Setup Phabricator import

This sets up all the basics for importing Phabricator tasks into
GitLab issues.

To import all tasks from a Phabricator instance into GitLab, we'll
import all of them into a new project that will have its repository
disabled.

The import is hooked into a regular ProjectImport setup, but similar
to the GitHub parallel importer takes care of all the imports itself.

In this iteration, we're importing each page of tasks in a separate
sidekiq job.

The first thing we do when requesting a new page of tasks is schedule
the next page to be imported. But to avoid deadlocks, we only allow a
single job per worker type to run at the same time.

For now we're only importing basic Issue information, this should be
extended to richer information.

1 files changed, 7 insertions, 0 deletions

diff --git a/app/views/projects/_import_project_pane.html.haml b/app/views/projects/_import_project_pane.html.haml
index 9c854369c93..b5678b56ca6 100644
--- a/app/views/projects/_import_project_pane.html.haml
+++ b/app/views/projects/_import_project_pane.html.haml
@@ -63,6 +63,13 @@
           = link_to new_import_manifest_path, class: 'btn import_manifest', data: { track_label: "#{track_label}", track_event: "click_button", track_property: "manifest_file" } do
             = icon('file-text-o', text: 'Manifest file')
 
+      - if phabricator_import_enabled?
+        %div
+          = link_to new_import_phabricator_path, class: 'btn import_phabricator', data: { track_label: "#{track_label}", track_event: "click_button", track_property: "phabricator" } do
+            = custom_icon('issues')
+            = _("Phabricator Tasks")
+
+
   .js-toggle-content.toggle-import-form{ class: ('hide' if active_tab != 'import') }
     = form_for @project, html: { class: 'new_project' } do |f|
       %hr