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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
@doc "creates the uniq temporary directory"
@spec tmp_dir(String.t()) :: {:ok, String.t()} | {:error, :file.posix()}
def tmp_dir(prefix \\ "") do
sub_dir =
[
prefix,
Timex.to_unix(Timex.now()),
:os.getpid(),
String.downcase(Integer.to_string(:rand.uniform(0x100000000), 36))
]
|> Enum.join("-")
tmp_dir = Path.join(System.tmp_dir!(), sub_dir)
case File.mkdir(tmp_dir) do
:ok -> {:ok, tmp_dir}
error -> error
end
end
end
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