source: npl/pkgname @ 0105685

#!/bin/bash
#(C)DatuX 2005 - all rights reserved
PKG=$1
if [ ! -f "$1" ]; then
        echo "Package $PKG not found!" >&2
        exit 1
elif echo "$PKG" | egrep '.tgz$' &>/dev/null; then
        #is al een .tgz, gewoon doorgeven
        echo $PKG
        exit 0
else
        DIR=`dirname $PKG` || exit 1
        BASE=`basename $PKG` || exit 1
        
        #get the info needed for the package name
        NAME=`echo $BASE|sed 's/\.pkg$//'` || exit 1
        VER=`cat $DIR/$NAME.version` || exit 1
        ARCH=`cat $DIR/$NAME.arch|sed s/-/_/g` || exit 1

        #build nr bepalen mbv svn
        SVNSTATUS=`svn status -v "$PKG"` || exit 1
        BUILD=`echo "$SVNSTATUS" | egrep -o '[0-9]+' | head -n 2 | tail -n1`
        MOD=`echo "$SVNSTATUS"|cut -b1-2`

        #naam aanpassen als hij nieuw of gemod is
        APPEND=
        if [ "$BUILD" == "?" ]; then
                BUILD="new"
        else
                #gemodified?
                if [ "$MOD" != "  " ]; then
                        APPEND=mod
                fi
        fi              


        #bevat 1 van de packagenaam onderdelen illegale tekens?
        if echo "$NAME$VER$ARCH$BUILD$APPEND" | grep '[^a-zA-Z0-9._+]' &>/dev/null; then
            echo "FOUT: Package naam '$NAME-$VER-$ARCH-$BUILD$APPEND' bevat illegale tekens!" >&2
            exit 1          
        fi
                
        echo "$NAME-$VER-$ARCH-$BUILD$APPEND.tgz"
fi