scripts/download_package.sh

#!/bin/bash
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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.

set -e

if [ $# -lt 2 ]; then
    echo "Invalid arguments !"
    echo "USAGE: $0 <DIR_NAME> <PACKAGE_MD5> [TARGET_PATH]"
    exit 1
fi

DIR_NAME=$1
PACKAGE_MD5=$2

if [ $# -lt 3 ]; then
    echo "TARGET_PATH is not provided, thus do not try to download ${DIR_NAME}"
    exit 0
fi

TARGET_PATH=$3
if [ -d ${TARGET_PATH} ]; then
    echo "TARGET_PATH ${TARGET_PATH} has existed, thus do not try to download ${DIR_NAME}"
    exit 0
fi

PACKAGE_NAME=${DIR_NAME}.tar.gz
if [ ! -f ${PACKAGE_NAME} ]; then
    echo "Downloading ${DIR_NAME}..."

    DOWNLOAD_URL="https://pegasus-thirdparty-package.oss-cn-beijing.aliyuncs.com/${PACKAGE_NAME}"
    if ! wget -T 10 -t 5 ${DOWNLOAD_URL}; then
        echo "ERROR: download ${DIR_NAME} failed"
        exit 1
    fi

    if [ `md5sum ${PACKAGE_NAME} | awk '{print$1}'` != ${PACKAGE_MD5} ]; then
        echo "Check file ${PACKAGE_NAME} md5sum failed!"
        exit 1
    fi
fi

rm -rf ${DIR_NAME}

echo "Decompressing ${DIR_NAME}..."
if ! tar xf ${PACKAGE_NAME}; then
    echo "ERROR: decompress ${DIR_NAME} failed"
    rm -f ${PACKAGE_NAME}
    exit 1
fi

rm -f ${PACKAGE_NAME}

if [ ! -d ${DIR_NAME} ]; then
    echo "ERROR: ${DIR_NAME} does not exist"
    exit 1
fi

if [ -d ${TARGET_PATH} ]; then
    echo "TARGET_PATH ${TARGET_PATH} has been generated, which means it and ${DIR_NAME} are the same dir thus do not do mv any more"
    exit 0
fi

mv ${DIR_NAME} ${TARGET_PATH}