Allow configuring pumactl with config.rb

example:
  echo "pidfile '/tmp/app.pid'; rackup 'config.ru'" > /etc/puma/app.rb
  pumactl -F /etc/puma/app.rb start # starts an app and store pid in /tmp/app.pid
  pumactl -F /etc/puma/app.rb stop  # stops the started earlier app

Integration test t2 included: rake test:integration
Also fixed discrepancy in naming options :pidfile/:pid_file and :state/:status_file

lib/puma/control_cli.rb

@@ -20,10 +20,10 @@ module Puma
       @options = {}
       
       opts = OptionParser.new do |o|
-        o.banner = "Usage: pumactl (-p PID | -P pidfile | -S status_file | -C url -T token) (#{COMMANDS.join("|")})"
+        o.banner = "Usage: pumactl (-p PID | -P pidfile | -S status_file | -C url -T token | -F config.rb) (#{COMMANDS.join("|")})"
 
         o.on "-S", "--state PATH", "Where the state file to use is" do |arg|
-          @options[:status_path] = arg
+          @options[:state] = arg
         end
 
         o.on "-Q", "--quiet", "Not display messages" do |arg|
@@ -31,7 +31,7 @@ module Puma
         end
 
         o.on "-P", "--pidfile PATH", "Pid file" do |arg|
-          @options[:pid_file] = arg
+          @options[:pidfile] = arg
         end
 
         o.on "-p", "--pid PID", "Pid" do |arg|
@@ -46,6 +46,10 @@ module Puma
           @options[:control_auth_token] = arg
         end
 
+        o.on "-F", "--config-file PATH", "Puma config script" do |arg|
+          @options[:config_file] = arg
+        end
+
         o.on_tail("-H", "--help", "Show this message") do
           @stdout.puts o
           exit
@@ -62,6 +66,8 @@ module Puma
       command = argv.shift
       @options[:command] = command if command
 
+      Puma::Configuration.new(@options).load if @options[:config_file]
+
       # check present of command
       unless @options[:command]
         raise "Available commands: #{COMMANDS.join(", ")}"
@@ -81,12 +87,12 @@ module Puma
     end
 
     def prepare_configuration
-      if @options.has_key? :status_path
-        unless File.exist? @options[:status_path]
-          raise "Status file not found: #{@options[:status_path]}"
+      if @options.has_key? :state
+        unless File.exist? @options[:state]
+          raise "Status file not found: #{@options[:state]}"
         end
 
-        status = YAML.load File.read(@options[:status_path])
+        status = YAML.load File.read(@options[:state])
 
         if status.kind_of?(Hash) && status.has_key?("config")
 
@@ -105,12 +111,12 @@ module Puma
           # get pid
           @options[:pid] = status["pid"].to_i
         else
-          raise "Invalid status file: #{@options[:status_path]}"
+          raise "Invalid status file: #{@options[:state]}"
         end
 
-      elsif @options.has_key? :pid_file
+      elsif @options.has_key? :pidfile
         # get pid from pid_file
-        @options[:pid] = File.open(@options[:pid_file]).gets.to_i
+        @options[:pid] = File.open(@options[:pidfile]).gets.to_i
       end
     end
 
@@ -206,9 +212,12 @@ module Puma
         require 'puma/cli'
 
         run_args = @argv
-        if path = @options[:status_path]
+        if path = @options[:state]
           run_args = ["-S", path] + run_args
         end
+        if path = @options[:config_file]
+          run_args = ["-C", path] + run_args
+        end
 
         events = Puma::Events.new @stdout, @stderr
 

test/shell/run.sh

@@ -1,7 +1,17 @@
+ERROR=0
+
 if ruby -rubygems t1.rb > /dev/null 2>&1; then
   echo "t1 OK"
-  exit 0
 else
   echo "t1 FAIL"
-  exit 1
+  ERROR=1
 fi
+
+if ruby -rubygems t2.rb > /dev/null 2>&1; then
+  echo "t2 OK"
+else
+  echo "t2 FAIL"
+  ERROR=2
+fi
+
+exit $ERROR

test/shell/t1.rb

@@ -8,8 +8,8 @@ sleep 1
 
 log = File.read("t1-stdout")
 
-File.unlink "t1-stdout"
-File.unlink "t1-pid"
+File.unlink "t1-stdout" if File.file? "t1-stdout"
+File.unlink "t1-pid" if File.file? "t1-pid"
 
 if log =~ %r!GET / HTTP/1\.1!
   exit 0

test/shell/t2.rb

@@ -0,0 +1,17 @@
+system "ruby -rubygems -I../../lib ../../bin/pumactl -F t2_conf.rb start"
+sleep 5
+system "curl http://localhost:10103/"
+
+system "ruby -rubygems -I../../lib ../../bin/pumactl -F t2_conf.rb stop"
+
+sleep 1
+
+log = File.read("t2-stdout")
+
+File.unlink "t2-stdout" if File.file? "t2-stdout"
+
+if log =~ %r(GET / HTTP/1\.1) && !File.file?("t2-pid")
+  exit 0
+else
+  exit 1
+end

test/shell/t2_conf.rb

@@ -0,0 +1,5 @@
+stdout_redirect "t2-stdout"
+pidfile "t2-pid"
+bind "tcp://0.0.0.0:10103"
+rackup File.expand_path('../hello.ru', File.dirname(__FILE__))
+daemonize