checkpkg

#!/bin/bash

# Source makepkg.conf; fail if it is not found
if [ -r "/etc/makepkg.conf" ]; then
	source "/etc/makepkg.conf"
else
    echo "/etc/makepkg.conf not found!"
    exit 1
fi

# Source user-specific makepkg.conf overrides
if [ -r ~/.makepkg.conf ]; then
	source ~/.makepkg.conf
fi

strip_url() {
	echo $1 | sed 's|^.*://.*/||g'
}

if [ ! -f PKGBUILD ]; then
	echo "This must be run in the directory of a built package."
	exit 1
fi

source PKGBUILD
if [ "$arch" == "any" ]; then
    CARCH="any"
fi

for _pkgname in ${pkgname[@]}; do
    pkgfile=${_pkgname}-${pkgver}-${pkgrel}-${CARCH}${PKGEXT}
    oldstylepkgfile=${_pkgname}-${pkgver}-${pkgrel}${PKGEXT}

    if [ -f "$(pwd)/$pkgfile" ]; then
	pkgfile=$(pwd)/$pkgfile
    elif [ -f "$PKGDEST/$pkgfile" ]; then
	pkgfile=$PKGDEST/$pkgfile
    elif [ -f "$(pwd)/$oldstylepkgfile" ]; then
	pkgfile=$(pwd)/$oldstylepkgfile
    elif [ -f "$PKGDEST/$oldstylepkgfile" ]; then
	pkgfile=$PKGDEST/$oldstylepkgfile
    else
	echo "File \"$pkgfile\" doesn't exist"
	exit 1
    fi

    tmp=`pacman -Spd --noconfirm $_pkgname`

    if [ $? -ne 0 ]; then
	echo "Couldn't download previous package for $_pkgname."
	exit 1
    fi

    pkgurl=`echo $tmp | rev | cut -d ' ' -f 1 | rev`

    oldpkg=`strip_url $pkgurl`

    if [ "$(basename $oldpkg)" = "$(basename $pkgfile)" ]; then
	echo "The built package ($_pkgname) is the one in the repo right now!"
	exit 1
    fi

    if [ ! -f $oldpkg ]; then
	if echo $pkgurl | grep "^file:///" > /dev/null 2>&1; then
	    cp `echo $pkgurl | sed 's#^file://##'` .
	elif [ -f $PKGDEST/$oldpkg ]; then
	    cp $PKGDEST/$oldpkg .
	else
	    wget --quiet $pkgurl
	fi
    fi

    bsdtar tf $oldpkg > filelist-$_pkgname-old
    bsdtar tf "$pkgfile" > filelist-$_pkgname

    sort -o filelist-$_pkgname filelist-$_pkgname
    sort -o filelist-$_pkgname-old filelist-$_pkgname-old

    diff filelist-$_pkgname-old filelist-$_pkgname

    if diff filelist-$_pkgname-old filelist-$_pkgname | grep '\.so\.' > /dev/null 2>&1; then
	mkdir -p pkg
	cd pkg
	bsdtar xf "$pkgfile" > /dev/null
	for i in `diff ../filelist-$_pkgname-old ../filelist-$_pkgname | grep \> | grep \.so\. | awk '{print $2}'`; do
	    echo -n "${i}: "
	    objdump -p $i | grep SONAME
	done
    else
	echo "No filename differences for $_pkgname."
    fi
done

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