#!/usr/bin/env bash
set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
source "$PLUGIN_AVAILABLE_PATH/config/functions"

build_env_pre_build_buildpack() {
  declare desc="build-env pre-build-buildpack plugin trigger"
  local trigger="build_env_pre_build_buildpack"
  local APP="$1"
  local IMAGE id

  verify_app_name "$APP"
  IMAGE=$(get_app_image_name "$APP");

  [[ -z $(config_get --global CURL_CONNECT_TIMEOUT) ]] && config_set --global CURL_CONNECT_TIMEOUT=90
  [[ -z $(config_get --global CURL_TIMEOUT) ]] && config_set --global CURL_TIMEOUT=600

  dokku_log_info1 "Adding BUILD_ENV to build environment..."
  # create build env files for use in buildpacks like this:
  # https://github.com/niteoweb/heroku-buildpack-buildout/blob/5879fa3418f7d8e079f1aa5816ba1adde73f4948/bin/compile#L34
  id=$(config_bundle --merged "$APP" | docker run "$DOKKU_GLOBAL_RUN_ARGS" -i -a stdin "$IMAGE" /bin/bash -c "mkdir -p /tmp/env; cat | tar -x -C /tmp/env")
  test "$(docker wait "$id")" -eq 0
  docker commit "$id" "$IMAGE" > /dev/null

  # create build env for 'old style' buildpacks and dokku plugins
  id=$(config_export app "$APP" --format envfile --merged | docker run "$DOKKU_GLOBAL_RUN_ARGS" -i -a stdin "$IMAGE" /bin/bash -c "cat >> /app/.env")
  test "$(docker wait "$id")" -eq 0
  docker commit "$id" "$IMAGE" > /dev/null
}

build_env_pre_build_buildpack "$@"