Merge branch 'artifacts-from-ref-and-build-name' into 'master'

Add a download buttons for Build Artifacts

## What does this MR do?
This MR adds a download buttons for build artifacts of latest succesful pipeline in:
- dashboard of project,
- branches and tags views,
- and tree viewer

Implement #4255

## What are the relevant issue numbers?

Closes #4255, Closes #14419

## Screenshots

### Project main

![](/uploads/29ee2154a214416059a875f2715d4fa3/Screen_Shot_2016-08-24_at_8.00.31_PM.png)

### Branches

![](/uploads/9220c593288370986fbc1d42a1425ef7/Screen_Shot_2016-08-24_at_8.02.01_PM.png)

### Tags

![](/uploads/a843e8103221fea475a0cf9d62a1999d/Screen_Shot_2016-08-24_at_8.03.32_PM.png)

### Source Tree

![](/uploads/63cd3c8c91b6f427c166dc90d8e3c059/Screen_Shot_2016-08-24_at_8.04.56_PM.png)

## Does this MR meet the acceptance criteria?

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [x] Download buttons
- [x] Models
- [x] Routes
- [x] Projects::ArtifactsController
- [x] API
- Tests
  - Rails
      - [x] Project#builds_for
      - [x] branch name with slashes
      - [x] only success builds
      - [x] only latest builds
      - [x] feature tests for download buttons
  - API
      - [x] branch name with slashes
      - [x] only success builds
      - [x] only latest builds
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5142

16 files changed, 127 insertions, 77 deletions

diff --git a/app/assets/stylesheets/framework/dropdowns.scss b/app/assets/stylesheets/framework/dropdowns.scss
index be5c64c56d3..edb2ff01f88 100644
--- a/app/assets/stylesheets/framework/dropdowns.scss
+++ b/app/assets/stylesheets/framework/dropdowns.scss
@@ -195,6 +195,12 @@
   .separator + .dropdown-header {
     padding-top: 2px;
   }
+
+  .unclickable {
+    cursor: not-allowed;
+    padding: 5px 8px;
+    color: $dropdown-header-color;
+  }
 }
 
 .dropdown-menu-large {
diff --git a/app/controllers/projects/artifacts_controller.rb b/app/controllers/projects/artifacts_controller.rb
index 7241949393b..59222637961 100644
--- a/app/controllers/projects/artifacts_controller.rb
+++ b/app/controllers/projects/artifacts_controller.rb
@@ -1,22 +1,25 @@
 class Projects::ArtifactsController < Projects::ApplicationController
+  include ExtractsPath
+
   layout 'project'
   before_action :authorize_read_build!
   before_action :authorize_update_build!, only: [:keep]
+  before_action :extract_ref_name_and_path
   before_action :validate_artifacts!
 
   def download
-    unless artifacts_file.file_storage?
-      return redirect_to artifacts_file.url
+    if artifacts_file.file_storage?
+      send_file artifacts_file.path, disposition: 'attachment'
+    else
+      redirect_to artifacts_file.url
     end
-
-    send_file artifacts_file.path, disposition: 'attachment'
   end
 
   def browse
     directory = params[:path] ? "#{params[:path]}/" : ''
     @entry = build.artifacts_metadata_entry(directory)
 
-    return render_404 unless @entry.exists?
+    render_404 unless @entry.exists?
   end
 
   def file
@@ -34,14 +37,41 @@ class Projects::ArtifactsController < Projects::ApplicationController
     redirect_to namespace_project_build_path(project.namespace, project, build)
   end
 
+  def latest_succeeded
+    target_path = artifacts_action_path(@path, project, build)
+
+    if target_path
+      redirect_to(target_path)
+    else
+      render_404
+    end
+  end
+
   private
 
