From d92396039df6cf4c609cf1be47d0802496560e17 Mon Sep 17 00:00:00 2001
From: Daniël de Kok <me@danieldk.eu>
Date: Mon, 15 Feb 2021 07:06:31 +0100
Subject: buildRustPackage: add cargoDepsName attribute

The directory in the tarball of vendored dependencies contains `name`,
which is by default set to `${pname}-${version}`. This adds an
additional attribute to permit setting the name to something of the
user's choosing.

Since `cargoSha256`/`cargoHash` depend on the name of the directory of
vendored dependencies, `cargoDepsName` can be used to e.g. make the
hash invariant to the package version by setting `cargoDepsName =
pname`.
---
 pkgs/build-support/rust/default.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

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

diff --git a/pkgs/build-support/rust/default.nix b/pkgs/build-support/rust/default.nix
index dc86a7dc581..4213598b8a3 100644
--- a/pkgs/build-support/rust/default.nix
+++ b/pkgs/build-support/rust/default.nix
@@ -23,6 +23,9 @@
   # Legacy hash
 , cargoSha256 ? ""
 
+  # Name for the vendored dependencies tarball
+, cargoDepsName ? name
+
 , src ? null
 , srcs ? null
 , unpackPhase ? null
@@ -60,7 +63,8 @@ let
 
   cargoDeps = if cargoVendorDir == null
     then fetchCargoTarball ({
-        inherit name src srcs sourceRoot unpackPhase cargoUpdateHook;
+        inherit src srcs sourceRoot unpackPhase cargoUpdateHook;
+        name = cargoDepsName;
         hash = cargoHash;
         patches = cargoPatches;
         sha256 = cargoSha256;
-- 
cgit 1.4.1