zfsbootmenu/*: tab-delimit kernel lists for boot environments

Author: ahesford

zfsbootmenu/bin/zfsbootmenu

@@ -131,7 +131,7 @@ while true; do
       zdebug "selected kernel: ${selected_kernel}"
 
       # shellcheck disable=SC2034
-      IFS=' ' read -r fs kpath initrd <<< "${selected_kernel}"
+      IFS=$'\t' read -r fs kpath initrd <<< "${selected_kernel}"
 
       case "${subkey}" in
         "enter")

zfsbootmenu/lib/zfsbootmenu-core.sh

@@ -318,7 +318,7 @@ kexec_kernel() {
   # zfs filesystem
   # kernel
   # initramfs
-  IFS=' ' read -r fs kernel initramfs <<<"${selected}"
+  IFS=$'\t' read -r fs kernel initramfs <<<"${selected}"
 
   zdebug "fs: ${fs}, kernel: ${kernel}, initramfs: ${initramfs}"
 
@@ -820,7 +820,7 @@ find_be_kernels() {
       zdebug "found kernel: ${mnt}${kpath}, initramfs ${mnt}${ipath}"
       ipath="${ipath#"${mnt}"}"
       ipath="/${ipath#/}"
-      echo "${fs} ${kpath} ${ipath}" >> "${kernel_records}"
+      printf "%s\t%s\t%s\n" "${fs}" "${kpath}" "${ipath}" >> "${kernel_records}"
     else
       zdebug "kernel ${mnt}${kpath} has no initramfs"
     fi
@@ -872,7 +872,7 @@ select_kernel() {
     zdebug "org.zfsbootmenu:kernel set to ${specific_kernel}"
     while read -r spec_kexec_args; do
       local fs kernel initramfs
-      IFS=' ' read -r fs kernel initramfs <<<"${spec_kexec_args}"
+      IFS=$'\t' read -r fs kernel initramfs <<<"${spec_kexec_args}"
       if [[ "${kernel}" =~ ${specific_kernel} ]]; then
         zdebug "matched ${kernel} to ${specific_kernel}"
         kexec_args="${spec_kexec_args}"

zfsbootmenu/lib/zfsbootmenu-ui.sh

@@ -169,7 +169,7 @@ draw_be() {
       ${HAS_BORDER:+--preview-label-pos=2:bottom} \
       ${HAS_BORDER:+--preview-label="$( colorize orange " ${preview_label} " )"} \
       --header="${header}" --preview-window="up:${PREVIEW_HEIGHT}${HAS_BORDER:+,border-sharp}" \
-      --preview="/libexec/zfsbootmenu-preview {} ${BOOTFS}" < "${env}" )"; then
+      --preview="/libexec/zfsbootmenu-preview {} '${BOOTFS}'" < "${env}" )"; then
     return 1
   fi
 
@@ -214,10 +214,10 @@ draw_kernel() {
   expects="--expect=alt-d,alt-u,left,right"
 
   if ! selected="$( HELP_SECTION=kernel-management ${FUZZYSEL} \
-      --prompt "${benv} > " --tac --with-nth=2 --header="${header}" \
-      ${HAS_BORDER:+--border-label="$( global_header )"} \
+      --prompt "${benv} > " --tac --delimiter=$'\t' --with-nth=2 \
+      --header="${header}" ${HAS_BORDER:+--border-label="$( global_header )"} \
       ${expects} ${expects//alt-/ctrl-} ${expects//alt-/ctrl-alt-} \
-      --preview="/libexec/zfsbootmenu-preview ${benv} ${BOOTFS}"  \
+      --preview="/libexec/zfsbootmenu-preview '${benv}' '${BOOTFS}'"  \
       --preview-window="up:${PREVIEW_HEIGHT}${HAS_BORDER:+,border-sharp}" < "${_kernels}" )"; then
     return 1
   fi
@@ -321,7 +321,7 @@ draw_snapshots() {
         --bind="ctrl-alt-d:execute[ /libexec/zfsbootmenu-diff {+} ]${HAS_REFRESH:++refresh-preview}" \
         ${HAS_BORDER:+--preview-label-pos=${preview_offset:+${preview_offset}}bottom} \
         ${HAS_BORDER:+--preview-label="${context}"} \
-        --preview="/libexec/zfsbootmenu-preview ${benv} ${BOOTFS} ${LEGACY_CONTEXT:+\"${context}\"}" \
+        --preview="/libexec/zfsbootmenu-preview '${benv}' '${BOOTFS}' ${LEGACY_CONTEXT:+\"${context}\"}" \
         --preview-window="up:$(( PREVIEW_HEIGHT + ${LEGACY_CONTEXT:-0} ))${HAS_BORDER:+,border-sharp}" <<<"${snapshots}" )"
   then
     return 1

zfsbootmenu/libexec/zfsbootmenu-preview

@@ -11,7 +11,7 @@ ENV="${1}"
 BOOTFS="${2}"
 
 # shellcheck disable=SC2034
-IFS=' ' read -r _fs selected_kernel _initramfs <<<"$( select_kernel "${ENV}" || echo "- missing -" )"
+IFS=$'\t' read -r _fs selected_kernel _initramfs <<<"$( select_kernel "${ENV}" || echo "- missing -" )"
 selected_kernel="${selected_kernel##*/}"
 
 if [ "${BOOTFS}" = "${ENV}" ]; then