Fix new link_to i18n w.r.t. index pages. For #850

middleman-core/features/i18n_link_to.feature

@@ -11,6 +11,7 @@ Feature: i18n Paths
       ---
       en:
         msg: Hello
+        home: Home
       """
     And a file named "locales/es.yml" with:
       """
@@ -19,10 +20,21 @@ Feature: i18n Paths
         paths:
           hello: "hola"
         msg: Hola
+        home: Casa
+      """
+    And a file named "source/localizable/index.html.erb" with:
+      """
+      Page: <%= t(:hom) %>
       """
     And a file named "source/localizable/hello.html.erb" with:
       """
       Page: <%= t(:msg) %>
+
+      <%= link_to "Current Home", "/index.html", class: 'current' %>
+      <%= link_to "Other Home", "/index.html", title: "Other Home", locale: ::I18n.locale == :en ? :es : :en %>
+      <% link_to "/index.html", class: 'current' do %><span>Home: Current Block</span><% end %>
+      <% link_to "/index.html", title: "Other Home", locale: ::I18n.locale == :en ? :es : :en do %><span>Home: Other Block</span><% end %>
+
       <% data.pages.each_with_index do |p, i| %>
         <%= link_to "Current #{p}", "/#{p}", class: 'current' %>
         <%= link_to "Other #{p}", "/#{p}", title: "Other #{p}", locale: ::I18n.locale == :en ? :es : :en %>
@@ -32,17 +44,26 @@ Feature: i18n Paths
       """
     And a file named "config.rb" with:
       """
-      activate :i18n
+      activate :i18n, mount_at_root: :en
       """
     Given the Server is running at "empty-app"
     When I go to "/hello.html"
     Then I should see "Page: Hello"
+    Then I should see '<a class="current" href="/index.html">Current Home</a>'
+    Then I should see '<a title="Other Home" href="/es/index.html">Other Home</a>'
+    Then I should see '<a class="current" href="/index.html"><span>Home: Current Block</span></a>'
+    Then I should see '<a title="Other Home" href="/es/index.html"><span>Home: Other Block</span></a>'
     Then I should see '<a class="current" href="/hello.html">Current hello.html</a>'
     Then I should see '<a title="Other hello.html" href="/es/hola.html">Other hello.html</a>'
     Then I should see '<a class="current" href="/hello.html"><span>Current Block</span></a>'
     Then I should see '<a title="Other hello.html" href="/es/hola.html"><span>Other Block</span></a>'
     When I go to "/es/hola.html"
     Then I should see "Page: Hola"
+    Then I should see '<a class="current" href="/es/index.html">Current Home</a>'
+    Then I should see '<a title="Other Home" href="/index.html">Other Home</a>'
+    Then I should see '<a class="current" href="/es/index.html"><span>Home: Current Block</span></a>'
+    Then I should see '<a title="Other Home" href="/index.html"><span>Home: Other Block</span></a>'
+
     Then I should see '<a class="current" href="/es/hola.html">Current hello.html</a>'
     Then I should see '<a title="Other hello.html" href="/hello.html">Other hello.html</a>'
     Then I should see '<a class="current" href="/es/hola.html"><span>Current Block</span></a>'
@@ -93,7 +114,7 @@ Feature: i18n Paths
       """
     And a file named "config.rb" with:
       """
-      activate :i18n
+      activate :i18n, mount_at_root: :en
       """
     Given the Server is running at "empty-app"
     When I go to "/hello.html"

middleman-core/lib/middleman-more/core_extensions/i18n.rb

@@ -64,7 +64,13 @@ class Middleman::CoreExtensions::Internationalization < ::Middleman::Extension
       locale = options.delete(:locale) || ::I18n.locale
 
       href = super(path_or_resource, options)
-      extensions[:i18n].localized_path(href, locale) || href
+
+      if result = extensions[:i18n].localized_path(href, locale)
+        result
+      else
+        # Should we log the missing file?
+        href
+      end
     end
   end
 
@@ -116,7 +122,10 @@ class Middleman::CoreExtensions::Internationalization < ::Middleman::Extension
   end
 
   def localized_path(path, lang)
-    @lookup[path] && @lookup[path][lang]
+    lookup_path = path.dup
+    lookup_path << app.config[:index_file] if lookup_path.end_with?('/')
+
+    @lookup[lookup_path] && @lookup[lookup_path][lang]
   end
 
   private
@@ -222,14 +231,14 @@ class Middleman::CoreExtensions::Internationalization < ::Middleman::Extension
     ::I18n.locale = lang
     localized_page_id = ::I18n.t("paths.#{page_id}", default: page_id, fallback: [])
 
-    localized_path = ""
+    partially_localized_path = ""
 
     File.dirname(path).split('/').each do |path_sub|
       next if path_sub == ""
-      localized_path = "#{localized_path}/#{(::I18n.t("paths.#{path_sub}", default: path_sub).to_s)}"
+      partially_localized_path = "#{partially_localized_path}/#{(::I18n.t("paths.#{path_sub}", default: path_sub).to_s)}"
     end
 
-    path = "#{localized_path}/#{File.basename(path)}"
+    path = "#{partially_localized_path}/#{File.basename(path)}"
 
     prefix = if (options[:mount_at_root] == lang) || (options[:mount_at_root].nil? && langs[0] == lang)
       '/'