Check that project was actually created rather than just validated in import:repos task

Add gitlab-shell to error message to give user a clue that something may be wrong there.

Ran into this in #2082. User was told that repositories were created when they were
not due to hooks symlink being wrong.

CHANGELOG

@@ -4,6 +4,7 @@ v 7.14.0 (unreleased)
   - Upgrade gitlab_git to version 7.2.6 to fix Error 500 when creating network graphs (Stan Hu)
   - Fix URL used for refreshing notes if relative_url is present (Bartłomiej Święcki)
   - Fix commit data retrieval when branch name has single quotes (Stan Hu)
+  - Check that project was actually created rather than just validated in import:repos task (Stan Hu)
   - Fix full screen mode for snippet comments (Daniel Gerhardt)
   - Fix 404 error in files view after deleting the last file in a repository (Stan Hu)
   - Fix the "Reload with full diff" URL button (Stan Hu)

app/models/project.rb

@@ -705,14 +705,14 @@ class Project < ActiveRecord::Base
         ensure_satellite_exists
         true
       else
-        errors.add(:base, 'Failed to fork repository')
+        errors.add(:base, 'Failed to fork repository via gitlab-shell')
         false
       end
     else
       if gitlab_shell.add_repository(path_with_namespace)
         true
       else
-        errors.add(:base, 'Failed to create repository')
+        errors.add(:base, 'Failed to create repository via gitlab-shell')
         false
       end
     end

lib/tasks/gitlab/import.rake

@@ -62,11 +62,11 @@ namespace :gitlab do
 
           project = Projects::CreateService.new(user, project_params).execute
 
-          if project.valid?
+          if project.persisted?
             puts " * Created #{project.name} (#{repo_path})".green
           else
             puts " * Failed trying to create #{project.name} (#{repo_path})".red
-            puts "   Validation Errors: #{project.errors.messages}".red
+            puts "   Errors: #{project.errors.messages}".red
           end
         end
       end

spec/services/projects/fork_service_spec.rb

@@ -29,7 +29,7 @@ describe Projects::ForkService do
       it "fails due to transaction failure" do
         @to_project = fork_project(@from_project, @to_user, false)
         expect(@to_project.errors).not_to be_empty
-        expect(@to_project.errors[:base]).to include("Failed to fork repository")
+        expect(@to_project.errors[:base]).to include("Failed to fork repository via gitlab-shell")
       end
     end