Add HAS_REFRESH back in, it's still useful

Author: zdykstra

90zfsbootmenu/module-setup.sh

@@ -250,6 +250,16 @@ install() {
     mark_hostonly /etc/hostid
   fi
 
+  # Check if fuzzy finder supports the refresh-preview flag
+  # Added in fzf 0.22.0
+  if command -v "${FUZZY_FIND}" >/dev/null 2>&1 && \
+    echo "abc" | "${FUZZY_FIND}" -f "abc" --bind "alt-l:refresh-preview" --exit-0 >/dev/null 2>&1
+  then
+    has_refresh=1
+  else
+    has_refresh=
+  fi
+
   # Check if fuzzy finder supports the --info= flag
   # Added in fzf 0.19.0
   if command -v "${FUZZY_FIND}" >/dev/null 2>&1 && \
@@ -264,6 +274,7 @@ install() {
   # shellcheck disable=SC2154
   cat << EOF > "${initdir}/etc/zfsbootmenu.conf"
 export BYTE_ORDER=${endian:-le}
+export HAS_REFRESH=${has_refresh}
 export HAS_INFO=${has_info}
 EOF
 

90zfsbootmenu/zfsbootmenu.sh

@@ -76,11 +76,25 @@ fuzzy_default_options=( "--ansi" "--no-clear"
   "--bind" '"alt-t:execute[ /sbin/ztrace > ${control_term} ]"'
   "--bind" '"ctrl-t:execute[ /sbin/ztrace > ${control_term} ]"'
   "--bind" '"ctrl-alt-t:execute[ /sbin/ztrace > ${control_term} ]"'
-  "--bind" '"alt-l:execute[ /bin/zlogtail -l err,warn -F user,daemon -c ]"'
-  "--bind" '"ctrl-l:execute[ /bin/zlogtail -l err,warn -F user,daemon -c ]"'
-  "--bind" '"ctrl-alt-l:execute[ /bin/zlogtail -l err,warn -F user,daemon -c ]"'
 )
 
+# refresh-preview will redraw the top header after zlogtail has been executed
+# doing so will remove the [!] from warnings/errors
+# with out this, a new BE has to be selected to force a preview redraw
+if [ -n "${HAS_REFRESH}" ] ; then
+  fuzzy_default_options+=(
+    "--bind" '"alt-l:execute[ /bin/zlogtail -l err,warn -F user,daemon -c ]+refresh-preview"'
+    "--bind" '"ctrl-l:execute[ /bin/zlogtail -l err,warn -F user,daemon -c ]+refresh-preview"'
+    "--bind" '"ctrl-alt-l:execute[ /bin/zlogtail -l err,warn -F user,daemon -c ]+refresh-preview"'
+  )
+else
+  fuzzy_default_options+=(
+    "--bind" '"alt-l:execute[ /bin/zlogtail -l err,warn -F user,daemon -c ]"'
+    "--bind" '"ctrl-l:execute[ /bin/zlogtail -l err,warn -F user,daemon -c ]"'
+    "--bind" '"ctrl-alt-l:execute[ /bin/zlogtail -l err,warn -F user,daemon -c ]"'
+  )
+fi
+
 if command -v fzf >/dev/null 2>&1; then
   zdebug "using fzf for pager"
   export FUZZYSEL=fzf