#!/bin/bash
UPLOAD=0

if [ $1 = "-u" ]; then
    UPLOAD=1; shift
fi

PACKAGE=$1; shift

function tag() {
    if [[ $1 =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3} ]]; then
	echo Pacemaker-$1
    else
	echo $1
    fi
}

function version() {
    echo $1 | sed s:.*-::
}

function extract() {

    DUMP=1
    TAG=$1
    VERSION=$2

    if [ $VERSION = HEAD ]; then
	rm -rf abi_dumps/$PACKAGE/${PACKAGE}_$VERSION.abi.tar.gz

    elif [ -f abi_dumps/$PACKAGE/${PACKAGE}_$VERSION.abi.tar.gz ]; then
	return
    fi
    
    echo "Building ABI dump for $*"
    BUILD_ROOT=.ABI-build

    rm -rf $BUILD_ROOT
    git archive --prefix $BUILD_ROOT/ $TAG | tar xv

    BUILD_ROOT=`pwd`/$BUILD_ROOT
    DESC=$BUILD_ROOT/$VERSION.xml

    sed -i.sed 's: doc::' $BUILD_ROOT/Makefile.am
    sed -i.sed 's: debian::' $BUILD_ROOT/Makefile.am

    cat<<EOF>$DESC
<?xml version="1.0" encoding="utf-8"?>
<descriptor>
<version>
    $VERSION
</version>
<headers>
	$BUILD_ROOT/root/usr/include/pacemaker/crm
</headers>
<libs>
EOF

    ( cd $BUILD_ROOT && ./autogen.sh )
    ( cd $BUILD_ROOT && ./configure  --disable-fatal-warnings )
    make -C $BUILD_ROOT V=0 DESTDIR=${BUILD_ROOT}/root install
    if [ $? != 0 ]; then
	echo "Build for $TAG failed. Repair, populate <libs/> and re-run: "
	echo "  abi-compliance-checker -l $PACKAGE -dump_abi $DESC"
	echo ""
	echo "To find libraries after building:"
	echo "  find $BUILD_ROOT/root -name "*.so" -print"    

    else
	find $BUILD_ROOT/root -name "*.so" -print >> $DESC    
    fi

    cat<<EOF>>$DESC
</libs>
</descriptor>
EOF

    if [ $DUMP = 1 ]; then
	abi-compliance-checker -l $PACKAGE -dump_abi $DESC
	rm -rf $BUILD_ROOT
    else
	exit 1
    fi
}

for arg in $*; do
    T=`tag $arg`
    V=`version $T`
    extract $T $V
done

if [ $# -gte 2 ]; then
    V1=`version $1`
    V2=`version $2`

    abi-compliance-checker -l ${PACKAGE} \
	-d1 abi_dumps/${PACKAGE}/${PACKAGE}_${V1}.abi.tar.gz \
	-d2 abi_dumps/${PACKAGE}/${PACKAGE}_${V2}.abi.tar.gz

    if [ $UPLOAD = 1 -a -d compat_reports/pacemaker/${V1}_to_${V2} ]; then
	rsync -azxlSD --progress compat_reports/pacemaker/${V1}_to_${V2} root@www.clusterlabs.org:/var/www/html/abi/
    fi
fi