nix: improve package versioning, fix metadata

ryanccn · Sep 7, 2024 · 44ad60b · 44ad60b
1 parent f6b6300
commit 44ad60b
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Showing 2 changed files with 13 additions and 65 deletions.
diff --git a/nix/derivation.nix b/nix/derivation.nix
diff --git a/nix/package.nix b/nix/package.nix
@@ -9,9 +9,16 @@
   enableLTO ? true,
   enableOptimizeSize ? false,
 }:
+let
+  year = builtins.substring 0 4 self.lastModifiedDate;
+  month = builtins.substring 4 2 self.lastModifiedDate;
+  day = builtins.substring 6 2 self.lastModifiedDate;
+
+  formattedDate = "${year}-${month}-${day}";
+in
 rustPlatform.buildRustPackage rec {
   pname = passthru.cargoToml.package.name;
-  inherit (passthru.cargoToml.package) version;
+  version = passthru.cargoToml.package.version + "-unstable-" + formattedDate;
 
   strictDeps = true;
 
@@ -40,7 +47,11 @@ rustPlatform.buildRustPackage rec {
   nativeBuildInputs = lib.optionals stdenv.isDarwin [ pkg-config ];
 
   env =
-    lib.optionalAttrs enableLTO {
+    {
+      METADATA_LAST_MODIFIED = self.lastModified;
+      METADATA_GIT_REV = self.dirtyRev or self.rev;
+    }
+    // lib.optionalAttrs enableLTO {
       CARGO_PROFILE_RELEASE_LTO = "fat";
       CARGO_PROFILE_RELEASE_CODEGEN_UNITS = "1";
     }