+    And a file named "config.rb" with:
+      """
+      activate :minify_javascript
+      proxy '/js-proxy', '/javascripts/js_test.js', ignore: true
+      """
+    And the Server is running at "minify-js-app"
+    When I go to "/js-proxy"
+    Then I should see "1" lines
+
   Scenario: Rendering external js with a passthrough minifier
     And the Server is running at "passthrough-app"
     When I go to "/javascripts/js_test.js"

middleman-core/features/support/preserve_mime_types.rb

@@ -0,0 +1,7 @@
+Around('@preserve_mime_types') do |_scenario, block|
+  mime_types = ::Rack::Mime::MIME_TYPES.clone
+
+  block.call
+
+  ::Rack::Mime::MIME_TYPES.replace mime_types
+end

middleman-core/fixtures/content-type-app/source/index.php

@@ -0,0 +1 @@
+<?="I'm a PHP file!"?>

middleman-core/fixtures/minify-css-app/source/inline-css.php

@@ -0,0 +1,8 @@
+<?='Hello'?>
+
+<style>
+  body {
+    test: style;
+    good: deal;
+  }
+</style>

middleman-core/fixtures/minify-css-app/source/stylesheets/site.xcss.sass

@@ -0,0 +1,5 @@
+@import "compass/reset"
+
+@media handheld, only screen and (device-width: 768px)
+  body
+    display: block

middleman-core/fixtures/minify-js-app/source/inline-js.php

@@ -0,0 +1,22 @@
+<?='Hello'?>
+
+<script>
+  ;(function() {
+    this;
+    should();
+    all.be();
+    on = { one: line };
+  })();
+</script>
+<script type='text/javascript'>
+  //<!--
+  ;(function() {
+    one;
+    line();
+    here();
+  })();
+  //-->
+</script>
+<script type='text/html'>
+  I'm a jQuery {{template}}.
+</script>

middleman-core/fixtures/minify-js-app/source/javascripts/js_test.xjs

@@ -0,0 +1,8 @@
+var race;
+var __slice = Array.prototype.slice;
+
+race = function() {
+  var runners, winner;
+  winner = arguments[0], runners = 2 <= arguments.length ? __slice.call(arguments, 1) : [];
+  return print(winner, runners);
+};

middleman-core/lib/middleman-core/core_extensions/request.rb

@@ -24,6 +24,9 @@ module Middleman
           # Sourcemap format
           ::Rack::Mime::MIME_TYPES['.map'] = 'application/json; charset=utf-8'
 
+          # Create a MIME type for PHP files (for detection by extensions)
+          ::Rack::Mime::MIME_TYPES['.php'] = 'text/php'
+
           app.extend ClassMethods
           app.extend ServerMethods
 

middleman-core/lib/middleman-more/extensions/minify_css.rb

@@ -3,6 +3,8 @@ class Middleman::Extensions::MinifyCss < ::Middleman::Extension
   option :compressor, nil, 'Set the CSS compressor to use.'
   option :inline, false, 'Whether to minify CSS inline within HTML files'
   option :ignore, [], 'Patterns to avoid minifying'
+  option :content_types, %w(text/css), 'Content types of resources that contain CSS'
+  option :inline_content_types, %w(text/html text/php), 'Content types of resources that contain inline CSS'
 
   def initialize(app, options_hash={}, &block)
     super
@@ -16,7 +18,9 @@ class Middleman::Extensions::MinifyCss < ::Middleman::Extension
     # Setup Rack middleware to minify CSS
     app.use Rack, compressor: chosen_compressor,
                   ignore: Array(options[:ignore]) + [/\.min\./],
-                  inline: options[:inline]
+                  inline: options[:inline],
+                  content_types: options[:content_types],
+                  inline_content_types: options[:inline_content_types]
   end
 
   class SassCompressor
@@ -39,6 +43,8 @@ class Middleman::Extensions::MinifyCss < ::Middleman::Extension
       @compressor = options[:compressor]
       @ignore = options[:ignore]
       @inline = options[:inline]
+      @content_types = options[:content_types]
+      @inline_content_types = options[:inline_content_types]
     end
 
