more style/function tweaks

plugins/apps/functions

@@ -13,3 +13,35 @@ apps_create() {
   echo "Creating $APP... done"
   plugn trigger post-create "$APP"
 }
+
+apps_destroy() {
+  local APP="$1"; local IMAGE_TAG=$(get_running_image_tag "$APP")
+  verify_app_name "$APP"
+
+  if [[ -z "$DOKKU_APPS_FORCE_DELETE" ]]; then
+    dokku_log_warn "WARNING: Potentially Destructive Action"
+    dokku_log_warn "This command will destroy $APP (including all add-ons)."
+    dokku_log_warn "To proceed, type \"$APP\""
+    echo ""
+
+    read -rp "> " app_name
+    if [[ "$app_name" != "$APP" ]]; then
+      dokku_log_fail "Confirmation did not match $APP. Aborted."
+    fi
+  fi
+
+  echo "Destroying $APP (including all add-ons)"
+
+  plugn trigger pre-delete "$APP" "$IMAGE_TAG"
+  local DOKKU_APP_CIDS=$(get_app_container_ids "$APP")
+  local cid
+
+  if [[ -n $DOKKU_APP_CIDS ]]; then
+    for cid in $DOKKU_APP_CIDS; do
+      docker stop "$cid" > /dev/null || true
+      docker rm "$cid"  > /dev/null || true
+    done
+  fi
+
+  plugn trigger post-delete "$APP" "$IMAGE_TAG"
+}