Bash 实例：探讨 ebuild 系统

#the sed ebuild file -- very simple!

P=sed-3.02

A=$.tar.gz

#!/usr/bin/env bash





if [ $# -ne 1 ]

then 

    echo "one argument expected."

    exit 1

fi



if [ -e "" ]

then 

    source 

else

    echo "ebuild file  not found."

    exit 1

fi



export ORIGDIR=`pwd`

export WORKDIR=$/work

export SRCDIR=$/$



if [ -z "$DISTDIR" ]

then 

    # set DISTDIR to /usr/src/distfiles if not already set

    DISTDIR=/usr/src/distfiles

fi

export DISTDIR



if [ -d $ ]

then    

    # remove old work directory if it exists 

    rm -rf $

fi



mkdir $

cd $

tar xzf $/$

cd $

./configure --prefix=/usr

make

#another really simple ebuild script!

P=gzip-1.2.4a

A=$.tar.gz

#!/usr/bin/env bash



if [ $# -ne 2 ]

then 

    echo "Please specify two args - .ebuild file and unpack, compile or all"

    exit 1

fi





if [ -z "$DISTDIR" ]

then 

    # set DISTDIR to /usr/src/distfiles if not already set

    DISTDIR=/usr/src/distfiles

fi

export DISTDIR



ebuild_unpack() {

    #make sure we're in the right directory 

    cd $

    

    if [ -d $ ]

    then    

        rm -rf $

    fi



    mkdir $

    cd $

    if [ ! -e $/$ ]

    then

        echo "$/$ does not exist.  Please download first."

        exit 1

    fi    

    tar xzf $/$

    echo "Unpacked $/$."

    #source is now correctly unpacked

}





ebuild_compile() {

    

    #make sure we're in the right directory

    cd $

    if [ ! -d "$" ]

    then

        echo "$ does not exist -- please unpack first."

        exit 1

        fi

    ./configure --prefix=/usr

    make     

}



export ORIGDIR=`pwd`

export WORKDIR=$/work



if [ -e "" ]

then 

    source 

else

    echo "Ebuild file  not found."

    exit 1

fi



export SRCDIR=$/$



case "" in

    unpack)

        ebuild_unpack

        ;;

    compile)

        ebuild_compile

        ;;

    all)

        ebuild_unpack

        ebuild_compile

        ;;

    *)

        echo "Please specify unpack, compile or all as the second arg"

        exit 1

        ;;

esac