#!/bin/bash

# Copyright (C) 2010 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


# A library script to help other scripts run within an Android build environment, or while deployed
# on a target host.  Intended to be used with the `source` bash built-in command.  Defines the
# following environment variables:
# JAVA_VERSION, RDBG_FLAG, TF_PATH, TRADEFED_OPTS
#
# It will react to the following environment variables, if they are set:
# TF_DEBUG, TRADEFED_OPTS_FILE


checkPath() {
    if ! type -P "$1" &> /dev/null; then
        echo "Unable to find $1 in path."
        exit
    fi;
}

checkFile() {
    if [ ! -f "$1" ]; then
        echo "Unable to locate $1"
        exit
    fi;
}

checkPath java

# check java version
java_version_string=$(java -version 2>&1)
JAVA_VERSION=$(echo "$java_version_string" | grep '[ "]1\.[78][\. "$$]')
if [ "${JAVA_VERSION}" == "" ]; then
    echo "Wrong java version. 1.7 or 1.8 is required."
    exit
fi

# check debug flag and set up remote debugging
if [ -n "${TF_DEBUG}" ]; then
    if [ -z "${TF_DEBUG_PORT}" ]; then
        TF_DEBUG_PORT=10088
    fi
    RDBG_FLAG="-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=${TF_DEBUG_PORT}"
fi

# first try to find TF jars in same dir as this script
CUR_DIR=$(dirname "$0")
TF_JAR_DIR=$(dirname "$0")
if [ -f "${CUR_DIR}/tradefed.jar" ]; then
    TF_PATH="${CUR_DIR}/*"
elif [ ! -z "${ANDROID_HOST_OUT}" ]; then
    # in an Android build env, tradefed.jar should be in
    # $ANDROID_HOST_OUT/tradefed/
    if [ -f "${ANDROID_HOST_OUT}/tradefed/tradefed.jar" ]; then
        # We intentionally pass the asterisk through without shell expansion
        TF_PATH="${ANDROID_HOST_OUT}/tradefed/*"
        TF_JAR_DIR="${ANDROID_HOST_OUT}/tradefed/"
    fi
fi

if [ -z "${TF_PATH}" ]; then
    echo "ERROR: Could not find tradefed jar files"
    exit
fi

# set any host specific options
# file format for file at $TRADEFED_OPTS_FILE is one line per host with the following format:
# <hostname>=<options>
# for example:
# hostname.domain.com=-Djava.io.tmpdir=/location/on/disk -Danother=false ...
# hostname2.domain.com=-Djava.io.tmpdir=/different/location -Danother=true ...
if [ -e "${TRADEFED_OPTS_FILE}" ]; then
    # pull the line for this host and take everything after the first =
    export TRADEFED_OPTS=`grep "^$HOSTNAME=" "$TRADEFED_OPTS_FILE" | cut -d '=' -f 2-`
fi