[Backported from EE] Readonly flag for Projects

db/migrate/20160713200638_add_repository_read_only_to_projects.rb

+class AddRepositoryReadOnlyToProjects < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    add_column :projects, :repository_read_only, :boolean
+  end
+end

db/schema.rb

@@ -1215,6 +1215,7 @@ ActiveRecord::Schema.define(version: 20170921115009) do
     t.datetime "last_repository_updated_at"
     t.integer "storage_version", limit: 2
     t.boolean "resolve_outdated_diff_discussions"
+    t.boolean "repository_read_only"
   end
 
   add_index "projects", ["ci_id"], name: "index_projects_on_ci_id", using: :btree

lib/gitlab/git_access.rb

@@ -16,7 +16,8 @@ module Gitlab
       account_blocked: 'Your account has been blocked.',
       command_not_allowed: "The command you're trying to execute is not allowed.",
       upload_pack_disabled_over_http: 'Pulling over HTTP is not allowed.',
-      receive_pack_disabled_over_http: 'Pushing over HTTP is not allowed.'
+      receive_pack_disabled_over_http: 'Pushing over HTTP is not allowed.',
+      readonly: 'The repository is temporarily read-only. Please try again later.'
     }.freeze
 
     DOWNLOAD_COMMANDS = %w{ git-upload-pack git-upload-archive }.freeze
@@ -159,6 +160,10 @@ module Gitlab
     end
 
     def check_push_access!(changes)
+      if project.repository_read_only?
+        raise UnauthorizedError, ERROR_MESSAGES[:readonly]
+      end
+
       if deploy_key
         check_deploy_key_push_access!
       elsif user

spec/factories/projects.rb

@@ -143,6 +143,10 @@ FactoryGirl.define do
       end
     end
 
+    trait :read_only_repository do
+      repository_read_only true
+    end
+
     trait :broken_repo do
       after(:create) do |project|
         raise "Failed to create repository!" unless project.create_repository

spec/lib/gitlab/shell_spec.rb

@@ -48,6 +48,26 @@ describe Gitlab::Shell do
     end
   end
 
+  describe 'projects commands' do
+    let(:gitlab_shell_path) { File.expand_path('tmp/tests/gitlab-shell') }
+    let(:projects_path) { File.join(gitlab_shell_path, 'bin/gitlab-projects') }
+    let(:gitlab_shell_hooks_path) { File.join(gitlab_shell_path, 'hooks') }
+
+    before do
+      allow(Gitlab.config.gitlab_shell).to receive(:path).and_return(gitlab_shell_path)
+      allow(Gitlab.config.gitlab_shell).to receive(:hooks_path).and_return(gitlab_shell_hooks_path)
+      allow(Gitlab.config.gitlab_shell).to receive(:git_timeout).and_return(800)
+    end
+
+    describe '#mv_repository' do
+      it 'executes the command' do
+        expect(gitlab_shell).to receive(:gitlab_shell_fast_execute).with(
+          [projects_path, 'mv-project', 'storage/path', 'project/path.git', 'new/path.git']
+        )
+        gitlab_shell.mv_repository('storage/path', 'project/path', 'new/path')
+      end
+    end
+
     describe '#add_key' do
       it 'removes trailing garbage' do
         allow(gitlab_shell).to receive(:gitlab_shell_keys_path).and_return(:gitlab_shell_keys_path)
@@ -58,6 +78,7 @@ describe Gitlab::Shell do
         gitlab_shell.add_key('key-123', 'ssh-rsa foobar trailing garbage')
       end
     end
+  end
 
   describe Gitlab::Shell::KeyAdder do
     describe '#add_key' do