+  def extract_ref_name_and_path
+    return unless params[:ref_name_and_path]
+
+    @ref_name, @path = extract_ref(params[:ref_name_and_path])
+  end
+
   def validate_artifacts!
-    render_404 unless build.artifacts?
+    render_404 unless build && build.artifacts?
   end
 
   def build
-    @build ||= project.builds.find_by!(id: params[:build_id])
+    @build ||= build_from_id || build_from_ref
+  end
+
+  def build_from_id
+    project.builds.find_by(id: params[:build_id]) if params[:build_id]
+  end
+
+  def build_from_ref
+    return unless @ref_name
+
+    builds = project.latest_successful_builds_for(@ref_name)
+    builds.find_by(name: params[:job])
   end
 
   def artifacts_file
diff --git a/app/helpers/ci_status_helper.rb b/app/helpers/ci_status_helper.rb
index 00bdb488c9b..639deb7c521 100644
--- a/app/helpers/ci_status_helper.rb
+++ b/app/helpers/ci_status_helper.rb
@@ -25,6 +25,11 @@ module CiStatusHelper
     end
   end
 
+  def ci_status_for_statuseable(subject)
+    status = subject.try(:status) || 'not found'
+    status.humanize
+  end
+
   def ci_icon_for_status(status)
     icon_name =
       case status
diff --git a/app/helpers/gitlab_routing_helper.rb b/app/helpers/gitlab_routing_helper.rb
index 5386ddadc62..a322a90cc4e 100644
--- a/app/helpers/gitlab_routing_helper.rb
+++ b/app/helpers/gitlab_routing_helper.rb
@@ -149,4 +149,20 @@ module GitlabRoutingHelper
   def resend_invite_group_member_path(group_member, *args)
     resend_invite_group_group_member_path(group_member.source, group_member)
   end
+
+  # Artifacts
+
+  def artifacts_action_path(path, project, build)
+    action, path_params = path.split('/', 2)
+    args = [project.namespace, project, build, path_params]
+
+    case action
+    when 'download'
+      download_namespace_project_build_artifacts_path(*args)
+    when 'browse'
+      browse_namespace_project_build_artifacts_path(*args)
+    when 'file'
+      file_namespace_project_build_artifacts_path(*args)
+    end
+  end
 end
diff --git a/app/models/ci/pipeline.rb b/app/models/ci/pipeline.rb
index 03812cd195f..bd1737c7587 100644
--- a/app/models/ci/pipeline.rb
+++ b/app/models/ci/pipeline.rb
@@ -65,8 +65,8 @@ module Ci
     end
 
     # ref can't be HEAD or SHA, can only be branch/tag name
-    scope :latest_successful_for, ->(ref = default_branch) do
-      where(ref: ref).success.order(id: :desc).limit(1)
+    def self.latest_successful_for(ref)
+      where(ref: ref).order(id: :desc).success.first
     end
 
     def self.truncate_sha(sha)
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index a8dd4a306cf..62163e74000 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -729,7 +729,9 @@ class MergeRequest < ActiveRecord::Base
   end
 
   def pipeline
-    @pipeline ||= source_project.pipeline(diff_head_sha, source_branch) if diff_head_sha && source_project
+    return unless diff_head_sha && source_project
+
+    @pipeline ||= source_project.pipeline_for(source_branch, diff_head_sha)
   end
 
   def all_pipelines
diff --git a/app/models/project.rb b/app/models/project.rb
index 0fa41ebbec3..c34064f96ce 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -436,7 +436,7 @@ class Project < ActiveRecord::Base
 
   # ref can't be HEAD, can only be branch/tag name or SHA
   def latest_successful_builds_for(ref = default_branch)
-    latest_pipeline = pipelines.latest_successful_for(ref).first
+    latest_pipeline = pipelines.latest_successful_for(ref)
 
     if latest_pipeline
       latest_pipeline.builds.latest.with_artifacts
@@ -1100,12 +1100,17 @@ class Project < ActiveRecord::Base
     !namespace.share_with_group_lock
   end
 
