Add configuration for setting up Run Script phases

This adds the ability for users to define custom Run Script build phases
to be added to the main application target. By default, we're only
adding the original TODO/FIXME comment script

- Adds `run_script_phases` key to configuration. The value for this key
  is an array of dictionaries. The key for the dictionary will be used
  as the filename of the template script and the value will be used as the
  name for the script inside Xcode.
- Removes the `install_todo_script` key from the configuration. This key
  is superseded by the `run_script_phases` key.

Fixes #118

defaults/liftoffrc

@@ -8,12 +8,14 @@
 
 configure_git: true
 warnings_as_errors: true
-install_todo_script: true
 enable_static_analyzer: true
 indentation_level: 4
 use_tabs: false
 use_cocoapods: true
 
+run_script_phases:
+  - todo.sh: Warn for TODO and FIXME comments
+
 warnings:
   - GCC_WARN_INITIALIZER_NOT_FULLY_BRACKETED
   - GCC_WARN_MISSING_PARENTHESES

lib/liftoff/launchpad.rb

@@ -30,7 +30,7 @@ def perform_project_actions
       set_indentation_level
       enable_warnings
       treat_warnings_as_errors
-      add_todo_script_phase
+      add_script_phases
       enable_static_analyzer
       generate_git
     end
@@ -54,9 +54,9 @@ def set_indentation_level
     def treat_warnings_as_errors
       xcode_helper.treat_warnings_as_errors(@config.warnings_as_errors)
     end
-
-    def add_todo_script_phase
-      xcode_helper.add_todo_script_phase(@config.install_todo_script)
+    
+    def add_script_phases
+      xcode_helper.add_script_phases(@config.run_script_phases)
     end
 
     def enable_warnings

lib/liftoff/project_configuration.rb

@@ -2,7 +2,7 @@ module Liftoff
   class ProjectConfiguration
     LATEST_IOS = 7.0
 
-    attr_accessor :project_name, :company, :prefix, :configure_git, :warnings_as_errors, :install_todo_script, :enable_static_analyzer, :indentation_level, :warnings, :application_target_groups, :unit_test_target_groups, :use_cocoapods
+    attr_accessor :project_name, :company, :prefix, :configure_git, :warnings_as_errors, :enable_static_analyzer, :indentation_level, :warnings, :application_target_groups, :unit_test_target_groups, :use_cocoapods, :run_script_phases
     attr_writer :author, :company_identifier, :use_tabs
 
     def initialize(liftoffrc)

lib/liftoff/xcodeproj_helper.rb

@@ -36,11 +36,14 @@ def set_indentation_level(level, use_tabs)
         main_group.uses_tabs = use_tabs
       end
     end
-
-    def add_todo_script_phase(enable_todos)
-      if enable_todos
-        puts 'Adding shell script build phase to warn on TODO and FIXME comments'
-        add_shell_script_build_phase(file_manager.template_contents('todo.sh'), 'Warn for TODO and FIXME comments')
+
+    def add_script_phases(scripts)
+      if scripts
+        scripts.each do |script|
+          key, value = script.first
+          puts "Adding shell script build phase '#{value}'"
+          add_shell_script_build_phase(file_manager.template_contents(key), value)
+        end
       end
     end