From 545206f93686934998f2f6e74b8d2380f5e2477d Mon Sep 17 00:00:00 2001
From: figsoda <figsoda@pm.me>
Date: Thu, 25 May 2023 16:29:01 -0400
Subject: fetchCrate: allow overriding `registryDl`

This will allow `rustPlatform.importCargoLock` to use `fetchCrate`
directly instead of including its own implementation.
---
 pkgs/build-support/rust/fetchcrate.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'pkgs/build-support/rust')

diff --git a/pkgs/build-support/rust/fetchcrate.nix b/pkgs/build-support/rust/fetchcrate.nix
index 09f5e7805e16..5a896c39c006 100644
--- a/pkgs/build-support/rust/fetchcrate.nix
+++ b/pkgs/build-support/rust/fetchcrate.nix
@@ -2,6 +2,9 @@
 
 { crateName ? args.pname
 , pname ? null
+  # The `dl` field of the registry's index configuration
+  # https://doc.rust-lang.org/cargo/reference/registry-index.html#index-configuration
+, registryDl ? "https://crates.io/api/v1/crates"
 , version
 , unpack ? true
 , ...
@@ -11,7 +14,7 @@ assert pname == null || pname == crateName;
 
 (if unpack then fetchzip else fetchurl) ({
   name = "${crateName}-${version}.tar.gz";
-  url = "https://crates.io/api/v1/crates/${crateName}/${version}/download";
+  url = "${registryDl}/${crateName}/${version}/download";
 } // lib.optionalAttrs unpack {
   extension = "tar.gz";
 } // removeAttrs args [ "crateName" "pname" "version" "unpack" ])
-- 
cgit 1.4.1