10 files changed, 177 insertions, 93 deletions

diff --git a/app/services/projects/create_from_template_service.rb b/app/services/projects/create_from_template_service.rb
index f5c48e56880..8306d43ca7c 100644
--- a/app/services/projects/create_from_template_service.rb
+++ b/app/services/projects/create_from_template_service.rb
@@ -2,21 +2,27 @@
 
 module Projects
   class CreateFromTemplateService < BaseService
+    include Gitlab::Utils::StrongMemoize
+
     def initialize(user, params)
       @current_user, @params = user, params.dup
     end
 
     def execute
-      template_name = params.delete(:template_name)
-      file = Gitlab::ProjectTemplate.find(template_name).file
+      file = Gitlab::ProjectTemplate.find(template_name)&.file
 
       override_params = params.dup
       params[:file] = file
 
       GitlabProjectsImportService.new(current_user, params, override_params).execute
-
     ensure
       file&.close
     end
+
+    def template_name
+      strong_memoize(:template_name) do
+        params.delete(:template_name).presence
+      end
+    end
   end
 end
diff --git a/app/services/projects/gitlab_projects_import_service.rb b/app/services/projects/gitlab_projects_import_service.rb
index bc6e9caebb8..615dccc4685 100644
--- a/app/services/projects/gitlab_projects_import_service.rb
+++ b/app/services/projects/gitlab_projects_import_service.rb
@@ -5,6 +5,9 @@
 # The latter will under the hood just import an archive supplied by GitLab.
 module Projects
   class GitlabProjectsImportService
+    include Gitlab::Utils::StrongMemoize
+    include Gitlab::TemplateHelper
+
     attr_reader :current_user, :params
 
     def initialize(user, import_params, override_params = nil)
@@ -12,39 +15,17 @@ module Projects
     end
 
     def execute
-      FileUtils.mkdir_p(File.dirname(import_upload_path))
-
-      file = params.delete(:file)
-      FileUtils.copy_entry(file.path, import_upload_path)
-
-      @overwrite = params.delete(:overwrite)
-      data = {}
-      data[:override_params] = @override_params if @override_params
-
-      if overwrite_project?
-        data[:original_path] = params[:path]
-        params[:path] += "-#{tmp_filename}"
-      end
+      prepare_template_environment(template_file&.path)
 
-      params[:import_type] = 'gitlab_project'
-      params[:import_source] = import_upload_path
-      params[:import_data] = { data: data } if data.present?
+      prepare_import_params
 
       ::Projects::CreateService.new(current_user, params).execute
     end
 
     private
 
-    def import_upload_path
-      @import_upload_path ||= Gitlab::ImportExport.import_upload_path(filename: tmp_filename)
-    end
-
-    def tmp_filename
-      SecureRandom.hex
-    end
-
     def overwrite_project?
-      @overwrite && project_with_same_full_path?
+      overwrite? && project_with_same_full_path?
     end
 
     def project_with_same_full_path?
@@ -52,7 +33,38 @@ module Projects
     end
 
     def current_namespace
-      @current_namespace ||= Namespace.find_by(id: params[:namespace_id])
+      strong_memoize(:current_namespace) do
+        Namespace.find_by(id: params[:namespace_id])
+      end
+    end
+
+    def overwrite?
+      strong_memoize(:overwrite) do
+        params.delete(:overwrite)
+      end
+    end
+
+    def template_file
+      strong_memoize(:template_file) do
+        params.delete(:file)
+      end
+    end
+
+    def prepare_import_params
+      data = {}
+      data[:override_params] = @override_params if @override_params
+
+      if overwrite_project?
+        data[:original_path] = params[:path]
+        params[:path] += "-#{tmp_filename}"
+      end
+
+      if template_file
+        params[:import_type] = 'gitlab_project'
+        params[:import_source] = import_upload_path
+      end
+
+      params[:import_data] = { data: data } if data.present?
     end
   end
 end
diff --git a/app/workers/repository_import_worker.rb b/app/workers/repository_import_worker.rb
index 8c64c513c74..82189a3c9f5 100644
--- a/app/workers/repository_import_worker.rb
+++ b/app/workers/repository_import_worker.rb
@@ -7,9 +7,9 @@ class RepositoryImportWorker
   include ProjectImportOptions
 
   def perform(project_id)
-    project = Project.find(project_id)
+    @project = Project.find(project_id)
 
-    return unless start_import(project)
+    return unless start_import
 
     Gitlab::Metrics.add_event(:import_repository)
 
@@ -21,7 +21,7 @@ class RepositoryImportWorker
     return if service.async?
 
     if result[:status] == :error
-      fail_import(project, result[:message]) if project.gitlab_project_import?
+      fail_import(result[:message]) if template_import?
 
       raise result[:message]
     end
@@ -31,14 +31,20 @@ class RepositoryImportWorker
 
   private
 
-  def start_import(project)
+  attr_reader :project
+
+  def start_import
     return true if start(project)
 
