parent
d0991b572b
commit
1a9f7bbf1d
600
bashtools.sh
600
bashtools.sh
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@ -1,5 +1,17 @@
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#!/usr/bin/env /bin/bash
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####################################
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# To include this in a script:
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#
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#. ${HOME}/code/bashtools/bashtools.sh
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#if [[ -z $HAVE_BASHTOOLS ]]; then
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# echo "ERROR: bashtools not installed download from https://git.nethack.net/rob/bashtools" >/dev/stderr
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# exit 1
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#fi
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#
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####################################
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export BASHTOOLS_DIR="${HOME}/.bashtools"
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if [[ $1 == "install" ]]; then
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mkdir -p "$BASHTOOLS_DIR"
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@ -213,292 +225,6 @@ function getsysstats() {
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DISKFREE_GB=$(echo "$DISKFREE_MB / 1024" | bc )
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}
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# menu [ -r RETVAR ] [-R NUMRETVAR] [-a] [-c num] [-l v|h ] [-x AB] [ -q "question text" ] [ -d default ] choice1 choice2 ... choiceN [ -D desc1 desc2 ... descN ]
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function menu() {
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local answer answernum autoselect bestval
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local cols choice choiceformat cperrow cwidth default defaultnum desc
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local idx layout mode n nchoices ndescs
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local question retvar retvarnum thislen thisnum thistext
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local x y repfrom repto
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local found
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autoselect=0
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default=""
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question="Select an option:"
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mode="choices"
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layout=v # 'v'ertical or 'h'orizontal
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nchoices=0
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ndescs=0
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cwidth=0
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retvar=_SELECTION
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cperrow=-1
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found=0
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while [ $# -ge 1 ]; do
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case $1 in
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"-a")
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autoselect=1
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;;
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"-c")
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shift
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cperrow="$1"
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;;
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"-d")
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shift
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default="$1"
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;;
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"-l")
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shift
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layout="$1"
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;;
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"-r")
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shift
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retvar="$1"
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;;
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"-R")
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shift
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retvarnum="$1"
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;;
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"-x")
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shift
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repfrom="${1:0:1}"
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repto="${1:1:1}"
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;;
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"-q")
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shift
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question="$1"
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;;
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"-D")
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mode="descriptions"
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;;
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*)
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if [ "$mode" == "choices" ]; then
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choice[${nchoices}]="$1"
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if [[ ! -z $repfrom && ! -z $repto ]]; then
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choice[${nchoices}]=`echo ${choice[$nchoices]} | tr "$repfrom" "$repto"`
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fi
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thislen=${#1}
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if [ $thislen -gt $cwidth ]; then
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cwidth=$thislen
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fi
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nchoices=$((nchoices + 1))
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else
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desc[${ndescs}]="$1"
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# length of this description + length of matching choice
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# + 3 for parantheses
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thislen=$(( ${#1} + ${#choice[$ndescs]} + 3))
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ndescs=$((ndescs + 1))
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if [ $thislen -gt $cwidth ]; then
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cwidth=$thislen
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fi
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fi
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;;
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esac
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shift
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done
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# Validate layout
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if [[ ! $layout =~ v|h ]] ; then
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cecho "$RED" "ERROR in ask(): invalid layout. Must be 'v'ertical or 'h'orizontal. [$question]"
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die
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fi
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# Validate descriptions
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if [ $ndescs -gt $nchoices ]; then
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cecho "$RED" "ERROR in ask(): Number of descriptions ($ndescs) is larger than number of choices ($nchoices)! [$question]"
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die
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fi
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# Validate default choice (if given)
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if [ -n "$default" ]; then
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defaultnum=-1
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for n in ${!choice[@]}; do
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if [ "${choice[$n]}" == "$default" ]; then
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defaultnum=$n
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fi
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done
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if [ $defaultnum -eq -1 ]; then
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cecho "$RED" "ERROR in ask(): given default '$default' does not match any choice. [$question]"
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echo " choices are:"
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for n in ${!choice[@]}; do
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echo " ${choice[$n]}"
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done
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die
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fi
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fi
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# Determine choice width - longest choice + 6 chars
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# to account for 'xxx) '
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cwidth=$((cwidth + 5))
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# Determine maximum amount of choices per row
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if [ $cperrow -eq -1 ]; then
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if [ $nchoices -le 3 ]; then
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cperrow=1
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else
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cols=$(tput cols)
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cperrow=$((cols / cwidth))
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fi
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fi
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# Reduce choices per row to minimise (nchoices % cperrow).
