Check puma config environment file on control_cli

Fix #1445

lib/puma/control_cli.rb

@@ -22,6 +22,7 @@ def initialize(argv, stdout=STDOUT, stderr=STDERR)
       @control_auth_token = nil
       @config_file = nil
       @command = nil
+      @environment = ENV['RACK_ENV'] || "development"
 
       @argv = argv.dup
       @stdout = stdout
@@ -59,6 +60,11 @@ def initialize(argv, stdout=STDOUT, stderr=STDERR)
           @config_file = arg
         end
 
+        o.on "-e", "--environment ENVIRONMENT",
+          "The environment to run the Rack app on (default development)" do |arg|
+          @environment = arg
+        end
+
         o.on_tail("-H", "--help", "Show this message") do
           @stdout.puts o
           exit
@@ -76,8 +82,10 @@ def initialize(argv, stdout=STDOUT, stderr=STDERR)
       @command = argv.shift
 
       unless @config_file == '-'
-        if @config_file.nil? and File.exist?('config/puma.rb')
-          @config_file = 'config/puma.rb'
+        if @config_file.nil?
+          @config_file = %W(config/puma/#{@environment}.rb config/puma.rb).find do |f|
+            File.exist?(f)
+          end
         end
 
         if @config_file
@@ -258,6 +266,7 @@ def start
       run_args += ["--control-url", @control_url] if @control_url
       run_args += ["--control-token", @control_auth_token] if @control_auth_token
       run_args += ["-C", @config_file] if @config_file
+      run_args += ["-e", @environment] if @environment
 
       events = Puma::Events.new @stdout, @stderr
 

test/test_pumactl.rb

@@ -29,6 +29,37 @@ def test_config_file
     assert_equal "t3-pid", control_cli.instance_variable_get("@pidfile")
   end
 
+  def test_environment
+    ENV.delete 'RACK_ENV' # remove from travis
+    control_cli = Puma::ControlCLI.new ["halt"]
+    assert_equal "development", control_cli.instance_variable_get("@environment")
+    control_cli = Puma::ControlCLI.new ["-e", "test", "halt"]
+    assert_equal "test", control_cli.instance_variable_get("@environment")
+  end
+
+  def test_config_file_exist
+    ENV.delete 'RACK_ENV' # remove from travis
+    port = 6001
+    Dir.mktmpdir do |d|
+      Dir.chdir(d) do
+        FileUtils.mkdir("config")
+        File.open("config/puma.rb", "w") { |f| f << "port #{port}" }
+        control_cli = Puma::ControlCLI.new ["halt"]
+        assert_equal "config/puma.rb",
+          control_cli.instance_variable_get("@config_file")
+      end
+    end
+    Dir.mktmpdir do |d|
+      Dir.chdir(d) do
+        FileUtils.mkdir_p("config/puma")
+        File.open("config/puma/development.rb", "w") { |f| f << "port #{port}" }
+        control_cli = Puma::ControlCLI.new ["halt"]
+        assert_equal "config/puma/development.rb",
+          control_cli.instance_variable_get("@config_file")
+      end
+    end
+  end
+
   def test_control_no_token
     opts = [
       "--config-file", "test/config/control_no_token.rb",