Removing hardcoded hashes from Nix flake.

Co-authored-by: max <[email protected]>
Signed-off-by: Ryan Slawson <[email protected]>

Author: rslawson

.github/workflows/github-actions-cron-update-OR.yml

@@ -23,21 +23,28 @@ jobs:
           git checkout master
           git pull
       - if: "steps.remote-update.outputs.has_update != ''"
-        name: Create Draft PR
-        uses: peter-evans/create-pull-request@v7
-        with:
-          token: ${{ github.token }}
-          signoff: true
-          delete-branch: true
-          title: 'Update OpenROAD submodule'
-          body: |
-            Automated action to update tools/OpenROAD submodule and tighten CI rule checking.
-            [ci:rules-tighten]
-          labels: UpdateRules
-          reviewers: |
-            vvbandeira
-            maliberty
-          draft: true
-          branch: update-openroad
-          commit-message: |
-              [BOT] Update OpenROAD submodule
+        steps:
+        - name: Install Nix
+          uses: cachix/install-nix-action@v31
+          with:
+            github_access_token: ${{ secrets.GITHUB_TOKEN }}
+        - name: Update flake.lock
+          run: nix --extra-experimental-features "nix-command flakes" flake update openroad-abc-src openroad-opensta-src openroad-flake
+        - name: Create Draft PR
+          uses: peter-evans/create-pull-request@v7
+          with:
+            token: ${{ github.token }}
+            signoff: true
+            delete-branch: true
+            title: 'Update OpenROAD submodule'
+            body: |
+              Automated action to update tools/OpenROAD submodule and tighten CI rule checking.
+              [ci:rules-tighten]
+            labels: UpdateRules
+            reviewers: |
+              vvbandeira
+              maliberty
+            draft: true
+            branch: update-openroad
+            commit-message: |
+                [BOT] Update OpenROAD submodule

.github/workflows/github-actions-cron-update-yosys.yml

@@ -27,16 +27,23 @@ jobs:
           echo "::set-output name=has_update::$(git --no-pager diff --name-only ${latesttag}..HEAD)"
           git checkout ${latesttag}
       - if: "steps.remote-update.outputs.has_update != ''"
-        name: Create Draft PR
-        uses: peter-evans/create-pull-request@v6
-        with:
-          token: ${{ github.token }}
-          signoff: true
-          delete-branch: true
-          title: 'Update yosys submodule'
-          reviewers: |
-            habibayassin
-          draft: true
-          branch: update-yosys
-          commit-message: |
-              [BOT] Update yosys submodule
+        steps:
+          - name: Install Nix
+            uses: cachix/install-nix-action@v31
+            with:
+              github_access_token: ${{ secrets.GITHUB_TOKEN }}
+          - name: Update flake.lock
+            run: nix --extra-experimental-features "nix-command flakes" flake update yosys-abc-src yosys-cxxopts-src yosys-flake
+          - name: Create Draft PR
+            uses: peter-evans/create-pull-request@v6
+            with:
+              token: ${{ github.token }}
+              signoff: true
+              delete-branch: true
+              title: 'Update yosys submodule'
+              reviewers: |
+                habibayassin
+              draft: true
+              branch: update-yosys
+              commit-message: |
+                  [BOT] Update yosys submodule

flake.lock

@@ -2,28 +2,90 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     flake-utils.url = "github:numtide/flake-utils";
-    openroad = {
-      type = "git";
-      url = "https://github.com/The-OpenROAD-Project/OpenROAD";
-      submodules = true;
-      rev = "ec1bf1a13902813b722f8341c432cd09714d9e55";
+    openroad-abc-src = {
+      url = "git+file:tools/OpenROAD/third-party/abc";
+      flake = false;
     };
-    yosys = {
-      type = "git";
-      url = "https://github.com/The-OpenROAD-Project/yosys";
-      submodules = true;
-      rev = "c4b5190229616f7ebf8197f43990b4429de3e420";
+    openroad-opensta-src = {
+      url = "git+file:tools/OpenROAD/src/sta";
+      flake = false;
+    };
+    openroad-flake = {
+      url = "git+file:tools/OpenROAD";
+      flake = true;
+    };
+    yosys-abc-src = {
+      url = "git+file:tools/yosys/abc";
+      flake = false;
+    };
+    yosys-cxxopts-src = {
+      url = "git+file:tools/yosys/libs/cxxopts";
+      flake = false;
+    };
+    yosys-flake = {
+      url = "git+file:tools/yosys";
+      flake = true;
     };
   };
-  outputs = { self, nixpkgs, flake-utils, openroad, yosys }: flake-utils.lib.eachDefaultSystem (
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+    openroad-abc-src,
+    openroad-opensta-src,
+    openroad-flake,
+    yosys-abc-src,
+    yosys-cxxopts-src,
+    yosys-flake,
+  }: flake-utils.lib.eachDefaultSystem (
     system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
-      in {
+        openroad = (openroad-flake.packages.${system}.default.overrideAttrs (previousAttrs: {
+          prePatch = builtins.concatStringsSep "\n" [
+            (''
+              cp -r --preserve=mode ${openroad-opensta-src} src/sta
+              chmod -R +w src/sta
+              cp -r --preserve=mode ${openroad-abc-src} third-party/abc
+              chmod -R +w third-party/abc
+            '')
+            (previousAttrs.prePatch or "")
+          ];
+        }));
+        yosys-abc = pkgs.stdenv.mkDerivation {
+          name = "yosys-abc";
+          src = "${yosys-abc-src}";
+          nativeBuildInputs = [ pkgs.cmake ];
+          buildInputs = [ pkgs.readline ];
+          installPhase = ''
+            runHook preInstall
+            install -Dm755 'abc' "$out/bin/abc"
+            install -Dm444 'libabc.a' "$out/lib/libabc.a"
+            runHook postInstall
+          '';
+          buildPhase = ''
+            make ABC_USE_PIC=1 abc libabc.a
+          '';
+        };
+        yosys = (yosys-flake.packages.${system}.default.overrideAttrs (previousAttrs: {
+          prePatch = builtins.concatStringsSep "\n" [
+            (''
+              cp -r --preserve=mode ${yosys-cxxopts-src} libs/cxxopts
+              chmod -R +w libs/cxxopts
+            '')
+            (previousAttrs.prePatch or "")
+          ];
+          installPhase = ''
+            make install PREFIX=$out ABCEXTERNAL=yosys-abc
+            ln -s ${yosys-abc}/bin/abc $out/bin/yosys-abc
+          '';
+        }));
+    in {
       devShells.default = pkgs.mkShell {
         buildInputs = [
-          openroad.packages.${system}.default
-          yosys.packages.${system}.default
+          openroad
+          yosys-abc
+          yosys
           pkgs.time
           pkgs.klayout
           pkgs.verilator
@@ -37,6 +99,9 @@
           pkgs.python3Packages.yamlfix
         ];
       };
+      packages.openroad = openroad;
+      packages.yosys-abc = yosys-abc;
+      packages.yosys = yosys;
     }
   );
 }