adding some basic help, also as another example of using plugin hooks

dokku

@@ -1,12 +1,12 @@
 #!/bin/bash
 set -e
-export PLUGIN_PATH="/var/lib/dokku/plugins"
+export PLUGIN_PATH=${PLUGIN_PATH:="/var/lib/dokku/plugins"}
 case "$1" in
   receive)
     APP="$2"; IMAGE="app/$APP"
     echo "-----> Building $APP ..."
     cat | dokku build $IMAGE
-    echo "=====> Build complete!"
+    echo "-----> Build complete!"
     echo "-----> Deploying $APP ..."
     dokku deploy $APP $IMAGE
     echo "=====> Application deployed:"
@@ -45,6 +45,16 @@ case "$1" in
     pluginhook post-deploy $APP $port
     ;;
 
+  plugins) ls -1 -d $PLUGIN_PATH/*/
+    ;;
+
+  help)
+    cat<<EOF | pluginhook commands help | sort
+    help            Print the list of commands
+    plugins         Print active plugins
+EOF
+    ;;
+
   *)
     pluginhook commands "$@"
     ;;

plugins/00_dokku-standard/commands

@@ -8,5 +8,12 @@ set -e; case "$1" in
   url)
     echo "http://$(< "/home/git/$2/ADDRESS")"
     ;;
+  
+  help)
+    cat && cat<<EOF
+    logs <app>      Show the last logs for an application
+    url <app>       Show the URL for an application
+EOF
+    ;;
 
 esac

plugins/nginx-vhosts/commands

@@ -8,5 +8,8 @@ set -e; case "$1" in
       cat
     fi
     ;;
+    
+  help) cat
+    ;;
 
 esac