分享一个shell脚本用于“基于已安装的rpm包,创建tar压缩包”

#!/bin/bash
if [ $# -lt 1 ];then
    echo -e "Usage:\n`basename $0` {RPM_PACKAGE_NAME}  [OPTION]\n*************************************************************\nRPM_PACKAGE_NAME:\nThe rpm package name, this package must be installed already if you want to archive it. If you want to make portable version for this rpm package, then related .tar.gz file must be existing on /tmp/.\nOPTION:\nAvailable option value is : -i/-I. This option used for cp commands, it will come to interactive mode if need overwrite a existing file during release the RPM Packages. By default, it is '-n'.\n*************************************************************"
    exit -1
fi
PKGNAME=$1
FLAG="n"
if [[ -n $2 ]];then
    if [[ $2="-i" || $2="-I" ]];then
        FLAG="i"
    fi
fi
function OutTarPkg
{
set -e 
mkdir -p /tmp/Free_${PKGNAME}_FileList
for i in `rpm -qR $PKGNAME  | awk -F'[(]' '{print $1}' `;do rpm -q --whatprovides $i >/dev/null && echo $i;done  >/tmp/Free_${PKGNAME}_FileList/deps.txt
rpm -qR $PKGNAME >/tmp/Free_${PKGNAME}_FileList/deps.source
set +e
for i in `rpm -ql $PKGNAME`;
do 
    n_path=`echo $i | sed "s#^#/tmp/Free_${PKGNAME}_FileList#"`
    dir_name=`echo $n_path |  awk -F'/' '{for(i=1;i<NF;i++)printf("%s/",$i)}'`
    mkdir -p $dir_name 
    cp -L --preserve=all  $i  $n_path >/dev/null  2>/dev/null  #This parts, not use -R, because it will copy all the related files under the directory.
done 
cd /tmp
tar -czvf ./${PKGNAME}_RPM.tar.gz  ./Free_${PKGNAME}_FileList/ >/dev/null 
rm -rf /tmp/Free_${PKGNAME}_FileList 
}

function DepsChk
{
for i in `cat ./deps.txt`;
do
        rpm -q --whatprovides $i >/dev/null
        if [ $? -ne 0 ];then
            j=`echo $i | awk -F. '{print $1}'`
            rpm -q --whatprovides $j >/dev/null 
            if [ $? -ne 0 ];then
                echo "Dependency Required, no packages provides for: $i"
                exit 1
            fi
        fi
done
echo "1. The Dependency verify results: PASS."
}


function ReleaseFile
{
cd /tmp
if [ ! -s /tmp/${PKGNAME}_RPM.tar.gz ];
then
    echo -e "Please Verify the file: ${PKGNAME}_RPM.tar.gz exists in the path /tmp/.\nExit with code 2."
    exit 2
fi
set -e
tar -xzvf ./${PKGNAME}_RPM.tar.gz   >/dev/null 
cd ./Free_${PKGNAME}_FileList
set +e
DepsChk
rm -f deps.txt
set -e
for i in `find . -iname "*" -type f | grep -Evi "deps.source|deps.txt" | sed 's/.//'`;
do 
    s_file=`echo $i | sed 's/^/./'`
    if [ -f $i ];then
        mv $i  $i.`date +%Y%m%d_%H%M%S`    #Rename first if the file exists already. 
    fi
    mkdir -p ${i%/*}         #Create the directory first if it not exist by default. 
    cp -L --preserve=all -${FLAG}  ${s_file}  $i    
done 
cd /tmp
rm -rf ./Free_${PKGNAME}_FileList
}

#Start from here: 
rpm -qi $PKGNAME >/dev/null
if [ $? -eq 0 ];then
    echo "System installed packages: $PKGNAME, start get the Tar file for this package."
    OutTarPkg
    if [ $? -eq 0 ];then
        echo "Succeed get the tar.gz file for package: $PKGNAME on path /tmp/${PKGNAME}_RPM.tar.gz"
    else
        echo "Failed to get the tar.gz file."
        exit 3
    fi
else
    echo "Package: $PKGNAME not found in this system, try to release the rpm related files from /tmp/${PKGNAME}_RPM.tar.gz"
    ReleaseFile
    if [ $? -eq 0 ];then 
        echo "2. Release the package files results on the system: Succeed.You can use it now."
    else
        echo "Failed to release the rpm package files."
        exit 5
    fi
fi