bashrc

#!/bin/bash

if type -p readlink >/dev/null; then
  alias abspath='readlink -f'
else
  abspath() {
    _CWD=$(pwd)
    if [ -d "$1" ]; then
      \cd $1
      echo $(pwd -P)/
    elif [ -f "$1" ]; then
      case $1 in
        */*) \cd ${1%/*};;
      esac
      echo $(pwd -P)/${1##*/}
    else
      echo $1
    fi
    \cd $_CWD
  }
fi

# append_path ORIGINAL_PATH ADD_DIR1 ADD_DIR2 ...
append_path() {
  path=$1
  shift
  for p in "$@"; do
    [ -d $p ] || continue
    case $path in
      *:${p}:*|*:${p}|${p}:*) ;;
      *) path=$path:$p ;;
    esac
  done
  path=${path#:}
  echo $path
}

_get_kamipo_bin() {
  bashrc_path=$(abspath ${BASH_SOURCE[0]})
  bashrc_dir=${bashrc_path%/*}
  bin_dir=$(abspath "${bashrc_dir}/../bin")
  echo $bin_dir
}

_add_kamipo_path() {
  local _bin_path=$(_get_kamipo_bin)
  append_path "$PATH" $_bin_path
}
export PATH=$(_add_kamipo_path)