Fix bug where commit data would not appear in some subdirectories

The upgrade from Rails v4.1.2 to v4.1.9 (76aad9b7) caused slashes in a tree to be escaped automatically.
Using wildcard globs prevents this behavior.

Closes #1478, #1459

CHANGELOG

@@ -16,7 +16,7 @@ v 7.11.0 (unreleased)
   - Don't crash when an MR from a fork has a cross-reference comment from the target project on of its commits.
   - Include commit comments in MR from a forked project.
   -
-  -
+  - Fix bug where commit data would not appear in some subdirectories (Stan Hu)
   - Fix bug where Slack service channel was not saved in admin template settings. (Stan Hu)
   - Move snippets UI to fluid layout
   - Improve UI for sidebar. Increase separation between navigation and content

config/routes.rb

@@ -435,7 +435,7 @@ Gitlab::Application.routes.draw do
           member do
             # tree viewer logs
             get 'logs_tree', constraints: { id: Gitlab::Regex.git_reference_regex }
-            get 'logs_tree/:path' => 'refs#logs_tree', as: :logs_file, constraints: {
+            get 'logs_tree/*path' => 'refs#logs_tree', as: :logs_file, constraints: {
               id: Gitlab::Regex.git_reference_regex,
               path: /.*/
             }

spec/lib/extracts_path_spec.rb

@@ -2,6 +2,8 @@ require 'spec_helper'
 
 describe ExtractsPath do
   include ExtractsPath
+  include RepoHelpers
+  include Rails.application.routes.url_helpers
 
   let(:project) { double('project') }
 
@@ -11,6 +13,20 @@ describe ExtractsPath do
     project.stub(path_with_namespace: 'gitlab/gitlab-ci')
   end
 
+  describe '#assign_ref' do
+    let(:ref) { sample_commit[:id] }
+    let(:params) { {path: sample_commit[:line_code_path], ref: ref} }
+
+    before do
+      @project = create(:project)
+    end
+
+    it "log tree path should have no escape sequences" do
+      assign_ref_vars
+      expect(@logs_path).to eq("/#{@project.path_with_namespace}/refs/#{ref}/logs_tree/files/ruby/popen.rb")
+    end
+  end
+
   describe '#extract_ref' do
     it "returns an empty pair when no @project is set" do
       @project = nil