-  def pipeline(sha, ref)
+  def pipeline_for(ref, sha = nil)
+    sha ||= commit(ref).try(:sha)
+
+    return unless sha
+
     pipelines.order(id: :desc).find_by(sha: sha, ref: ref)
   end
 
-  def ensure_pipeline(sha, ref, current_user = nil)
-    pipeline(sha, ref) || pipelines.create(sha: sha, ref: ref, user: current_user)
+  def ensure_pipeline(ref, sha, current_user = nil)
+    pipeline_for(ref, sha) ||
+      pipelines.create(sha: sha, ref: ref, user: current_user)
   end
 
   def enable_ci
diff --git a/app/views/projects/branches/_branch.html.haml b/app/views/projects/branches/_branch.html.haml
index 6192ccb710b..808e6b95746 100644
--- a/app/views/projects/branches/_branch.html.haml
+++ b/app/views/projects/branches/_branch.html.haml
@@ -27,6 +27,8 @@
         = link_to namespace_project_compare_index_path(@project.namespace, @project, from: @repository.root_ref, to: branch.name), class: 'btn btn-default', method: :post, title: "Compare" do
           Compare
 
+      = render 'projects/buttons/download', project: @project, ref: branch.name
+
       - if can_remove_branch?(@project, branch.name)
         = link_to namespace_project_branch_path(@project.namespace, @project, branch.name), class: 'btn btn-remove remove-row has-tooltip', title: "Delete branch", method: :delete, data: { confirm: "Deleting the '#{branch.name}' branch cannot be undone. Are you sure?", container: 'body' }, remote: true do
           = icon("trash-o")
diff --git a/app/views/projects/buttons/_download.html.haml b/app/views/projects/buttons/_download.html.haml
index 58f43ecb5d5..5f5e071eb40 100644
--- a/app/views/projects/buttons/_download.html.haml
+++ b/app/views/projects/buttons/_download.html.haml
@@ -1,4 +1,42 @@
-- unless @project.empty_repo?
-  - if can? current_user, :download_code, @project
-    = link_to archive_namespace_project_repository_path(@project.namespace, @project, ref: @ref, format: 'zip'), class: 'btn has-tooltip', data: {container: "body"}, rel: 'nofollow', title: "Download ZIP" do
-      = icon('download')
+- if !project.empty_repo? && can?(current_user, :download_code, project)
+  %span.btn-group{class: 'hidden-xs hidden-sm btn-grouped'}
+    .dropdown.inline
+      %button.btn{ 'data-toggle' => 'dropdown' }
+        = icon('download')
+        %span.caret
+        %span.sr-only
+          Select Archive Format
+      %ul.dropdown-menu.dropdown-menu-align-right{ role: 'menu' }
+        %li.dropdown-header Source code
+        %li
+          = link_to archive_namespace_project_repository_path(project.namespace, project, ref: ref, format: 'zip'), rel: 'nofollow' do
+            %i.fa.fa-download
+            %span Download zip
+        %li
+          = link_to archive_namespace_project_repository_path(project.namespace, project, ref: ref, format: 'tar.gz'), rel: 'nofollow' do
+            %i.fa.fa-download
+            %span Download tar.gz
+        %li
+          = link_to archive_namespace_project_repository_path(project.namespace, project, ref: ref, format: 'tar.bz2'), rel: 'nofollow' do
+            %i.fa.fa-download
+            %span Download tar.bz2
+        %li
+          = link_to archive_namespace_project_repository_path(project.namespace, project, ref: ref, format: 'tar'), rel: 'nofollow' do
+            %i.fa.fa-download
+            %span Download tar
+
+        - pipeline = project.pipelines.latest_successful_for(ref)
+        - if pipeline
+          - artifacts = pipeline.builds.latest.with_artifacts
+          - if artifacts.any?
+            %li.dropdown-header Artifacts
+            - unless pipeline.latest?
