Added String#to_path and Array#to_path

lib/sashimi/core_ext/array.rb

@@ -0,0 +1,21 @@
+class Array
+  # Transform the current +Array+ to a path.
+  # It's an alias for +File#join+
+  #
+  #  %w(path to app).to_path # => path/to/app
+  #  %w(path to app).to_path(true) # => /Users/luca/path/to/app
+  def to_path(absolute = false)
+    path = File.join(self)
+    path = File.expand_path(path) if absolute
+    path
+  end
+
+  # Transform the current +Array+ to an absolute path.
+  #
+  # %w(path to app).to_absolute_path # => /Users/luca/path/to/app
+  # %w(path to app).to_abs_path # => /Users/luca/path/to/app
+  def to_absolute_path
+    to_path(true)
+  end
+  alias_method :to_abs_path, :to_absolute_path
+end

lib/sashimi/core_ext/string.rb

@@ -0,0 +1,13 @@
+class String
+  # Transform the current +String+ to a system path,
+  # according to the current platform file system.
+  #
+  #  "path/to/app".to_path # => path/to/app (on *nix)
+  #  "path/to/app".to_path # => path\to\app (on Windows)
+  #
+  #  "path/to/app".to_path(true) # => /Users/luca/path/to/app (on *nix)
+  #  "path/to/app".to_path(true) # => C:\path\to\app (on Windows)
+  def to_path(absolute = false)
+    self.split(/\/\\/).to_path(absolute)
+  end
+end

test/unit/core_ext/array_test.rb

@@ -0,0 +1,22 @@
+require 'test/unit'
+require 'test/test_helper'
+
+class ArrayTest < Test::Unit::TestCase
+  uses_mocha 'ArrayTest' do
+    def setup
+      File.stubs(:SEPARATOR).returns '/'
+    end
+
+    def test_to_path  
+      assert_equal 'path/to/app', %w(path to app).to_path
+    end
+
+    def test_to_absolute_path
+      actual = File.dirname(__FILE__)
+      expected = File.expand_path actual
+      assert_equal expected, actual.split(File::SEPARATOR).to_path(true)
+      assert_equal expected, actual.split(File::SEPARATOR).to_absolute_path
+      assert_equal expected, actual.split(File::SEPARATOR).to_abs_path
+    end
+  end
+end

test/unit/core_ext/string_test.rb

@@ -0,0 +1,20 @@
+require 'test/unit'
+require 'test/test_helper'
+
+class StringTest < Test::Unit::TestCase
+  uses_mocha 'StringTest' do
+    def setup
+      File.stubs(:SEPARATOR).returns '/'      
+    end
+
+    def test_to_path
+      assert_equal 'path/to/app', 'path/to/app'.to_path
+    end
+
+    def test_to_absolute_path
+      actual = File.dirname(__FILE__)
+      expected = File.expand_path actual
+      assert_equal expected, actual.to_path(true)
+    end
+  end
+end