js_generator.rb in amazon-chime-sdk-rails-1.1.0

- old
+ new

@@ -2,26 +2,35 @@
 
 module ChimeSdk
   module Generators
     # Amazon Chime SDK single .js file generator.
     # Bundle Amazon Chime SDK into single amazon-chime-sdk.min.js file and copy it to app/assets/javascripts directory.
-    # @example Run Amazon Chime SDK single .js file generator
+    # @example Run Amazon Chime SDK single .js file generator with the latest version from master branch
     #   rails generate chime_sdk:js
-    # @see https://github.com/aws/amazon-chime-sdk-js/tree/master/demos/singlejs
+    # @example Run Amazon Chime SDK single .js file generator with specified version
+    #   rails generate chime_sdk:js 2.24.0
+    # @see https://github.com/aws-samples/amazon-chime-sdk/tree/main/utils/singlejs
+    # @see https://www.npmjs.com/package/amazon-chime-sdk-js
     class JsGenerator < Rails::Generators::Base
       desc <<-DESC.strip_heredoc
         Bundle Amazon Chime SDK into single amazon-chime-sdk.min.js file and copy it to app/assets/javascripts directory.
 
         Example:
 
           rails generate chime_sdk:js
 
+        You can also specify version of amazon-chime-sdk-js like this:
+
+          rails generate chime_sdk:js 2.24.0
+
         This generator requires npm installation.
 
       DESC
 
       source_root File.expand_path('./')
+      argument :version, required: false,
+        desc: "Specific version of amazon-chime-sdk-js, e.g. 2.24.0"
 
       # Build amazon-chime-sdk.min.js and copy it to app/assets/javascripts directory
       def build_and_copy_chime_sdk_js
         # :nocov:
         begin
@@ -46,20 +55,74 @@
           puts "Amazon Chime SDK single .js file generator requires npm. Install npm before running."
           return
         end
         # :nocov:
 
-        `mkdir -p tmp`
+        if version.present?
+          begin
+            sdk_version = Gem::Version.new(version)
+            # https://www.npmjs.com/package/amazon-chime-sdk-js
+            if sdk_version < Gem::Version.new("1.0.0")
+              puts "[Abort] Specify 1.0.0 or later as amazon-chime-sdk-js version"
+              exit
+            else
+              version_tag = "amazon-chime-sdk-js@#{sdk_version}"
+            end
+          rescue StandardError => e
+            puts "[Abort] Wrong amazon-chime-sdk-js version was specified"
+            exit
+          end
+        end
+
+        system "mkdir -p tmp"
         puts "Cloning into 'amazon-chime-sdk-js' git repository in tmp directory ..."
-        `cd tmp; git clone https://github.com/aws/amazon-chime-sdk-js.git > /dev/null 2>&1`
+        system "cd tmp; git clone https://github.com/aws-samples/amazon-chime-sdk.git > /dev/null 2>&1"
+        repository_path = "tmp/amazon-chime-sdk"
+        singlejs_path = "#{repository_path}/utils/singlejs"
+        package_json_path = "#{singlejs_path}/package.json"
+
+        puts "Finding amazon-chime-sdk-js version ..."
+        chime_sdk_pattern = /\"amazon-chime-sdk-js\":[\s]*\"([\S]*)\"$/
+        buffer = File.open(package_json_path, "r") { |f| f.read() }
+        if version_tag.present?
+          puts " Specified \"#{sdk_version}\" as an argument"
+          if `npm info #{version_tag} version`.present?
+            puts " #{version_tag} was found as npm package"
+            if buffer =~ chime_sdk_pattern
+              buffer.gsub!(chime_sdk_pattern, "\"amazon-chime-sdk-js\": \"#{sdk_version}\"")
+              File.open(package_json_path, "w") { |f| f.write(buffer) }
+              puts " Replaced amazon-chime-sdk-js version into \"#{sdk_version}\" in package.json"
+              puts " amazon-chime-sdk-js \"#{sdk_version}\" will be used"
+            else
+              # :nocov:
+              puts "[Abort] amazon-chime-sdk-js was not found in package.json"
+              exit
+              # :nocov:
+            end
+          else
+            puts "[Abort] No npm package of #{version_tag} was found. Specify different amazon-chime-sdk-js version."
+            exit
+          end
+        else
+          if buffer =~ /\"amazon-chime-sdk-js\":[\s]*\"([\S]*)\"$/
+            sdk_version = $1
+            puts " amazon-chime-sdk-js \"#{sdk_version}\" was found in package.json"
+            puts " amazon-chime-sdk-js \"#{sdk_version}\" will be used"
+          else
+            # :nocov:
+            puts " No amazon-chime-sdk-js was found in package.json"
+            # :nocov:
+          end
+        end
+
         puts "Running 'npm install @rollup/plugin-commonjs' in the repository ..."
-        `cd tmp/amazon-chime-sdk-js/demos/singlejs; npm install @rollup/plugin-commonjs > /dev/null 2>&1`
+        system "cd #{singlejs_path}; npm install @rollup/plugin-commonjs > /dev/null 2>&1"
         puts "Running 'npm run bundle' in the repository ..."
-        `cd tmp/amazon-chime-sdk-js/demos/singlejs; npm run bundle > /dev/null 2>&1`
+        system "cd #{singlejs_path}; npm run bundle > /dev/null 2>&1"
         puts "Built Amazon Chime SDK as amazon-chime-sdk.min.js"
-        copy_file "tmp/amazon-chime-sdk-js/demos/singlejs/build/amazon-chime-sdk.min.js", "app/assets/javascripts/amazon-chime-sdk.min.js"
-        copy_file "tmp/amazon-chime-sdk-js/demos/singlejs/build/amazon-chime-sdk.min.js.map", "app/assets/javascripts/amazon-chime-sdk.min.js.map"
-        `rm -rf tmp/amazon-chime-sdk-js`
+        copy_file "#{singlejs_path}/build/amazon-chime-sdk.min.js", "app/assets/javascripts/amazon-chime-sdk.min.js"
+        copy_file "#{singlejs_path}/build/amazon-chime-sdk.min.js.map", "app/assets/javascripts/amazon-chime-sdk.min.js.map"
+        system "rm -rf #{repository_path}"
         puts "Cleaned up the repository in tmp directory"
         puts "Completed"
       end
     end
   end
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