Initial working version

.rspec

@@ -0,0 +1 @@
+--color

guard-focus.gemspec

@@ -1,10 +1,10 @@
 # -*- encoding: utf-8 -*-
 $:.push File.expand_path("../lib", __FILE__)
-require "guard-focus/version"
+require "guard/focus/version"
 
 Gem::Specification.new do |s|
   s.name        = "guard-focus"
-  s.version     = Guard::Focus::VERSION
+  s.version     = Guard::FocusVersion::VERSION
   s.authors     = ["Lar Van Der Jagt"]
   s.email       = ["lar@hashrocket.com"]
   s.homepage    = "http://github.com/supaspoida/guard-focus"

lib/guard/focus.rb

@@ -0,0 +1,55 @@
+require 'guard'
+require 'guard/guard'
+require 'forwardable'
+
+module Guard
+  class Focus < Guard
+    autoload :Libraries, 'guard/focus/libraries'
+
+    extend Forwardable
+
+    def_delegators :library, :base_path, :executable, :extension, :focus_regexp
+
+    attr_reader :paths, :focused, :library
+
+    def initialize(watchers=[], options={})
+      super
+      @library = Libraries[options[:on]]
+    end
+
+    def run_all
+      success?([base_path])
+    end
+
+    def run_on_change(files)
+      success?(files)
+    end
+
+    private
+
+    def command
+      ['time', executable, paths.join(' '), options].compact * ' '
+    end
+
+    def has_focus?(file)
+      begin
+        File.read(file) =~ focus_regexp
+      rescue Errno::EISDIR => e
+        Dir.glob("#{file}/**/*#{extension}").any? &method(:has_focus?)
+      rescue Errno::ENOENT => e
+        UI.debug "\e[31mMissing directory: #{base_path}"
+      end
+    end
+
+    def options
+      '--tag @focus' if focused
+    end
+
+    def success?(paths)
+      @paths   = paths
+      @focused = paths.any? &method(:has_focus?)
+      UI.info "\nRunning: \e[33m#{command}\n"
+      system command
+    end
+  end
+end

lib/guard/focus/libraries.rb

@@ -0,0 +1,26 @@
+require 'ostruct'
+
+module Guard
+  class Focus
+    class Libraries < OpenStruct
+      def self.cucumber
+        new base_path:    'features',
+            focus_regexp: /^\s*@focus/,
+            executable:   'cucumber',
+            extension:    '.feature'
+      end
+
+      def self.rspec
+        new base_path:    'spec',
+            focus_regexp: /^\s*(describe|context|it).*?(:focus|focus:)/,
+            executable:   'rspec',
+            extension:    '_spec.rb'
+      end
+
+      def self.[](name)
+        { cucumber: cucumber,
+          rspec:    rspec     }[name]
+      end
+    end
+  end
+end

lib/guard/focus/templates/Guardfile

@@ -0,0 +1,10 @@
+guard 'focus', on: :rspec do
+  watch(%r{^spec/.+_spec\.rb})
+  watch(%r{^app/(.+)\.rb})                           { |m| "spec/#{m[1]}_spec.rb" }
+  watch(%r{^lib/(.+)\.rb})                           { |m| "spec/#{m[1]}_spec.rb" }
+  watch(%r{^app/controllers/(.+)_(controller)\.rb})  { |m| "spec/#{m[2]}s/#{m[1]}_#{m[2]}_spec.rb" }
+end
+
+guard 'focus', on: :cucumber do
+  watch(%r{^features/.+\.feature$})
+end

lib/guard-focus/version.rb → lib/guard/focus/version.rb

@@ -1,5 +1,5 @@
 module Guard
-  module Focus
+  module FocusVersion
     VERSION = "0.0.1"
   end
 end