Add simple release script (gem-only) (#192)

* Remove bundler/gem_tasks to fix release task conflict

Removed `require 'bundler/gem_tasks'` from Rakefile because it creates
a conflicting `release` task that shadows our custom release task in
rakelib/release.rake.

Added manual :build task to replace what bundler/gem_tasks provided.

This matches the react_on_rails pattern where rakelib/release.rake
provides the release task without conflicts.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

* Simplify release script to match react_on_rails without npm

Cleaned up release.rake to exactly match react_on_rails pattern but
without the npm/release-it parts that aren't needed for cypress-on-rails.

Removed from react_on_rails version:
- npm_version conversion logic
- release-it command execution
- Gemfile.lock updates for dummy apps
- gemspec cleanup for subdirectories
- GitHub packages publishing

Kept from react_on_rails version:
- Same structure and flow
- RaisingMessageHandler class
- TaskHelpers include pattern
- git pull --rebase
- gem bump with -v flag (fixed from --version)
- gem release to rubygems.org
- Post-release CHANGELOG reminder

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

* Fix sh_in_dir to use Dir.chdir like react_on_rails

* Add --file flag to gem bump for version file detection

* Simplify Rakefile - remove unnecessary build task

The build task was not needed:
- gem release command handles building the gem
- We don't need a separate build step
- The default task can just run specs

This makes the Rakefile cleaner and simpler.

Author: justin808

Rakefile

@@ -1,8 +1,6 @@
-require 'bundler/gem_tasks'
-
 require 'rspec/core/rake_task'
 RSpec::Core::RakeTask.new(:spec) do |t|
   t.pattern = 'spec/cypress_on_rails/*_spec.rb'
 end
 
-task default: %w[spec build]
+task default: :spec

rakelib/release.rake

@@ -15,15 +15,15 @@ desc("Releases the gem using the given version.
 
 IMPORTANT: the gem version must be in valid rubygem format (no dashes).
 
-This task depends on the gem-release ruby gem which is installed via `bundle install`
+This task depends on the gem-release (ruby gem) which is installed via `bundle install`
 
 1st argument: The new version in rubygem format (no dashes). Pass no argument to
               automatically perform a patch version bump.
 2nd argument: Perform a dry run by passing 'true' as a second argument.
 
 Note, accept defaults for rubygems options. Script will pause to get 2FA tokens.
 
-Example: `rake release[1.19.0,false]`")
+Example: `rake release[2.1.0,false]`")
 task :release, %i[gem_version dry_run] do |_t, args|
   include CypressOnRails::TaskHelpers
 
@@ -40,7 +40,7 @@ task :release, %i[gem_version dry_run] do |_t, args|
 
   # See https://github.com/svenfuchs/gem-release
   sh_in_dir(gem_root, "git pull --rebase")
-  sh_in_dir(gem_root, "gem bump --no-commit #{gem_version.strip.empty? ? '' : %(-v #{gem_version})}")
+  sh_in_dir(gem_root, "gem bump --no-commit --file lib/cypress_on_rails/version.rb #{gem_version.strip.empty? ? '' : %(-v #{gem_version})}")
 
   # Release the new gem version
   puts "Carefully add your OTP for Rubygems. If you get an error, run 'gem release' again."

rakelib/task_helpers.rb

@@ -9,7 +9,15 @@ def gem_root
 
     # Executes a string or an array of strings in a shell in the given directory
     def sh_in_dir(dir, *shell_commands)
-      shell_commands.flatten.each { |shell_command| sh %(cd #{dir} && #{shell_command.strip}) }
+      Dir.chdir(dir) do
+        # Without `with_unbundled_env`, running bundle in the child directories won't correctly
+        # update the Gemfile.lock
+        Bundler.with_unbundled_env do
+          shell_commands.flatten.each do |shell_command|
+            sh(shell_command.strip)
+          end
+        end
+      end
     end
   end
-end
+end