#!/bin/bash
# Copyright 2017 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.

### configure jiri to manage a specific petal

## usage: fx set-petal zircon|garnet|peridot|topaz
## Configures jiri to fetch the source code for the given petal and its
## dependencies.

set -e

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

if [[ "$#" -ne 1 ]]; then
  fx-command-help
  exit 1
fi

petal="$1"

if [[ "${petal}" != "zircon" ]] &&
   [[ "${petal}" != "garnet" ]] &&
   [[ "${petal}" != "peridot" ]] &&
   [[ "${petal}" != "topaz" ]]; then
  fx-command-help
  exit 1
fi

# If jiri is not found which will return an err which will cause bash to exit.
# "|| echo" catches that.
jiri=$(which jiri || echo)
if [[ -z ${jiri} ]]; then
  jiri="${FUCHSIA_DIR}/.jiri_root/bin/jiri"
  if [[ ! -f ${jiri} ]]; then
    echo >&2 "error: Cannot find \"jiri\" in your PATH nor at ${jiri}."
    exit 1
  fi
fi

cd "${FUCHSIA_DIR}"
rm -f -- "${FUCHSIA_DIR}/.jiri_manifest"
"${jiri}" import -name=integration topaz/topaz "https://fuchsia.googlesource.com/integration"
"${jiri}" override "${petal}" "https://fuchsia.googlesource.com/${petal}"

echo "Configured jiri for ${petal}. Run these commands to update your build:"

if [[ "${petal}" == "zircon" ]]; then
cat <<END
 * jiri update -gc     # Updates your source tree to contain ${petal} and
                       # removes unneeded repositories.

 * cd zircon && scripts/build-zircon-<arch>  # Acutally builds ${petal}.
END
else
cat <<END
 * jiri update -gc     # Updates your source tree to contain ${petal} and
                       # removes unneeded repositories.
 * fx set x64          # Updates your build directory to build ${petal}.
 * fx full-build       # Actually builds ${petal}
END
fi