[nix] update chisel-interface mill infra

Signed-off-by: Avimitin <[email protected]>

Author: Avimitin

flake.lock

@@ -3,19 +3,23 @@
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    chisel-nix.url = "github:chipsalliance/chisel-nix";
     nixpkgs-for-circt.url = "github:NixOS/nixpkgs/nixos-unstable-small";
     flake-utils.url = "github:numtide/flake-utils";
+    mill-ivy-fetcher = {
+      url = "github:Avimitin/mill-ivy-fetcher";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.flake-utils.follows = "flake-utils";
+    };
   };
 
-  outputs = { self, nixpkgs, chisel-nix, flake-utils, nixpkgs-for-circt }@inputs:
+  outputs = { self, nixpkgs, mill-ivy-fetcher, flake-utils, nixpkgs-for-circt }@inputs:
     let
       overlay = import ./nix/overlay.nix { inherit self; };
     in
     flake-utils.lib.eachDefaultSystem
       (system:
         let
-          pkgs = import nixpkgs { inherit system; overlays = [ chisel-nix.overlays.mill-flows overlay ]; };
+          pkgs = import nixpkgs { inherit system; overlays = [ mill-ivy-fetcher.overlays.default overlay ]; };
         in
         {
           legacyPackages = pkgs;

flake.nix

@@ -1,7 +1,7 @@
 {
     "chisel": {
         "cargoLocks": null,
-        "date": "2025-01-25",
+        "date": "2025-03-19",
         "extract": null,
         "name": "chisel",
         "passthru": null,
@@ -13,10 +13,10 @@
             "name": null,
             "owner": "chipsalliance",
             "repo": "chisel",
-            "rev": "8a1f1b66e5e87dff6c8356fae346eb46512756cf",
-            "sha256": "sha256-pB8kzqUmvHTG2FqRRjqig1FK9pGYrgBDOOekCqkwrsE=",
+            "rev": "8ca43912a43bba06d2627a22520618019c1710f9",
+            "sha256": "sha256-c0Q2Uf+MYORqvqzja4Er53h/RNOUVVm2bReMfTjiwp8=",
             "type": "github"
         },
-        "version": "8a1f1b66e5e87dff6c8356fae346eb46512756cf"
+        "version": "8ca43912a43bba06d2627a22520618019c1710f9"
     }
 }

nix/_sources/generated.json

@@ -3,14 +3,14 @@
 {
   chisel = {
     pname = "chisel";
-    version = "8a1f1b66e5e87dff6c8356fae346eb46512756cf";
+    version = "8ca43912a43bba06d2627a22520618019c1710f9";
     src = fetchFromGitHub {
       owner = "chipsalliance";
       repo = "chisel";
-      rev = "8a1f1b66e5e87dff6c8356fae346eb46512756cf";
+      rev = "8ca43912a43bba06d2627a22520618019c1710f9";
       fetchSubmodules = false;
-      sha256 = "sha256-pB8kzqUmvHTG2FqRRjqig1FK9pGYrgBDOOekCqkwrsE=";
+      sha256 = "sha256-c0Q2Uf+MYORqvqzja4Er53h/RNOUVVm2bReMfTjiwp8=";
     };
-    date = "2025-01-25";
+    date = "2025-03-19";
   };
 }

nix/_sources/generated.nix

@@ -0,0 +1,29 @@
+{ writeShellApplication
+, mill
+, mill-ivy-fetcher
+, submodules
+}:
+writeShellApplication {
+  name = "bump-chisel-interface";
+
+  runtimeInputs = [
+    mill-ivy-fetcher
+    mill
+  ];
+
+  text = ''
+    chiselDir=$(mktemp -d -t 'chisel_src_XXX')
+    cp -rT ${submodules.sources.chisel.src} "$chiselDir"/chisel
+    chmod -R u+w "$chiselDir"/chisel
+
+    mif run -p "$chiselDir"/chisel -o ./nix/chisel-mill-lock.nix
+
+    ivyLocal=$(nix build '.#chisel-snapshot' --no-link --print-out-paths -L -j auto)
+    export JAVA_TOOL_OPTIONS="''${JAVA_TOOL_OPTIONS:-} -Dcoursier.ivy.home=$ivyLocal -Divy.home=$ivyLocal"
+    mif run \
+      --targets 'dwbb[snapshot]' \
+      --targets 'jtag[snapshot]' \
+      --targets 'axi4[snapshot]' \
+      -o ./nix/chisel-interface-mill-lock.nix
+  '';
+}