Add mechanism for running migrations of developer workspaces

rakefiles/workspace.rake

@@ -0,0 +1,16 @@
+MIGRATION_MARKER_DIR = File.join(REPO_ROOT, '.ws_migrations_complete')
+SKIP_MIGRATIONS = ENV['SKIP_WS_MIGRATIONS'] || false
+
+directory MIGRATION_MARKER_DIR
+
+namespace :ws do
+    task :migrate => MIGRATION_MARKER_DIR do
+        Dir['ws_migrations/*'].select{|m| File.executable?(m)}.each do |migration|
+            completion_file = File.join(MIGRATION_MARKER_DIR, File.basename(migration))
+            if ! File.exist?(completion_file)
+                sh(migration)
+                File.write(completion_file, "")
+            end
+        end unless SKIP_MIGRATIONS
+    end
+end