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# ie. try to make list of choices as close to a
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# grid shape as possible.
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#
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bestval=$(( cperrow - (nchoices % cperrow) ))
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n=$((cperrow - 1))
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while [ $n -ge 1 ]; do
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thisval=$(( cperrow - (nchoices % n) ))
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if [ $thisval -lt $bestval ]; then
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bestval=$thisval
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cperrow=$n
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fi
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n=$((n - 1))
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done
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# Determine how many rows we'll need for a
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# vertical layout (ie. counting downwards instead
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# of right).
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if [ "$layout" == "v" ]; then
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choicerows=$((nchoices / cperrow))
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if [ $((nchoices % cperrow)) -gt 0 ]; then
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choicerows=$((choicerows + 1))
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fi
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fi
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# printf format string
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choiceformat="%3s) %-$((cwidth-5))s"
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answer=""
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# Prompt for a choice until we get a valid answer.
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while [ -z "$answer" ]; do
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# Display menu
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echo -e "$question"
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if [ "$layout" == "h" ]; then
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for n in ${!choice[@]}; do
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if [ -n "${desc[$n]}" ]; then
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thistext="${choice[$n]} (${desc[$n]})"
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else
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thistext="${choice[$n]}"
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fi
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thisnum=$((n + 1))
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if [ "${choice[$n]}" == "${default}" ]; then
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thisnum="*$thisnum"
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fi
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printf "$choiceformat" "$thisnum" "${thistext}"
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if [ $(( (n + 1) % $cperrow )) -eq 0 ]; then
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printf "\n" # newline
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fi
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done
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else # ie. vertical
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n=0
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for (( y=1; y<=$choicerows; y++)); do
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for (( x=0; x<$cperrow; x++)); do
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idx=$((n + (x * choicerows)))
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if [ $idx -lt $nchoices ]; then
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if [ -n "${desc[$idx]}" ]; then
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thistext="${choice[$idx]} (${desc[$idx]})"
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else
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thistext="${choice[$idx]}"
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fi
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thisnum=$((idx + 1))
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if [ "${choice[$idx]}" == "${default}" ]; then
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thisnum="*$thisnum"
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fi
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printf "$choiceformat" "$thisnum" "${thistext}"
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fi
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done
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n=$((n + 1))
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printf "\n" # newline
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done
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fi
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printf "\n"
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if [ -n "$default" ]; then
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printf " (* denotes default)\n"
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fi
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printf -- "-> "
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# If there's only one answer, just select it. Useful for
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# cases where we are basing our list of choices on a dynamic variable.
