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

8 files changed, 124 insertions, 2 deletions

diff --git a/app/views/import/gitlab_projects/new.html.haml b/app/views/import/gitlab_projects/new.html.haml
new file mode 100644
index 00000000000..44e2653ca4a
--- /dev/null
+++ b/app/views/import/gitlab_projects/new.html.haml
@@ -0,0 +1,25 @@
+- page_title "GitLab Import"
+- header_title "Projects", root_path
+%h3.page-title
+  = icon('gitlab')
+  Import an exported GitLab project
+%hr
+
+= form_tag import_gitlab_project_path, class: 'form-horizontal', multipart: true do
+  %p
+    Project will be imported as
+    %strong
+      #{@namespace_name}/#{@path}
+
+  %p
+    To move or copy an entire GitLab project from another GitLab installation to this one, navigate to the original project's settings page, generate an export file, and upload it here.
+  .form-group
+    = hidden_field_tag :namespace_id, @namespace_id
+    = hidden_field_tag :path, @path
+    = label_tag :file, class: 'control-label' do
+      %span GitLab project export
+    .col-sm-10
+      = file_field_tag :file, class: ''
+
+  .form-actions
+    = submit_tag 'Import project', class: 'btn btn-create'
diff --git a/app/views/notify/project_was_exported_email.html.haml b/app/views/notify/project_was_exported_email.html.haml
new file mode 100644
index 00000000000..b28fea35ad5
--- /dev/null
+++ b/app/views/notify/project_was_exported_email.html.haml
@@ -0,0 +1,8 @@
+%p
+  Project #{@project.name} was exported successfully.
+%p
+  The project export can be downloaded from:
+  = link_to download_export_namespace_project_url(@project.namespace, @project) do
+    = @project.name_with_namespace + " export"
+%p
+  The download link will expire in 24 hours.
diff --git a/app/views/notify/project_was_exported_email.text.erb b/app/views/notify/project_was_exported_email.text.erb
new file mode 100644
index 00000000000..42c4d176876
--- /dev/null
+++ b/app/views/notify/project_was_exported_email.text.erb
@@ -0,0 +1,6 @@
+Project <%= @project.name %> was exported successfully.
+
+The project export can be downloaded from:
+<%= download_export_namespace_project_url(@project.namespace, @project) %>
+
+The download link will expire in 24 hours.
diff --git a/app/views/notify/project_was_not_exported_email.html.haml b/app/views/notify/project_was_not_exported_email.html.haml
new file mode 100644
index 00000000000..c9e9ade2cf1
--- /dev/null
+++ b/app/views/notify/project_was_not_exported_email.html.haml
@@ -0,0 +1,9 @@
+%p
+  Project #{@project.name} couldn't be exported.
+%p
+  The errors we encountered were:
+
+  %ul
+  - @errors.each do |error|
+    %li
+      error
diff --git a/app/views/notify/project_was_not_exported_email.text.erb b/app/views/notify/project_was_not_exported_email.text.erb
new file mode 100644
index 00000000000..a07f6edacf7
--- /dev/null
+++ b/app/views/notify/project_was_not_exported_email.text.erb
@@ -0,0 +1,6 @@
+Project <%= @project.name %> couldn't be exported.
+
+The errors we encountered were:
+
+- @errors.each do |error|
+<%= error %>
\ No newline at end of file
diff --git a/app/views/projects/edit.html.haml b/app/views/projects/edit.html.haml
index 8449fe1e4e0..27a94fe02dc 100644
--- a/app/views/projects/edit.html.haml
+++ b/app/views/projects/edit.html.haml
@@ -120,6 +120,42 @@
       = link_to 'Housekeeping', housekeeping_namespace_project_path(@project.namespace, @project),
           method: :post, class: "btn btn-save"
   %hr
+  .row.prepend-top-default
+    .col-lg-3
+      %h4.prepend-top-0
+        Export project
+      %p.append-bottom-0
+        %p
+          Export this project with all its related data in order to move your project to a new GitLab instance. Once the export is finished, you can import the file from the "New Project" page.
+        %p
+          Once the exported file is ready, you will receive a notification email with a download link.
+
+    .col-lg-9
+
+      - if @project.export_project_path
+        = link_to 'Download export',  download_export_namespace_project_path(@project.namespace, @project),
+                method: :get, class: "btn btn-default"
+        = link_to 'Generate new export',  generate_new_export_namespace_project_path(@project.namespace, @project),
+                method: :post, class: "btn btn-default"
+      - else
+        = link_to 'Export project', export_namespace_project_path(@project.namespace, @project),
+                method: :post, class: "btn btn-default"
+
+      .bs-callout.bs-callout-info
+        %p.append-bottom-0
+          %p
+            The following items will be exported:
+          %ul
+            %li Project and wiki repositories
+            %li Project uploads
+            %li Project configuration including web hooks and services
+            %li Issues with comments, merge requests with diffs and comments, labels, milestones, snippets, and other project entities
+          %p
+            The following items will NOT be exported:
+          %ul
+            %li Build traces and artifacts
+            %li LFS objects
+  %hr
   - if can? current_user, :archive_project, @project
     .row.prepend-top-default
       .col-lg-3
diff --git a/app/views/projects/imports/show.html.haml b/app/views/projects/imports/show.html.haml
index c0d1ce0d120..4d8ee562e6a 100644
--- a/app/views/projects/imports/show.html.haml
+++ b/app/views/projects/imports/show.html.haml
@@ -7,7 +7,7 @@
         Forking in progress.
       - else
         Import in progress.
-    - unless @project.forked?
+    - if @project.external_import?
       %p.monospace git clone --bare #{@project.safe_import_url}
     %p Please wait while we import the repository for you. Refresh at will.
     :javascript
diff --git a/app/views/projects/new.html.haml b/app/views/projects/new.html.haml
index f9ac16b32f3..8ce0dbb1f7f 100644
--- a/app/views/projects/new.html.haml
+++ b/app/views/projects/new.html.haml
@@ -88,7 +88,12 @@
               - if git_import_enabled?
                 = link_to "#", class: 'btn js-toggle-button import_git' do
                   %i.fa.fa-git
-                  %span Any repo by URL
+                  %span Repo by URL
+
+              - if gitlab_project_import_enabled?
+                = link_to new_import_gitlab_project_path, class: 'btn import_gitlab_project project-submit' do
+                  %i.fa.fa-gitlab
+                  %span GitLab export
 
