feat: use package_json for interacting with package.json

Author: G-Rath

.github/workflows/ruby.yml

@@ -20,6 +20,8 @@ jobs:
       matrix:
         ruby: [2.7]
     runs-on: ubuntu-latest
+    env:
+      PACKAGE_JSON_FALLBACK_MANAGER: yarn_classic
     steps:
       - uses: actions/checkout@v4
         with:

Gemfile

@@ -3,4 +3,7 @@
 source "http://rubygems.org"
 
 gemspec
+
+gem "package_json", github: "G-Rath/package_json"
+
 # This is an optional dev-dependency, required whenever sprockets is required

Gemfile.lock

@@ -1,3 +1,9 @@
+GIT
+  remote: https://github.com/G-Rath/package_json.git
+  revision: d48f2c0db14bb1305f249fffb52fd2e0065678ee
+  specs:
+    package_json (0.1.0)
+
 PATH
   remote: .
   specs:
@@ -102,12 +108,8 @@ GEM
     matrix (0.4.2)
     method_source (1.0.0)
     mini_mime (1.0.2)
-    mini_portile2 (2.8.4)
     minitest (5.17.0)
     nenv (0.3.0)
-    nokogiri (1.14.3)
-      mini_portile2 (~> 2.8.0)
-      racc (~> 1.4)
     nokogiri (1.14.3-x86_64-darwin)
       racc (~> 1.4)
     nokogiri (1.14.3-x86_64-linux)
@@ -166,7 +168,6 @@ GEM
     zeitwerk (2.6.6)
 
 PLATFORMS
-  ruby
   x86_64-darwin-20
   x86_64-linux
 
@@ -182,6 +183,7 @@ DEPENDENCIES
   guard-minitest
   jbuilder
   listen (~> 3.0.0)
+  package_json!
   pry-byebug
   react-rails!
   selenium-webdriver

Rakefile

@@ -14,25 +14,22 @@ def copy_react_asset(webpack_file, destination_file)
   FileUtils.cp(full_webpack_path, full_destination_path)
 end
 
-# Move to `dirname` and execute `yarn {cmd}`
-def yarn_run_in(dirname, cmd)
-  Dir.chdir(dirname) do
-    `yarn #{cmd}`
-  end
-end
-
 namespace :react do
   desc "Run the JS build process to put files in the gem source"
   task update: %i[install build copy]
 
   desc "Install the JavaScript dependencies"
   task :install do
-    yarn_run_in("react-builds", "install")
+    require "package_json"
+
+    PackageJson.read("react-builds").manager.install
   end
 
   desc "Build the JS bundles with Webpack"
   task :build do
-    yarn_run_in("react-builds", "build")
+    require "package_json"
+
+    PackageJson.read("react-builds").manager.run("build")
   end
 
   desc "Copy browser-ready JS files to the gem's asset paths"
@@ -51,12 +48,16 @@ namespace :ujs do
 
   desc "Install the JavaScript dependencies"
   task :install do
-    `yarn install`
+    require "package_json"
+
+    PackageJson.read.manager.install
   end
 
   desc "Build the JS bundles with Webpack"
   task :build do
-    `yarn build`
+    require "package_json"
+
+    PackageJson.read.manager.run("build")
   end
 
   desc "Copy browser-ready JS files to the gem's asset paths"
@@ -87,7 +88,9 @@ task default: :test
 
 task :test_setup do
   Dir.chdir("./test/dummy") do
-    `yarn install`
+    require "package_json"
+
+    PackageJson.read.manager.install
   end
 end
 

lib/generators/react/install_generator.rb

@@ -103,8 +103,20 @@ def setup_react_sprockets
         ReactRailsUJS.useContext(componentRequireContext);
       JS
 
+      # TODO: replace with standard "require" call once gem is published
+      def require_package_json_gem
+        require "bundler/inline"
+
+        gemfile { gem "package_json", github: "G-Rath/package_json" }
+
+        puts "using package_json v#{PackageJson::VERSION}"
+      end
+
       def setup_react_shakapacker
-        `yarn add react_ujs`
+        require_package_json_gem
+
+        PackageJson.read.manager.add(["react_ujs"])
+
         if manifest.exist?
           append_file(manifest, SHAKAPACKER_SETUP_UJS)
         else