250 lines
8.0 KiB
Plaintext
Executable File
250 lines
8.0 KiB
Plaintext
Executable File
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#!/usr/bin/env bash
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# This script defines just a mode for rofi instead of being a self-contained
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# executable that launches rofi by itself. This makes it more flexible than
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# running rofi inside this script as now the user can call rofi as one pleases.
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# For instance:
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#
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# rofi -show powermenu -modi powermenu:./rofi-power-menu
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#
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# See README.md for more information.
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#
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# https://pictogrammers.com/library/mdi/
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set -e
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set -u
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# All supported choices
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all=(shutdown reboot suspend hibernate logout lockscreen)
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# By default, show all (i.e., just copy the array)
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show=("${all[@]}")
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declare -A texts
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texts[lockscreen]="lock screen"
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texts[switchuser]="switch user"
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texts[logout]="log out"
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texts[suspend]="suspend"
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texts[hibernate]="hibernate"
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texts[reboot]="reboot"
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texts[shutdown]="shut down"
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declare -A icons
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icons[lockscreen]=""
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icons[switchuser]=""
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icons[logout]=""
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icons[suspend]=""
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icons[hibernate]=""
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icons[reboot]=""
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icons[shutdown]=""
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icons[cancel]=""
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declare -A actions
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actions[lockscreen]="loginctl lock-session ${XDG_SESSION_ID-}"
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#actions[switchuser]="???"
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actions[logout]="loginctl terminate-session ${XDG_SESSION_ID-}"
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actions[suspend]="systemctl suspend"
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actions[hibernate]="systemctl hibernate"
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actions[reboot]="systemctl reboot"
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actions[shutdown]="systemctl poweroff"
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# By default, ask for confirmation for actions that are irreversible
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confirmations=(reboot shutdown logout suspend hibernate lockscreen)
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# By default, no dry run
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dryrun=false
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showsymbols=true
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function check_valid {
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option="$1"
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shift 1
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for entry in "${@}"
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do
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if [ -z "${actions[$entry]+x}" ]
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then
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echo "Invalid choice in $1: $entry" >&2
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exit 1
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fi
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done
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}
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# Parse command-line options
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parsed=$(getopt --options=h --longoptions=help,dry-run,confirm:,choices:,choose:,symbols,no-symbols --name "$0" -- "$@")
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if [ $? -ne 0 ]; then
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echo 'Terminating...' >&2
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exit 1
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fi
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eval set -- "$parsed"
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unset parsed
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while true; do
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case "$1" in
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"-h"|"--help")
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echo "rofi-power-menu - a power menu mode for Rofi"
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echo
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echo "Usage: rofi-power-menu [--choices CHOICES] [--confirm CHOICES]"
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echo " [--choose CHOICE] [--dry-run] [--symbols|--no-symbols]"
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echo
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echo "Use with Rofi in script mode. For instance, to ask for shutdown or reboot:"
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echo
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echo " rofi -show menu -modi \"menu:rofi-power-menu --choices=shutdown/reboot\""
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echo
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echo "Available options:"
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echo " --dry-run Don't perform the selected action but print it to stderr."
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echo " --choices CHOICES Show only the selected choices in the given order. Use / "
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echo " as the separator. Available choices are lockscreen, logout,"
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echo " suspend, hibernate, reboot and shutdown. By default, all"
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echo " available choices are shown."
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echo " --confirm CHOICES Require confirmation for the gives choices only. Use / as"
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echo " the separator. Available choices are lockscreen, logout,"
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echo " suspend, hibernate, reboot and shutdown. By default, only"
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echo " irreversible actions logout, reboot and shutdown require"
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echo " confirmation."
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echo " --choose CHOICE Preselect the given choice and only ask for a confirmation"
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echo " (if confirmation is set to be requested). It is strongly"
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echo " recommended to combine this option with --confirm=CHOICE"
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echo " if the choice wouldn't require confirmation by default."
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echo " Available choices are lockscreen, logout, suspend,"
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echo " hibernate, reboot and shutdown."
