From 47c3642cf1b806829960c2c205fabfa715a29d09 Mon Sep 17 00:00:00 2001
From: Guilherme Goettems Schneider <guigs81@gmail.com>
Date: Fri, 2 Feb 2018 14:32:46 -0200
Subject: [PATCH] Add line break after check_yarn_integrity template config

Use Rails 5 API when available, making easier to drop support of Rails 4.2 in future.
---
 lib/install/template.rb | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/lib/install/template.rb b/lib/install/template.rb
index 01ba87946..b4ae37309 100644
--- a/lib/install/template.rb
+++ b/lib/install/template.rb
@@ -18,9 +18,18 @@
 
 say "Adding configurations"
 
+check_yarn_integrity_config = ->(value) { <<CONFIG }
 # Verifies that versions and hashed value of the package contents in the project's package.json
-inject_into_file "config/environments/development.rb", "  config.webpacker.check_yarn_integrity = true", after: "Rails.application.configure do\n", verbose: false
-inject_into_file "config/environments/production.rb", "  config.webpacker.check_yarn_integrity = false", after: "Rails.application.configure do\n", verbose: false
+  config.webpacker.check_yarn_integrity = #{value}
+CONFIG
+
+if Rails::VERSION::MAJOR >= 5
+  environment check_yarn_integrity_config.call("true"), env: :development
+  environment check_yarn_integrity_config.call("false"), env: :production
+else
+  inject_into_file "config/environments/development.rb", "\n  #{check_yarn_integrity_config.call("true")}", after: "Rails.application.configure do", verbose: false
+  inject_into_file "config/environments/production.rb", "\n  #{check_yarn_integrity_config.call("false")}", after: "Rails.application.configure do", verbose: false
+end
 
 if File.exists?(".gitignore")
   append_to_file ".gitignore", <<-EOS