#!/bin/bash
# Copyright 2018 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

#### CATEGORY=Build
### run `gn gen` against the Fuchsia build directories.

## Execute a `gn gen` against the Fuchsia build
## If successful, execute a `gn gen` against the Fuchsia build.
##
## In abstract, if FUCHSIA_BUILD_DIR is out/x64, this is simply:
##   gn gen out/x64
## It is useful if one has by some mechanism deleted the ninja artifacts, but
## not the args.gn, e.g. if one CTRL+C's a regen step (gn bug).

source "$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"/lib/vars.sh || exit $?

if ! fx-build-dir-if-present; then
  fx-error "No build directory found."
  fx-error "Run \"fx set\" to create a new build directory, or specify one with --dir"
  exit 1
fi

fx-gen "$@"