diff --git a/.hgignore b/.hgignore
new file mode 100644
index 000000000..cded71b38
--- /dev/null
+++ b/.hgignore
@@ -0,0 +1,22 @@
+syntax: glob
+
+config/additional_environment.rb
+config/database.yml
+config/email.yml
+config/initializers/session_store.rb
+coverage
+db/*.db
+db/*.sqlite3
+db/schema.rb
+files/*
+log/*.log*
+log/mongrel_debug
+public/dispatch.*
+public/plugin_assets
+tmp/*
+tmp/cache/*
+tmp/sessions/*
+tmp/sockets/*
+tmp/test/*
+vendor/rails
+*.rbc