From abf983528f4f80ffb48fc517cf1cff523ab1ad34 Mon Sep 17 00:00:00 2001
From: Liam <byteslice@airmail.cc>
Date: Sat, 1 Jun 2024 23:09:06 -0400
Subject: [PATCH] Fix post-Elixir 1.16 divergence in File.stream!
---
lib/philomena/sha512.ex | 22 +++++++++++++++++++---
1 file changed, 19 insertions(+), 3 deletions(-)
diff --git a/lib/philomena/sha512.ex b/lib/philomena/sha512.ex
index 1b500440..03c9645e 100644
--- a/lib/philomena/sha512.ex
+++ b/lib/philomena/sha512.ex
@@ -1,11 +1,27 @@
defmodule Philomena.Sha512 do
- @spec file(String.t()) :: String.t()
- def file(file) do
+ @chunk_size 10_485_760
+
+ @spec file(Path.t()) :: String.t()
+ def file(path) do
hash_ref = :crypto.hash_init(:sha512)
- File.stream!(file, [], 10_485_760)
+ path
+ |> stream_file()
|> Enum.reduce(hash_ref, &:crypto.hash_update(&2, &1))
|> :crypto.hash_final()
|> Base.encode16(case: :lower)
end
+
+ if Version.match?(System.version(), ">= 1.16.0") do
+ # `stream!/2` was added in Elixir 1.16 to accept a shortened form,
+ # where we only need to specify the size of each stream chunk
+ defp stream_file(file) do
+ File.stream!(file, @chunk_size)
+ end
+ else
+ # Use legacy stream/3 for older Elixir versions
+ defp stream_file(file) do
+ File.stream!(file, [], @chunk_size)
+ end
+ end
end