64 lines
1.9 KiB
Elixir
64 lines
1.9 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Utils do
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@posix_error_codes ~w(
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eacces eagain ebadf ebadmsg ebusy edeadlk edeadlock edquot eexist efault
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efbig eftype eintr einval eio eisdir eloop emfile emlink emultihop
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enametoolong enfile enobufs enodev enolck enolink enoent enomem enospc
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enosr enostr enosys enotblk enotdir enotsup enxio eopnotsupp eoverflow
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eperm epipe erange erofs espipe esrch estale etxtbsy exdev
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)a
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def compile_dir(dir) when is_binary(dir) do
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dir
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|> File.ls!()
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|> Enum.map(&Path.join(dir, &1))
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|> Kernel.ParallelCompiler.compile()
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end
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@doc """
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POSIX-compliant check if command is available in the system
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## Examples
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iex> command_available?("git")
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true
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iex> command_available?("wrongcmd")
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false
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"""
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@spec command_available?(String.t()) :: boolean()
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def command_available?(command) do
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match?({_output, 0}, System.cmd("sh", ["-c", "command -v #{command}"]))
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end
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@doc "creates the uniq temporary directory"
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@spec tmp_dir(String.t()) :: {:ok, String.t()} | {:error, :file.posix()}
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def tmp_dir(prefix \\ "") do
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sub_dir =
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[
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prefix,
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Timex.to_unix(Timex.now()),
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:os.getpid(),
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String.downcase(Integer.to_string(:rand.uniform(0x100000000), 36))
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]
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|> Enum.join("-")
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tmp_dir = Path.join(System.tmp_dir!(), sub_dir)
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case File.mkdir(tmp_dir) do
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:ok -> {:ok, tmp_dir}
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error -> error
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end
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end
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@spec posix_error_message(atom()) :: binary()
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def posix_error_message(code) when code in @posix_error_codes do
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error_message = Gettext.dgettext(Pleroma.Web.Gettext, "posix_errors", "#{code}")
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"(POSIX error: #{error_message})"
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end
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def posix_error_message(_), do: ""
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end
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