switch flake setup

.github/workflows/ci.yaml

@@ -3,7 +3,7 @@ on: [push, pull_request]
 name: Continuous integration
 
 jobs:
-  check:
+  checks:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -12,76 +12,17 @@ jobs:
         with:
           name: ci
           instance: https://cache.icewind.me
-          authToken: '${{ secrets.ATTIC_TOKEN }}'
+          authToken: "${{ secrets.ATTIC_TOKEN }}"
-      - run: nix build .#check
+      - run: nix flake check --keep-going
-
-  msrv:
-    runs-on: ubuntu-latest
-    needs: check
-    steps:
-      - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v27
-      - uses: icewind1991/attic-action@v1
-        with:
-          name: ci
-          instance: https://cache.icewind.me
-          authToken: '${{ secrets.ATTIC_TOKEN }}'
-      - run: nix build .#msrv
-
-  clippy:
-    runs-on: ubuntu-latest
-    needs: check
-    steps:
-      - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v27
-      - uses: icewind1991/attic-action@v1
-        with:
-          name: ci
-          instance: https://cache.icewind.me
-          authToken: '${{ secrets.ATTIC_TOKEN }}'
-      - run: nix build .#clippy
-
-  tests:
-    runs-on: ubuntu-latest
-    needs: check
-    steps:
-      - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v27
-      - uses: icewind1991/attic-action@v1
-        with:
-          name: ci
-          instance: https://cache.icewind.me
-          authToken: '${{ secrets.ATTIC_TOKEN }}'
-      - run: nix build .#test
-
-  fmt:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v27
-      - uses: icewind1991/attic-action@v1
-        with:
-          name: ci
-          instance: https://cache.icewind.me
-          authToken: '${{ secrets.ATTIC_TOKEN }}'
-      - run: nix build .#fmt
-
-  miri-matrix:
-    runs-on: ubuntu-latest
-    outputs:
-      matrix: ${{ steps.set-matrix.outputs.matrix }}
-    steps:
-      - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v27
-      - id: set-matrix
-        run: echo "matrix={\"target\":$(nix eval --json ".#miriTargets.x86_64-linux")}" | tee $GITHUB_OUTPUT
 
   miri-tests:
     runs-on: ubuntu-latest
-    needs: [tests, miri-matrix]
+    needs: [checks]
     strategy:
       fail-fast: false
-      matrix: ${{fromJson(needs.miri-matrix.outputs.matrix)}}
+      matrix:
+        toolchain:
+          ["x86_64-unknown-linux-musl", "mips64-unknown-linux-gnuabi64"]
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v27
@@ -89,13 +30,18 @@ jobs:
         with:
           name: ci
           instance: https://cache.icewind.me
-          authToken: '${{ secrets.ATTIC_TOKEN }}'
+          authToken: "${{ secrets.ATTIC_TOKEN }}"
-      - run: nix develop .#miri -c cargo miri test --target ${{ matrix.target }}
+      - run: nix run .#miri -- test --target ${{ matrix.target }}
 
   semver:
     runs-on: ubuntu-latest
-    needs: check
+    needs: checks
     steps:
       - uses: actions/checkout@v4
-      - name: Check semver
+      - uses: cachix/install-nix-action@v27
-        uses: obi1kenobi/cargo-semver-checks-action@v2
+      - uses: icewind1991/attic-action@v1
+        with:
+          name: ci
+          instance: https://cache.icewind.me
+          authToken: "${{ secrets.ATTIC_TOKEN }}"
+      - run: nix run .#semver-checks

README.md

@@ -62,8 +62,8 @@ write_stream.write(&ComplexType {
 
 Licensed under either of
 
-* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or https://www.apache.org/licenses/LICENSE-2.0)
+- Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or https://www.apache.org/licenses/LICENSE-2.0)
-* MIT license ([LICENSE-MIT](LICENSE-MIT) or https://opensource.org/licenses/MIT)
+- MIT license ([LICENSE-MIT](LICENSE-MIT) or https://opensource.org/licenses/MIT)
 
 at your option.
 