     # Rack interface
@@ -47,19 +53,18 @@ class Middleman::Extensions::MinifyCss < ::Middleman::Extension
     def call(env)
       status, headers, response = @app.call(env)
 
-      if inline_html_content?(env['PATH_INFO'])
-        minified = ::Middleman::Util.extract_response_text(response)
-        minified.gsub!(INLINE_CSS_REGEX) do
-          $1 << @compressor.compress($2) << $3
-        end
+      content_type = headers['Content-Type'].try(:slice, /^[^;]*/)
+      path = env['PATH_INFO']
 
+      minified = if @inline && minifiable_inline?(content_type)
+        minify_inline(::Middleman::Util.extract_response_text(response))
+      elsif minifiable?(content_type) && !ignore?(path)
+        minify(::Middleman::Util.extract_response_text(response))
+      end
+
+      if minified
         headers['Content-Length'] = ::Rack::Utils.bytesize(minified).to_s
         response = [minified]
-      elsif standalone_css_content?(env['PATH_INFO'])
-        minified_css = @compressor.compress(::Middleman::Util.extract_response_text(response))
-
-        headers['Content-Length'] = ::Rack::Utils.bytesize(minified_css).to_s
-        response = [minified_css]
       end
 
       [status, headers, response]
@@ -67,12 +72,41 @@ class Middleman::Extensions::MinifyCss < ::Middleman::Extension
 
     private
 
-    def inline_html_content?(path)
-      (path.end_with?('.html') || path.end_with?('.php')) && @inline
+    # Whether the path should be ignored
+    # @param [String] path
+    # @return [Boolean]
+    def ignore?(path)
+      @ignore.any? { |ignore| Middleman::Util.path_match(ignore, path) }
     end
 
-    def standalone_css_content?(path)
-      path.end_with?('.css') && @ignore.none? { |ignore| Middleman::Util.path_match(ignore, path) }
+    # Whether this type of content can be minified
+    # @param [String, nil] content_type
+    # @return [Boolean]
+    def minifiable?(content_type)
+      @content_types.include?(content_type)
+    end
+
+    # Whether this type of content contains inline content that can be minified
+    # @param [String, nil] content_type
+    # @return [Boolean]
+    def minifiable_inline?(content_type)
+      @inline_content_types.include?(content_type)
+    end
+
+    # Minify the content
+    # @param [String] content
+    # @return [String]
+    def minify(content)
+      @compressor.compress(content)
+    end
+
+    # Detect and minify inline content
+    # @param [String] content
+    # @return [String]
+    def minify_inline(content)
+      content.gsub(INLINE_CSS_REGEX) do
+        $1 + minify($2) + $3
+      end
     end
   end
 end

middleman-core/lib/middleman-more/extensions/minify_javascript.rb

@@ -3,6 +3,8 @@ class Middleman::Extensions::MinifyJavascript < ::Middleman::Extension
   option :compressor, nil, 'Set the JS compressor to use.'
   option :inline, false, 'Whether to minify JS inline within HTML files'
   option :ignore, [], 'Patterns to avoid minifying'
+  option :content_types, %w(application/javascript), 'Content types of resources that contain JS'
+  option :inline_content_types, %w(text/html text/php), 'Content types of resources that contain inline JS'
 
   def initialize(app, options_hash={}, &block)
     super
@@ -16,14 +18,18 @@ class Middleman::Extensions::MinifyJavascript < ::Middleman::Extension
       ::Uglifier.new
     end
 
-    # Setup Rack middleware to minify CSS
+    # Setup Rack middleware to minify JS
     app.use Rack, compressor: chosen_compressor,
                   ignore: Array(options[:ignore]) + [/\.min\./],
-                  inline: options[:inline]
+                  inline: options[:inline],
+                  content_types: options[:content_types],
+                  inline_content_types: options[:inline_content_types]
   end
 
   # Rack middleware to look for JS and compress it
   class Rack
+    INLINE_JS_REGEX = /(<script[^>]*>\s*(?:\/\/(?:(?:<!--)|(?:<!\[CDATA\[))\n)?)(.*?)((?:(?:\n\s*)?\/\/(?:(?:-->)|(?:\]\]>)))?\s*<\/script>)/m
+
     # Init
     # @param [Class] app
     # @param [Hash] options
@@ -32,6 +38,8 @@ class Middleman::Extensions::MinifyJavascript < ::Middleman::Extension
       @compressor = options[:compressor]
       @ignore = options[:ignore]
       @inline = options[:inline]
+      @content_types = options[:content_types]
+      @inline_content_types = options[:inline_content_types]
     end
 
