Merge branch 'filter-branch-by-name' into 'master'

Users can filter branches by name on project branches page

This MR aims to solve #18674 by adding the possibility to filter project branches by name

![Screen_Shot_2016-07-07_at_17.21.25](/uploads/b674765d2b1cb8a121c2101715a4568b/Screen_Shot_2016-07-07_at_17.21.25.png)

See merge request !5144

10 files changed, 207 insertions, 17 deletions

diff --git a/CHANGELOG b/CHANGELOG
index 698fbf6a160..0e887ce2119 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -14,6 +14,8 @@ v 8.10.1 (unreleased)
   - Ignore invalid trusted proxies in X-Forwarded-For header
   - Fix bug where replies to commit notes displayed in the MR discussion tab wouldn't show up on the commit page
 
+v 8.10.0 (unreleased)
+  - User can now search branches by name. !5144 (tiagonbotelho)
 v 8.10.0
   - Fix profile activity heatmap to show correct day name (eanplatter)
   - Speed up ExternalWikiHelper#get_project_wiki_path
diff --git a/app/controllers/projects/branches_controller.rb b/app/controllers/projects/branches_controller.rb
index dd9508da049..6126acccaab 100644
--- a/app/controllers/projects/branches_controller.rb
+++ b/app/controllers/projects/branches_controller.rb
@@ -6,8 +6,7 @@ class Projects::BranchesController < Projects::ApplicationController
   before_action :authorize_push_code!, only: [:new, :create, :destroy]
 
   def index
-    @sort = params[:sort] || 'name'
-    @branches = @repository.branches_sorted_by(@sort)
+    @branches = BranchesFinder.new(@repository, params).execute
     @branches = Kaminari.paginate_array(@branches).page(params[:page])
 
     @max_commits = @branches.reduce(0) do |memo, branch|
diff --git a/app/finders/branches_finder.rb b/app/finders/branches_finder.rb
new file mode 100644
index 00000000000..533076585c0
--- /dev/null
+++ b/app/finders/branches_finder.rb
@@ -0,0 +1,31 @@
+class BranchesFinder
+  def initialize(repository, params)
+    @repository = repository
+    @params = params
+  end
+
+  def execute
+    branches = @repository.branches_sorted_by(sort)
+    filter_by_name(branches)
+  end
+
+  private
+
+  attr_reader :repository, :params
+
+  def search
+    @params[:search].presence
+  end
+
+  def sort
+    @params[:sort].presence || 'name'
+  end
+
+  def filter_by_name(branches)
+    if search
+      branches.select { |branch| branch.name.include?(search) }
+    else
+      branches
+    end
+  end
+end
diff --git a/app/helpers/branches_helper.rb b/app/helpers/branches_helper.rb
index bfd23aa4e04..3fc85dc6b2b 100644
--- a/app/helpers/branches_helper.rb
+++ b/app/helpers/branches_helper.rb
@@ -9,6 +9,17 @@ module BranchesHelper
     end
   end
 
+  def filter_branches_path(options = {})
+    exist_opts = {
+      search: params[:search],
+      sort: params[:sort]
+    }
+
+    options = exist_opts.merge(options)
+
+    namespace_project_branches_path(@project.namespace, @project, @id, options)
+  end
+
   def can_push_branch?(project, branch_name)
     return false unless project.repository.branch_exists?(branch_name)
 
diff --git a/app/models/repository.rb b/app/models/repository.rb
index 793b1cf4989..69d71b7f96f 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -610,6 +610,8 @@ class Repository
   # Remove archives older than 2 hours
   def branches_sorted_by(value)
     case value
+    when 'name'
+      branches.sort_by(&:name)
     when 'recently_updated'
       branches.sort do |a, b|
         commit(b.target).committed_date <=> commit(a.target).committed_date
diff --git a/app/views/projects/branches/index.html.haml b/app/views/projects/branches/index.html.haml
index 77b405f1f39..6f806e3ce53 100644
--- a/app/views/projects/branches/index.html.haml
+++ b/app/views/projects/branches/index.html.haml
@@ -9,26 +9,30 @@
 
