commands

#!/usr/bin/env bash
set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x

PLUGIN_DIR=$(dirname $0)
. "$PLUGIN_DIR/lib/helpers"

DOKKU_ROOT=${DOKKU_ROOT:-/home/dokku}
CACHE_DIR="$DOKKU_ROOT/.cache"

case "$1" in
  scale)
    if [[ -z $2 ]]; then
      echo "Please specify an app to scale"
      exit 1
    fi
    APP="$2"
    IMAGE="dokku/$APP"
    REPO="$DOKKU_ROOT/$APP"
    if [ ! -d "$REPO" ]; then
      echo "No matching app: $APP"
      exit 1
    fi
    shift 2

    SCALEFILE="$REPO/SCALE"
    for line in "$@"
    do
      echo "$line"
    done > "$SCALEFILE"

    # kill the app when running
    echo "Checking for existing running application"
    if [[ -f "$DOKKU_ROOT/$APP/CONTAINER" ]]; then
      echo "Existing running application found. Will kill it."
      oldid=$(< "$DOKKU_ROOT/$APP/CONTAINER")
      docker kill $oldid > /dev/null 2>&1 || true
      echo "Killed running application."
    fi

    echo "Scaling app $APP:"
    cat -n "$REPO/SCALE"
    copy_to_container "$SCALEFILE" /SCALE

    dokku deploy "$APP"
    ;;

  forego:update)
    update_forego $CACHE_DIR/forego
    ;;

  forego:version)
    echo -n "forego version: "
    if [ -e $CACHE_DIR/forego ]; then
        $CACHE_DIR/forego version
    else
        echo "forego binary not found in $CACHE_DIR/"
        echo "You can run forego:update or re-release any container to install the latest forego binary."
    fi
    ;;

  help)
    cat && cat<<EOF
    scale <app> TYPE1=NUM1 [TYPE2=NUM2 ...]         Scale an app
    forego:update                                   Update the forego binary. Changes take effect in containers on the next release.
    forego:version                                  Show the forego binary version
EOF
  ;;

esac