source: npl/getdeb @ edd71a2

#!/bin/bash 
#(C)DatuX 2008 all rights reserved

# Gets a .deb debian package from a packagename out of the svn tree.



cd `dirname $0`
CWD=`pwd`
PKG=$1
TARGET=$2


if ! [ -e  "$TARGET" ]; then
        echo "Usage: ";
        echo " $0 packagename /path/to/target/dir"
        echo 
        echo "This will convert the syn3 svn-package to a debian package and put it in the target dir."
        echo "Also outputs a .deb.syn3 file which is used by $0 to allow intelligent caching."
        exit 1  
fi

mkdir -p $TARGET 2>/dev/null

if TAR=`./findfile "$PKG.pkg"`; then
    BASEPATH=`echo $TAR| sed 's/.pkg$//'` || exit 1
    FULLNAME=`./pkgname $TAR | sed 's/.tgz//'`.deb || exit 1
    BUILDPATH=`./findbuild $PKG` || exit 1
    #calc MD5 sum of files that are used to generate the .deb.
    MD5="`cat $BUILDPATH.md5 $BASEPATH.arch $BASEPATH.version $BASEPATH.{preinst,postinst,prerm,postrm} 2>/dev/null| md5sum`" || exit 1
else
    TAR=`./findpkg $PKG` || exit 1
    FULLNAME=`echo $TAR | sed 's@.*/@@' | sed 's/.tgz//' `.deb || exit 1
    BUILDPATH=
    MD5=`cat $TAR| md5sum ` || exit 1
fi

echo "Tar= $TAR";
echo "Fullname= $FULLNAME";
echo "Buildpath= $BUILDPATH";
echo "MD5= $MD5";


#do we need to rebuild the .deb file?
#check if the md5 we build the .deb against still matches:
if ! grep -x "$MD5" $TARGET/$FULLNAME.syn3 &>/dev/null; then 
        echo -n " (creating) " >&2

        #tempdir and cleanup
        TMP=`mktemp -d` || exit 1
        trap "rm -r $TMP" 0
        
        #echo "Installing in $TMP:"
        TGZ=`./findpkg $PKG` || exit 1
        ROOT=$TMP installpkg $TGZ &>/dev/null || exit 1
        
        #HACK:we bepalen de runtime dependencys nu nog aan de hand van de build time deps. 
        #dit moet nog anders.
        #BUILDSCRIPT=`./findbuild $PKG`.SlackBuild || return 0
        #DEPS="`cat "$BUILDSCRIPT"|egrep '^#NEED:|^#DEP:'|cut -f2 -d':'`" || exit 1
        DEPS=
        
        #echo "Adding control file.."
        mkdir $TMP/DEBIAN
        CONTROL=$TMP/DEBIAN/control
        echo "Package: $PKG"                                            > $CONTROL

        #hackerdehack
        VER=`cat $BASEPATH.version`
        if ! [ "$VER" ]; then
            VER=0.0
        fi
        echo "Version: $VER"                            >> $CONTROL
        echo "Maintainer: root@datux.nl"                                >> $CONTROL
        echo "Description: Auto generated package by Syn-3 getdeb."     >> $CONTROL
        if [ "$DEPS" ]; then
                echo "Depends: `echo $DEPS| sed 's/ /, /g'`"                    >> $CONTROL
        fi
        
        #copy install scripts
        cp $BASEPATH.{preinst,postinst,prerm,postrm} $TMP/DEBIAN/ 2>/dev/null

        #translate architecture to a debian-compatible one.
        #this is either: all or i386
        DEBARCH=`cat $BASEPATH.arch | sed 's/noarch/all/' | sed 's/i.86/i386/'`;
        if ! [ "$DEBARCH" ]; then
            DEBARCH=i386
        fi
        echo "Architecture: $DEBARCH" >> $CONTROL
        
        dpkg-deb --nocheck -b $TMP $TARGET/$PKG.deb >/dev/null || exit 1

        #store md5 for the situation we've build against
        echo "$MD5" > $TARGET/$FULLNAME.syn3
fi


#echo the absolute path to the created or cached deb package
echo "$TARGET/$FULLNAME"
exit 0