Merge pull request #1 from dmantilla/master

Added support for arguments to the Go program

Author: Victor Castell

README.md

@@ -4,15 +4,15 @@ Guard Go runs go programs and restart when file changes
 
 ## Installation
 
-# For gophers
+### For gophers
 
 You must have a working Ruby installation, then:
 
     $ gem install bundler
     $ cd /your/project/dir 
     $ bundle init
 
-# For gophers and Rubysts
+### For gophers and Rubysts
 
 Add this line to your application's Gemfile:
 
@@ -38,7 +38,8 @@ Edit this and configure your application file name and desired options.
 
 Options defaults to:
 
-:server => 'app.go' - Go source file to run
-:test => false - To run go test insted of the app.
+    :server => 'app.go' # Go source file to run
+    :test   => false    # To run go test insted of the app.
+    :args   => []       # Parameters, e.g. :args => 420, :args => [420, 120], :args => ["one", "two"]
 
     $ bundle exec guard

lib/guard/go.rb

@@ -12,10 +12,13 @@ def initialize(watchers = [], options = {})
 
       defaults = {
         :server => 'app.go',
-        :test => false
+        :test => false,
+        :args => []
       }
 
       @options = defaults.merge(options)
+      @options[:args] = wrap_args(@options[:args])
+      @options[:args_to_s] = @options[:args].join(" ")
 
       @runner = ::Guard::GoRunner.new(@options)
     end
@@ -41,7 +44,7 @@ def start_info
       if @options[:test]
         UI.info "Running go test..."
       else
-        UI.info "Running #{options[:server]}..."
+        UI.info "Running #{options[:server] } #{options[:args_to_s]} ..."
       end
     end
 
@@ -53,5 +56,15 @@ def run_info(pid)
         UI.info "Go command failed, check your log files."
       end
     end
+
+    def wrap_args(obj)
+      if obj.nil?
+        []
+      elif obj.respond_to?(:to_ary)
+        obj.to_ary || [obj]
+      else
+        [obj]
+      end
+    end
   end
 end

lib/guard/go/runner.rb

@@ -32,7 +32,7 @@ def build_go_command
       if @options[:test]
         %{cd #{Dir.pwd} && go test}
       else
-        %{cd #{Dir.pwd} && go run #{@options[:server]} &}
+        %{cd #{Dir.pwd} && go run #{@options[:server]} #{@options[:args_to_s]} &}
       end
     end
 

lib/guard/go/templates/Guardfile

@@ -1,6 +1,6 @@
 # Add files and commands to this file, like the example:
 #   watch(%r{file/path}) { `command(s)` }
 #
-guard 'go', :server => 'app.go' do
+guard 'go', :server => 'app.go', :args => [] do
   watch(%r{\.go$})
 end

lib/guard/go/version.rb

@@ -1,5 +1,5 @@
 module Guard
   module GoVersion
-    VERSION = "0.0.4"
+    VERSION = "0.0.5"
   end
 end