On Wed, Jun 17, 2020 at 04:31:20PM +0200, Bastian Krause wrote:
> Read a variable from user input, limited to a set of options.
>
> Example:
>
> $ ptxd_template_read_options "select your option" TYPE "option A" "option
> B" "option C"
> ptxdist: select option by number:
> ptxdist: [1] option A
> ptxdist: [2] option B
> ptxdist: [3] option C
> ptxdist: select your option................: 2
> $ echo $TYPE
> option B
>
> The user can select 1, 2 or 3. Other input is not accepted.
>
> Signed-off-by: Bastian Krause <[email protected]>
> ---
> Introduced in v3. Used to ask user about HSM type in a later commit.
> ---
> scripts/lib/ptxd_lib_template.sh | 26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
> diff --git a/scripts/lib/ptxd_lib_template.sh
> b/scripts/lib/ptxd_lib_template.sh
> index f39e6e033..6b405763b 100644
> --- a/scripts/lib/ptxd_lib_template.sh
> +++ b/scripts/lib/ptxd_lib_template.sh
> @@ -30,6 +30,32 @@ ptxd_template_read() {
> export "${2}"
> }
> export -f ptxd_template_read
> +#
> +# Read a variable from user input, limited to an array of options
> +#
> +# $1 prompt prefix
> +# $2 variable name
> +# $3..$n options
> +#
> +ptxd_template_read_options() {
> + local -a options=("${@:3}")
> + local i=1
> + echo "${PTXDIST_LOG_PROMPT}select option by number:"
> + for option in "${options[@]}"; do
> + echo "${PTXDIST_LOG_PROMPT}[${i}] ${option}"
> + ((i++))
> + done
> + while : ; do
> + ptxd_template_read "${1}" chosen
> + [ -n "${chosen}" ] && [ "${chosen}" -gt 0 ] &&
> + [ "${chosen}" -le "${#options[@]}" ] &&
> + break
> +
> + echo "${PTXDIST_LOG_PROMPT}invalid option"
> + done
> + export "${2}=${options[$chosen-1]}"
Wrong indention. I'll fix it when I apply this.
Michael
> +}
> +export -f ptxd_template_read_options
>
> ptxd_template_read_name() {
> ptxd_template_read "enter package name" package_name
> --
> 2.27.0
>
>
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