     Rails.logger.info("Project #{project.full_path} was in inconsistent state (#{project.import_status}) while importing.")
     false
   end
 
-  def fail_import(project, message)
+  def fail_import(message)
     project.mark_import_as_failed(message)
   end
+
+  def template_import?
+    project.gitlab_project_import?
+  end
 end
diff --git a/doc/administration/index.md b/doc/administration/index.md
index 88190b2df5f..112d14652af 100644
--- a/doc/administration/index.md
+++ b/doc/administration/index.md
@@ -106,6 +106,7 @@ created in snippets, wikis, and repos.
 - [Gitaly](gitaly/index.md): Configuring Gitaly, GitLab's Git repository storage service.
 - [Default labels](../user/admin_area/labels.html): Create labels that will be automatically added to every new project.
 - [Restrict the use of public or internal projects](../public_access/public_access.md#restricting-the-use-of-public-or-internal-projects): Restrict the use of visibility levels for users when they create a project or a snippet.
+- [Custom project templates](https://docs.gitlab.com/ee/user/admin_area/custom_project_templates.html): Configure a set of projects to be used as custom templates when creating a new project. **[PREMIUM ONLY]**
 
 ### Repository settings
 
diff --git a/doc/gitlab-basics/create-project.md b/doc/gitlab-basics/create-project.md
index dd8d95a3bca..2517908e5b1 100644
--- a/doc/gitlab-basics/create-project.md
+++ b/doc/gitlab-basics/create-project.md
@@ -43,7 +43,7 @@
 When you create a new repo locally, instead of going to GitLab to manually
 create a new project and then push the repo, you can directly push it to
 GitLab to create the new project, all without leaving your terminal. If you have access to that
-namespace, we will automatically create a new project under that GitLab namespace with its 
+namespace, we will automatically create a new project under that GitLab namespace with its
 visibility set to Private by default (you can later change it in the [project's settings](../public_access/public_access.md#how-to-change-project-visibility)).
 
 This can be done by using either SSH or HTTP:
diff --git a/lib/gitlab/import_sources.rb b/lib/gitlab/import_sources.rb
index af9b880ef9e..45816bee176 100644
--- a/lib/gitlab/import_sources.rb
+++ b/lib/gitlab/import_sources.rb
@@ -22,24 +22,28 @@ module Gitlab
 
     class << self
       def options
-        @options ||= Hash[ImportTable.map { |importer| [importer.title, importer.name] }]
+        Hash[import_table.map { |importer| [importer.title, importer.name] }]
       end
 
       def values
-        @values ||= ImportTable.map(&:name)
+        import_table.map(&:name)
       end
 
       def importer_names
-        @importer_names ||= ImportTable.select(&:importer).map(&:name)
+        import_table.select(&:importer).map(&:name)
       end
 
       def importer(name)
-        ImportTable.find { |import_source| import_source.name == name }.importer
+        import_table.find { |import_source| import_source.name == name }.importer
       end
 
       def title(name)
         options.key(name)
       end
+
+      def import_table
+        ImportTable
+      end
     end
   end
 end
diff --git a/lib/gitlab/template_helper.rb b/lib/gitlab/template_helper.rb
new file mode 100644
index 00000000000..3b8e45e0688
--- /dev/null
+++ b/lib/gitlab/template_helper.rb
@@ -0,0 +1,22 @@
+module Gitlab
+  module TemplateHelper
+    include Gitlab::Utils::StrongMemoize
+
+    def prepare_template_environment(file_path)
+      return unless file_path.present?
+
+      FileUtils.mkdir_p(File.dirname(import_upload_path))
+      FileUtils.copy_entry(file_path, import_upload_path)
+    end
+
+    def import_upload_path
+      strong_memoize(:import_upload_path) do
+        Gitlab::ImportExport.import_upload_path(filename: tmp_filename)
+      end
+    end
+
+    def tmp_filename
+      SecureRandom.hex
+    end
+  end
+end
diff --git a/spec/services/projects/create_from_template_service_spec.rb b/spec/services/projects/create_from_template_service_spec.rb
index a43da01f37e..141ccf7c4d8 100644
--- a/spec/services/projects/create_from_template_service_spec.rb
+++ b/spec/services/projects/create_from_template_service_spec.rb
@@ -2,10 +2,11 @@ require 'spec_helper'
 
 describe Projects::CreateFromTemplateService do
   let(:user) { create(:user) }
+  let(:template_name) { 'rails' }
   let(:project_params) do
     {
         path: user.to_param,
-        template_name: 'rails',
+        template_name: template_name,
         description: 'project description',
         visibility_level: Gitlab::VisibilityLevel::PUBLIC
     }
@@ -14,7 +15,10 @@ describe Projects::CreateFromTemplateService do
   subject { described_class.new(user, project_params) }
 
   it 'calls the importer service' do
-    expect_any_instance_of(Projects::GitlabProjectsImportService).to receive(:execute)
+    import_service_double = double
+
+    allow(Projects::GitlabProjectsImportService).to receive(:new).and_return(import_service_double)
+    expect(import_service_double).to receive(:execute)
 
     subject.execute
   end
@@ -26,6 +30,31 @@ describe Projects::CreateFromTemplateService do
     expect(project.import_scheduled?).to be(true)
   end
 
