Merge branch 'feature/project-export' into 'master'

Export project functionality

This is a MR for the export functionality of https://gitlab.com/gitlab-org/gitlab-ce/issues/3050, which adds the ability to export single projects.

- [x] members
- DB data
  - [x] issues
  - [x] issue comments
  - [x] merge requests
  - [x] merge request diff
  - [x] merge request comments
  - [x] labels
  - [x] milestones
  - [x] snippets
  - [x] releases
  - [x] events
  - [x] commit statuses
  - [x] CI builds
- File system data
  - [x] Git repository
  - [x] wiki
  - [x] uploads
  - [ ] ~~CI build traces~~
  - [ ] ~~CI build artifacts~~
  - [ ] ~~LFS objects~~
- DB configuration
  - [x] services
  - [x] web hooks
  - [x] protected branches
  - [x] deploy keys
  - [x] CI variables
  - [x] CI triggers

See merge request !3114

1 files changed, 43 insertions, 1 deletions

diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index 482c11cf23c..8044c637825 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -7,7 +7,7 @@ class ProjectsController < Projects::ApplicationController
   before_action :assign_ref_vars, :tree, only: [:show], if: :repo_exists?
 
   # Authorize
-  before_action :authorize_admin_project!, only: [:edit, :update, :housekeeping]
+  before_action :authorize_admin_project!, only: [:edit, :update, :housekeeping, :download_export, :export, :remove_export, :generate_new_export]
   before_action :event_filter, only: [:show, :activity]
 
   layout :determine_layout
@@ -186,6 +186,48 @@ class ProjectsController < Projects::ApplicationController
     )
   end
 
+  def export
+    @project.add_export_job(current_user: current_user)
+
+    redirect_to(
+      edit_project_path(@project),
+      notice: "Project export started. A download link will be sent by email."
+    )
+  end
+
+  def download_export
+    export_project_path = @project.export_project_path
+
+    if export_project_path
+      send_file export_project_path, disposition: 'attachment'
+    else
+      redirect_to(
+        edit_project_path(@project),
+        alert: "Project export link has expired. Please generate a new export from your project settings."
+      )
+    end
+  end
+
+  def remove_export
+    if @project.remove_exports
+      flash[:notice] = "Project export has been deleted."
+    else
+      flash[:alert] = "Project export could not be deleted."
+    end
+    redirect_to(edit_project_path(@project))
+  end
+
+  def generate_new_export
+    if @project.remove_exports
+      export
+    else
+      redirect_to(
+        edit_project_path(@project),
+        alert: "Project export could not be deleted."
+      )
+    end
+  end
+
   def toggle_star
     current_user.toggle_star(@project)
     @project.reload