mkgo

mkgo

# mkgo: A handy shell function to create directories and cd/popd to them
# immediately, supports optional permissions and owner adjustments.
#
# Usage: mkgo [-p] [-m mode] [-o owner] [-s] [-f] directory
# See --help for more details.
#
# (source this or pop it in your profile)

mkgo() {
    VERSION="mkgo 2.0.0"

    usage() {
        echo "Usage: mkgo [-p] [-m mode] [-o owner] [-f] [-s] directory"
        echo
        echo "Options:"
        echo "  -p            Create intermediate directories as necessary."
        echo "  -m mode       Set file mode (as in chmod)."
        echo "  -o owner      Change file owner (as in chown)."
        echo "  -f            Force mode and owner change if directory already exists."
        if command -v pushd > /dev/null 2>&1; then
            echo "  -s            Push directory to stack (like pushd)."
        fi
        echo "  --help        Display this help message."
        echo "  --version     Display version information."
        return
    }

    P_FLAG=0
    FORCE_FLAG=0
    STACK_FLAG=0
    MODE=""
    OWNER=""
    DIR=""

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

        case "$key" in
            -p)
                P_FLAG=1
                shift
                ;;
            -m)
                MODE="$2"
                shift
                shift
                ;;
            -o)
                OWNER="$2"
                shift
                shift
                ;;
            -f)
                FORCE_FLAG=1
                shift
                ;;
            -s)
                if command -v pushd > /dev/null 2>&1; then
                    STACK_FLAG=1
                else
                    echo "Warning: pushd not available on this system. Ignoring -s flag."
                fi
                shift
                ;;
            --help)
                usage
                return
                ;;
            --version)
                echo "$VERSION"
                return
                ;;
            *)
                DIR="$1"
                shift
                ;;
        esac
    done

    if [ -z "$DIR" ]; then
        echo "Error: No directory provided."
        usage
        return
    fi

    if [ -d "$DIR" ]; then
        if [ $FORCE_FLAG -eq 0 ]; then
            echo "Directory '$DIR' already exists. Use -f to force mode and owner changes."
            return
        else
            echo "Directory '$DIR' already exists. Changing mode and owner as specified."
        fi
    elif [ $P_FLAG -eq 1 ]; then
        mkdir -p "$DIR" 2>/dev/null
    else
        mkdir "$DIR" 2>/dev/null
    fi

    # Check if mkdir was successful
    if [ $? -ne 0 ]; then
        echo "Error: Failed to create '$DIR'. Ensure parent directories exist or use the -p option."
        return
    fi

    if [ -n "$MODE" ]; then
        chmod "$MODE" "$DIR"
    fi

    if [ -n "$OWNER" ]; then
        chown "$OWNER" "$DIR"
    fi

    if [ $STACK_FLAG -eq 1 ]; then
        pushd "$DIR" > /dev/null
    else
        cd "$DIR"
    fi
}

FROM alpine
ADD https://gist.githubusercontent.com/udkyo/babe725bb4c9c6b158d3641ba0f94159/raw/b1c132409481c948e7cb219cbc7423503a250499/mkgo /etc/profile.d/mkgo.sh
RUN chmod a+x /etc/profile.d/mkgo.sh
SHELL ["/bin/sh", "-l", "-c"]

RUN set -x \
    && mkgo /foo/bar/bam/baz/code -p -m 0700 -o 1234:5678 -s