ci: build a static linux binary (#10485)

* ci: build a static linux binary Signed-off-by: Etienne Millon <me@emillon.org> * Pass flags Signed-off-by: Etienne Millon <me@emillon.org> * simplify overlay Signed-off-by: Etienne Millon <me@emillon.org> --------- Signed-off-by: Etienne Millon <me@emillon.org>
ocaml · May 13, 2024 · d43d011 · d43d011
1 parent 36f2046
commit d43d011
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diff --git a/.github/workflows/binaries.yml b/.github/workflows/binaries.yml
@@ -12,15 +12,21 @@ jobs:
         include:
           - os: macos-13
             name: mac-intel
+            installable: .#
           - os: macos-14
             name: mac-arm
+            installable: .#
           - os: ubuntu-22.04
             name: linux-intel
+            installable: .#
+          - os: ubuntu-22.04
+            name: linux-intel-static
+            installable: .#dune-static
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v22
-      - run: nix build
+      - run: nix build ${{ installable }}
       - uses: actions/upload-artifact@v4
         with:
           path: result/bin/dune

diff --git a/flake.lock b/flake.lock
diff --git a/flake.nix b/flake.nix
@@ -13,13 +13,19 @@
       inputs.nixpkgs.follows = "nixpkgs";
       inputs.flake-utils.follows = "flake-utils";
     };
+    ocaml-overlays = {
+      url = "github:nix-ocaml/nix-overlays";
+      inputs.nixpkgs.follows = "nixpkgs";
+      inputs.flake-utils.follows = "flake-utils";
+    };
   };
   outputs =
     { self
     , flake-utils
     , nixpkgs
     , ocamllsp
     , melange
+    , ocaml-overlays
     }:
     flake-utils.lib.eachDefaultSystem (system:
     let
@@ -37,6 +43,24 @@
         melange.overlays.default
         ocamllsp.overlays.default
       ];
+      dune-static-overlay = self: super: {
+        ocamlPackages = super.ocaml-ng.ocamlPackages_4_14.overrideScope (oself: osuper: {
+          dune_3 = osuper.dune_3.overrideAttrs (a: {
+            src = ./.;
+            postPatch = ''
+              substituteInPlace \
+                boot/duneboot.ml \
+                --replace-fail \
+                '; link_flags' \
+                '; link_flags; ["-ccopt"; "-static"]'
+            '';
+          });
+        });
+      };
+      pkgs-static = nixpkgs.legacyPackages.${system}.appendOverlays [
+        ocaml-overlays.overlays.default
+        dune-static-overlay
+      ];
 
       ocamlformat =
         let
@@ -79,6 +103,7 @@
           installFlags = [ "PREFIX=${placeholder "out"}" "LIBDIR=$(OCAMLFIND_DESTDIR)" ];
         };
         dune = default;
+        dune-static = pkgs-static.pkgsCross.musl64.ocamlPackages.dune;
       };
 
       devShells =