ci: improvements to building in pipeline

.gitlab-ci.yml

@@ -1,6 +1,3 @@
-# copied a good chunk from my bfom config
-image: rust:latest
-
 stages:
   - lint
   - build
@@ -14,50 +11,45 @@ variables:
   - nix --extra-experimental-features 'nix-command flakes'  profile install nixpkgs#attic-client
   - attic login skynet https://nix-cache.skynet.ie/ $CACHE_KEY
   - attic use skynet-cache
+  - attic watch-store skynet-cache &
+
+.build_template: &nix
+  tags:
+    - nix
+  before_script:
+    - *scripts_cache
+      
+.rules_template: &rules
+  rules:
+    - if: $CI_COMMIT_TAG
+      when: never
+    - changes:
+        - src/**/*
+        - Cargo.*
+      when: always
 
 # clippy and fmt are magic
 # runs on all commits/branches
 lint-clippy:
   stage: lint
+  <<: *nix
+  <<: *rules
   script:
-    - rustup component add clippy
-    - rustc --version
-    - cargo version
-    - cargo clippy
-    - cargo test --verbose
-  rules:
-    - if: $CI_COMMIT_TAG
-      when: never
-    - changes:
-        - src/**/*
-        - Cargo.*
-      when: always
+    - nix --extra-experimental-features "nix-command flakes" build --verbose .#clippy
 
 lint-fmt:
   stage: lint
+  <<: *nix
+  <<: *rules
   script:
-    - rustup component add rustfmt
-    - rustc --version
-    - cargo version
-    - cargo fmt -- --check
-  rules:
-    - if: $CI_COMMIT_TAG
-      when: never
-    - changes:
-        - src/**/*
-        - Cargo.*
-      when: always
+    - nix --extra-experimental-features "nix-command flakes" build --verbose .#fmt
 
 
 # has to actually compile
 build:
   stage: build
-  tags:
-    - nix
-  before_script:
-    - *scripts_cache
+  <<: *nix
   script:
-    - attic watch-store skynet-cache &
     - nix --extra-experimental-features "nix-command flakes" build --verbose
   rules:
     - if: $CI_COMMIT_TAG

flake.lock

@@ -1,55 +1,57 @@
 {
   "nodes": {
-    "naersk": {
+    "crane": {
       "inputs": {
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1692351612,
-        "narHash": "sha256-KTGonidcdaLadRnv9KFgwSMh1ZbXoR/OBmPjeNMhFwU=",
-        "owner": "nix-community",
-        "repo": "naersk",
-        "rev": "78789c30d64dea2396c9da516bbcc8db3a475207",
+        "lastModified": 1717386774,
+        "narHash": "sha256-YYMGHDo4f+tu7k2q6hWNiI5C8gAN5eksb3g3EbKFf4k=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "ad21f86e47a2751faa99aecd0d494be70411d5e9",
         "type": "github"
       },
       "original": {
-        "owner": "nix-community",
-        "repo": "naersk",
+        "owner": "ipetkov",
+        "repo": "crane",
         "type": "github"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1693060755,
-        "narHash": "sha256-KNsbfqewEziFJEpPR0qvVz4rx0x6QXxw1CcunRhlFdk=",
+        "lastModified": 1714656196,
+        "narHash": "sha256-kjQkA98lMcsom6Gbhw8SYzmwrSo+2nruiTcTZp5jK7o=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "c66ccfa00c643751da2fd9290e096ceaa30493fc",
+        "rev": "94035b482d181af0a0f8f77823a790b256b7c3cc",
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1693087214,
-        "narHash": "sha256-Kn1SSqRfPpqcI1MDy82JXrPT1WI8c03TA2F0xu6kS+4=",
+        "lastModified": 1717144377,
+        "narHash": "sha256-F/TKWETwB5RaR8owkPPi+SPJh83AQsm6KrQAlJ8v/uA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f155f0cf4ea43c4e3c8918d2d327d44777b6cad4",
+        "rev": "805a384895c696f802a9bf5bf4720f37385df547",
         "type": "github"
       },
       "original": {
         "id": "nixpkgs",
-        "ref": "nixos-23.05",
+        "ref": "nixos-24.05",
         "type": "indirect"
       }
     },
     "root": {
       "inputs": {
-        "naersk": "naersk",
+        "crane": "crane",
         "nixpkgs": "nixpkgs_2",
         "utils": "utils"
       }

flake.nix

@@ -2,8 +2,8 @@
   description = "Skynet Discord Bot";
 
   inputs = {
-    nixpkgs.url = "nixpkgs/nixos-23.05";
-    naersk.url = "github:nix-community/naersk";
+    nixpkgs.url = "nixpkgs/nixos-24.05";
+    crane.url = "github:ipetkov/crane";
     utils.url = "github:numtide/flake-utils";
   };
 
@@ -21,26 +21,67 @@
     self,
     nixpkgs,
     utils,
-    naersk,
+    crane,
   }:
     utils.lib.eachDefaultSystem (
       system: let
         pkgs = nixpkgs.legacyPackages."${system}";
-        naersk-lib = naersk.lib."${system}";
+
         package_name = "skynet_discord_bot";
         desc = "Skynet Discord Bot";
-      in rec {
-        # `nix build`
-        packages."${package_name}" = naersk-lib.buildPackage {
+
+        craneLib = crane.mkLib pkgs;
+
+        src = craneLib.cleanCargoSource (craneLib.path ./.);
+
+        commonArgs = {
+          src = src;
+          strictDeps = true;
+
           pname = "${package_name}";
-          root = ./.;
 
           buildInputs = with pkgs; [
+            # Add extra build inputs here, etc.
             openssl
+          ];
+
+          nativeBuildInputs = with pkgs; [
+            # Add extra native build inputs here, etc.
             pkg-config
           ];
         };
 
+        cargoArtifacts = craneLib.buildDepsOnly (commonArgs
+          // {
+            pname = "${package_name}-deps";
+          });
+
+        clippy = craneLib.cargoClippy (commonArgs
+          // {
+            inherit cargoArtifacts;
+            cargoClippyExtraArgs = "--all-targets -- --deny warnings";
+          });
+
+        fmt = craneLib.cargoFmt {
+          inherit src;
+        };
+
+        result = craneLib.buildPackage (commonArgs
+          // {
+            inherit cargoArtifacts;
+          });
+      in rec {
+        packages = {
+          # nix build --verbose
+          "${package_name}" = result;
+
+          # nix build --verbose .#clippy
+          clippy = clippy;
+
+          # nix build --verbose .#fmt
+          fmt = fmt;
+        };
+
         defaultPackage = packages."${package_name}";
 
         # `nix run`