From d6b5c0a6c3f35d849523ef686ff3815e2c068e0d Mon Sep 17 00:00:00 2001 From: Dieter Plaetinck Date: Wed, 24 Mar 2010 23:01:12 +0100 Subject: rename lib-ui to libui --- libui.sh | 648 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 648 insertions(+) create mode 100644 libui.sh (limited to 'libui.sh') diff --git a/libui.sh b/libui.sh new file mode 100644 index 0000000..1cb3d11 --- /dev/null +++ b/libui.sh @@ -0,0 +1,648 @@ +#!/bin/bash +# TODO: implement 'retry until user does it correctly' everywhere +# TODO: at some places we should check if $1 etc is only 1 word because we often depend on that +# TODO: standardize. eg everything $1= question/title, $2=default. also default should probably be 'no' for no default everywhere +# TODO: figure out something to make dia windows always big enough, yet fit nicely in the terminal + + +# you should call this function when you want to use this library (can be called multiple times, to change ui type or other settings) +# $1 ui type (dia or cli). defaults to cli +# $2 directory for tmp files. default /tmp (leave empty for default) +# $3 logfile (leave empty to disable logging) +# $4 debug setting (1/0) +libui-sh-init () +{ + LIBUI_UI=${1:-cli} + LIBUI_TMP_DIR=/tmp + if [ -n "$2"]; then + LIBUI_TMP_DIR=$2 + fi + LIBUI_LOG=0 + if [ -n "$3"]; then + LIBUI_LOG=1 + LIBUI_LOG_FILE=$3 + LIBUI_LOG_DIR=$(basename $LIBUI_LOG_FILE) + fi + LIBUI_DEBUG=${4:-0} + LIBUI_DIA_SUCCESSIVE_ITEMS=$LIBUI_TMP_DIR/libui-sh-dia-successive-items + LIBUI_FOLLOW_PID=$LIBUI_TMP_DIR/libui-sh-follow-pid + LIBUI_DIA_MENU_TEXT="Use the UP and DOWN arrows to navigate menus. Use TAB to switch between buttons and ENTER to select." +} + + + +### Functions that your code can use. Cli/dialog mode is fully transparant. This library takes care of it ### +# you could write your own functions implementing other things (kdedialogs, zenity dialogs, ..), +# - just implement the functions below +# - source your library +# - libui-sh-init with the correct UI type + + +# display error message and die +# Do not call other functions like debug, notify, .. here because that might cause loops! +die_error () +{ + echo "ERROR: $@" >&2 + exit 2 +} + + +# display warning message +# $1 title +# $2 item to show +# $3 type of item. msg or text if it's a file. (optional. defaults to msg) +show_warning () +{ + [ -z "$1" ] && die_error "show_warning needs a title" + [ -z "$2" ] && die_error "show_warning needs an item to show" + [ -n "$3" -a "$3" != msg -a "$3" != text ] && die_error "show_warning \$3 must be text or msg" + type=msg + [ -n "$3" ] && type=$3 + debug 'UI' "show_warning '$1': $2 ($type)" + [ `type -t _${LIBUI_UI}_show_warning` == function ] || die_error "_${LIBUI_UI}_show_warning is not a function" + _${LIBUI_UI}_show_warning "$1" "$2" $type +} + + +#notify user +notify () +{ + debug 'UI' "notify: $@" + [ `type -t _${LIBUI_UI}_notify` == function ] || die_error "_${LIBUI_UI}_notify is not a function" + _${LIBUI_UI}_notify "$@" +} + + +# like notify, but user does not need to confirm explicitly when in dia mode +# $1 str +# $2 0/ this infofy call is part of a successive list of things (eg repeat previous things, keep adding items to a list) (only needed for dia, cli does this by design). +# You can keep several "lists of successive things" by grouping them with +# this is somewhat similar to follow_progress. Note that this list isn't cleared unless you set $3 to 1. default 0. (optional). +# $3 0/1 this is the last one of the group of several things (eg clear buffer). default 0. (optional) +infofy () #TODO: when using successive things, the screen can become full and you only see the old stuff, not the new +{ + successive=${2:-0} + succ_last=${3:-0} + debug 'UI' "infofy: $1" + [ `type -t _${LIBUI_UI}_infofy` == function ] || die_error "_${LIBUI_UI}_infofy is not a function" + _${LIBUI_UI}_infofy "$1" $successive $succ_last +} + +# logging of stuff +log () +{ + mkdir -p $LIBUI_LOG_DIR || die_error "Cannot create log directory" + str="[LOG] `date +"%Y-%m-%d %H:%M:%S"` $@" + echo -e "$str" > $LOG || die_error "Cannot log $str to $LOG" + + [ "$LIBUI_LOG" = 1 ] && ( echo -e "$str" >> $LIBUI_LOG_FILE || die_error "Cannot log $str to $LIBUI_LOG_FILE" ) +} + + +# $1 = one or more categories (separated by spaces) from: MAIN, PROCEDURE, UI, UI-INTERACTIVE, FS, MISC, NETWORK, PACMAN, SOFTWARE +# You should always at least specify where you are (main, procedure or the name of the lib) and optionally further specification: eg in a ui function that works with pacman. +# This is very useful in ui-interactive where we always work with something else. +# $2 = string to log +debug () +{ + valid_cats=(MAIN PROCEDURE UI UI-INTERACTIVE FS MISC NETWORK PACMAN SOFTWARE) + for cat in $1 + do + check_is_in $cat "${valid_cats[@]}" || die_error "debug \$1 contains a value ($cat) which is not a valid debug category" + done + [ -n "$2" ] || die_error "debug \$2 cannot be empty" + + mkdir -p $LIBUI_LOG_DIR || die_error "Cannot create log directory" + if [ "$LIBUI_DEBUG" = "1" ] + then + str="[DEBUG $1 ] $2" + echo -e "$str" > $LOG || die_error "Cannot debug $str to $LOG" + [ "$LIBUI_LOG" = 1 ] && ( echo -e "$str" >> $LIBUI_LOG_FILE || die_error "Cannot debug $str to $LIBUI_LOG_FILE" ) + fi +} + + + +# ask for a timezone. +# this is pretty similar to how tzselect looks, but we support dia+cli + we don't actually change the clock + we don't show a date/time and ask whether it's okay. that comes later. +ask_timezone () +{ + REGIONS="" + for i in $(grep '^[A-Z]' /usr/share/zoneinfo/zone.tab | cut -f 3 | sed -e 's#/.*##g'| sort -u); do + REGIONS="$REGIONS $i -" + done + while true; do + ask_option no "Please select a region" '' required $REGIONS || return 1 + region=$ANSWER_OPTION + ZONES="" + for i in $(grep '^[A-Z]' /usr/share/zoneinfo/zone.tab | grep $region/ | cut -f 3 | sed -e "s#$region/##g"| sort -u); do + ZONES="$ZONES $i -" + done + ask_option no "Please select a timezone" '' required $ZONES || return 1 + zone=$ANSWER_OPTION + ANSWER_TIMEZONE="$region/$zone" && return + done +} + + +# ask the user to make a selection from a certain group of things +# $1 question +# shift;shift; $@ list of options. first tag, then item then ON/OFF. if item == ^ or - it will not be shown in cli mode. +# for nostalgic reasons, you can set item to ^ for ON items and - for OFF items. afaik this doesn't have any meaning other then extra visual separation though +ask_checklist () +{ + [ -z "$1" ] && die_error "ask_checklist needs a question!" + [ -z "$4" ] && debug 'UI' "ask_checklist args: $@" && die_error "ask_checklist makes only sense if you specify at least 1 thing (tag,item and ON/OFF switch)" + [ `type -t _${LIBUI_UI}_ask_checklist` == function ] || die_error "_${LIBUI_UI}_ask_checklist is not a function" + _${LIBUI_UI}_ask_checklist "$@" +} + + +ask_datetime () +{ + [ `type -t _${LIBUI_UI}_ask_datetime` == function ] || die_error "_${LIBUI_UI}_ask_datetime is not a function" + _${LIBUI_UI}_ask_datetime "$@" +} + + +# ask for a number. +# $1 question +# $2 lower limit (optional) +# $3 upper limit (optional. set 0 for none) +# $4 default (optional) +# sets $ANSWER_NUMBER to the number the user specified +# returns 1 if the user cancelled or did not enter a numeric, 0 otherwise +ask_number () +{ + [ -z "$1" ] && die_error "ask_number needs a question!" + [ -n "$2" ] && [[ "$2" = *[^0-9]* ]] && die_error "ask_number \$2 must be a number! not $2" + [ -n "$3" ] && [[ "$3" = *[^0-9]* ]] && die_error "ask_number \$3 must be a number! not $3" + [ -n "$4" ] && [[ "$4" = *[^0-9]* ]] && die_error "ask_number \$4 must be a number! not $4" + [ `type -t _${LIBUI_UI}_ask_number` == function ] || die_error "_${LIBUI_UI}_ask_number is not a function" + _${LIBUI_UI}_ask_number "$1" $2 $3 $4 +} + + +# ask the user to choose something +# $1 default item (set to 'no' for none) +# $2 title +# $3 additional explanation (default: '') +# $4 type (required or optional). '' means required. cancel labels will be 'Cancel' and 'Skip' respectively. +# shift 4 ; $@ list of options. first tag. then name. (eg tagA itemA "tag B" 'item B' ) + +# $ANSWER_OPTION : selected answer (if none selected: default (if available), or empty string otherwise). if user hits cancel or skip, this is an empty string. +# $? : 0 if the user selected anything or skipped (when optional), when user cancelled: 1 +ask_option () +{ + [ `type -t _${LIBUI_UI}_ask_option` == function ] || die_error "_${LIBUI_UI}_ask_option is not a function" + _${LIBUI_UI}_ask_option "$@" +} + + +# ask the user a password. return is stored in $PASSWORD or $_PASSWORD +# $1 type (optional. eg 'svn', 'ssh'). +ask_password () +{ + [ `type -t _${LIBUI_UI}_ask_password` == function ] || die_error "_${LIBUI_UI}_ask_pasword is not a function" + _${LIBUI_UI}_ask_password "$@" +} + + +# ask for a string. +# $1 question +# $2 default (optional) +# $3 exitcode to use when string is empty and there was no default, or default was ignored (1 default) +# Sets $ANSWER_STRING to response. +# returns 1 if the user cancelled, 0 otherwise +ask_string () +{ + [ -z "$1" ] && die_error "ask_string needs a question!" + [ `type -t _${LIBUI_UI}_ask_string` == function ] || die_error "_${LIBUI_UI}_ask_string is not a function" + _${LIBUI_UI}_ask_string "$1" "$2" "$3" +} + + +# ask a yes/no question. +# $1 question +# $2 default answer yes/no (optional) +# returns 0 if response is yes/y (case insensitive). 1 otherwise +ask_yesno () +{ + [ -z "$1" ] && die_error "ask_yesno needs a question!" + [ `type -t _${LIBUI_UI}_ask_yesno` == function ] || die_error "_${LIBUI_UI}_ask_yesno is not a function" + _${LIBUI_UI}_ask_yesno "$@" +} + + + + + +# follow the progress of something by showing it's log, updating real-time +# $1 title +# $2 logfile +# $3 pid to monitor. if process stopped, stop following (only used in cli mode) +follow_progress () +{ + [ -z "$1" ] && die_error "follow_progress needs a title!" + [ -z "$2" ] && die_error "follow_progress needs a logfile to follow!" + FOLLOW_PID= + [ `type -t _${LIBUI_UI}_follow_progress` == function ] || die_error "_${LIBUI_UI}_follow_progress is not a function" + _${LIBUI_UI}_follow_progress "$@" +} + + + + + + +### Internal functions, supposed to be only used internally in this library ### + + +# DIALOG() taken from setup +# an el-cheapo dialog wrapper +# +# parameters: see dialog(1) +# returns: whatever dialog did +_dia_dialog() +{ + dialog --backtitle "$TITLE" --aspect 15 "$@" 3>&1 1>&2 2>&3 3>&- +} + + +_dia_show_warning () +{ + _dia_dialog --title "$1" --exit-label "Continue" --$3box "$2" 0 0 || die_error "dialog could not show --$3box $2. often this means a file does not exist" +} + + +_dia_notify () +{ + _dia_dialog --msgbox "$@" 0 0 +} + + +_dia_infofy () +{ + str="$1" + if [ "$2" != 0 ] + then + echo "$1" >> $LIBUI_DIA_SUCCESSIVE_ITEMS-$2 + str=`cat $LIBUI_DIA_SUCCESSIVE_ITEMS-$2` + fi + [ "$3" = 1 ] && rm $LIBUI_DIA_SUCCESSIVE_ITEMS-$2 + _dia_dialog --infobox "$str" 0 0 +} + + +_dia_ask_checklist () +{ + str=$1 + shift + list= + while [ -n "$1" ] + do + [ -z "$2" ] && die_error "no item given for element $1" + [ -z "$3" ] && die_error "no ON/OFF switch given for element $1 (item $2)" + [ "$3" != ON -a "$3" != OFF ] && die_error "element $1 (item $2) has status $3 instead of ON/OFF!" + list="$list $1 $2 $3" + shift 3 + done + ANSWER_CHECKLIST=$(_dia_dialog --checklist "$str" 0 0 0 $list) + local ret=$? + debug 'UI' "_dia_ask_checklist: user checked ON: $ANSWER_CHECKLIST" + return $ret +} + + +_dia_ask_datetime () +{ + # display and ask to set date/time + local _date _time + _date=$(_dia_dialog --calendar "Set the date.\nUse to navigate and arrow keys to change values." 0 0 0 0 0) || return 1 # form like: 07/12/2008 + _time=$(_dia_dialog --timebox "Set the time.\nUse to navigate and up/down to change values." 0 0) || return 1 # form like: 15:26:46 + debug 'UI' "Date as specified by user $_date time: $_time" + + # DD/MM/YYYY hh:mm:ss -> MMDDhhmmYYYY.ss (date default format, set like date $ANSWER_DATETIME) Not enabled because there is no use for it i think. + # ANSWER_DATETIME=$(echo "$_date" "$_time" | sed 's#\(..\)/\(..\)/\(....\) \(..\):\(..\):\(..\)#\2\1\4\5\3\6#g') + # DD/MM/YYYY hh:mm:ss -> YYYY-MM-DD hh:mm:ss ( date string format, set like date -s "$ANSWER_DATETIME") + ANSWER_DATETIME="$(echo "$_date" "$_time" | sed 's#\(..\)/\(..\)/\(....\) \(..\):\(..\):\(..\)#\3-\2-\1 \4:\5:\6#g')" +} + + +_dia_ask_number () +{ + #TODO: i'm not entirely sure this works perfectly. what if user doesnt give anything or wants to abort? + while true + do + str="$1" + [ -n $2 ] && str2="min $2" + [ -n $3 -a $3 != '0' ] && str2="$str2 max $3" + [ -n "$str2" ] && str="$str ( $str2 )" + ANSWER_NUMBER=$(_dia_dialog --inputbox "$str" 0 0 $4) + local ret=$? + if [[ $ANSWER_NUMBER = *[^0-9]* ]] #TODO: handle exit state + then + show_warning 'Invalid number input' "$ANSWER_NUMBER is not a number! try again." + else + if [ -n "$3" -a $3 != '0' -a $ANSWER_NUMBER -gt $3 ] + then + show_warning 'Invalid number input' "$ANSWER_NUMBER is bigger then the maximum,$3! try again." + elif [ -n "$2" -a $ANSWER_NUMBER -lt $2 ] + then + show_warning 'Invalid number input' "$ANSWER_NUMBER is smaller then the minimum,$2! try again." + else + break + fi + fi + done + debug 'UI' "_dia_ask_number: user entered: $ANSWER_NUMBER" + [ -z "$ANSWER_NUMBER" ] && return 1 + return $ret +} + + +_dia_ask_option () +{ + DEFAULT="" + [ "$1" != 'no' ] && DEFAULT="--default-item $1" + [ -z "$2" ] && die_error "ask_option \$2 must be the title" + # $3 is optional more info + TYPE=${4:-required} + [ "$TYPE" != required -a "$TYPE" != optional ] && debug 'UI' "_dia_ask_option args: $@" && die_error "ask option \$4 must be required or optional or ''. not $TYPE" + [ -z "$6" ] && debug 'UI' "_dia_ask_option args: $@" && die_error "ask_option makes only sense if you specify at least one option (with tag and name)" #nothing wrong with only 1 option. it still shows useful info to the user + + DIA_MENU_TITLE=$2 + EXTRA_INFO=$3 + shift 4 + CANCEL_LABEL=Cancel + [ $TYPE == optional ] && CANCEL_LABEL='Skip' + ANSWER_OPTION=$(_dia_dialog $DEFAULT --cancel-label $CANCEL_LABEL --colors --title " $DIA_MENU_TITLE " --menu "$LIBUI_DIA_MENU_TEXT $EXTRA_INFO" 