WIP

nix/squoosh-codec-builders/flake.nix

@@ -0,0 +1,66 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/24.05";
+    fenix.url = "github:nix-community/fenix";
+    wasm-bindgen = {
+      url = "../wasm-bindgen";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    rust-helpers = {
+      url = "../rust-helpers";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+  outputs =
+    {
+      self,
+      nixpkgs,
+      fenix,
+      wasm-bindgen,
+      rust-helpers,
+    }:
+    {
+      lib = {
+        buildSquooshCodecRust =
+          {
+            name,
+            system,
+            src,
+            cargoLock ? {
+              lockFile = "${src}/Cargo.lock";
+            },
+            wasmBindgenSha,
+            ...
+          }@args:
+          with nixpkgs.legacyPackages.${system};
+          let
+            wasm-bindgen-bin = wasm-bindgen.lib.buildFromCargoLock {
+              inherit system cargoLock;
+              sha256 = wasmBindgenSha;
+            };
+
+            codecBuild = rust-helpers.lib.buildRustPackage {
+              inherit system src cargoLock;
+              name = "${name}-codec";
+              target = "wasm32-unknown-unknown";
+            };
+          in
+          stdenv.mkDerivation (
+            (removeAttrs args [ "cargoLock" ])
+            // {
+              inherit codecBuild;
+              dontConfigure = true;
+              nativeBuildInputs = (args.nativeBuildInputs or [ ]) ++ [ wasm-bindgen-bin ];
+              buildPhase = ''
+                runHook preBuild
+
+                wasm-bindgen --target web --out-dir $out $codecBuild/*.wasm
+
+                runHook postBuild
+              '';
+              dontInstall = true;
+            }
+          );
+      };
+    };
+}