           .js-toggle-content.hide
             = render "shared/import_form", f: f
@@ -119,6 +124,33 @@
     e.preventDefault();
     var import_modal = $(this).next(".modal").show();
   });
+
   $('.modal-header .close').bind('click', function() {
     $(".modal").hide();
   });
+
+  $('.import_gitlab_project').bind('click', function() {
+    var _href = $("a.import_gitlab_project").attr("href");
+    $(".import_gitlab_project").attr("href", _href + '?namespace_id=' + $("#project_namespace_id").val() + '&path=' + $("#project_path").val());
+  });
+
+  $('.import_gitlab_project').attr('disabled',true)
+  $('.import_gitlab_project').attr('title', 'Project path required.');
+
+  $('.import_gitlab_project').click(function( event ) {
+    if($('.import_gitlab_project').attr('disabled')) {
+      event.preventDefault();
+      new Flash("Please enter a path for the project to be imported to.");
+    }
+  });
+
+  $('#project_path').keyup(function(){
+    if($(this).val().length !=0) {
+      $('.import_gitlab_project').attr('disabled', false);
+      $('.import_gitlab_project').attr('title','');
+      $(".flash-container").html("")
+    } else {
+      $('.import_gitlab_project').attr('disabled',true);
+      $('.import_gitlab_project').attr('title', 'Project path required.');
+    }
+  })