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if [ $autoselect -eq 1 -a $nchoices -eq 1 ]; then
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answernum=1
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echo "1 (autoselect)" # make it look like we typed it
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else
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read answernum
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fi
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if [ -z "$answernum" ]; then
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if [ -n "$default" ]; then
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answer=$default
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info "[defaulting to $answer]"
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# populate 'answernum' correctly
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for z in ${!choice[@]}; do
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if [[ ${choice[$z]} == $answer ]]; then
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answernum=$((z + 1))
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break
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fi
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done
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else
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printf "Invalid response.\n\n"
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fi
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elif [[ ! $answernum =~ ^[0-9]*$ ]] ; then
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# try to match based on name
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found=0
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shopt -s nocasematch
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for z in ${!choice[@]}; do
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if [[ ${choice[$z]} =~ $answernum ]]; then
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possanswernum[$found]=$((z + 1))
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possanswer[$found]=${choice[z]}
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found=$((found + 1))
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fi
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done
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if [[ $found -eq 1 ]]; then
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selectedposs=${possanswer[0]}
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selectedpossnum=${possanswernum[0]}
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answerhilite=${selectedposs/${answernum}/${BOLD}${answernum}${PLAIN}${CYAN}}
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star=""
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if [[ -z $BOLD ]]; then
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star="*"
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fi
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printf "${CYAN}Matched '${star}${answerhilite}${star}'.${PLAIN}\n\n"
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answernum="$selectedpossnum"
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answer="$selectedposs"
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elif [[ $found -gt 1 ]]; then
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printf "${RED}Invalid response - '${BOLD}$answernum${PLAIN}${RED}' matches $found answers.${PLAIN}\n\n"
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for z in ${!possanswer[@]}; do
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echo -e " ${RED}${possanswernum[$z]}) ${possanswer[$z]}"
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done
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echo -e "${PLAIN}"
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else
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printf ${RED}"Invalid response.${PLAIN}\n\n"
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fi
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shopt -u nocasematch
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elif [ $answernum -lt 1 -o $answernum -gt $nchoices ]; then
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printf "Choice out of range.\n\n"
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else
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answer=${choice[$((answernum - 1))]}
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fi
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done
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answer="${answer//\'/\\\'}"
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eval "$retvar=$'$answer'"
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eval "$retvarnum='$answernum'"
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return 0
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}
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function ask() { # [-s == dont echo input] $1 = prompt $default_val $2 = return_variable_name
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local answer prompt default retvar readopts=""
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if [[ $1 == "-s" ]]; then
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@ -514,6 +240,294 @@ function ask() { # [-s == dont echo input] $1 = prompt $default_val $2 = return_
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eval "$retvar=\"$answer\""
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}
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# ask [ -r RETVAR ] [-R NUMRETVAR] [-a] [-c num] [-l v|h ] [-x AB] [ -q "question text" ] [ -d default ] choice1 choice2 ... choiceN [ -D desc1 desc2 ... descN ]
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function menu() {
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local answer answernum autoselect bestval
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local cols choice choiceformat cperrow cwidth default defaultnum desc
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local idx layout mode n nchoices ndescs
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local question retvar retvarnum thislen thisnum thistext
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local x y repfrom repto
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local found
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autoselect=0
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default=""
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question="Select an option:"
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mode="choices"
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layout=v # 'v'ertical or 'h'orizontal
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nchoices=0
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ndescs=0
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cwidth=0
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retvar=_SELECTION
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cperrow=-1
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found=0
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while [ $# -ge 1 ]; do
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case $1 in
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"-a")
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autoselect=1
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;;
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"-c")
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shift
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cperrow="$1"
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;;
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"-d")
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shift
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default="$1"
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;;
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"-l")
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shift
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layout="$1"
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;;
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"-r")
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shift
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retvar="$1"
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;;
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"-R")
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shift
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retvarnum="$1"
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;;
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"-x")
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shift
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repfrom="${1:0:1}"
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repto="${1:1:1}"
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;;
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"-q")
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shift
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question="$1"
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;;
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"-D")
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mode="descriptions"
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;;
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*)
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if [ "$mode" == "choices" ]; then
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choice[${nchoices}]="$1"
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if [[ ! -z $repfrom && ! -z $repto ]]; then
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choice[${nchoices}]=`echo ${choice[$nchoices]} | tr "$repfrom" "$repto"`
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fi
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thislen=${#1}
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if [ $thislen -gt $cwidth ]; then
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cwidth=$thislen
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fi
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nchoices=$((nchoices + 1))
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else
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desc[${ndescs}]="$1"
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# length of this description + length of matching choice
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# + 3 for parantheses
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thislen=$(( ${#1} + ${#choice[$ndescs]} + 3))
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ndescs=$((ndescs + 1))
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if [ $thislen -gt $cwidth ]; then
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cwidth=$thislen
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fi
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fi
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;;
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esac
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shift
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done
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# Validate layout
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if [[ ! $layout =~ v|h ]] ; then
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error "error in myask(): invalid layout. Must be 'v'ertical or 'h'orizontal. [$question]"
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die
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fi
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# Validate descriptions
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if [ $ndescs -gt $nchoices ]; then
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error "error in myask(): Number of descriptions ($ndescs) is larger than number of choices ($nchoices)! [$question]"
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die
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fi
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# Validate default choice (if given)
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if [ -n "$default" ]; then
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defaultnum=-1
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for n in ${!choice[@]}; do
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if [ "${choice[$n]}" == "$default" ]; then
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defaultnum=$n
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fi
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done
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if [ $defaultnum -eq -1 ]; then
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error "error in myask(): given default '$default' does not match any choice. [$question]"
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csecho "$RED" " choices are:"
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for n in ${!choice[@]}; do
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csecho "$RED" " ${choice[$n]}"
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done
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die
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fi
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fi
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# Determine choice width - longest choice + 6 chars
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# to account for 'xxx) '
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cwidth=$((cwidth + 5))
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# Determine maximum amount of choices per row
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if [ $cperrow -eq -1 ]; then
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if [ $nchoices -le 3 ]; then
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cperrow=1
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else
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cols=$(tput cols)
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cperrow=$((cols / cwidth))
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fi
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fi
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# Reduce choices per row to minimise (nchoices % cperrow).
