From 43612e8e1abc4ea473b5e10efc10500c865d99e3 Mon Sep 17 00:00:00 2001
From: Maximilian Bosch <maximilian@mbosch.me>
Date: Sat, 29 Aug 2020 12:29:48 +0200
Subject: [PATCH] eva: fix build

Since b52808f1ad485da9e6202ed840140e434ede3c00 `cargo` respects the
`$NIX_BUILD_CORES` variable by utilizing `--test-threads`. However, the
`eva` package also parsed the arguments during the test-phase which
caused a failure since `--test-threads` isn't expected by eva's
argparser[1].

Ths fix is in a pending PR[2] that can be applied on top to fix the
build.

[1] https://hydra.nixos.org/build/126069084
[2] https://github.com/NerdyPepper/eva/pull/37
---
 pkgs/tools/misc/eva/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/tools/misc/eva/default.nix b/pkgs/tools/misc/eva/default.nix
index 06b7b0a5200f..e59c2387a3ce 100644
--- a/pkgs/tools/misc/eva/default.nix
+++ b/pkgs/tools/misc/eva/default.nix
@@ -21,6 +21,12 @@ rustPlatform.buildRustPackage rec {
       url = "https://github.com/NerdyPepper/eva/commit/cacf51dbb9748b1dbe97b35f3c593a0a272bd4db.patch";
       sha256 = "11q7dkz2x1888f3awnlr1nbbxzzfjrr46kd0kk6sgjdkyfh50cvv";
     })
+
+    # to fix `cargo test -- --test-threads $NIX_BUILD_CORES`
+    (fetchpatch {
+      url = "https://github.com/NerdyPepper/eva/commit/ccfb3d327567dbaf03b2283c7e684477e2e84590.patch";
+      sha256 = "003yxqlyi8jna0rf05q2a006r2pkz6pcwwfl3dv8zb6p83kk1kgj";
+    })
   ];
 
   meta = with stdenv.lib; {