Felitendo
243115ea19
A run that held back a blocker then upgraded 214 packages printed one line and then nothing for nearly five minutes while pacman downloaded and installed. It looked hung, so it got killed - during pacman's uninterruptible commit phase, which meant the packages landed but our bookkeeping never did. The menu then kept showing a failure from a previous run on a fully up-to-date machine. pacman, the AUR helper and flatpak now stream their output when a person is watching, and the progress bar is left enabled for that case. Timer runs are unchanged: quiet, --noprogressbar, everything captured in the log. Interactivity is decided once at startup rather than tested at the point of use. cau_pacman_flags runs inside a process substitution, so its stdout is always a pipe and a -t 1 check there would have silently always been false. INT/TERM/HUP now record last_result=interrupted, so a run that is stopped says so instead of leaving the previous verdict standing.
205 lines
6.3 KiB
Bash
205 lines
6.3 KiB
Bash
# shellcheck shell=bash
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#
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# The interactive front end.
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#
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# This is the part the machine's owner actually sees, so it stays deliberately
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# small: two switches, a status block, and a way to look at what happened.
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CAU_UNIT="cachy-auto-update.timer"
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# _cau_row <label> <value>
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# printf's %-28s pads by bytes, so a label containing "ü" comes out one column
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# short. ${#s} counts characters in a UTF-8 locale, so the padding is computed
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# here instead - and applied inline, because command substitution would eat the
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# trailing spaces again.
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_cau_row() {
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local label="$1" value="$2" pad
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pad=$(( 28 - ${#label} ))
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(( pad < 0 )) && pad=0
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printf ' %s%*s %s\n' "$label" "$pad" '' "$value"
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}
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_cau_onoff() {
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if [[ $1 == yes ]]; then
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printf '%s%s%s' "$CAU_C_GREEN" "$(cau_msg "ON")" "$CAU_C_RESET"
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else
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printf '%s%s%s' "$CAU_C_DIM" "$(cau_msg "OFF")" "$CAU_C_RESET"
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fi
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}
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# cau_timer_next
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# When systemd will fire the timer next, in the user's locale.
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cau_timer_next() {
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local raw
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cau_have systemctl || { cau_msg "unknown"; return; }
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systemctl is-enabled --quiet "$CAU_UNIT" 2>/dev/null || { cau_msg "not scheduled"; return; }
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raw="$(systemctl show "$CAU_UNIT" --property=NextElapseUSecRealtime --value 2>/dev/null)"
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if [[ $raw =~ ^[0-9]+$ ]] && (( raw > 0 )); then
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date -d "@$(( raw / 1000000 ))" '+%c'
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elif [[ -n $raw && $raw != 0 && $raw != n/a ]]; then
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printf '%s' "$raw"
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else
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cau_msg "unknown"
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fi
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}
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# cau_ui_status
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# Shared by the `status` subcommand and the menu header.
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cau_ui_status() {
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local last_run last_success result counts reboot
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local pac aur fp ai total
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last_run="$(cau_state_read last_run '')"
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last_success="$(cau_state_read last_success '')"
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result="$(cau_state_read last_result '')"
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counts="$(cau_state_read last_counts '0 0 0 0')"
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reboot="$(cau_state_read reboot_needed 0)"
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read -r pac aur fp ai <<< "$counts"
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pac=${pac:-0}; aur=${aur:-0}; fp=${fp:-0}; ai=${ai:-0}
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total=$(( pac + aur + fp + ai ))
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_cau_row "$(cau_msg "Automatic updates")" "$(_cau_onoff "$CFG_ENABLED")"
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_cau_row "$(cau_msg "Notifications")" "$(_cau_onoff "$CFG_NOTIFICATIONS")"
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printf '\n'
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_cau_row "$(cau_msg "Last check")" "$(cau_time_ago "$last_run")"
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if [[ -n $last_success ]]; then
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_cau_row "$(cau_msg "Last successful update")" \
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"$(date -d "@$last_success" '+%c' 2>/dev/null || printf '%s' "$last_success") ($(cau_msg "%d packages" "$total"))"
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else
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_cau_row "$(cau_msg "Last successful update")" "$(cau_msg "never")"
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fi
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_cau_row "$(cau_msg "Next scheduled run")" "$(cau_timer_next)"
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if [[ $result == failed ]]; then
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printf '\n %s%s%s\n' "$CAU_C_YELLOW" \
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"$(cau_msg "The last run reported a problem - see 'cachy-auto-update log'.")" \
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"$CAU_C_RESET"
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elif [[ $result == interrupted ]]; then
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printf '\n %s%s%s\n' "$CAU_C_YELLOW" \
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"$(cau_msg "The last run was stopped before it finished.")" \
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"$CAU_C_RESET"
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fi
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if [[ $reboot == 1 ]]; then
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printf '\n %s%s%s\n' "$CAU_C_YELLOW" \
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"$(cau_msg "A restart is recommended to finish a kernel update.")" \
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"$CAU_C_RESET"
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fi
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local held
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held="$(cau_state_read held_back '')"
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if [[ -n $held ]]; then
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printf '\n %s%s%s\n' "$CAU_C_YELLOW" \
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"$(cau_msg "Held back: %s" "$held")" "$CAU_C_RESET"
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fi
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}
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# cau_ui_status_conditions
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# Evaluates every gate individually. Without this there is no way to explain
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# why an enabled updater has not done anything on somebody else's machine.
