fixed for build with opensuse tumbleweed and leap - and fedora, centos, mageia

build-in-docker.sh

@@ -203,11 +203,16 @@ function ifthenelse() {
     DISTRIBUTOR=$(docker exec ${DOCKER_ID} lsb_release -si | sed 's, .*,,;s,.*,\L&,g')
     CODENAME=$(docker exec ${DOCKER_ID} lsb_release -cs)
     ARCH=$((docker exec ${DOCKER_ID} which dpkg > /dev/null 2> /dev/null && docker exec ${DOCKER_ID} dpkg --print-architecture) || echo amd64)
-    if test "$CODENAME" = "n/a"; then
-        if test "$DISTRIBUTOR" = "opensuse"; then
-            CODENAME=$(docker exec ${DOCKER_ID} lsb_release -ds | sed "s,\($(docker exec ${DOCKER_ID} lsb_release -si | sed 's, ,\\|,g')\) *,,"';s, .*,,g;s,",,g;s,.*,\L&,g')
-        fi
-    fi
+    case "$DISTRIBUTOR" in
+        (opensuse) # code name may be not available, then set leap or tumbleweed
+            if test "$CODENAME" = "n/a"; then
+                CODENAME=$(docker exec ${DOCKER_ID} lsb_release -ds | sed "s,\($(docker exec ${DOCKER_ID} lsb_release -si | sed 's, ,\\|,g')\) *,,"';s, .*,,g;s,",,g;s,.*,\L&,g')
+            fi
+            ;;
+        (fedora|centos|mageia) # numeric code name
+            CODENAME=$(docker exec ${DOCKER_ID} lsb_release -rs)
+            ;;
+    esac
     if test "${arg/:::/}" = "${arg}"; then
         cmd_tmp="${cmd//ARG/${arg//@DISTRIBUTOR@/${DISTRIBUTOR}}}"
         docker exec ${DOCKER_ID} bash -c "${cmd_tmp//@CODENAME@/${CODENAME}}"