flake.lock

@@ -1,32 +1,69 @@
 {
   "nodes": {
-    "naersk": {
+    "crane": {
+      "locked": {
+        "lastModified": 1727060013,
+        "narHash": "sha256-/fC5YlJy4IoAW9GhkJiwyzk0K/gQd9Qi4rRcoweyG9E=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "6b40cc876c929bfe1e3a24bf538ce3b5622646ba",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "flakelight": {
       "inputs": {
         "nixpkgs": [
           "nixpkgs"
         ]
       },
       "locked": {
-        "lastModified": 1721727458,
+        "lastModified": 1727095190,
-        "narHash": "sha256-r/xppY958gmZ4oTfLiHN0ZGuQ+RSTijDblVgVLFi1mw=",
+        "narHash": "sha256-eZfUxkPefTP5fknpr2/X+snNysEj830Ft1IaW7VafFE=",
         "owner": "nix-community",
-        "repo": "naersk",
+        "repo": "flakelight",
-        "rev": "3fb418eaf352498f6b6c30592e3beb63df42ef11",
+        "rev": "9e0f7e360688187ed3d7d8b033028e0d3473aa2c",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "repo": "naersk",
+        "repo": "flakelight",
+        "type": "github"
+      }
+    },
+    "mill-scale": {
+      "inputs": {
+        "crane": "crane",
+        "flakelight": [
+          "flakelight"
+        ],
+        "rust-overlay": "rust-overlay"
+      },
+      "locked": {
+        "lastModified": 1727556185,
+        "narHash": "sha256-pEUzAE5WRpPGQYeG/U2mftfHAn2q4aO1pefJNY2EoVw=",
+        "owner": "icewind1991",
+        "repo": "mill-scale",
+        "rev": "823fb3493cb4838c81627821f383af918db33a7f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "icewind1991",
+        "repo": "mill-scale",
         "type": "github"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1726838390,
+        "lastModified": 1726969270,
-        "narHash": "sha256-NmcVhGElxDbmEWzgXsyAjlRhUus/nEqPC5So7BOJLUM=",
+        "narHash": "sha256-8fnFlXBgM/uSvBlLWjZ0Z0sOdRBesyNdH0+esxqizGc=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "944b2aea7f0a2d7c79f72468106bc5510cbf5101",
+        "rev": "23cbb250f3bf4f516a2d0bf03c51a30900848075",
         "type": "github"
       },
       "original": {
@@ -37,24 +74,25 @@
     },
     "root": {
       "inputs": {
-        "naersk": "naersk",
+        "flakelight": "flakelight",
-        "nixpkgs": "nixpkgs",
+        "mill-scale": "mill-scale",
-        "rust-overlay": "rust-overlay",
+        "nixpkgs": "nixpkgs"
-        "utils": "utils"
       }
     },
     "rust-overlay": {
       "inputs": {
         "nixpkgs": [
+          "mill-scale",
+          "flakelight",
           "nixpkgs"
         ]
       },
       "locked": {
-        "lastModified": 1726972233,
+        "lastModified": 1727058553,
-        "narHash": "sha256-FlL/bNESOtDQoczRhmPfReNAmLqVg+dAX4HectPOOf0=",
+        "narHash": "sha256-tY/UU3Qk5gP/J0uUM4DZ6wo4arNLGAVqLKBotILykfQ=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "36d73192555e569d27579f6c486fea3ab768823c",
+        "rev": "edc5b0f896170f07bd39ad59d6186fcc7859bbb2",
         "type": "github"
       },
       "original": {
@@ -62,39 +100,6 @@
         "repo": "rust-overlay",
         "type": "github"
       }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
-    },
-    "utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1726560853,
-        "narHash": "sha256-X6rJYSESBVr3hBoH0WbKE5KvhPU5bloyZ2L4K60/fPQ=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "c1dfcf08411b08f6b8615f7d8971a2bfa81d5e8a",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
     }
   },
   "root": "root",

