dokku/plugins/builder-railpack/builder-build

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

trigger-builder-railpack-builder-build() {
  declare desc="builder-railpack builder-build plugin trigger"
  declare trigger="builder-build"
  declare BUILDER_TYPE="$1" APP="$2" SOURCECODE_WORK_DIR="$3"

  if [[ "$BUILDER_TYPE" != "railpack" ]]; then
    return
  fi

  dokku_log_info1 "Building $APP from railpack"

  if ! command -v "railpack" &>/dev/null; then
    dokku_log_fail "Missing railpack, install it"
  fi

  local IMAGE=$(get_app_image_name "$APP")
  local DOCKER_BUILD_LABEL_ARGS=("--label=dokku" "--label=org.label-schema.schema-version=1.0" "--label=org.label-schema.vendor=dokku" "--label=com.dokku.image-stage=build" "--label=com.dokku.builder-type=railpack" "--label=com.dokku.app-name=$APP")

  pushd "$SOURCECODE_WORK_DIR" &>/dev/null

  plugn trigger pre-build "$BUILDER_TYPE" "$APP" "$SOURCECODE_WORK_DIR"

  if [[ -f "$SOURCECODE_WORK_DIR/Procfile" ]]; then
    if procfile-util exists --process-type release; then
      procfile-util delete --process-type release
    fi
  fi

  local DOCKER_ARGS=$(: | plugn trigger docker-args-build "$APP" "$BUILDER_TYPE")
  DOCKER_ARGS+=$(: | plugn trigger docker-args-process-build "$APP" "$BUILDER_TYPE")
  [[ "$(fn-builder-railpack-computed-no-cache "$APP")" == "true" ]] && DOCKER_ARGS+=" --no-cache"

  DOCKER_ARGS=" $DOCKER_ARGS "
  eval set -- "$DOCKER_ARGS"

  declare -a RAILPACK_ARGS
  while true; do
    case "$1" in
      --platform)
        RAILPACK_ARGS+=("--platform")
        RAILPACK_ARGS+=("$2")
        shift 2
        ;;
      --platform=*)
        if [[ "$1" == "--buildpack=*" ]]; then
          RAILPACK_ARGS+=("--platform" "${1#--platform=}")
        elif [[ "$1" == "--platform=*" ]]; then
          RAILPACK_ARGS+=("--platform" "${1#--platform=}")
        fi
        shift 1
        ;;
      --progress)
        RAILPACK_ARGS+=("--progress")
        RAILPACK_ARGS+=("$2")
        shift 2
        ;;
      --progress=*)
        if [[ "$1" == "--progress=*" ]]; then
          RAILPACK_ARGS+=("--progress" "${1#--progress=}")
        fi
        shift 1
        ;;
      --cache-key)
        RAILPACK_ARGS+=("--cache-key")
        RAILPACK_ARGS+=("$2")
        shift 2
        ;;
      --cache-key=*)
        if [[ "$1" == "--cache-key=*" ]]; then
          RAILPACK_ARGS+=("--cache-key" "${1#--cache-key=}")
        fi
        shift 1
        ;;
      -e | --env)
        RAILPACK_ARGS+=("--env")
        RAILPACK_ARGS+=("$2")
        shift 2
        ;;
      -e=* | --env=*)
        if [[ "$1" == "--env=*" ]]; then
          RAILPACK_ARGS+=("--env" "${1#--env=}")
        elif [[ "$1" == "--env=*" ]]; then
          RAILPACK_ARGS+=("--env" "${1#--env=}")
        fi
        shift 1
        ;;
      --previous)
        RAILPACK_ARGS+=("--previous")
        RAILPACK_ARGS+=("$2")
        shift 2
        ;;
      --previous=*)
        if [[ "$1" == "--previous=*" ]]; then
          RAILPACK_ARGS+=("--previous" "${1#--previous=}")
        fi
        shift 1
        ;;
      --build-cmd)
        RAILPACK_ARGS+=("--build-cmd")
        RAILPACK_ARGS+=("$2")
        shift 2
        ;;
      --build-cmd=*)
        if [[ "$1" == "--build-cmd=*" ]]; then
          RAILPACK_ARGS+=("--build-cmd" "${1#--build-cmd=}")
        fi
        shift 1
        ;;
      --start-cmd)
        RAILPACK_ARGS+=("--start-cmd")
        RAILPACK_ARGS+=("$2")
        shift 2
        ;;
      --start-cmd=*)
        if [[ "$1" == "--start-cmd=*" ]]; then
          RAILPACK_ARGS+=("--start-cmd" "${1#--start-cmd=}")
        fi
        shift 1
        ;;
      ---show-plan | --error-missing-start)
        RAILPACK_ARGS+=("$1")
        shift 1
        ;;
      *)
        continue
        ;;
    esac
  done

  eval "$(config_export app "$APP" --merged)"

  # shellcheck disable=SC2086
  if ! railpack build "${RAILPACK_ARGS[@]}" --name "$IMAGE-build" "$SOURCECODE_WORK_DIR"; then
    dokku_log_warn "Failure building image"
    return 1
  fi

  if ! suppress_output "$DOCKER_BIN" image build -f "$PLUGIN_AVAILABLE_PATH/builder-railpack/dockerfiles/builder-build.Dockerfile" --build-arg APP_IMAGE="$IMAGE-build" "${DOCKER_BUILD_LABEL_ARGS[@]}" $DOKKU_GLOBAL_BUILD_ARGS -t "$IMAGE" "$SOURCECODE_WORK_DIR"; then
    "$DOCKER_BIN" image remove "$IMAGE-build"
    dokku_log_warn "Failure injecting docker labels and custom entrypoint on image"
    return 1
  fi

  "$DOCKER_BIN" image remove "$IMAGE-build"

  plugn trigger post-build "$BUILDER_TYPE" "$APP" "$SOURCECODE_WORK_DIR"
  popd &>/dev/null || pushd "/tmp" >/dev/null
}

trigger-builder-railpack-builder-build "$@"