imapcli

#!/bin/bash


HELP_MESSAGE="Imap-CLI.

Usage: imapcli [options] <command> [<command_options>...]

Available commands are:
    status      List unseen, recent and total number of mail per directory in IMAP account
    list        List mail within a specified directory
    search      Search for mail
    read        Display Header and Body of specified mail(s)
    flag        Set or unset flag on specified mail(s)
    copy        Copy (or move) mail from one mailbox to another
    delete      Remove mails (or move to Trash mailbox by default)


Options:
    -h, --help              Show help options
    --version               Print program version

See 'imapcli help <command>' to get further information about specified command"

VERSION_MESSAGE="
imap-cli 0.7
Copyright (C) 2014 Romain Soufflet
License MIT
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law."


while [[ $# -gt 0 ]]; do
    key="$1"
    shift

    case $key in
        status|list|search|read|flag|copy|delete|help)
            COMMAND="${key}"
            break
            ;;
        -h|--help)
            HELP="true"
            shift
            ;;
        --version)
            VERSION="true"
            shift
            ;;
        *)
            echo "${HELP_MESSAGE}"
            exit 1
            ;;
    esac
done

[ "${HELP}" = "true" ] && echo "${HELP_MESSAGE}" && exit 0
[ "${VERSION}" = "true" ] && echo "${VERSION_MESSAGE}" && exit 0

if [ "${COMMAND}" = "help" ]; then
    imap-cli-${1} --help
    exit $?
fi


COMMAND="imap-cli-${COMMAND}"
${COMMAND} "$@"

exit $?