Fix commands, the easy way.

Don't use pluginhook to run the commands hook, just run all the scripts
in a loop.

dokku

@@ -100,7 +100,9 @@ EOF
     ;;
 
   *)
-    pluginhook commands "$@"
+    for script in $(ls -d /var/lib/dokku/plugins/*/commands); do
+      $script "$@"
+    done
     ;;
 
 esac

plugins/00_dokku-standard/commands

@@ -84,4 +84,4 @@ EOF
     ;;
 
 esac
-cat
+

plugins/backup/commands

@@ -75,4 +75,4 @@ EOF
     ;;
 
 esac
-cat
+

plugins/config/commands

@@ -173,4 +173,4 @@ EOF
   ;;
 
 esac
-cat
+

plugins/git/commands

@@ -35,6 +35,8 @@ EOF
     git-shell -c "$args"
     ;;
 
+  help)
+    cat
+    ;;
 esac
-cat
 

plugins/nginx-vhosts/commands

@@ -1,3 +1,2 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-cat