Add --alert option (bell on interactive prompt)

buildkernel

@@ -31,7 +31,7 @@ shopt -s nullglob
 # ********************** variables ********************* 
 PROGNAME="$(basename "${0}")"
 CONFFILE="/etc/${PROGNAME}.conf"
-VERSION="1.0.11"
+VERSION="1.0.12"
 ETCPROFILE="/etc/profile"
 DEFAULTEFIBOOTFILE="bootx64.efi"
 EFIBOOTFILE="${DEFAULTEFIBOOTFILE}"
@@ -77,12 +77,13 @@ export EMERGE_DEFAULT_OPTS="${EMERGE_DEFAULT_OPTS---jobs=${NUMCPUSPLUSONE} --loa
 # below silently updates an old config, auto-choosing defaults for new values
 CONFIGUPDATETYPE="olddefconfig"
 SILENTUPDATETYPE="olddefconfig"
-RED_TEXT="" GREEN_TEXT="" YELLOW_TEXT="" RESET_ATTS=""
+RED_TEXT="" GREEN_TEXT="" YELLOW_TEXT="" RESET_ATTS=""  ALERT_TEXT=""
 if [[ -v TERM && -n "${TERM}" && "${TERM}" != "dumb" ]]; then
     RED_TEXT="$(tput setaf 1)$(tput bold)"
     GREEN_TEXT="$(tput setaf 2)$(tput bold)"
     YELLOW_TEXT="$(tput setaf 3)$(tput bold)"
     RESET_ATTS="$(tput sgr0)"
+    ALERT_TEXT="$(tput bel)"
 fi
 # used in subshells
 UNCOMPRESSEDINITRAMFS="${BOOTDIR}/initramfs.cpio"
@@ -114,6 +115,7 @@ INITSYSTEM="${DEFAULTINITSYSTEM}"
 USE_PLYMOUTH=true
 VERBOSITYFLAG=""
 ASKFLAG=""
+ALERTFLAG=""
 # following array variables set by find_all_gpg_keyfile_partitions function
 declare -a GPGUUIDS GPGPARTNAMES GPGDEVNAMES GPGPARTNUMS
 # following array variables set by find_all_luks_partitions function
@@ -156,7 +158,7 @@ declare -i ARG_ASK=0 ARG_CLEAN=0 ARG_COPYFROMSTAGING=0 ARG_HELP=0
 declare -i ARG_STAGEONLY=0 ARG_UNMOUNTATEND=0 ARG_VERBOSE=0 ARG_VERSION=0
 declare -i ARG_POSTCLEAR=0 ARG_MENUCONFIG=0 ARG_SNAPSHOTBACKUP=0
 declare -i ARG_EASYSETUP=0 ARG_IS_NEW_KERNEL_AVAILABLE=0
-declare -i ARG_REBUILD_EXTERNAL_MODULES=0
+declare -i ARG_REBUILD_EXTERNAL_MODULES=0 ARG_ALERT=0
 
 # ***************** various functions ****************** 
 cleanup_and_exit_with_code() {
@@ -177,6 +179,15 @@ show() {
         echo -e "${SHOWPREFIX}${MESSAGE}${SHOWSUFFIX}"
     fi
 }
+alertshow() {
+    local MESSAGE=${1:-""}
+    local VERBLEVEL=${2:-${VERBOSITY}}
+    if ((ARG_ALERT==0)); then
+        show "${@}"
+    elif (( VERBLEVEL >=1 )); then
+        echo -e "${SHOWPREFIX}${MESSAGE}${SHOWSUFFIX}${ALERT_TEXT}"
+    fi
+}
 warning() {
     echo -e "${YELLOW_TEXT}${PREFIXSTRING}${RESET_ATTS}${PROGNAME}: Warning: ${1}" >&2
 }
@@ -191,7 +202,7 @@ trap_cleanup() {
 }
 trap trap_cleanup SIGHUP SIGQUIT SIGINT SIGTERM SIGKILL EXIT
 test_yn() {
-    echo -n -e "${SHOWPREFIX}${1} (y/n)? ${SHOWSUFFIX}"
+    echo -n -e "${SHOWPREFIX}${1} (y/n)? ${SHOWSUFFIX}${ALERT_TEXT}"
     read -r -n 1
     echo
     if [[ ${REPLY} =~ ^[Yy]$ ]]; then
@@ -201,7 +212,7 @@ test_yn() {
     fi
 }
 test_yn_need_enter() {
-    echo -n -e "${SHOWPREFIX}${1} (y/n)? ${SHOWSUFFIX}"
+    echo -n -e "${SHOWPREFIX}${1} (y/n)? ${SHOWSUFFIX}${ALERT_TEXT}"
     read -r
     echo
     if [[ ${REPLY} =~ ^[Yy]$ ]]; then
@@ -223,10 +234,14 @@ suppress_colours() {
     RESET_ATTS=""
     SHOWPREFIX="${PREFIXSTRING}"
 }
-suppress_colour_if_output_not_to_a_terminal() {
+suppress_alert() {
+    ALERT_TEXT=""
+}
+suppress_colour_and_alert_if_output_not_to_a_terminal() {
     if [ ! -t 1 -o ! -t 2 ]; then
         # we are going to a non-terminal
         suppress_colours
+        suppress_alert
     fi
 }
 check_file_exists() {
@@ -1555,7 +1570,7 @@ allow_user_to_modify_config_graphically() {
     # from calling conform_config_file(), before the UI is presented
     if ((ARG_MENUCONFIG==1)); then
         # force the menuconfig, no matter whether interactive or not
-        show "Executing make ${CONFIGTYPE}; select the kernel options you require..."
+        alertshow "Executing make ${CONFIGTYPE}; select the kernel options you require..."
         make ${CONFIGTYPE}
     elif ((ARG_ASK==1)); then
         # interactive mode
@@ -1889,6 +1904,8 @@ Usage: ${PROGNAME} [options]
 
