Update working dir (if present) when edited via the API. Closes #6.

lib/gollum/wiki.rb

@@ -135,9 +135,12 @@ module Gollum
 
       parents = pcommit ? [pcommit] : []
       actor   = Grit::Actor.new(commit[:name], commit[:email])
-      sha = index.commit(commit[:message], parents, actor)
+      sha1    = index.commit(commit[:message], parents, actor)
+
       @ref_map.clear
-      sha
+      update_working_dir(index, '', name, format)
+
+      sha1
     end
 
     # Public: Update an existing page with new content. The location of the
@@ -162,21 +165,26 @@ module Gollum
       format ||= page.format
       index    = self.repo.index
 
+      dir = ::File.dirname(page.path)
+      dir = '' if dir == '.'
+
       index.read_tree(pcommit.tree.id)
 
       if page.name == name && page.format == format
         index.add(page.path, normalize(data))
       else
         index.delete(page.path)
-        dir = ::File.dirname(page.path)
-        dir = '' if dir == '.'
         add_to_index(index, dir, name, format, data, :allow_same_ext)
       end
 
       actor = Grit::Actor.new(commit[:name], commit[:email])
-      sha = index.commit(commit[:message], [pcommit], actor)
+      sha1  = index.commit(commit[:message], [pcommit], actor)
+
       @ref_map.clear
-      sha
+      update_working_dir(index, dir, page.name, page.format)
+      update_working_dir(index, dir, name, format)
+
+      sha1
     end
 
     # Public: Delete a page.
@@ -195,10 +203,16 @@ module Gollum
       index.read_tree(pcommit.tree.id)
       index.delete(page.path)
 
+      dir = ::File.dirname(page.path)
+      dir = '' if dir == '.'
+
       actor = Grit::Actor.new(commit[:name], commit[:email])
-      sha = index.commit(commit[:message], [pcommit], actor)
+      sha1  = index.commit(commit[:message], [pcommit], actor)
+
       @ref_map.clear
-      sha
+      update_working_dir(index, dir, page.name, page.format)
+
+      sha1
     end
 
     # Public: Lists all pages for this wiki.
@@ -265,6 +279,45 @@ module Gollum
       data.gsub(/\r/, '')
     end
 
+    # Assemble a Page's filename from its name and format.
+    #
+    # name   - The String name of the page (may be in human format).
+    # format - The Symbol format of the page.
+    #
+    # Returns the String filename.
+    def page_file_name(name, format)
+      ext = @page_class.format_to_ext(format)
+      @page_class.cname(name) + '.' + ext
+    end
+
+    # Update the given file in the repository's working directory if there
+    # is a working directory present.
+    #
+    # index  - The Grit::Index with which to sync.
+    # dir    - The String directory in which the file lives.
+    # name   - The String name of the page (may be in human format).
+    # format - The Symbol format of the page.
+    #
+    # Returns nothing.
+    def update_working_dir(index, dir, name, format)
+      unless @repo.bare
+        path =
+        if dir == ''
+          page_file_name(name, format)
+        else
+          ::File.join(dir, page_file_name(name, format))
+        end
+
+        Dir.chdir(::File.join(@repo.path, '..')) do
+          if file_path_scheduled_for_deletion?(index.tree, path)
+            @repo.git.rm({'f' => true}, '--', path)
+          else
+            @repo.git.checkout({}, 'HEAD', '--', path)
+          end
+        end
+      end
+    end
+
     # Fill an array with a list of pages.
     #
     # commit   - The Grit::Commit
@@ -290,8 +343,32 @@ module Gollum
       list
     end
 
-    # Determine if a given page path is scheduled to be deleted in the next
-    # commit for the given Index.
+    # Determine if a given file is scheduled to be deleted in the next commit
+    # for the given Index.
+    #
+    # map   - The Hash map:
+    #         key - The String directory or filename.
+    #         val - The Hash submap or the String contents of the file.
+    # path - The String path of the file including extension.
+    #
+    # Returns the Boolean response.
+    def file_path_scheduled_for_deletion?(map, path)
+      parts = path.split('/')
+      if parts.size == 1
+        deletions = map.keys.select { |k| !map[k] }
+        deletions.any? { |d| d == parts.first }
+      else
+        part = parts.shift
+        if rest = map[part]
+          file_path_scheduled_for_deletion?(rest, parts.join('/'))
+        else
+          false
+        end
+      end
+    end
+
+    # Determine if a given page (regardless of format) is scheduled to be
+    # deleted in the next commit for the given Index.
     #
     # map   - The Hash map:
     #         key - The String directory or filename.
@@ -311,7 +388,7 @@ module Gollum
         if rest = map[part]
           page_path_scheduled_for_deletion?(rest, parts.join('/'))
         else
-          nil
+          false
         end
       end
     end
@@ -332,8 +409,7 @@ module Gollum
     #
     # Returns nothing (modifies the Index in place).
     def add_to_index(index, dir, name, format, data, allow_same_ext = false)
-      ext  = @page_class.format_to_ext(format)
-      path = @page_class.cname(name) + '.' + ext
+      path = page_file_name(name, format)
 
       dir = '/' if dir.strip.empty?