commands

#!/usr/bin/env bash
set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
# domains [appname] - list all domain names
# domains:help
# domains:add [appname] DOMAIN
# domains:clear [appname]
# domains:remove [appname] DOMAIN
APP_NAME="$2"
APP_PATH="$DOKKU_ROOT/$APP_NAME"
VHOST_PATH="$APP_PATH/VHOST"

if [[ $1 == 'domains' ]] || [[ $1 == 'domains:*' ]]; then
  # Check that app name is passed
  if [[ -z $APP_NAME ]]; then
    echo "You must specify an app name."
    exit 1
  fi

  # Check that app exists
  if [[ ! -d $APP_PATH ]]; then
    echo "App $APP_NAME does not exist."
    exit 1
  fi

  # Make sure VHOST file exists. Create empty file if not.
  if [[ ! -f $VHOST_PATH ]]; then
    echo "-----> Creating new $VHOST_PATH..."
    touch $VHOST_PATH
  fi
fi

case "$1" in
  # List all domain names for given app
  domains)
    echo "=== $APP_NAME Domain Names"
    cat $VHOST_PATH
  ;;

  domains:add)
    if [[ -z $3 ]]; then
      echo "Usage: dokku $1 $2 DOMAIN"
      echo "Must specify DOMAIN."
      exit 1
    fi

    # TODO: Check if domain already exists

    # Append domain to VHOST
    echo "$3" >> $VHOST_PATH
    echo "-----> Added $3 to $VHOST_PATH..."
  ;;

  domains:clear)
    echo '' > $VHOST_PATH
    echo "-----> Cleared domains in $VHOST_PATH..."
  ;;

  domains:remove)
    if [[ -z $3 ]]; then
      echo "Usage: dokku $1 $2 DOMAIN"
      echo "Must specify DOMAIN."
      exit 1
    fi

    # Remove domain from VHOST
    sed -i "/^$3$/d" $VHOST_PATH
    echo "-----> Removed $3 from $VHOST_PATH..."
  ;;

  help | domains:help)
    cat <<EOF
    domains <appname>               # list custom domains for app
    domains:help <appname>          # this help message
    domains:add <appname> DOMAIN    # add a custom domain to app
    domains:clear <appname>         # clear all custom domains for app
    domains:remove <appname> DOMAIN # remove a custom domain from app
EOF
  ;;
esac