     - if can? current_user, :push_code, @project
       .nav-controls
-        = link_to new_namespace_project_branch_path(@project.namespace, @project), class: 'btn btn-create' do
-          New branch
+        = form_tag(filter_branches_path, method: :get) do
+          = search_field_tag :search, params[:search], { placeholder: 'Filter by branch name', id: 'branch-search', class: 'form-control search-text-input input-short', spellcheck: false }
         .dropdown.inline
           %button.dropdown-toggle.btn{type: 'button', 'data-toggle' => 'dropdown'}
             %span.light
-            - if @sort.present?
-              = @sort.humanize
+            - if params[:sort].present?
+              = params[:sort].humanize
             - else
               Name
             %b.caret
           %ul.dropdown-menu.dropdown-menu-align-right
             %li
-              = link_to namespace_project_branches_path(sort: nil) do
-                Name
-              = link_to namespace_project_branches_path(sort: 'recently_updated') do
+              = link_to filter_branches_path(sort: nil) do
+                = sort_title_name
+              = link_to filter_branches_path(sort: 'recently_updated') do
                 = sort_title_recently_updated
-              = link_to namespace_project_branches_path(sort: 'last_updated') do
+              = link_to filter_branches_path(sort: 'last_updated') do
                 = sort_title_oldest_updated
+        = link_to new_namespace_project_branch_path(@project.namespace, @project), class: 'btn btn-create' do
+          New branch
   - if @branches.any?
     %ul.content-list.all-branches
       - @branches.each do |branch|
         = render "projects/branches/branch", branch: branch
     = paginate @branches, theme: 'gitlab'
+  - else
+    .nothing-here-block No branches to show
diff --git a/db/schema.rb b/db/schema.rb
index d541e1cccb7..b87f8108bb2 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -84,7 +84,7 @@ ActiveRecord::Schema.define(version: 20160721081015) do
     t.string   "health_check_access_token"
     t.boolean  "send_user_confirmation_email",          default: false
     t.integer  "container_registry_token_expire_delay", default: 5
-    t.boolean  "user_default_external",                 default: false,        null: false
+    t.boolean  "user_default_external",                 default: false,       null: false
     t.text     "after_sign_up_text"
     t.string   "repository_storage",                    default: "default"
     t.string   "enabled_git_access_protocol"
@@ -607,9 +607,9 @@ ActiveRecord::Schema.define(version: 20160721081015) do
   add_index "merge_request_diffs", ["merge_request_id"], name: "index_merge_request_diffs_on_merge_request_id", unique: true, using: :btree
 
