Specify alternate run control file path from CLI

features/cli/run_control.feature

@@ -0,0 +1,9 @@
+Feature: run control file path CLI option
+
+  Scenario: changes the path to run control file
+    Given a file named uhwmrc.rb with:
+      """
+      puts 'run control evaluation'
+      """
+    When I run uhwm with option -f uhwmrc.rb
+    Then the output must contain "run control evaluation"

features/steps/output_steps.rb

@@ -6,6 +6,7 @@ options:
     -h, --help                       print this message
     -v, --version                    enable verbose mode
     -d, --debug                      enable debug mode
+    -f, --run-control PATH           specify alternate run control file
     -r, --require PATH               require ruby feature
     -l, --layout LAYOUT              specify layout
   eoh

lib/uh/wm/cli.rb

@@ -64,6 +64,11 @@ module Uh
             @env.log_logger_level
           end
 
+          opts.on '-f', '--run-control PATH',
+            'specify alternate run control file' do |e|
+            @env.rc_path = e
+          end
+
           opts.on '-r', '--require PATH', 'require ruby feature' do |feature|
             require feature
             @env.log "Loaded `#{feature}' ruby feature"

spec/uh/wm/cli_spec.rb

@@ -148,6 +148,15 @@ module Uh
           end
         end
 
+        context 'with run control option' do
+          let(:arguments) { %w[-f uhwmrc.rb] }
+
+          it 'assigns run control file path in the env' do
+            cli.parse_arguments!
+            expect(cli.env.rc_path).to eq 'uhwmrc.rb'
+          end
+        end
+
         context 'with require option' do
           let(:arguments) { %w[-r abbrev] }