Implement Page#footer and display footer in frontend.

lib/gollum/frontend/public/css/screen.css

@@ -339,6 +339,11 @@ html {overflow-y: scroll;}
 
 /* Special markup considerations */
 
+.wikistyle.gollum.footer {
+  border-top: 4px solid #f0f0f0;
+  margin-top: 2em;
+}
+
 .wikistyle.gollum > h1:first-child {
   display: none;
 }

lib/gollum/frontend/templates/page.mustache

@@ -4,9 +4,14 @@
       <a href="/">Home</a> | <a href="/edit/{{name}}">Edit</a>
     </div>
     <h1>{{human_name}}</h1>
-    <div class="wikistyle gollum {{format}}">
+    <div class="content wikistyle gollum {{format}}">
       {{{content}}}
     </div>
+    {{#has_footer}}
+    <div class="footer wikistyle gollum {{footer_format}}">
+      {{{footer_content}}}
+    </div>
+    {{/has_footer}}
   </div>
 </div>
 <div class="admin">

lib/gollum/frontend/views/page.rb

@@ -1,7 +1,7 @@
 module Precious
   module Views
     class Page < Layout
-      attr_reader :content, :page
+      attr_reader :content, :page, :footer
 
       def human_name
         @page.title
@@ -23,6 +23,21 @@ module Precious
         @page.version.authored_date.strftime("%Y-%m-%d %H:%M:%S")
       end
 
+      def has_footer
+        @footer ||= @page.footer
+        !@footer.nil?
+      end
+
+      def footer_content
+        @footer ||= @page.footer
+        @footer.formatted_data
+      end
+
+      def footer_format
+        @footer ||= @page.footer
+        @footer.format.to_s
+      end
+
       def versions
         i = @page.versions.size + 1
         @page.versions.map do |v|

lib/gollum/page.rb

@@ -148,6 +148,28 @@ module Gollum
       @wiki.repo.log('master', @path, log_pagination_options(options))
     end
 
+    # Public: The footer Page.
+    #
+    # Returns the footer Page or nil if none exists.
+    def footer
+      dirs = self.path.split('/')
+      dirs.pop
+      while !dirs.empty?
+        tree = self.version.tree / dirs.join('/')
+        if page = find_page_in_this_tree(tree, dirs.join('/'), '_Footer')
+          return page
+        end
+        dirs.pop
+      end
+
+      tree = self.version.tree
+      if page = find_page_in_this_tree(tree, '', '_Footer')
+        return page
+      end
+
+      return nil
+    end
+
     #########################################################################
     #
     # Class Methods
@@ -245,6 +267,28 @@ module Gollum
       return nil # nothing was found
     end
 
+    # Find a page in a given tree without recursing into subtrees.
+    #
+    # tree - The Grit::Tree in which to look.
+    # dir  - The String path of the given Grit::Tree.
+    # name - The canonical String page name.
+    #
+    # Returns a Gollum::Page or nil if the page could not be found.
+    def find_page_in_this_tree(tree, dir, name)
+      treemap = {}
+      tree.contents.each do |item|
+        case item
+          when Grit::Blob
+            if page_match(name, item.name)
+              path = dir == '' ? '' : ::File.join('/', dir)
+              return populate(item, path)
+            end
+        end
+      end
+
+      return nil # nothing was found
+    end
+
     # Populate the Page with information from the Blob.
     #
     # blob - The Grit::Blob that contains the info.

test/examples/lotr.git/objects/0e/d8cbe0a25235bd867e65193c7d837c66b328ef

@@ -0,0 +1,3 @@
+x
�ŽAj1E³ö)t�	’ÆÛBs€@…®=#
+MÀ£â¸÷¯Ï�íã¿ÏÛ¬ÖGžó©7UÀ…fò	=Q$Ü2—Ä»²�Æ%ϼEÜue
+î·4=:dx–XÔ§¢k	1`Î"Ä™Ï(iôÄ•¿þc

test/examples/lotr.git/refs/heads/master

@@ -1 +1 @@
-94523d7ae48aeba575099dd12926420d8fd0425d
+0ed8cbe0a25235bd867e65193c7d837c66b328ef

test/test_page.rb

@@ -80,4 +80,16 @@ context "Page" do
     page = @wiki.page('Eye Of Sauron')
     assert_equal "Eye Of Sauron", page.title
   end
+
+  test "top level footer" do
+    footer = @wiki.page('Home').footer
+    assert_equal 'Lord of the Rings wiki', footer.raw_data
+    assert_equal '_Footer.md', footer.path
+  end
+
+  test "nested footer" do
+    footer = @wiki.page('Eye Of Sauron').footer
+    assert_equal "Ones does not simply **walk** into Mordor!\n", footer.raw_data
+    assert_equal "Mordor/_Footer.md", footer.path
+  end
 end