memo

#!/bin/bash
#
# rotsix - (c) wtfpl 2017
# memo manager using git


# custom variables
memo_dir="$HOME/memo"
#


usage () {
    echo "$0"
    echo -e "usage:"
    echo -e "\t$(basename "$0") list|show|l|s|ls\t\tsimple \`tree \$memo_dir\`"
    echo -e "\t$(basename "$0") add|a <item>\t\tcreate the selected item (and directories if needed)"
    echo -e "\t$(basename "$0") edit|e <item>\t\tedit the selected item"
    echo -e "\t$(basename "$0") delete|d <item|dir>\tdelete the selected item (directory requires -r option)"
    echo -e "\t$(basename "$0") git|g <git-command>\tuses git directly, so uses ~/.gitconfig"
    echo -e "\t$(basename "$0") help|h|?\t\t\tdisplay this message"
}

die () {
    echo "$@" >&2
    exit 1
}

case "$1" in
    "list"|"show"|"l"|"s"|"ls")
        tree "$memo_dir" || exit 1
        exit 0
        ;;
    "add"|"a")
        shift
        mkdir -p "$(dirname "$*")"
        if [[ -n "$EDITOR" ]]; then
            "$EDITOR" "$memo_dir/$*" || exit 1
        else
            die "Set $EDITOR first please, or use \`EDITOR=<editor> memo ...\`"
        fi

        git -C "$memo_dir" add "$@"
        git -C "$memo_dir" commit -m "Adding $*"
        git -C "$memo_dir" push
        ;;
    "edit"|"e")
        shift
        mkdir -p "$(dirname "$*")"
        if [[ -n "$EDITOR" ]]; then
            "$EDITOR" "$memo_dir/$*" || exit 1
        else
            die "Set \$EDITOR first please, or use \`EDITOR=<editor> memo ...\`"
        fi

        git -C "$memo_dir" add "$@"
        git -C "$memo_dir" commit -m "Editing $*"
        git -C "$memo_dir" push
        ;;
    "delete"|"d")
        shift

        __type="f"
        while getopts "rf" opt; do
            case "$opt" in
                "r")
                    __type="d"
                    shift
                    ;;
                *)
                    echo "Invalid option: -$OPTARG" >&2
                    echo "Considering it is a file and not a directory."
                    ;;
            esac
        done

        test "$(dirname "$*")" == "." && __dir="" || __dir="$(dirname "$*")"

        find "$memo_dir/$__dir" --type "$__type" -name "$(basename "$*")" -delete || exit 1

        if [[ "$__type" == "f" ]]; then
            git -C "$memo_dir" add "$@"
            git -C "$memo_dir" commit -m "Deleting $*"
            git -C "$memo_dir" push
        fi
        ;;
    "git"|"g")
        shift
        git -C "$memo_dir" "$@" || exit 1
        ;;
    "help"|"h"|"?"|"")
        usage
        exit 0;;
    *)
        usage
        exit 1
        ;;
esac