   create_table "merge_requests", force: :cascade do |t|
-    t.string   "target_branch",                             null: false
-    t.string   "source_branch",                             null: false
-    t.integer  "source_project_id",                         null: false
+    t.string   "target_branch",                                null: false
+    t.string   "source_branch",                                null: false
+    t.integer  "source_project_id",                            null: false
     t.integer  "author_id"
     t.integer  "assignee_id"
     t.string   "title"
@@ -618,20 +618,21 @@ ActiveRecord::Schema.define(version: 20160721081015) do
     t.integer  "milestone_id"
     t.string   "state"
     t.string   "merge_status"
-    t.integer  "target_project_id",                         null: false
+    t.integer  "target_project_id",                            null: false
     t.integer  "iid"
     t.text     "description"
-    t.integer  "position",                  default: 0
+    t.integer  "position",                     default: 0
     t.datetime "locked_at"
     t.integer  "updated_by_id"
     t.string   "merge_error"
     t.text     "merge_params"
-    t.boolean  "merge_when_build_succeeds", default: false, null: false
+    t.boolean  "merge_when_build_succeeds",    default: false, null: false
     t.integer  "merge_user_id"
     t.string   "merge_commit_sha"
     t.datetime "deleted_at"
     t.string   "in_progress_merge_commit_sha"
   end
+
   add_index "merge_requests", ["assignee_id"], name: "index_merge_requests_on_assignee_id", using: :btree
   add_index "merge_requests", ["author_id"], name: "index_merge_requests_on_author_id", using: :btree
   add_index "merge_requests", ["created_at", "id"], name: "index_merge_requests_on_created_at_and_id", using: :btree
diff --git a/spec/features/projects/branches_spec.rb b/spec/features/projects/branches_spec.rb
new file mode 100644
index 00000000000..79abba21854
--- /dev/null
+++ b/spec/features/projects/branches_spec.rb
@@ -0,0 +1,32 @@
+require 'spec_helper'
+
+describe 'Branches', feature: true do
+  let(:project) { create(:project) }
+  let(:repository) { project.repository }
+
+  before do
+    login_as :user
+    project.team << [@user, :developer]
+  end
+
+  describe 'Initial branches page' do
+    it 'shows all the branches' do
+      visit namespace_project_branches_path(project.namespace, project)
+
+      repository.branches { |branch| expect(page).to have_content("#{branch.name}") }
+      expect(page).to have_content("Protected branches can be managed in project settings")
+    end
+  end
+
+  describe 'Find branches' do
+    it 'shows filtered branches', js: true do
+      visit namespace_project_branches_path(project.namespace, project, project.id)
+
+      fill_in 'branch-search', with: 'fix'
+      find('#branch-search').native.send_keys(:enter)
+
+      expect(page).to have_content('fix')
+      expect(find('.all-branches')).to have_selector('li', count: 1)
+    end
+  end
+end
diff --git a/spec/features/projects/branches_spec.rb~HEAD b/spec/features/projects/branches_spec.rb~HEAD
new file mode 100644
index 00000000000..79abba21854
--- /dev/null
+++ b/spec/features/projects/branches_spec.rb~HEAD
@@ -0,0 +1,32 @@
+require 'spec_helper'
+
+describe 'Branches', feature: true do
+  let(:project) { create(:project) }
+  let(:repository) { project.repository }
+
+  before do
+    login_as :user
+    project.team << [@user, :developer]
+  end
+
+  describe 'Initial branches page' do
+    it 'shows all the branches' do
+      visit namespace_project_branches_path(project.namespace, project)
+
+      repository.branches { |branch| expect(page).to have_content("#{branch.name}") }
+      expect(page).to have_content("Protected branches can be managed in project settings")
+    end
+  end
+
+  describe 'Find branches' do
+    it 'shows filtered branches', js: true do
+      visit namespace_project_branches_path(project.namespace, project, project.id)
+
+      fill_in 'branch-search', with: 'fix'
+      find('#branch-search').native.send_keys(:enter)
+
+      expect(page).to have_content('fix')
+      expect(find('.all-branches')).to have_selector('li', count: 1)
+    end
+  end
+end
diff --git a/spec/finders/branches_finder_spec.rb b/spec/finders/branches_finder_spec.rb
new file mode 100644
index 00000000000..9c9763d746b
--- /dev/null
+++ b/spec/finders/branches_finder_spec.rb
@@ -0,0 +1,76 @@
+require 'spec_helper'
+
+describe BranchesFinder do
+  let(:user) { create(:user) }
+  let(:project) { create(:project) }
+  let(:repository) { project.repository }
+
+  describe '#execute' do
+    context 'sort only' do
+      it 'sorts by name' do
+        branches_finder = described_class.new(repository, {})
+
+        result = branches_finder.execute
+
+        expect(result.first.name).to eq("'test'")
+      end
+
+      it 'sorts by recently_updated' do
+        branches_finder = described_class.new(repository, { sort: 'recently_updated' })
+
+        result = branches_finder.execute
+
+        expect(result.first.name).to eq('expand-collapse-lines')
+      end
+
+      it 'sorts by last_updated' do
+        branches_finder = described_class.new(repository, { sort: 'last_updated' })
+
+        result = branches_finder.execute
+
+        expect(result.first.name).to eq('feature')
+      end
+    end
+
+    context 'filter only' do
+      it 'filters branches by name' do
+        branches_finder = described_class.new(repository, { search: 'fix' })
+
+        result = branches_finder.execute
+
+        expect(result.first.name).to eq('fix')
+        expect(result.count).to eq(1)
+      end
+
+      it 'does not find any branch with that name' do
+        branches_finder = described_class.new(repository, { search: 'random' })
+
+        result = branches_finder.execute
+
+        expect(result.count).to eq(0)
+      end
+    end
+
+    context 'filter and sort' do
+      it 'filters branches by name and sorts by recently_updated' do
+        params = { sort: 'recently_updated', search: 'feature' }
+        branches_finder = described_class.new(repository, params)
+
+        result = branches_finder.execute
+
+        expect(result.first.name).to eq('feature_conflict')
+        expect(result.count).to eq(2)
+      end
+
+      it 'filters branches by name and sorts by last_updated' do
+        params = { sort: 'last_updated', search: 'feature' }
+        branches_finder = described_class.new(repository, params)
+
+        result = branches_finder.execute
+
+        expect(result.first.name).to eq('feature')
+        expect(result.count).to eq(2)
+      end
+    end
+  end
+end