     # Rack interface
@@ -40,25 +48,18 @@ class Middleman::Extensions::MinifyJavascript < ::Middleman::Extension
     def call(env)
       status, headers, response = @app.call(env)
 
+      type = headers['Content-Type'].try(:slice, /^[^;]*/)
       path = env['PATH_INFO']
 
-      begin
-        if @inline && (path.end_with?('.html') || path.end_with?('.php'))
-          uncompressed_source = ::Middleman::Util.extract_response_text(response)
+      minified = if @inline && minifiable_inline?(type)
+        minify_inline(::Middleman::Util.extract_response_text(response))
+      elsif minifiable?(type) && !ignore?(path)
+        minify(::Middleman::Util.extract_response_text(response))
+      end
 
-          minified = minify_inline_content(uncompressed_source)
-
-          headers['Content-Length'] = ::Rack::Utils.bytesize(minified).to_s
-          response = [minified]
-        elsif path.end_with?('.js') && @ignore.none? { |ignore| Middleman::Util.path_match(ignore, path) }
-          uncompressed_source = ::Middleman::Util.extract_response_text(response)
-          minified = @compressor.compress(uncompressed_source)
-
-          headers['Content-Length'] = ::Rack::Utils.bytesize(minified).to_s
-          response = [minified]
-        end
-      rescue ExecJS::ProgramError => e
-        warn "WARNING: Couldn't compress JavaScript in #{path}: #{e.message}"
+      if minified
+        headers['Content-Length'] = ::Rack::Utils.bytesize(minified).to_s
+        response = [minified]
       end
 
       [status, headers, response]
@@ -66,19 +67,48 @@ class Middleman::Extensions::MinifyJavascript < ::Middleman::Extension
 
     private
 
-    def minify_inline_content(uncompressed_source)
-      uncompressed_source.gsub(/(<script[^>]*>\s*(?:\/\/(?:(?:<!--)|(?:<!\[CDATA\[))\n)?)(.*?)((?:(?:\n\s*)?\/\/(?:(?:-->)|(?:\]\]>)))?\s*<\/script>)/m) do |match|
-        first = $1
-        javascript = $2
-        last = $3
+    # Whether the path should be ignored
+    # @param [String] path
+    # @return [Boolean]
+    def ignore?(path)
+      @ignore.any? { |ignore| Middleman::Util.path_match(ignore, path) }
+    end
 
-        # Only compress script tags that contain JavaScript (as opposed
-        # to something like jQuery templates, identified with a "text/html"
-        # type.
-        if first =~ /<script>/ || first.include?('text/javascript')
-          minified_js = @compressor.compress(javascript)
+    # Whether this type of content can be minified
+    # @param [String, nil] content_type
+    # @return [Boolean]
+    def minifiable?(content_type)
+      @content_types.include?(content_type)
+    end
 
-          first << minified_js << last
+    # Whether this type of content contains inline content that can be minified
+    # @param [String, nil] content_type
+    # @return [Boolean]
+    def minifiable_inline?(content_type)
+      @inline_content_types.include?(content_type)
+    end
+
+    # Minify the content
+    # @param [String] content
+    # @return [String]
+    def minify(content)
+      @compressor.compress(content)
+    rescue ExecJS::ProgramError => e
+      warn "WARNING: Couldn't compress JavaScript in #{path}: #{e.message}"
+      content
+    end
+
+    # Detect and minify inline content
+    # @param [String] content
+    # @return [String]
+    def minify_inline(content)
+      content.gsub(INLINE_JS_REGEX) do |match|
+        first, inline_content, last = $1, $2, $3
+
+        # Only compress script tags that contain JavaScript (as opposed to
+        # something like jQuery templates, identified with a "text/html" type).
+        if first.include?('<script>') || first.include?('text/javascript')
+          first + minify(inline_content) + last
         else
           match
         end