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cau_ui_status_conditions() {
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local pct
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printf '\n %s\n' "$(cau_msg "Current conditions:")"
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if cau_on_ac; then
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printf ' %s %s\n' "${CAU_C_GREEN}✔${CAU_C_RESET}" "$(cau_msg "on AC power")"
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else
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pct="$(cau_battery_percent || true)"
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if [[ -n $pct ]]; then
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printf ' %s %s\n' "${CAU_C_DIM}•${CAU_C_RESET}" \
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"$(cau_msg "on battery (%d%%, threshold %d%%)" "$pct" "$CFG_MIN_BATTERY")"
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else
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printf ' %s %s\n' "${CAU_C_DIM}•${CAU_C_RESET}" "$(cau_msg "on battery")"
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fi
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fi
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CAU_SKIP_REASON=''
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if cau_busy; then
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printf ' %s %s\n' "${CAU_C_YELLOW}•${CAU_C_RESET}" "$CAU_SKIP_REASON"
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else
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printf ' %s %s\n' "${CAU_C_GREEN}✔${CAU_C_RESET}" "$(cau_msg "no game detected")"
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fi
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CAU_SKIP_REASON=''
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if cau_package_manager_busy; then
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printf ' %s %s\n' "${CAU_C_YELLOW}•${CAU_C_RESET}" "$CAU_SKIP_REASON"
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else
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printf ' %s %s\n' "${CAU_C_GREEN}✔${CAU_C_RESET}" "$(cau_msg "package system is free")"
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fi
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}
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# cau_ui_menu
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# The default view. Reloads the config after every action so the toggles always
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# reflect what is actually on disk.
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cau_ui_menu() {
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local choice
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while true; do
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cau_config_load
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clear 2>/dev/null || true
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cau_head " $CAU_PRETTY"
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cau_ui_status
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printf '\n'
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printf ' [1] %s\n' "$(cau_msg "Toggle automatic updates")"
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printf ' [2] %s\n' "$(cau_msg "Toggle notifications")"
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printf ' [3] %s\n' "$(cau_msg "Update now")"
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printf ' [4] %s\n' "$(cau_msg "Show log")"
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printf ' [5] %s\n' "$(cau_msg "Show current conditions")"
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printf ' [q] %s\n' "$(cau_msg "Quit")"
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printf '\n > '
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# One keypress, no Enter. -s keeps the raw character out of the
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# display so the echo below is the only thing printed, and a failing
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# read means EOF (Ctrl-D, or a script piping input) - that quits.
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read -rsn1 choice || { printf '\n'; return 0; }
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printf '%s\n' "$choice"
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case "$choice" in
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# The two switches flip and return straight to the menu, where the
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# status block shows the result. Only a warning or an error holds
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# the screen (see CAU_UI_NEEDS_ACK).
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1)
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CAU_UI_NEEDS_ACK=''
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if [[ $CFG_ENABLED == yes ]]; then cau_do_disable; else cau_do_enable; fi
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if [[ -n $CAU_UI_NEEDS_ACK ]]; then cau_pause; fi
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;;
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2)
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CAU_UI_NEEDS_ACK=''
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if [[ $CFG_NOTIFICATIONS == yes ]]; then
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cau_do_notifications off
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else
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cau_do_notifications on
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fi
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if [[ -n $CAU_UI_NEEDS_ACK ]]; then cau_pause; fi
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;;
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3) cau_do_run --force; cau_pause ;;
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4) cau_do_log; cau_pause ;;
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5) cau_ui_status_conditions; cau_pause ;;
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q|Q) return 0 ;;
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$'\e')
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# Arrow keys and friends arrive as ESC [ X. Swallow the rest so
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# one keypress does not redraw the menu three times. Escape is
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# deliberately not a quit key: that would make a stray arrow
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# key close the menu.
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read -rsn2 -t 0.05 _ 2>/dev/null || true
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;;
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# Anything else, Enter included, just redraws.
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*) ;;
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esac
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done
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}
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cau_pause() {
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printf '\n %s' "$(cau_msg "Press any key to continue...")"
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read -rsn1 _ || true
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printf '\n'
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}
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