0 0 0 "$@") + local ret=$? + debug 'UI' "dia_ask_option: ANSWER_OPTION: $ANSWER_OPTION, returncode (skip/cancel): $ret ($DIA_MENU_TITLE)" + [ $TYPE == required ] && return $ret + return 0 # TODO: check if dialog returned >0 because of an other reason then the user hitting 'cancel/skip' +} + + +_dia_ask_password () +{ + if [ -n "$1" ] + then + type_l=`tr '[:upper:]' '[:lower:]' <<< $1` + type_u=`tr '[:lower:]' '[:upper:]' <<< $1` + else + type_l= + type_u= + fi + + local ANSWER=$(_dia_dialog --passwordbox "Enter your $type_l password" 8 65 "$2") + local ret=$? + [ -n "$type_u" ] && read ${type_u}_PASSWORD <<< $ANSWER + [ -z "$type_u" ] && PASSWORD=$ANSWER + echo $ANSWER + debug 'UI' "_dia_ask_password: user entered <>" + return $ret +} + + +_dia_ask_string () +{ + exitcode=${3:-1} + ANSWER_STRING=$(_dia_dialog --inputbox "$1" 0 0 "$2") + local ret=$? + debug 'UI' "_dia_ask_string: user entered $ANSWER_STRING" + [ -z "$ANSWER_STRING" ] && return $exitcode + return $ret +} + + + +_dia_ask_yesno () +{ + local default + str=$1 + # If $2 contains an explicit 'no' we set defaultno for yesno dialog + [ "$2" == "no" ] && default="--defaultno" + dialog $default --yesno "$str" 0 0 # returns 0 for yes, 1 for no + local ret=$? + [ $ret -eq 0 ] && debug 'UI' "dia_ask_yesno: User picked YES" + [ $ret -gt 0 ] && debug 'UI' "dia_ask_yesno: User picked NO" + return $ret +} + + +_dia_follow_progress () +{ + title=$1 + logfile=$2 + + _dia_dialog --title "$1" --no-kill --tailboxbg "$2" 0 0 >$LIBUI_FOLLOW_PID + FOLLOW_PID=`cat $LIBUI_FOLLOW_PID` + rm $LIBUI_FOLLOW_PID + + # I wish something like this would work. anyone who can explain me why it doesn't get's to be contributor of the month. + # FOLLOW_PID=`_dia_dialog --title "$1" --no-kill --tailboxbg "$2" 0 0 2>&1 >/dev/null | head -n 1` + + # Also this doesn't work: + # _dia_dialog --title "$1" --no-kill --tailboxbg "$2" 0 0 &>/dev/null & + # FOLLOW_PID=$! + + # Also the new stdout-stderr-swapping isn't a clean solution for that. When command substitition is used bash will + # wait until the command terminates, dialog's forking to background will fail. + # FOLLOW_PID=$(_dia_dialog --title "$1" --no-kill --tailboxbg "$2" 0 0) +} + + + + +_cli_show_warning () +{ + echo "WARNING: $1" + [ "$3" = msg ] && echo -e "$2" + [ "$3" = text ] && (cat $2 || die_error "Could not cat $2") +} + + +_cli_notify () +{ + echo -e "$@" +} + + +_cli_infofy () +{ + echo -e "$1" +} + + +_cli_ask_checklist () +{ + str=$1 + shift + output= + while [ -n "$1" ] + do + [ -z "$2" ] && die_error "no item given for element $1" + [ -z "$3" ] && die_error "no ON/OFF switch given for element $1 (item $2)" + [ "$3" != ON -a "$3" != OFF ] && die_error "element $1 (item $2) has status $3 instead of ON/OFF!" + item=$1 + [ "$2" != '-' -a "$2" != '^' ] && item="$1 ($2)" + [ "$3" = ON ] && ask_yesno "Enable $1 ?" yes && output="$output $1" + [ "$3" = OFF ] && ask_yesno "Enable $1 ?" no && output="$output $1" #TODO: for some reason, default is always N when asked to select packages + shift 3 + done + ANSWER_CHECKLIST=$output + return 0 +} + + +_cli_ask_datetime () +{ + ask_string "Enter date [YYYY-MM-DD hh:mm:ss]" + ANSWER_DATETIME=$ANSWER_STRING + debug 'UI' "Date as picked by user: $ANSWER_STRING" +} + + +_cli_ask_number () +{ + #TODO: i'm not entirely sure this works perfectly. what if user doesnt give anything or wants to abort? + while true + do + str="$1" + [ -n $2 ] && str2="min $2" + [ -n $3 -a $3 != '0' ] && str2="$str2 max $3" + [ -n $4 ] && str2=" default $4" + [ -n "$str2" ] && str="$str ( $str2 )" + echo "$str" + read ANSWER_NUMBER + if [[ $ANSWER_NUMBER = *[^0-9]* ]] + then + show_warning 'Invalid number input' "$ANSWER_NUMBER is not a number! try again." + else + if [ -n "$3" -a $3 != '0' -a $ANSWER_NUMBER -gt $3 ] + then + show_warning 'Invalid number input' "$ANSWER_NUMBER is bigger then the maximum,$3! try again." + elif [ -n "$2" -a $ANSWER_NUMBER -lt $2 ] + then + show_warning 'Invalid number input' "$ANSWER_NUMBER is smaller then the minimum,$2! try again." + else + break + fi + fi + done + debug 'UI' "cli_ask_number: user entered: $ANSWER_NUMBER" + [ -z "$ANSWER_NUMBER" ] && return 1 + return 0 +} + + +_cli_ask_option () +{ + #TODO: strip out color codes + #TODO: if user entered incorrect choice, ask him again + DEFAULT= + [ "$1" != 'no' ] && DEFAULT=$1 #TODO: if user forgot to specify a default (eg all args are 1 pos to the left, we can end up in an endless loop :s) + [ -z "$2" ] && die_error "ask_option \$2 must be the title" + # $3 is optional more info + TYPE=${4:-required} + [ "$TYPE" != required -a "$TYPE" != optional ] && debug 'UI' "_dia_ask_option args: $@" && die_error "ask option \$4 must be required or optional or ''. not $TYPE" + [ -z "$6" ] && debug 'UI' "_dia_ask_option args: $@" && die_error "ask_option makes only sense if you specify at least one option (with tag and name)" #nothing wrong with only 1 option. it still shows useful info to the user + + MENU_TITLE=$2 + EXTRA_INFO=$3 + shift 4 + + echo "$MENU_TITLE" + [ -n "$EXTRA_INFO" ] && echo "$EXTRA_INFO" + while [ -n "$1" ] + do + echo "$1 ] $2" + shift 2 + done + CANCEL_LABEL=CANCEL + [ $TYPE == optional ] && CANCEL_LABEL=SKIP + echo "$CANCEL_LABEL ] $CANCEL_LABEL" + [ -n "$DEFAULT" ] && echo -n " > [ $DEFAULT ] " + [ -z "$DEFAULT" ] && echo -n " > " + read ANSWER_OPTION + local ret=0 + [ -z "$ANSWER_OPTION" -a -n "$DEFAULT" ] && ANSWER_OPTION="$DEFAULT" + [ "$ANSWER_OPTION" == CANCEL ] && ret=1 && ANSWER_OPTION= + [ "$ANSWER_OPTION" == SKIP ] && ret=0 && ANSWER_OPTION= + [ -z "$ANSWER_OPTION" -a "$TYPE" == required ] && ret=1 + + debug 'UI' "cli_ask_option: ANSWER_OPTION: $ANSWER_OPTION, returncode (skip/cancel): $ret ($MENU_TITLE)" + return $ret +} + + +_cli_ask_password () +{ + if [ -n "$1" ] + then + type_l=`tr '[:upper:]' '[:lower:]' <<< $1` + type_u=`tr '[:lower:]' '[:upper:]' <<< $1` + else + type_l= + type_u= + fi + + echo -n "Enter your $type_l password: " + stty -echo + [ -n "$type_u" ] && read ${type_u}_PASSWORD + [ -z "$type_u" ] && read PASSWORD + stty echo + echo +} + + +# $3 -z string behavior: always take default if applicable, but if no default then $3 is the returncode (1 is default) +_cli_ask_string () +{ + exitcode=${3:-1} + echo "$1: " + [ -n "$2" ] && echo "(Press enter for default. Default: $2)" + echo -n ">" + read ANSWER_STRING + debug 'UI' "cli_ask_string: User entered: $ANSWER_STRING" + if [ -z "$ANSWER_STRING" ] + then + if [ -n "$2" ] + then + ANSWER_STRING=$2 + else + return $exitcode + fi + fi + return 0 +} + + +_cli_ask_yesno () +{ + [ -z "$2" ] && echo -n "$1 (y/n): " + [ "$2" = yes ] && echo -n "$1 (Y/n): " + [ "$2" = no ] && echo -n "$1 (y/N): " + + read answer + answer=`tr '[:upper:]' '[:lower:]' <<< $answer` + if [ "$answer" = y -o "$answer" = yes ] || [ -z "$answer" -a "$2" = yes ] + then + debug 'UI' "cli_ask_yesno: User picked YES" + return 0 + else + debug 'UI' "cli_ask_yesno: User picked NO" + return 1 + fi +} + + +_cli_follow_progress () +{ + title=$1 + logfile=$2 + echo "Title: $1" + [ -n "$3" ] && tail -f $2 --pid=$3 + [ -z "$3" ] && tail -f $2 +} -- cgit v1.2.2