Fix FileMover

Both Publish and Unpublish take in the relative path as the argument, so
prepending the root directory won't give you the correct path to the
file. Just prepend the root directory to the target path.

Author: Matthew Loberg

lib/jekyll-compose/file_mover.rb

@@ -33,7 +33,7 @@ def move_file
 
       private
       def from
-        file_path(movement.from)
+        movement.from
       end
 
       def to

spec/publish_spec.rb

@@ -77,6 +77,8 @@
     let(:drafts_dir) { Pathname.new source_dir('site', '_drafts') }
     let(:posts_dir)  { Pathname.new source_dir('site', '_posts') }
 
+    let(:args) { ["site/_drafts/#{draft_to_publish}"] }
+
     before(:each) do
       File.open(config, 'w') do |f|
         f.write(%{
@@ -101,6 +103,8 @@
     let(:drafts_dir) { Pathname.new source_dir('site', '_drafts') }
     let(:posts_dir)  { Pathname.new source_dir('site', '_posts') }
 
+    let(:args) { ["site/_drafts/#{draft_to_publish}"] }
+
     it 'should use source directory set by command line option' do
       expect(post_path).not_to exist
       expect(draft_path).to exist

spec/unpublish_spec.rb

@@ -62,6 +62,8 @@
     let(:drafts_dir) { Pathname.new(source_dir('site', '_drafts')) }
     let(:posts_dir)  { Pathname.new(source_dir('site', '_posts')) }
 
+    let(:args) { ["site/_posts/#{post_filename}"] }
+
     before(:each) do
       File.open(config, 'w') do |f|
         f.write(%{
@@ -87,6 +89,8 @@
     let(:drafts_dir) { Pathname.new(source_dir('site', '_drafts')) }
     let(:posts_dir)  { Pathname.new(source_dir('site', '_posts')) }
 
+    let(:args) { ["site/_posts/#{post_filename}"] }
+
     it 'should use source directory set by command line option' do
       expect(post_path).to exist
       expect(draft_path).not_to exist