Fixed the update script not working properly with the -s flag or variant filter

functions.sh

@@ -58,7 +58,7 @@ function get_variants() {
   local arch
   local availablevariants
   local variantsfilter
-  local variants
+  local variants=()
 
   arch=$(get_arch)
   variantsfilter=("$@")
@@ -143,7 +143,7 @@ function get_versions() {
   prefix=${1:-.}
   shift
 
-  local versions
+  local versions=()
   local dirs=("$@")
 
   local default_variant

update.sh

@@ -29,6 +29,7 @@ while getopts "sh" opt; do
   case "${opt}" in
     s)
       SKIP=true
+      shift
       ;;
     h)
       usage
@@ -46,7 +47,8 @@ done
 cd "$(cd "${0%/*}" && pwd -P)"
 
 IFS=' ' read -ra versions <<<"$(get_versions .)"
-IFS=' ' read -ra update_versions <<<"$(get_versions . "$@")"
+IFS=' ' read -ra update_versions <<<"$(get_versions . "${1-}")"
+IFS=' ' read -ra update_variants <<<"$(get_variants . "${2-}")"
 if [ ${#versions[@]} -eq 0 ]; then
   fatal "No valid versions found!"
 fi
@@ -65,6 +67,11 @@ fi
 function in_versions_to_update() {
   local version=$1
 
+  if [ "${#update_versions[@]}" -eq 0 ]; then
+    echo 0
+    return
+  fi
+
   for version_to_update in "${update_versions[@]}"; do
     if [ "${version_to_update}" = "${version}" ]; then
       echo 0
@@ -75,6 +82,24 @@ function in_versions_to_update() {
   echo 1
 }
 
+function in_variants_to_update() {
+  local variant=$1
+
+  if [ "${#update_variants[@]}" -eq 0 ]; then
+    echo 0
+    return
+  fi
+
+  for variant_to_update in "${update_variants[@]}"; do
+    if [ "${variant_to_update}" = "${variant}" ]; then
+      echo 0
+      return
+    fi
+  done
+
+  echo 1
+}
+
 function update_node_version() {
 
   local baseuri=${1}
@@ -164,9 +189,9 @@ for version in "${versions[@]}"; do
   parentpath=$(dirname "${version}")
   versionnum=$(basename "${version}")
   baseuri=$(get_config "${parentpath}" "baseuri")
-  update=$(in_versions_to_update "${version}")
+  update_version=$(in_versions_to_update "${version}")
 
-  [ "${update}" -eq 0 ] && info "Updating version ${version}..."
+  [ "${update_version}" -eq 0 ] && info "Updating version ${version}..."
 
   # Get supported variants according the target architecture
   # See details in function.sh
@@ -175,7 +200,7 @@ for version in "${versions[@]}"; do
   if [ -f "${version}/Dockerfile" ]; then
     add_stage "${baseuri}" "${version}" "default"
 
-    if [ "${update}" -eq 0 ]; then
+    if [ "${update_version}" -eq 0 ]; then
       update_node_version "${baseuri}" "${versionnum}" "${parentpath}/Dockerfile.template" "${version}/Dockerfile" &
     fi
   fi
@@ -185,7 +210,9 @@ for version in "${versions[@]}"; do
     [ -f "${version}/${variant}/Dockerfile" ] || continue
     add_stage "${baseuri}" "${version}" "${variant}"
 
-    if [ "${update}" -eq 0 ]; then
+    update_variant=$(in_variants_to_update "${variant}")
+
+    if [ "${update_version}" -eq 0 ] && [ "${update_variant}" -eq 0 ]; then
       update_node_version "${baseuri}" "${versionnum}" "${parentpath}/Dockerfile-${variant}.template" "${version}/${variant}/Dockerfile" "${variant}" &
     fi
   done