Merge branch 'db-consoles' into 'master'

Add psql, redis-cli subcommands

This makes it easier to connect to the Postgres, Redis databases spawned by `gdk run db`.

See merge request !211

HELP

@@ -7,5 +7,7 @@ gdk run app        # Start GitLab, needs 'gdk run db'
 gdk install gitlab_repo=https://my-fork   # Install everything
 gdk update                                # Pull application changes from Git
 gdk reconfigure                           # Delete and regenerate all config files created by GDK
+gdk psql -d gitlabhq_development          # Postgres console
+gdk redis-cli                             # Redis console
 # Development admin account: root / 5iveL!fe

lib/gdk.rb

@@ -29,11 +29,15 @@ module GDK
     when 'reconfigure'
       remember!($gdk_root)
       exec(MAKE, 'clean-config', 'all', chdir: $gdk_root)
+    when 'psql'
+      exec('psql', '-h', File.join($gdk_root, 'postgresql'), *ARGV, chdir: $gdk_root)
+    when 'redis-cli'
+      exec('redis-cli', '-s', File.join($gdk_root, 'redis/redis.socket'), *ARGV, chdir: $gdk_root)
     when 'help'
       puts File.read(File.join($gdk_root, 'HELP'))
       true
     else
-      puts "Usage: #{PROGNAME} run|init|install|update|reconfigure|version|help [ARGS...]"
+      puts "Usage: #{PROGNAME} run|init|install|update|reconfigure|psql|redis-cli|version|help [ARGS...]"
       false
     end
   end