utils.ex
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utils.ex
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	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.Utils do
	def compile_dir(dir) when is_binary(dir) do
	dir
	\|> File.ls!()
	\|> Enum.map(&Path.join(dir, &1))
	\|> Kernel.ParallelCompiler.compile()
	end

	@doc """
	POSIX-compliant check if command is available in the system

	## Examples
	iex> command_available?("git")
	true
	iex> command_available?("wrongcmd")
	false

	"""
	@spec command_available?(String.t()) :: boolean()
	def command_available?(command) do
	match?({_output, 0}, System.cmd("sh", ["-c", "command -v #{command}"]))
	end
	end