Class: Middleman::Extensions::MinifyJavascript::Rack
- Inherits:
-
Object
- Object
- Middleman::Extensions::MinifyJavascript::Rack
- Defined in:
- lib/middleman-more/extensions/minify_javascript.rb
Overview
Rack middleware to look for JS and compress it
Instance Method Summary collapse
-
#call(env) ⇒ Array
Rack interface.
-
#initialize(app, options = {}) ⇒ Rack
constructor
Init.
Constructor Details
#initialize(app, options = {}) ⇒ Rack
Init
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# File 'lib/middleman-more/extensions/minify_javascript.rb', line 40 def initialize(app, ={}) @app = app @compressor = [:compressor] @ignore = [:ignore] @inline = [:inline] end |
Instance Method Details
#call(env) ⇒ Array
Rack interface
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# File 'lib/middleman-more/extensions/minify_javascript.rb', line 50 def call(env) status, headers, response = @app.call(env) path = env["PATH_INFO"] begin if (path.end_with?('.html') || path.end_with?('.php')) && @inline uncompressed_source = ::Middleman::Util.extract_response_text(response) minified = uncompressed_source.gsub(/(<script[^>]*>\s*(?:\/\/(?:(?:<!--)|(?:<!\[CDATA\[))\n)?)(.*?)((?:(?:\n\s*)?\/\/(?:(?:-->)|(?:\]\]>)))?\s*<\/script>)/m) do |match| first = $1 javascript = $2 last = $3 # 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) first << minified_js << last else match end end 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_js = @compressor.compress(uncompressed_source) headers["Content-Length"] = ::Rack::Utils.bytesize(minified_js).to_s response = [minified_js] end rescue ExecJS::ProgramError => e warn "WARNING: Couldn't compress JavaScript in #{path}: #{e.}" end [status, headers, response] end |