Initial commit

package.nix

@@ -0,0 +1,41 @@
+{
+  lib,
+  stdenvNoCC,
+  callPackage,
+
+  zig_0_12,
+  optimize ? "ReleaseFast",
+
+  bash,
+  fallbackShell ? bash,
+}:
+
+stdenvNoCC.mkDerivation {
+  name    = "crash";
+  version = lib.head (lib.strings.match ''.*\.version = "([^"]*)".*'' (lib.readFile ./build.zig.zon));
+
+  src = ./.;
+
+  nativeBuildInputs = [ zig_0_12 ];
+
+  dontConfigure = true;
+  dontInstall   = true;
+
+  preBuild = ''
+    mkdir -p .cache
+    ln -s ${callPackage ./build.zig.zon.nix {}} .cache/p
+  '';
+
+  buildPhase = ''
+    runHook preBuild
+
+    zig build install \
+      --cache-dir $(pwd)/zig-cache \
+      --global-cache-dir $(pwd)/.cache \
+      --prefix $out \
+      -Doptimize=${optimize} \
+      -Dfallback_shell=${lib.getExe fallbackShell}
+
+    runHook postBuild
+  '';
+}