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# ie. try to make list of choices as close to a
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# grid shape as possible.
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#
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bestval=$(( cperrow - (nchoices % cperrow) ))
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n=$((cperrow - 1))
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while [ $n -ge 1 ]; do
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thisval=$(( cperrow - (nchoices % n) ))
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if [ $thisval -lt $bestval ]; then
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bestval=$thisval
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cperrow=$n
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fi
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n=$((n - 1))
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done
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# Determine how many rows we'll need for a
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# vertical layout (ie. counting downwards instead
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# of right).
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if [ "$layout" == "v" ]; then
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choicerows=$((nchoices / cperrow))
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if [ $((nchoices % cperrow)) -gt 0 ]; then
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choicerows=$((choicerows + 1))
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fi
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fi
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# printf format string
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choiceformat="${GREEN}${BOLD}%3s${PLAIN}${GREEN}) %-$((cwidth-5))s$PLAIN"
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answer=""
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# Prompt for a choice until we get a valid answer.
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while [ -z "$answer" ]; do
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# Display menu
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csecho "$GREEN" "^b$question^p"
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if [ "$layout" == "h" ]; then
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for n in ${!choice[@]}; do
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if [ -n "${desc[$n]}" ]; then
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thistext="${choice[$n]} (${desc[$n]})"
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else
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thistext="${choice[$n]}"
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fi
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thisnum=$((n + 1))
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if [ "${choice[$n]}" == "${default}" ]; then
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thisnum="*$thisnum"
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fi
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printf "$choiceformat" "$thisnum" "${thistext}"
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if [ $(( (n + 1) % $cperrow )) -eq 0 ]; then
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printf "\n" # newline
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fi
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done
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else # ie. vertical
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n=0
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for (( y=1; y<=$choicerows; y++)); do
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for (( x=0; x<$cperrow; x++)); do
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idx=$((n + (x * choicerows)))
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if [ $idx -lt $nchoices ]; then
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|
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if [ -n "${desc[$idx]}" ]; then
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thistext="${choice[$idx]} (${desc[$idx]})"
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else
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thistext="${choice[$idx]}"
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fi
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thisnum=$((idx + 1))
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if [ "${choice[$idx]}" == "${default}" ]; then
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thisnum="*$thisnum"
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fi
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||||
printf "$choiceformat" "$thisnum" "${thistext}"
|
||||
fi
|
||||
done
|
||||
n=$((n + 1))
|
||||
printf "\n" # newline
|
||||
done
|
||||
fi
|
||||
|
||||
printf "\n"
|
||||
if [ -n "$default" ]; then
|
||||
csecho "$GREEN" " ^i(* denotes default)^p"
|
||||
fi
|
||||
csecho -n "$GREEN" "^b-> ^p"
