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#!/bin/bash
 ###########################################################################
# Copyright 2018 IoT.bzh
#
# author: Sebastien Douheret <sebastien@iot.bzh>
#
# 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.
###########################################################################

. $(dirname "$0")/_env-init.sh

usage() {
    echo "Usage: $(basename $0) [-h|--help] [-f|--file <sdk-filename>] [-u|--url <https_url>] [--md5 <string>]"
	exit 1
}

SDK_FILE=""
MD5VAL=""
URL=""

while [ $# -ne 0 ]; do
    case $1 in
        -f|--file)
            shift
            SDK_FILE=$1
            ;;
        -h|--help)
            usage
            ;;
        --md5)
            shift
            MD5VAL=$1
            ;;
        -u|--url)
            shift
            URL=$1
            ;;
        *)
            echo "Invalid argument: $1"
            usage
            ;;
    esac
    shift
done

if [ "${SDK_FILE}" != "" ]; then

    if [ ! -f "${SDK_FILE}" ]; then
        echo "sdk file doesn't exist"
        exit 1
    fi

    # Criteria to consider that SDK is a valid AGL sdk:
    #  - shell and binary file type
    #  - "$MARKER:$" string found
    #  - md5sum match MD5VAL if MD5VAL is set

    if ! file "${SDK_FILE}" |grep shell |grep -q binary ; then
        echo "Not expected file type"
        exit 2
    fi

    if ! grep -aq -m1 "^MARKER:$" "${SDK_FILE}"; then
        echo "marker not found"
        exit 4
    fi

    if [ "${MD5VAL}" != "" ]; then
        if ! echo "${MD5VAL} ${SDK_FILE}" | md5sum --status -c -; then
            echo "md5sum dit not match"
            exit 5
        fi
    fi

    filename=$(basename "${SDK_FILE}")
    sdkUrl=file://${SDK_FILE}
    sdkDate=$(stat -c %y "${SDK_FILE}")
    sdkSize=$(/bin/ls -sh "${SDK_FILE}" |cut -d' ' -f1)

elif [ "${URL}" != "" ]; then

    filename=$(basename "${URL}")
    sdkUrl=${URL}
    sdkDate=""
    sdkSize=""

else
    echo "--file or --url option must be set"
    exit 1
fi

# assume that sdk name follow this format :
#  _PROFILE_-_COMPILER_ARCH_-_TARGET_-crosssdk-_ARCH_-toolchain-_VERSION_.sh
# for example:
#  poky-agl-glibc-x86_64-agl-demo-platform-crosssdk-corei7-64-toolchain-4.0.1.sh


if [[ "${filename}" != *"crosssdk"* ]]; then
    echo "malformed sdk file name"
    exit 6
fi

profile=$(echo "${filename}" | sed -r 's/(.*)-glibc.*/\1/')
version=$(echo "${filename}" | sed -r 's/.*toolchain-(.*).sh/\1/')
arch=$(echo "${filename}" | sed -r 's/.*crosssdk-(.*)-toolchain.*/\1/')

[ "${profile}" = "" ] && { echo "profile not set"; exit 7; }
[ "${version}" = "" ] && { echo "version not set"; exit 8; }
[ "${arch}" = "" ] && { echo " arch not set"; exit 9; }

# Define a unique ID to be able to distinguish for example corei7-64 from qemux86-64
uuid=$(echo "${sdkUrl}" | md5sum |cut -d' ' -f1)

installPath=${SDK_ROOT_DIR}/${profile}/${version}/${arch}/${uuid}

status="Not Installed"
if [ -d "${installPath}" ]; then
    envFile=$(find "${installPath}" -maxdepth 1 -name "${SDK_ENV_SETUP_FILENAME}")
    [ "${envFile}" != "" ] && status="Installed"
fi

read -r -d '' res <<- EndOfMessage
{
    "name":         "${profile}_${arch}_${version}",
    "description":  "AGL SDK ${arch} (version ${version})",
    "profile":      "${profile}",
    "version":      "${version}",
    "arch":         "${arch}",
    "path":         "${installPath}",
    "url":          "${sdkUrl}",
    "status":       "${status}",
    "date":         "${sdkDate}",
    "size":         "${sdkSize}",
    "md5sum":       "${MD5VAL}",
    "setupFile":    "${envFile}"
}
EndOfMessage

echo "$res"
exit 0