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echo " --[no-]symbols Show Unicode symbols or not. Requires a font with support"
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echo " for the symbols. Use, for instance, fonts from the"
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echo " Nerdfonts collection. By default, they are shown"
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echo " -h,--help Show this help text."
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exit 0
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;;
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"--dry-run")
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dryrun=true
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shift 1
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;;
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"--confirm")
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IFS='/' read -ra confirmations <<< "$2"
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check_valid "$1" "${confirmations[@]}"
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shift 2
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;;
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"--choices")
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IFS='/' read -ra show <<< "$2"
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check_valid "$1" "${show[@]}"
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shift 2
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;;
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"--choose")
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# Check that the choice is valid
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check_valid "$1" "$2"
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selectionID="$2"
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shift 2
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;;
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"--symbols")
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showsymbols=true
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shift 1
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;;
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"--no-symbols")
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showsymbols=false
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shift 1
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;;
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"--")
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shift
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break
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;;
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*)
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echo "Internal error" >&2
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exit 1
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;;
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esac
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done
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# Define the messages after parsing the CLI options so that it is possible to
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# configure them in the future.
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function write_message {
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icon="<span font_size=\"medium\">$1</span>"
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text="<span font_size=\"medium\">$2</span>"
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if [ "$showsymbols" = "true" ]
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then
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echo -n "\u200e$icon \u2068$text\u2069"
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else
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echo -n "$text"
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fi
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}
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function print_selection {
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echo -e "$1" | $(read -r -d '' entry; echo "echo $entry")
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}
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declare -A messages
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declare -A confirmationMessages
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for entry in "${all[@]}"
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do
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messages[$entry]=$(write_message "${icons[$entry]}" "${texts[$entry]^}")
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done
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for entry in "${all[@]}"
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do
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confirmationMessages[$entry]=$(write_message "${icons[$entry]}" "Yes, ${texts[$entry]}")
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done
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confirmationMessages[cancel]=$(write_message "${icons[cancel]}" "No, cancel")
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if [ $# -gt 0 ]
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then
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# If arguments given, use those as the selection
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selection="${@}"
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else
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# Otherwise, use the CLI passed choice if given
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if [ -n "${selectionID+x}" ]
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then
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selection="${messages[$selectionID]}"
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fi
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fi
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# Don't allow custom entries
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echo -e "\0no-custom\x1ftrue"
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# Use markup
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echo -e "\0markup-rows\x1ftrue"
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if [ -z "${selection+x}" ]
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then
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echo -e "\0prompt\x1f⏻"
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for entry in "${show[@]}"
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do
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echo -e "${messages[$entry]}\0icon\x1f${icons[$entry]}"
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done
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else
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for entry in "${show[@]}"
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do
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if [ "$selection" = "$(print_selection "${messages[$entry]}")" ]
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then
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# Check if the selected entry is listed in confirmation requirements
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for confirmation in "${confirmations[@]}"
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do
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if [ "$entry" = "$confirmation" ]
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then
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# Ask for confirmation
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echo -e "\0prompt\x1fAre you sure"
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echo -e "${confirmationMessages[$entry]}\0icon\x1f${icons[$entry]}"
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echo -e "${confirmationMessages[cancel]}\0icon\x1f${icons[cancel]}"
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exit 0
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fi
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done
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# If not, then no confirmation is required, so mark confirmed
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selection=$(print_selection "${confirmationMessages[$entry]}")
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fi
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if [ "$selection" = "$(print_selection "${confirmationMessages[$entry]}")" ]
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then
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if [ $dryrun = true ]
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then
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# Tell what would have been done
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echo "Selected: $entry" >&2
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else
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# Perform the action
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${actions[$entry]}
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fi
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exit 0
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fi
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if [ "$selection" = "$(print_selection "${confirmationMessages[cancel]}")" ]
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then
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# Do nothing
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exit 0
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fi
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done
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# The selection didn't match anything, so raise an error
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echo "Invalid selection: $selection" >&2
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exit 1
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fi
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