|
||||
|
||||
# If there's only one answer, just select it. Useful for
|
||||
# cases where we are basing our list of choices on a dynamic variable.
|
||||
if [ $autoselect -eq 1 -a $nchoices -eq 1 ]; then
|
||||
answernum=1
|
||||
csecho "$GREEN" "1 (autoselect)" # make it look like we typed it
|
||||
else
|
||||
echo -e -n "$GREEN"
|
||||
read answernum
|
||||
echo -e -n "$PLAIN"
|
||||
fi
|
||||
|
||||
if [ -z "$answernum" ]; then
|
||||
if [ -n "$default" ]; then
|
||||
answer=$default
|
||||
info "[defaulting to $answer]"
|
||||
|
||||
# populate 'answernum' correctly
|
||||
for z in ${!choice[@]}; do
|
||||
if [[ ${choice[$z]} == $answer ]]; then
|
||||
answernum=$((z + 1))
|
||||
break
|
||||
fi
|
||||
done
|
||||
|
||||
else
|
||||
csecho "$RED" "Invalid response.\n"
|
||||
fi
|
||||
elif [[ ! $answernum =~ ^[0-9]*$ ]] ; then
|
||||
# try to match based on name
|
||||
found=0
|
||||
shopt -s nocasematch
|
||||
for z in ${!choice[@]}; do
|
||||
if [[ ${choice[$z]} =~ $answernum ]]; then
|
||||
possanswernum[$found]=$((z + 1))
|
||||
possanswer[$found]=${choice[z]}
|
||||
found=$((found + 1))
|
||||
fi
|
||||
done
|
||||
if [[ $found -eq 1 ]]; then
|
||||
selectedposs=${possanswer[0]}
|
||||
selectedpossnum=${possanswernum[0]}
|
||||
answerhilite=${selectedposs/${answernum}/^b${answernum}^p}
|
||||
star=""
|
||||
if [[ -z $BOLD ]]; then
|
||||
star="*"
|
||||
fi
|
||||
csecho "$CYAN" "Matched '${star}${answerhilite}${star}'.\n"
|
||||
answernum="$selectedpossnum"
|
||||
answer="$selectedposs"
|
||||
elif [[ $found -gt 1 ]]; then
|
||||
csecho "${RED}" "Invalid response - '^b$answernum^p' matches $found answers.\n"
|
||||
for z in ${!possanswer[@]}; do
|
||||
csecho "$RED" " ${possanswernum[$z]}) ${possanswer[$z]}"
|
||||
done
|
||||
else
|
||||
csecho "${RED}" "Invalid response.\n"
|
||||
fi
|
||||
shopt -u nocasematch
|
||||
elif [ $answernum -lt 1 -o $answernum -gt $nchoices ]; then
|
||||
csecho "$RED" "Choice out of range.\n"
|
||||
else
|
||||
answer=${choice[$((answernum - 1))]}
|
||||
fi
|
||||
done
|
||||
|
||||
answer="${answer//\'/\\\'}"
|
||||
eval "$retvar=$'$answer'"
|
||||
eval "$retvarnum='$answernum'"
|
||||
return 0
|
||||
}
|
||||
|
||||
function checkreqs() { # appname cpus ram_in_gb disk_in_gb
|
||||
local rv=0 appname errs x
|
||||
appname="$1"
|
||||
|
|
@ -599,6 +613,20 @@ function dnslookup() { # $1 = a_record_to_look_up
|
|||
return $rv
|
||||
}
|
||||
|
||||
function profile() {
|
||||
local now str diff
|
||||
[[ -z $__PROFILE || $__PROFILE -ne 1 ]] && return;
|
||||
#now=$(date +%Y/%m/%d-%H:%M:%S)
|
||||
now=$(printf "%0.f" "$(bc <<<"$(gdate +"%s.%N")*1000")")
|
||||
str="^b${FUNCNAME[1]}()^p ===> ^b$*^p"
|
||||
if [[ -n $__PROF_PREV ]]; then
|
||||
diff=$(echo "scale=2; ($now - $__PROF_PREV)" | bc)
|
||||
str="$str $GREEN($BOLD+$diff ms$PLAIN$GREEN)^p"
|
||||
fi
|
||||
cecho -s "${MAGENTA}" "$str" >&2
|
||||
__PROF_PREV=$now
|
||||
}
|
||||
|
||||
#declare -fx $(bash -c "source $0 &> /dev/null; compgen -A function")
|
||||
declare -fx $(compgen -A function | grep -v ^_)
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue