Fix sqlite3 on Ruby 2.7 on Mac

Author: JonRowe

Gemfile-rails-dependencies

@@ -12,7 +12,12 @@ def add_net_gems_dependency
 end
 
 # sqlite3 is an optional, unspecified, dependency and Rails 6.0 only supports `~> 1.4`
-gem 'sqlite3', '~> 1.4', platforms: [:ruby]
+if RUBY_VERSION.to_f < 3
+  # sqlite3 1.7.x doesn't work on all platforms for Ruby 2.x
+  gem 'sqlite3', '~> 1.4', '< 1.7', platforms: [:ruby]
+else
+  gem 'sqlite3', '~> 1.4', platforms: [:ruby]
+end
 
 if RUBY_VERSION.to_f < 2.7
   gem 'puma', '< 6.0.0'

example_app_generator/generate_app.rb

@@ -28,8 +28,12 @@
 
   gsub_file "Gemfile", /.*rails-controller-testing.*/, "gem 'rails-controller-testing', git: 'https://github.com/rails/rails-controller-testing'"
 
-  # sqlite3 is an optional, unspecified, dependency and Rails 6.0 only supports `~> 1.4`
-  gsub_file "Gemfile", /.*gem..sqlite3.*/, "gem 'sqlite3', '~> 1.4'"
+  # sqlite3 is an optional, unspecified, dependency and Rails 6.0 only supports `~> 1.4`, and Ruby 2.7 only supports < 1.7
+  if RUBY_VERSION.to_f < 3
+    gsub_file "Gemfile", /.*gem..sqlite3.*/, "gem 'sqlite3', '~> 1.4', '< 1.7'"
+  else
+    gsub_file "Gemfile", /.*gem..sqlite3.*/, "gem 'sqlite3', '~> 1.4'"
+  end
 
   # remove webdrivers
   gsub_file "Gemfile", /gem ['"]webdrivers['"]/, ""