nix: cleanup derivation + static package

1 files changed, 38 insertions, 0 deletions

diff --git a/nix/static.nix b/nix/static.nix
new file mode 100644
index 0000000..22fbad6
--- /dev/null
+++ b/nix/static.nix
@@ -0,0 +1,38 @@
+{
+  lib,
+  pkgsStatic,
+  fenix,
+  naersk,
+  teawiebot,
+}: let
+  inherit (pkgsStatic.stdenv) cc;
+
+  target = pkgsStatic.stdenv.hostPlatform.config;
+  target' = builtins.replaceStrings ["-"] ["_"] target;
+  targetUpper = lib.toUpper target';
+
+  toolchain = with fenix;
+    combine [
+      minimal.cargo
+      minimal.rustc
+      targets.${target}.latest.rust-std
+    ];
+
+  naersk' = naersk.override {
+    cargo = toolchain;
+    rustc = toolchain;
+  };
+in
+  (teawiebot.override {
+    naersk = naersk';
+    lto = true;
+    optimizeSize = true;
+  })
+  .overrideAttrs (new: old: {
+    env = {
+      "CC_${target'}" = "${cc}/bin/${cc.targetPrefix}cc";
+      CARGO_BUILD_TARGET = target;
+      CARGO_BUILD_RUSTFLAGS = old.env.CARGO_BUILD_RUSTFLAGS + " -C target-feature=+crt-static";
+      "CARGO_TARGET_${targetUpper}_LINKER" = new.env."CC_${target'}";
+    };
+  })