Abort when run subprocess fail

lib/thor/actions.rb

@@ -255,9 +255,16 @@ def run(command, config = {})
 
       say_status :run, desc, config.fetch(:verbose, true)
 
-      unless options[:pretend]
-        config[:capture] ? `#{command}` : system(command.to_s)
+      return if options[:pretend]
+
+      result = config[:capture] ? `#{command}` : system(command.to_s)
+
+      if config[:abort_on_failure]
+        success = config[:capture] ? $?.success? : result
+        abort unless success
       end
+
+      result
     end
 
     # Executes a ruby script (taking into account WIN32 platform quirks).

spec/actions_spec.rb

@@ -291,6 +291,24 @@ def file
       end
     end
 
+    describe "aborting on failure" do
+      it "aborts when abort_on_failure is given and command fails" do
+        expect { action :run, "false", :abort_on_failure => true }.to raise_error(SystemExit)
+      end
+
+      it "suceeds when abort_on_failure is given and command succeeds" do
+        expect { action :run, "true", :abort_on_failure => true }.not_to raise_error
+      end
+
+      it "aborts when abort_on_failure is given, capture is given and command fails" do
+        expect { action :run, "false", :abort_on_failure => true, :capture => true }.to raise_error(SystemExit)
+      end
+
+      it "suceeds when abort_on_failure is given and command succeeds" do
+        expect { action :run, "true", :abort_on_failure => true, :capture => true }.not_to raise_error
+      end
+    end
+
     describe "when pretending" do
       it "doesn't execute the command" do
         runner = MyCounter.new([1], %w(--pretend))