implement sanity check for build dir

lib/util-iso.sh

@@ -1022,6 +1022,7 @@ build_iso(){
 	msg "Start building [${buildset_iso}]"
 	for prof in $(cat ${sets_dir_iso}/${buildset_iso}.set); do
 	    cd $prof
+		check_dir_iso
 		load_desktop_definition
 		load_profile
 		work_dir=${chroots_iso}/$prof/${arch}
@@ -1031,6 +1032,7 @@ build_iso(){
 	msg "Finished building [${buildset_iso}]"
     else
 	cd ${buildset_iso}
+	    check_dir_iso
 	    load_desktop_definition
 	    load_profile
 	    work_dir=${chroots_iso}/${buildset_iso}/${arch}

lib/util-pkg.sh

@@ -88,6 +88,7 @@ chroot_build(){
 	msg "Start building [${buildset_pkg}]"
 	for pkg in $(cat ${sets_dir_pkg}/${buildset_pkg}.set); do
 	    cd $pkg
+	    check_dir_pkg
 	    for p in ${blacklist_trigger[@]}; do
 		[[ $pkg == $p ]] && blacklist_pkg "${work_dir}"
 	    done
@@ -99,6 +100,7 @@ chroot_build(){
 	msg "Finished building [${buildset_pkg}]"
     else
 	cd ${buildset_pkg}
+	check_dir_pkg
 	for p in ${blacklist_trigger[@]}; do
 	    [[ ${buildset_pkg} == $p ]] && blacklist_pkg "${work_dir}"
 	done

lib/util.sh

@@ -393,3 +393,19 @@ load_user_info(){
     
     USER_CONFIG="$USER_HOME/.config"
 }
+
+check_dir_pkg(){
+    if [[ -f PKGBUILD ]]; then
+	continue
+    else
+	break
+    fi
+}
+
+check_dir_iso(){
+    if [[ -f displaymanager ]] && [[ -f initsys ]]; then
+	continue
+    else
+	break
+    fi
+}