+              - latest_pipeline = project.pipeline_for(ref)
+              %li
+                .unclickable= ci_status_for_statuseable(latest_pipeline)
+              %li.dropdown-header Previous Artifacts
+            - artifacts.each do |job|
+              %li
+                = link_to latest_succeeded_namespace_project_artifacts_path(project.namespace, project, ref, 'download', job: job.name), rel: 'nofollow' do
+                  %i.fa.fa-download
+                  %span Download '#{job.name}'
diff --git a/app/views/projects/issues/_related_branches.html.haml b/app/views/projects/issues/_related_branches.html.haml
index 6ea9f612d13..a8eeab3e55e 100644
--- a/app/views/projects/issues/_related_branches.html.haml
+++ b/app/views/projects/issues/_related_branches.html.haml
@@ -5,7 +5,7 @@
     - @related_branches.each do |branch|
       %li
         - target = @project.repository.find_branch(branch).target
-        - pipeline = @project.pipeline(target.sha, branch) if target
+        - pipeline = @project.pipeline_for(branch, target.sha) if target
         - if pipeline
           %span.related-branch-ci-status
             = render_pipeline_status(pipeline)
diff --git a/app/views/projects/repositories/_download_archive.html.haml b/app/views/projects/repositories/_download_archive.html.haml
deleted file mode 100644
index 24658319060..00000000000
--- a/app/views/projects/repositories/_download_archive.html.haml
+++ /dev/null
@@ -1,37 +0,0 @@
-- ref = ref || nil
-- btn_class = btn_class || ''
-- split_button = split_button || false
-- if split_button == true
-  %span.btn-group{class: btn_class}
-    = link_to archive_namespace_project_repository_path(@project.namespace, @project, ref: ref, format: 'zip'), class: 'btn col-xs-10', rel: 'nofollow' do
-      %i.fa.fa-download
-      %span Download zip
-    %a.col-xs-2.btn.dropdown-toggle{ 'data-toggle' => 'dropdown' }
-      %span.caret
-      %span.sr-only
-        Select Archive Format
-    %ul.col-xs-10.dropdown-menu.dropdown-menu-align-right{ role: 'menu' }
-      %li
-        = link_to archive_namespace_project_repository_path(@project.namespace, @project, ref: ref, format: 'zip'), rel: 'nofollow' do
-          %i.fa.fa-download
-          %span Download zip
-      %li
-        = link_to archive_namespace_project_repository_path(@project.namespace, @project, ref: ref, format: 'tar.gz'), rel: 'nofollow' do
-          %i.fa.fa-download
-          %span Download tar.gz
-      %li
-        = link_to archive_namespace_project_repository_path(@project.namespace, @project, ref: ref, format: 'tar.bz2'), rel: 'nofollow' do
-          %i.fa.fa-download
-          %span Download tar.bz2
-      %li
-        = link_to archive_namespace_project_repository_path(@project.namespace, @project, ref: ref, format: 'tar'), rel: 'nofollow' do
-          %i.fa.fa-download
-          %span Download tar
-- else
-  %span.btn-group{class: btn_class}
-    = link_to archive_namespace_project_repository_path(@project.namespace, @project, ref: ref, format: 'zip'), class: 'btn', rel: 'nofollow' do
-      %i.fa.fa-download
-      %span zip
-    = link_to archive_namespace_project_repository_path(@project.namespace, @project, ref: ref, format: 'tar.gz'), class: 'btn', rel: 'nofollow' do
-      %i.fa.fa-download
-      %span tar.gz
diff --git a/app/views/projects/show.html.haml b/app/views/projects/show.html.haml
index 340e159c874..9adce776c1c 100644
--- a/app/views/projects/show.html.haml
+++ b/app/views/projects/show.html.haml
@@ -72,7 +72,7 @@
           = render "projects/buttons/koding"
 
