1 files changed, 21 insertions, 2 deletions
diff --git a/lib/pleroma/utils.ex b/lib/pleroma/utils.ex
index e95766223..bc0c95332 100644
--- a/lib/pleroma/utils.ex
+++ b/lib/pleroma/utils.ex
@@ -1,8 +1,16 @@
 # Pleroma: A lightweight social networking server
-# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Utils do
+  @posix_error_codes ~w(
+    eacces eagain ebadf ebadmsg ebusy edeadlk edeadlock edquot eexist efault
+    efbig eftype eintr einval eio eisdir eloop emfile emlink emultihop
+    enametoolong enfile enobufs enodev enolck enolink enoent enomem enospc
+    enosr enostr enosys enotblk enotdir enotsup enxio eopnotsupp eoverflow
+    eperm epipe erange erofs espipe esrch estale etxtbsy exdev
+  )a
+
   def compile_dir(dir) when is_binary(dir) do
     dir
     |> File.ls!()
@@ -22,7 +30,10 @@ defmodule Pleroma.Utils do
   """
   @spec command_available?(String.t()) :: boolean()
   def command_available?(command) do
-    match?({_output, 0}, System.cmd("sh", ["-c", "command -v #{command}"]))
+    case :os.find_executable(String.to_charlist(command)) do
+      false -> false
+      _ -> true
+    end
   end
 
   @doc "creates the uniq temporary directory"
@@ -44,4 +55,12 @@ defmodule Pleroma.Utils do
       error -> error
     end
   end
+
+  @spec posix_error_message(atom()) :: binary()
+  def posix_error_message(code) when code in @posix_error_codes do
+    error_message = Gettext.dgettext(Pleroma.Web.Gettext, "posix_errors", "#{code}")
+    "(POSIX error: #{error_message})"
+  end
+
+  def posix_error_message(_), do: ""
 end