From 61ac55008202ae006872bee778d65dacbd67c244 Mon Sep 17 00:00:00 2001
From: Peter Kolloch <info@eigenvalue.net>
Date: Tue, 23 Apr 2019 23:40:29 +0200
Subject: [PATCH] Fix #60125 - buildRustCrate: Always set CARGO_PKG_VERSION_PRE
 and CARGO_PKG_HOMEPAGE

(as cargo does)
---
 .../build-support/rust/build-rust-crate/configure-crate.nix | 6 +++---
 pkgs/build-support/rust/build-rust-crate/default.nix        | 3 ++-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/pkgs/build-support/rust/build-rust-crate/configure-crate.nix b/pkgs/build-support/rust/build-rust-crate/configure-crate.nix
index 165b3414c6a32..169adcf2d43a2 100644
--- a/pkgs/build-support/rust/build-rust-crate/configure-crate.nix
+++ b/pkgs/build-support/rust/build-rust-crate/configure-crate.nix
@@ -6,6 +6,7 @@
 , completeDeps
 , crateAuthors
 , crateDescription
+, crateHomepage
 , crateFeatures
 , crateName
 , crateVersion
@@ -91,12 +92,11 @@ in ''
   export CARGO_PKG_VERSION_MAJOR=${builtins.elemAt version 0}
   export CARGO_PKG_VERSION_MINOR=${builtins.elemAt version 1}
   export CARGO_PKG_VERSION_PATCH=${builtins.elemAt version 2}
+  export CARGO_PKG_VERSION_PRE="${versionPre}"
+  export CARGO_PKG_HOMEPAGE="${crateHomepage}"
   export NUM_JOBS=1
   export RUSTC="rustc"
   export RUSTDOC="rustdoc"
-  if [[ -n "${versionPre}" ]]; then
-    export CARGO_PKG_VERSION_PRE="${versionPre}"
-  fi
 
   BUILD=""
   if [[ ! -z "${build}" ]] ; then
diff --git a/pkgs/build-support/rust/build-rust-crate/default.nix b/pkgs/build-support/rust/build-rust-crate/default.nix
index 81e8a7ca0afa3..acb2ee63cce47 100644
--- a/pkgs/build-support/rust/build-rust-crate/default.nix
+++ b/pkgs/build-support/rust/build-rust-crate/default.nix
@@ -131,6 +131,7 @@ stdenv.mkDerivation (rec {
     crateVersion = crate.version;
     crateDescription = crate.description or "";
     crateAuthors = if crate ? authors && lib.isList crate.authors then crate.authors else [];
+    crateHomepage = crate.homepage or "";
     crateType =
       if lib.attrByPath ["procMacro"] false crate then ["proc-macro"] else
       if lib.attrByPath ["plugin"] false crate then ["dylib"] else
@@ -144,7 +145,7 @@ stdenv.mkDerivation (rec {
       inherit crateName buildDependencies completeDeps completeBuildDeps crateDescription
               crateFeatures libName build workspace_member release libPath crateVersion
               extraLinkFlags extraRustcOpts
-              crateAuthors verbose colors target_os;
+              crateAuthors crateHomepage verbose colors target_os;
     };
     buildPhase = buildCrate {
       inherit crateName dependencies