erlang-root-dir

#!/bin/sh
# SH FILE: erlang-root-dir
#
# Purpose   : Print the Erlang root directory path. No trailing slash, no newline.
# Created   : Thursday, October 14 2021.
# Author    : Pierre Rouleau <prouleau001@gmail.com>
# Time-stamp: <2021-10-15 21:38:12, updated by Pierre Rouleau>
# Copyright © 2021, Pierre Rouleau
# ----------------------------------------------------------------------------
# Description
# -----------
#
# Purpose: Called from within Emacs to identify the Erlang Root Directory.
#
# Usage: erlang-root-dir
#
#  This uses an inline Erlang statement passed to the Erlang interpreter.

# ----------------------------------------------------------------------------
# Script
# ------
#
# Note: the `-sasl errlog_type error` prevents printing PROGRESS REPORT
#       on some versions of Erlang.
#
erl -sasl errlog_type error -eval 'io:format("~ts", [code:root_dir()]),  halt().' -noshell

# ----------------------------------------------------------------------------