X-Git-Url: https://git.squeep.com/?a=blobdiff_plain;ds=inline;f=lib%2Fpleroma%2Futils.ex;h=e95766223d86e9965fbcfdc9f5595e98a5505461;hb=b6eb7997f577c5821f21eb00f623631db2faad0b;hp=8d36a0001fa5e8ab5e50fef0d32b85ce8f131bf9;hpb=6cc5341d26426f98a53a6e46787f1457f974f321;p=akkoma
diff --git a/lib/pleroma/utils.ex b/lib/pleroma/utils.ex
index 8d36a0001..e95766223 100644
--- a/lib/pleroma/utils.ex
+++ b/lib/pleroma/utils.ex
@@ -1,5 +1,5 @@
# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors
+# Copyright © 2017-2020 Pleroma Authors
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Utils do
@@ -9,4 +9,39 @@ defmodule Pleroma.Utils do
|> 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