module

#!/bin/bash

volume_module() {
    # generate 'volume_build.go' file
    if [ ! -f $volume_build ]; then
    cat << END > $volume_build
// +build linux

// The file is automatically generated, DON'T EDIT.

package main

// import default package.
import _ "github.com/alibaba/pouch/volume/store/boltdb"

END
    fi

    grep -q $1 $volume_build
    if [ $? -ne "0" ]
    then
        echo "import _ \"$1\"" >> $volume_build
    fi
}

help=
clean=
gcflags=
volume_build=volume_build.go

opt=
for option
do
    opt="$opt `echo $option | sed -e \"s/\(--[^=]*=\)\(.* .*\)/\1'\2'/\"`"

    case "$option" in
        -*=*) value=`echo "$option" | sed -e 's/[-_a-zA-Z0-9]*=//'` ;;
           *) value="" ;;
    esac

    case "$option" in
        --help)                     help=yes                                    ;;
        -h)                         help=yes                                    ;;

        --clean)                    clean=yes                                   ;;

        --add-volume=*)
            volume_module $value
        ;;

        *)
            echo "$0: error: invalid option \"$option\""
            exit 1
        ;;
    esac
done

if [ "$clean" = "yes" ]; then
    rm -f $volume_build
    exit 0
fi

if [ "$help" = "yes" ]; then
    echo "usage:"
    echo "     module [options]"
    echo ""
    echo "options:"
    echo "     --help, -h          Print help infomation"
    echo "     --add-volume=       Add a volume driver module to compile"
    echo "     --clean             Remove temporary codes, the 'build.go'"
    echo ""
    echo "     ./module            To comiple directly on current codes, include added modules"
    echo ""
    echo "     ./module --add-volume=github.com/alibaba/pouch/volume/examples/demo"
    echo "     A example show how to add a driver module, 'github.com/alibaba/pouch/volume/examples/demo' is a Go's package"
    echo "     can be found in \$GOPATH"
    exit 0
fi