hooks/post-install/99-pkglint: add checks for missing shlibs and SONAME bumps.

Created by Gottox and minor fixes by myself.

common/hooks/post-install/99-pkglint.sh

@@ -1,7 +1,8 @@
 # This hook checks for common issues related to void.
 
 hook() {
-	local error=0
+	local error=0 filename= rev= libname= conflictPkg= conflictFile=
+		conflictRev= found= mapshlibs=$XBPS_COMMONDIR/shlibs
 
 	for f in bin sbin lib lib32; do
 		if [ -d ${PKGDESTDIR}/${f} ]; then
@@ -18,4 +19,35 @@ hook() {
 	if [ $error -gt 0 ]; then
 		msg_error "${pkgver}: cannot continue with installation!\n"
 	fi
+
+	# Check for missing shlibs and SONAME bumps.
+	if [ ! -f "${PKGDESTDIR}/shlib-provides" ]; then
+		return 0
+	fi
+
+	for filename in `cat ${PKGDESTDIR}/shlib-provides`; do
+		rev=${filename#*.so.}
+		libname=${filename%.so*}
+		grep -E "^${libname}\.so[\.0-9.]*[[:blank:]]+${pkgname}-[^-]+_[0-9]+$" $mapshlibs | { \
+			while read conflictFile conflictPkg; do
+				found=1
+				conflictRev=${conflictFile#*.so.}
+				if [ "$rev" = "$conflictRev" ]; then
+					continue
+				elif [[ "$rev".* =~ "$conflictRev" ]]; then
+					continue
+				fi
+				msg_red "${pkgver}: SONAME bump detected: ${libname}.so.${conflictRev} -> ${libname}.so.${rev}\n"
+				msg_red "${pkgver}: please update common/shlibs with this line: \"${libname}.so.${rev} ${pkgver}\"\n"
+				msg_red "${pkgver}: all reverse dependencies should also be revbumped to be rebuilt against ${libname}.so.${rev}:\n"
+				for x in $($XBPS_QUERY_XCMD -RX ${pkgname}); do
+					msg_red "   ${x}\n"
+				done
+				msg_error "${pkgver}: cannot continue with installation!\n"
+			done
+			if [ -z "$found" ]; then
+				msg_error "${pkgver}: ${libname}.so.${rev} not found in common/shlibs. Please add it.\n"
+			fi;
+		}
+	done
 }