         .btn-group.project-repo-btn-group
-          = render "projects/buttons/download"
+          = render 'projects/buttons/download', project: @project, ref: @ref
           = render 'projects/buttons/dropdown'
 
         = render 'shared/notifications/button', notification_setting: @notification_setting
diff --git a/app/views/projects/tags/_download.html.haml b/app/views/projects/tags/_download.html.haml
deleted file mode 100644
index 8a11dbfa9f4..00000000000
--- a/app/views/projects/tags/_download.html.haml
+++ /dev/null
@@ -1,14 +0,0 @@
-%span.btn-group
-  = link_to archive_namespace_project_repository_path(project.namespace, project, ref: ref, format: 'zip'), class: 'btn btn-default', rel: 'nofollow' do
-    %span Source code
-  %a.btn.btn-default.dropdown-toggle{ 'data-toggle' => 'dropdown' }
-    %span.caret
-    %span.sr-only
-      Select Archive Format
-  %ul.dropdown-menu.dropdown-menu-align-right{ role: 'menu' }
-    %li
-      = link_to archive_namespace_project_repository_path(project.namespace, project, ref: ref, format: 'zip'), rel: 'nofollow' do
-        %span Download zip
-    %li
-      = link_to archive_namespace_project_repository_path(project.namespace, project, ref: ref, format: 'tar.gz'), rel: 'nofollow' do
-        %span Download tar.gz
diff --git a/app/views/projects/tags/_tag.html.haml b/app/views/projects/tags/_tag.html.haml
index 2c11c0e5b21..a156d98bab8 100644
--- a/app/views/projects/tags/_tag.html.haml
+++ b/app/views/projects/tags/_tag.html.haml
@@ -11,8 +11,7 @@
       = strip_gpg_signature(tag.message)
 
     .controls
-      - if can?(current_user, :download_code, @project)
-        = render 'projects/tags/download', ref: tag.name, project: @project
+      = render 'projects/buttons/download', project: @project, ref: tag.name
 
       - if can?(current_user, :push_code, @project)
         = link_to edit_namespace_project_tag_release_path(@project.namespace, @project, tag.name), class: 'btn has-tooltip', title: "Edit release notes", data: { container: "body" } do
diff --git a/app/views/projects/tags/show.html.haml b/app/views/projects/tags/show.html.haml
index 395d7af6cbb..4dd7439b2d0 100644
--- a/app/views/projects/tags/show.html.haml
+++ b/app/views/projects/tags/show.html.haml
@@ -12,8 +12,7 @@
         = icon('files-o')
       = link_to namespace_project_commits_path(@project.namespace, @project, @tag.name), class: 'btn has-tooltip', title: 'Browse commits' do
         = icon('history')
-      - if can? current_user, :download_code, @project
-        = render 'projects/tags/download', ref: @tag.name, project: @project
+      = render 'projects/buttons/download', project: @project, ref: @tag.name
       - if can?(current_user, :admin_project, @project)
         .pull-right
           = link_to namespace_project_tag_path(@project.namespace, @project, @tag.name), class: 'btn btn-remove remove-row grouped has-tooltip', title: "Delete tag", method: :delete, data: { confirm: "Deleting the '#{@tag.name}' tag cannot be undone. Are you sure?" } do
diff --git a/app/views/projects/tree/show.html.haml b/app/views/projects/tree/show.html.haml
index bf5360b4dee..37d341212af 100644
--- a/app/views/projects/tree/show.html.haml
+++ b/app/views/projects/tree/show.html.haml
@@ -10,8 +10,7 @@
 %div{ class: container_class }
   .tree-controls
     = render 'projects/find_file_link'
-    - if can? current_user, :download_code, @project
-      = render 'projects/repositories/download_archive', ref: @ref, btn_class: 'hidden-xs hidden-sm btn-grouped', split_button: true
+    = render 'projects/buttons/download', project: @project, ref: @ref
 
   #tree-holder.tree-holder.clearfix
     .nav-block