flake.nix

@@ -1,101 +1,16 @@
 {
   inputs = {
     nixpkgs.url = "nixpkgs/nixos-24.05";
-    utils.url = "github:numtide/flake-utils";
+    flakelight = {
-    naersk.url = "github:nix-community/naersk";
+      url = "github:nix-community/flakelight";
-    naersk.inputs.nixpkgs.follows = "nixpkgs";
+      inputs.nixpkgs.follows = "nixpkgs";
-    rust-overlay.url = "github:oxalica/rust-overlay";
-    rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
     };
-
+    mill-scale = {
-  outputs = {
+      url = "github:icewind1991/mill-scale";
-    self,
+      inputs.flakelight.follows = "flakelight";
-    nixpkgs,
-    utils,
-    naersk,
-    rust-overlay,
-  }:
-    utils.lib.eachDefaultSystem (system: let
-      overlays = [ (import rust-overlay) ];
-      pkgs = import nixpkgs {
-        inherit system overlays;
-      };
-      inherit (pkgs) lib callPackage rust-bin mkShell;
-      inherit (builtins) listToAttrs fromTOML readFile;
-      inherit (lib.sources) sourceByRegex;
-
-      toolchain = rust-bin.stable.latest.default;
-      msrv = (fromTOML (readFile ./Cargo.toml)).package.rust-version;
-      msrvToolchain = rust-bin.stable."${msrv}".default;
-      miriToolchain = rust-bin.selectLatestNightlyWith (toolchain: toolchain.default.override {
-        extensions = [ "miri" "rust-src" ];
-      });
-
-      naersk' = callPackage naersk {
-        rustc = toolchain;
-        cargo = toolchain;
-      };
-      msrvNaersk = callPackage naersk {
-        rustc = msrvToolchain;
-        cargo = msrvToolchain;
-      };
-      src = sourceByRegex ./. ["Cargo.*" "(src|tests|bitbuffer_derive|benches)(/.*)?"];
-
-      naerskOpt = {
-        pname = "bitbuffer";
-        root = src;
-        copySources = ["bitbuffer_derive"];
-      };
-    in rec {
-      packages = {
-        check = naersk'.buildPackage (naerskOpt // {
-          mode = "check";
-        });
-        test = naersk'.buildPackage (naerskOpt // {
-          mode = "test";
-          cargoTestOptions = x: x ++ ["--all-features"];
-        });
-        clippy = naersk'.buildPackage (naerskOpt // {
-          mode = "clippy";
-        });
-        fmt = naersk'.buildPackage (naerskOpt // {
-          mode = "fmt";
-        });
-        msrv = msrvNaersk.buildPackage (naerskOpt // {
-          mode = "check";
-        });
-      };
-
-      miriTargets = [
-        "x86_64-unknown-linux-musl" # little-endian
-        "mips64-unknown-linux-gnuabi64" # big-endian
-      ];
-
-      devShells = let
-        tools = with pkgs; [
-          bacon
-          cargo-edit
-          cargo-outdated
-          (writeShellApplication {
-            name = "cargo-expand";
-            runtimeInputs = [cargo-expand toolchain];
-            text = ''
-              # shellcheck disable=SC2068
-              RUSTC_BOOTSTRAP=1 cargo-expand $@
-            '';
-          })
-          cargo-semver-checks
-        ];
-      in {
-        default = mkShell {
-          nativeBuildInputs = [toolchain] ++ tools;
-        };
-        msrv = mkShell {
-          nativeBuildInputs = [msrvToolchain] ++ tools;
-        };
-        miri = mkShell {
-          nativeBuildInputs = [miriToolchain] ++ tools;
     };
   };
-    });
+  outputs = { mill-scale, ... }: mill-scale ./. {
+    devShell.packages = pkgs: with pkgs; [ cargo-expand ];
+  };
 }