dbshell.rake: Add alias to `rake db:shell`

Provide two ways of accessing the task. One saves a character (":") and
is reminiscent of the Django command that this project is inspired by.
The other is more Rails-like and is consistent with the other
`db:`-prefixed Rails Rake tasks.

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/dbshell/rails/tasks/dbshell.rake b/lib/dbshell/rails/tasks/dbshell.rake
index cc898a4..44d7948 100644
--- a/lib/dbshell/rails/tasks/dbshell.rake
+++ b/lib/dbshell/rails/tasks/dbshell.rake
@@ -7,3 +7,8 @@ task :dbshell do
     Rails.application.config.database_configuration[env]
   )
 end
+
+# Alias 'dbshell' to 'db:shell'
+namespace :db do
+  task shell: :dbshell
+end