+  context 'when template is not present' do
+    let(:template_name) { 'non_existent' }
+    let(:project) { subject.execute }
+
+    before do
+      expect(project).to be_saved
+    end
+
+    it 'does not set import set import type' do
+      expect(project.import_type).to be nil
+    end
+
+    it 'does not set import set import source' do
+      expect(project.import_source).to be nil
+    end
+
+    it 'is not scheduled' do
+      expect(project.import_scheduled?).to be(false)
+    end
+
+    it 'repository is empty' do
+      expect(project.repository.empty?).to be(true)
+    end
+  end
+
   context 'the result project' do
     before do
       perform_enqueued_jobs do
diff --git a/spec/services/projects/gitlab_projects_import_service_spec.rb b/spec/services/projects/gitlab_projects_import_service_spec.rb
index 0a898e9b89b..a2061127698 100644
--- a/spec/services/projects/gitlab_projects_import_service_spec.rb
+++ b/spec/services/projects/gitlab_projects_import_service_spec.rb
@@ -6,60 +6,10 @@ describe Projects::GitlabProjectsImportService do
   let(:file) { fixture_file_upload('spec/fixtures/doc_sample.txt', 'text/plain') }
   let(:overwrite) { false }
   let(:import_params) { { namespace_id: namespace.id, path: path, file: file, overwrite: overwrite } }
+
   subject { described_class.new(namespace.owner, import_params) }
 
   describe '#execute' do
-    context 'with an invalid path' do
-      let(:path) { '/invalid-path/' }
-
-      it 'returns an invalid project' do
-        project = subject.execute
-
-        expect(project).not_to be_persisted
-        expect(project).not_to be_valid
-      end
-    end
-
-    context 'with a valid path' do
-      it 'creates a project' do
-        project = subject.execute
-
-        expect(project).to be_persisted
-        expect(project).to be_valid
-      end
-    end
-
-    context 'override params' do
-      it 'stores them as import data when passed' do
-        project = described_class
-                    .new(namespace.owner, import_params, description: 'Hello')
-                    .execute
-
-        expect(project.import_data.data['override_params']['description']).to eq('Hello')
-      end
-    end
-
-    context 'when there is a project with the same path' do
-      let(:existing_project) { create(:project, namespace: namespace) }
-      let(:path) { existing_project.path}
-
-      it 'does not create the project' do
-        project = subject.execute
-
-        expect(project).to be_invalid
-        expect(project).not_to be_persisted
-      end
-
-      context 'when overwrite param is set' do
-        let(:overwrite) { true }
-
-        it 'creates a project in a temporary full_path' do
-          project = subject.execute
-
-          expect(project).to be_valid
-          expect(project).to be_persisted
-        end
-      end
-    end
+    it_behaves_like 'gitlab projects import validations'
   end
 end
diff --git a/spec/support/shared_examples/gitlab_projects_import_service_shared_examples.rb b/spec/support/shared_examples/gitlab_projects_import_service_shared_examples.rb
new file mode 100644
index 00000000000..b8db35a6ef9
--- /dev/null
+++ b/spec/support/shared_examples/gitlab_projects_import_service_shared_examples.rb
@@ -0,0 +1,54 @@
+shared_examples 'gitlab projects import validations' do
+  context 'with an invalid path' do
+    let(:path) { '/invalid-path/' }
+
+    it 'returns an invalid project' do
+      project = subject.execute
+
+      expect(project).not_to be_persisted
+      expect(project).not_to be_valid
+    end
+  end
+
+  context 'with a valid path' do
+    it 'creates a project' do
+      project = subject.execute
+
+      expect(project).to be_persisted
+      expect(project).to be_valid
+    end
+  end
+
+  context 'override params' do
+    it 'stores them as import data when passed' do
+      project = described_class
+                  .new(namespace.owner, import_params, description: 'Hello')
+                  .execute
+
+      expect(project.import_data.data['override_params']['description']).to eq('Hello')
+    end
+  end
+
+  context 'when there is a project with the same path' do
+    let(:existing_project) { create(:project, namespace: namespace) }
+    let(:path) { existing_project.path}
+
+    it 'does not create the project' do
+      project = subject.execute
+
+      expect(project).to be_invalid
+      expect(project).not_to be_persisted
+    end
+
+    context 'when overwrite param is set' do
+      let(:overwrite) { true }
+
+      it 'creates a project in a temporary full_path' do
+        project = subject.execute
+
+        expect(project).to be_valid
+        expect(project).to be_persisted
+      end
+    end
+  end
+end