Modify project plist for decorated icons during build time

lib/ios_build_kit/tasks/decorate_icon.rb

@@ -22,6 +22,7 @@ def initialize(attributes = {})
 
       def run!
         decorate_icons!
+        update_plist_icons!
         complete_task!
       end
 
@@ -49,12 +50,32 @@ def icon_files_to_decorate
         to_decorate
       end
 
+      def decorated_icon_path icon_path
+        original_img_filename = File.basename icon_path
+        new_img_filename = "Decorated-" + original_img_filename
+        icon_path.gsub(original_img_filename, new_img_filename)
+      end
+
       def decorate_icons!
         icon_files_to_decorate.each do |img_path|
           @decorated_icons << create_decorated_version_of(img_path)
         end
       end
 
+      def update_plist_icons!
+        backup_plist = @runner.config.info_plist.gsub(/(\.plist)$/i, '.orig\1')
+        FileUtils.remove_file backup_plist, true
+        FileUtils.cp @runner.config.info_plist, backup_plist
+        @runner.store[:backup_plist] = backup_plist
+
+        icons = BuildKit::Utilities::PlistPal.read_array_value_in_plist(
+          @runner.config.info_plist, "CFBundleIcons:CFBundlePrimaryIcon:CFBundleIconFiles")
+
+        decorated_icons = icons.map{|icon| decorated_icon_path(icon)}
+        BuildKit::Utilities::PlistPal.write_array_value_in_plist(
+          @runner.config.info_plist, "CFBundleIcons:CFBundlePrimaryIcon:CFBundleIconFiles", decorated_icons)
+      end
+
       def create_decorated_version_of icon_path
         original = Magick::ImageList.new icon_path
         decorated_icon = original.copy
@@ -84,10 +105,7 @@ def create_decorated_version_of icon_path
           self.font_weight = annotation_params[:font_weight]
         end
 
-        original_img_filename = File.basename icon_path
-        new_img_filename = "Decorated-" + original_img_filename
-        new_img_full_path = icon_path.gsub(original_img_filename, new_img_filename)
-
+        new_img_full_path = decorated_icon_path(icon_path)
         decorated_icon.write(new_img_full_path)
 
         new_img_full_path

lib/ios_build_kit/tasks/xcode_build.rb

@@ -19,6 +19,7 @@ def run!
         run_command! "clean" if @task_options[:clean]
         run_command! "build"
         create_build_directory unless File.exists?(@config.absolute_build_dir)
+        cleanup_build_assets!
         complete_task!
       end
 
@@ -57,6 +58,13 @@ def build_succeeded?
         @output.include? "EXIT CODE: 0"
       end
 
+      def cleanup_build_assets!
+        if @runner.has_completed_task? :decorate_icon
+          backup_plist = @runner.store[:backup_plist]
+          FileUtils.mv backup_plist, @runner.config.info_plist, :force => true
+        end
+      end
+
       def complete_task!
         @runner.store[:xcode_build_succeeded] = build_succeeded?
         message = (build_succeeded?) ? "xcode_build completed, project built successfully" : "xcode_build completed, but the project failed to build"

lib/ios_build_kit/utils/plist_pal.rb

@@ -10,16 +10,36 @@ def self.read_value_in_plist plist, key
         %x[/usr/libexec/PlistBuddy -c "Print #{key}" \"#{plist}\"]
       end
 
+      def self.read_array_value_in_plist plist, key
+        array_value = []
+        index = 0
+        loop do
+          value = %x[/usr/libexec/PlistBuddy -c "Print #{key}:#{index}" \"#{plist}\" 2>/dev/null]
+          break if !$?.success? || value.nil?
+          array_value.push value.strip
+          index += 1
+        end
+        return array_value
+      end
+
       def self.write_value_in_plist plist, key, value
         plist_buddy_command = "\"Set :#{key} #{value}\" \"#{plist}\""
         system "/usr/libexec/PlistBuddy -c #{plist_buddy_command}"
       end
 
+      def self.write_array_value_in_plist plist, key, array_value
+        system "/usr/libexec/PlistBuddy -c \"Delete #{key}\" \"#{plist}\""
+        system "/usr/libexec/PlistBuddy -c \"Add #{key} array\" \"#{plist}\""
+        array_value.each_with_index do |value, index|
+          system "/usr/libexec/PlistBuddy -c \"Add #{key}:#{index} string #{value}\" \"#{plist}\""
+        end
+      end
+
       def self.brute_replace_in_plist plist, value, new_value
-    	  original = File.read plist
-      	updated = original.gsub value, new_value
-      	File.open(plist, "w") { |file| file.write updated }
-    	end
+        original = File.read plist
+        updated = original.gsub value, new_value
+        File.open(plist, "w") { |file| file.write updated }
+      end
 
     end