fix: shellcheck for 51-dracut-rescue.install

diff --git a/51-dracut-rescue.install b/51-dracut-rescue.install
index b2b3b9efeb6d6e9079ad44f90608e9f253292eac..8bf9a6d9513bcd9a08a3efdd7b019d717a346eda 100755 (executable)
--- a/51-dracut-rescue.install
+++ b/51-dracut-rescue.install
@@ -14,8 +14,8 @@ dropindirs_sort()
     args=("$@")
     files=$(
         while (( $# > 0 )); do
-            for i in ${1}/*${suffix}; do
-                [[ -f $i ]] && echo ${i##*/}
+            for i in "${1}"/*"${suffix}"; do
+                [[ -f $i ]] && echo "${i##*/}"
             done
             shift
         done | sort -Vu
@@ -36,7 +36,7 @@ dropindirs_sort()
 if [[ ${KERNEL_INSTALL_MACHINE_ID+x} ]]; then
     MACHINE_ID=$KERNEL_INSTALL_MACHINE_ID
 elif [[ -f /etc/machine-id ]] ; then
-    read MACHINE_ID < /etc/machine-id
+    read -r MACHINE_ID < /etc/machine-id
 fi
 
 if ! [[ $MACHINE_ID ]]; then
@@ -80,9 +80,13 @@ case "$COMMAND" in
 
         # source our config dir
         for f in $(dropindirs_sort ".conf" "/etc/dracut.conf.d" "/usr/lib/dracut/dracut.conf.d"); do
-            [[ -e $f ]] && . "$f"
+            if [[ -e $f ]]; then
+                # shellcheck disable=SC1090
+                . "$f"
+            fi
         done
 
+        # shellcheck disable=SC2154
         [[ $dracut_rescue_image != "yes" ]] && exit 0
 
         [[ -d "$BOOT_DIR_ABS" ]] || mkdir -p "$BOOT_DIR_ABS"
@@ -101,17 +105,17 @@ case "$COMMAND" in
                 echo "title      $PRETTY_NAME - Rescue Image"
                 echo "version    $KERNEL_VERSION"
                 echo "machine-id $MACHINE_ID"
-                echo "options    ${BOOT_OPTIONS[@]} rd.auto=1"
+                echo "options    ${BOOT_OPTIONS[*]} rd.auto=1"
                 echo "linux      $BOOT_DIR/linux"
                 echo "initrd     $BOOT_DIR/initrd"
-            } > $LOADER_ENTRY
+            } > "$LOADER_ENTRY"
         else
             if [[ -e "${BLS_DIR}/${MACHINE_ID}-${KERNEL_VERSION}.conf" ]]; then
-                cp -aT "${BLS_DIR}/${MACHINE_ID}-${KERNEL_VERSION}.conf" $LOADER_ENTRY
+                cp -aT "${BLS_DIR}/${MACHINE_ID}-${KERNEL_VERSION}.conf" "$LOADER_ENTRY"
             else
-                cp -aT "${KERNEL_IMAGE%/*}/bls.conf" $LOADER_ENTRY
+                cp -aT "${KERNEL_IMAGE%/*}/bls.conf" "$LOADER_ENTRY"
             fi
-            sed -i 's/'$KERNEL_VERSION'/0-rescue-'${MACHINE_ID}'/' $LOADER_ENTRY
+            sed -i "s/${KERNEL_VERSION}/0-rescue-${MACHINE_ID}/" "$LOADER_ENTRY"
         fi
 
         ((ret+=$?))