0-completion

#!/usr/bin/env bash

tutorial_directory=${BASH_SOURCE[0]%/*}

# This script creates a custom (volatile) bashrc that will basically
# just enable programmable completion for other tutorial scripts and
# invoke an interactive shell
read -N 4096 bashrc <<EOF
. /etc/profile
shopt -s progcomp sourcepath
PATH="$PATH:$tutorial_directory"
. "$tutorial_directory/../argsparse-completion.sh"
complete -F _argsparse_complete \
	1-basics 2-values 3-cumulative-options \
	4-types 5-custom-types 6-properties \
	7-value-checking 8-setting-hook 9-misc

cd "$tutorial_directory" || exit

printf "You are currently in %s directory and completion is enabled.\\\\n" \
	"$tutorial_directory"
printf "Try:\\\n\\\\n./1-basics -<tab><tab>\\\\n\\\\n"
EOF
exec bash --rcfile <(printf %s "$bashrc") -i

cat <<EOF

As you can see, the Bash Argsparse Completion module can automatically
enable the bash completion for the scripts you develop with the Bash
Argsparse library.

To enable completion for your own scripts, please ensure
bash_completion is enabled, and then in your ~/.bashrc, add lines such
as:

    . argsparse-completion.sh
    complete -F _argsparse_complete yourscript your_other_script

EOF