my_init.sh

#!/bin/bash

export ENHANCD_ROOT
export ENHANCD_COMMAND
export ENHANCD_FILTER
export ENHANCD_DIR="${ENHANCD_DIR:-$HOME/.enhancd}"
export ENHANCD_DISABLE_DOT="${ENHANCD_DISABLE_DOT:-0}"
export ENHANCD_DISABLE_HYPHEN="${ENHANCD_DISABLE_HYPHEN:-0}"
export ENHANCD_DISABLE_HOME="${ENHANCD_DISABLE_HOME:-0}"
export ENHANCD_DOT_ARG="${ENHANCD_DOT_ARG:-..}"
export ENHANCD_HYPHEN_ARG="${ENHANCD_HYPHEN_ARG:--}"
export ENHANCD_HYPHEN_NUM="${ENHANCD_HYPHEN_NUM:-10}"
export ENHANCD_HOME_ARG="${ENHANCD_HOME_ARG:-}"
export ENHANCD_USE_FUZZY_MATCH="${ENHANCD_USE_FUZZY_MATCH:-1}"
export ENHANCD_COMPLETION_DEFAULT
export ENHANCD_COMPLETION_KEYBIND="${ENHANCD_COMPLETION_KEYBIND:-^I}"
export ENHANCD_COMPLETION_BEHAVIOR="${ENHANCD_COMPLETION_BEHAVIOR:-default}"

export _ENHANCD_VERSION="2.2.4"
_ENHANCD_SUCCESS=0
_ENHANCD_FAILURE=60

if [[ -n $BASH_VERSION ]]; then
    # BASH
    ENHANCD_ROOT="$(builtin cd "$(command dirname "$BASH_SOURCE")" && pwd)"
    nowshell=bash
elif [[ -n $ZSH_VERSION ]]; then
    # ZSH
    ENHANCD_ROOT="${${(%):-%x}:A:h}"
    compdef _cd __enhancd::cd
    nowshell=zsh
else
    return 1
fi

__enhancd::init::init()
{
    local src

    # core files
    for src in "$ENHANCD_ROOT/src"/*.sh
    do
        source "$src"
    done

    # custom sources
    if [[ -d "$ENHANCD_DIR/sources" ]]; then
        for src in $(command find "$ENHANCD_DIR/sources" -name "*.sh")
        do
            source "$src"
        done
    fi

    if [[ $nowshell == *zsh* ]]; then
        for src in "$ENHANCD_ROOT/src"/*.zsh
        do
            source "$src"
        done
    fi

    # make a log file and a root directory
    if [[ ! -d "$ENHANCD_DIR" ]]; then
      mkdir -p "$ENHANCD_DIR"
    fi
    if [[ ! -f "$ENHANCD_DIR/enhancd.log" ]]; then
      touch "$ENHANCD_DIR/enhancd.log"
    fi

    # alias to cd
    eval "alias ${ENHANCD_COMMAND:=cd}=__enhancd::cd"

    # Set the filter if empty
    if [[ -z $ENHANCD_FILTER ]]; then
        ENHANCD_FILTER="fzy:fzf-tmux:fzf:peco:percol:gof:pick:icepick:sentaku:selecta"
    fi
}

__enhancd::init::init