From 1cac5633490b70dc844be583547a08807a8fb63b Mon Sep 17 00:00:00 2001
From: Steve Polito <stevepolito@hey.com>
Date: Tue, 26 Mar 2024 12:26:30 -0400
Subject: [PATCH] Lint Generator: Handling missing `package.json`

In order to avoid raising `No such file or directory`, we create a
`package.json` file if one does not exist. We borrow a template from
[cssbundling-rails][].

[cssbundling-rails]: https://github.com/rails/cssbundling-rails/blob/09d81cb0accf00abb77d8af5b24f5aad0b71a57a/lib/install/package.json#L3
---
 lib/generators/suspenders/lint_generator.rb       | 6 ++++++
 lib/generators/templates/lint/package.json        | 4 ++++
 test/generators/suspenders/lint_generator_test.rb | 8 ++++++++
 3 files changed, 18 insertions(+)
 create mode 100644 lib/generators/templates/lint/package.json

diff --git a/lib/generators/suspenders/lint_generator.rb b/lib/generators/suspenders/lint_generator.rb
index 96aa0533f..21c95e4ff 100644
--- a/lib/generators/suspenders/lint_generator.rb
+++ b/lib/generators/suspenders/lint_generator.rb
@@ -6,6 +6,12 @@ class LintGenerator < Rails::Generators::Base
       source_root File.expand_path("../../templates/lint", __FILE__)
       desc "Creates a holistic linting solution that covers JavaScript, CSS, Ruby and ERB."
 
+      def check_package_json
+        unless File.exist? Rails.root.join("package.json")
+          copy_file "package.json", "package.json"
+        end
+      end
+
       def install_dependencies
         run "yarn add stylelint eslint @thoughtbot/stylelint-config @thoughtbot/eslint-config npm-run-all prettier --dev"
       end
diff --git a/lib/generators/templates/lint/package.json b/lib/generators/templates/lint/package.json
new file mode 100644
index 000000000..dcd25e6e3
--- /dev/null
+++ b/lib/generators/templates/lint/package.json
@@ -0,0 +1,4 @@
+{
+  "name": "app",
+  "private": "true"
+}
diff --git a/test/generators/suspenders/lint_generator_test.rb b/test/generators/suspenders/lint_generator_test.rb
index 30520f7c4..6a3681014 100644
--- a/test/generators/suspenders/lint_generator_test.rb
+++ b/test/generators/suspenders/lint_generator_test.rb
@@ -248,6 +248,14 @@ class LintGeneratorTest < Rails::Generators::TestCase
         assert_equal desc, generator_class.desc
       end
 
+      test "created package.json if one does not exist" do
+        remove_file_if_exists "package.json"
+
+        run_generator
+
+        assert_file app_root("package.json")
+      end
+
       private
 
       def prepare_destination