 Options:
   -a, --ask             turns on interactive mode: you must confirm key actions
+  -A, --alert           sound terminal bell when interaction required
+                        (selecting this also automatically selects --ask)
   -b, --snapshot-backup make a datestamped kernel / configuration backup on EFI
                         system partition (to keep a last-known-good version)
   -c, --clean           do a make clean at the beginning of kernel build
@@ -1968,7 +1985,7 @@ process_command_line_options() {
     declare -i RC
     set +e
         # error trapping off, as we want to handle errors
-        TEMP="$(getopt -o abcefhimpsuvxV --long ask,snapshot-backup,clean,easy-setup,copy-from-staging,help,is-new-kernel-available,menuconfig,postclear,stage-only,verbose,unmount-at-end,rebuild-external-modules,version -n "${PROGNAME}" -- "${@}")"
+        TEMP="$(getopt -o aAbcefhimpsuvxV --long ask,alert,snapshot-backup,clean,easy-setup,copy-from-staging,help,is-new-kernel-available,menuconfig,postclear,stage-only,verbose,unmount-at-end,rebuild-external-modules,version -n "${PROGNAME}" -- "${@}")"
         RC="${?}"
     set -e
     if ((RC!=0)); then
@@ -1980,6 +1997,7 @@ process_command_line_options() {
     while true ; do
         case "${1}" in
             -a|--ask) ARG_ASK=1 ; shift ;;
+            -A|--alert) ARG_ALERT=1 ; ARG_ASK=1 ; shift ;;
             -b|--snapshot-backup) ARG_SNAPSHOTBACKUP=1 ; shift ;;
             -c|--clean) ARG_CLEAN=1 ; shift ;;
             -e|--easy-setup) ARG_EASYSETUP=1 ; shift ;;
@@ -2008,6 +2026,9 @@ process_command_line_options() {
     if ((ARG_ASK==1)); then
         ASKFLAG="--ask"
     fi
+    if ((ARG_ALERT==1)); then
+        ALERTFLAG="--alert"
+    fi
     internal_consistency_option_checks
     # process 'perform-then-exit' options
     if ((ARG_HELP==1)); then
@@ -2030,7 +2051,7 @@ process_command_line_options() {
 }
 
 # *************** start of script proper ***************
-suppress_colour_if_output_not_to_a_terminal
+suppress_colour_and_alert_if_output_not_to_a_terminal
 check_if_booted_under_efi
 find_all_usb_partitions
 source_etc_conf_file

buildkernel.8

@@ -1,4 +1,4 @@
-.TH BUILDKERNEL 8 "Version 1.0.11: August 2015"
+.TH BUILDKERNEL 8 "Version 1.0.12: August 2015"
 .SH NAME
 buildkernel \- build secure boot kernel, save to EFI system partition
 .SH SYNOPSIS
@@ -93,6 +93,10 @@ performs a filesystem sync and then unmounts the EFI system partition (if you so
 Sets interactive mode, in which you will be asked what to do at a number of
 key steps in the process (see \fBALGORITHM DETAIL\fR, above).
 .TP
+.BR \-A ", " \-\-alert
+If possible, sounds the terminal bell when interaction is needed.
+Selecting this option automatically selects \fB--ask\fR.
+.TP
 .BR \-b ", " \-\-snapshot\-backup
 Makes a backup of the current kernel and config on the EFI system partition,
 using a a datestamp prefix for both files (based on the system date at the time

buildkernel.conf.5

@@ -1,4 +1,4 @@
-.TH BUILDKERNEL 5 "Version 1.0.11: August 2015"
+.TH BUILDKERNEL 5 "Version 1.0.12: August 2015"
 .SH NAME
 buildkernel.conf \- a configuration file for \fBbuildkernel\fR(8)
 .SH SYNOPSIS