chore: update nix files (#360)

* ci: ignore nix files

* chore: add nix flake

.github/workflows/go.yml

@@ -4,11 +4,15 @@ on:
   push:
     tags: ["v*"]
     paths-ignore:
-      - '**/*.md'
+      - "**/*.md"
+      - "**/*.nix"
+      - "**/*.lock"
   pull_request:
     branches: [main]
     paths-ignore:
-      - '**/*.md'
+      - "**/*.md"
+      - "**/*.nix"
+      - "**/*.lock"
 
 jobs:
   build:

.github/workflows/golang-ci.yml

@@ -4,10 +4,14 @@ on:
     tags: [v*]
     branches: [main]
     paths-ignore:
-      - '**/*.md'
+      - "**/*.md"
+      - "**/*.nix"
+      - "**/*.lock"
   pull_request:
     paths-ignore:
-      - '**/*.md'
+      - "**/*.md"
+      - "**/*.nix"
+      - "**/*.lock"
 jobs:
   golangci:
     name: lint

.github/workflows/integration.yml

@@ -5,11 +5,15 @@ on:
     tags: ["v*"]
     branches: [main]
     paths-ignore:
-      - '**/*.md'
+      - "**/*.md"
+      - "**/*.nix"
+      - "**/*.lock"
   pull_request:
     branches: [main]
     paths-ignore:
-      - '**/*.md'
+      - "**/*.md"
+      - "**/*.nix"
+      - "**/*.lock"
 jobs:
   kubernetes-docker:
     runs-on: macos-11

colima.nix

@@ -0,0 +1,29 @@
+{ pkgs ? import <nixpkgs> }:
+
+with pkgs;
+
+buildGo118Module {
+  name = "colima";
+  pname = "colima";
+  src = ./.;
+  nativeBuildInputs = [ installShellFiles makeWrapper git ];
+  vendorSha256 = "sha256-jDzDwK7qA9lKP8CfkKzfooPDrHuHI4OpiLXmX9vOpOg=";
+
+  # `nix-build` has .git folder but `nix build` does not, this caters for both cases
+  preConfigure = ''
+    export VERSION="$(git describe --tags --always || echo nix-build-at-"$(date +%s)")"
+    export REVISION="$(git rev-parse HEAD || echo nix-unknown)"
+    ldflags="-X github.com/abiosoft/colima/config.appVersion=$VERSION
+              -X github.com/abiosoft/colima/config.revision=$REVISION"
+  '';
+
+  postInstall = ''
+    wrapProgram $out/bin/colima \
+      --prefix PATH : ${lib.makeBinPath [ qemu lima ]}
+    installShellCompletion --cmd colima \
+      --bash <($out/bin/colima completion bash) \
+      --fish <($out/bin/colima completion fish) \
+      --zsh <($out/bin/colima completion zsh)
+  '';
+}
+

default.nix

@@ -1,21 +1,2 @@
 with import <nixpkgs> { };
-
-buildGo118Module rec {
-  name = "colima";
-  pname = "colima";
-  src = ./.;
-  nativeBuildInputs = [ installShellFiles makeWrapper git ];
-  vendorSha256 = "sha256-jDzDwK7qA9lKP8CfkKzfooPDrHuHI4OpiLXmX9vOpOg=";
-  preConfigure = ''
-    ldflags="-X github.com/abiosoft/colima/config.appVersion=$(git describe --tags --always)
-              -X github.com/abiosoft/colima/config.revision=$(git rev-parse HEAD)"
-  '';
-  postInstall = ''
-    wrapProgram $out/bin/colima \
-      --prefix PATH : ${lib.makeBinPath [ qemu lima ]}
-    installShellCompletion --cmd colima \
-      --bash <($out/bin/colima completion bash) \
-      --fish <($out/bin/colima completion fish) \
-      --zsh <($out/bin/colima completion zsh)
-  '';
-}
+callPackage (import ./colima.nix) { }

flake.lock

@@ -0,0 +1,42 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1656065134,
+        "narHash": "sha256-oc6E6ByIw3oJaIyc67maaFcnjYOz1mMcOtHxbEf9NwQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "bee6a7250dd1b01844a2de7e02e4df7d8a0a206c",
+        "type": "github"
+      },
+      "original": {
+        "id": "flake-utils",
+        "type": "indirect"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1656546896,
+        "narHash": "sha256-WpMqq6OHQinBZjxemh2jthIvUpNoqNwqpYipbZUOsQs=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "7fb2acd492c96ea4a1a37ec060edb1e1774eeb5b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "release-22.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,20 @@
+{
+  description = "Container runtimes on macOS (and Linux) with minimal setup";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/release-22.05";
+
+  outputs = { self, nixpkgs, flake-utils }: flake-utils.lib.eachDefaultSystem
+    (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+      in
+      {
+        packages.default = import ./colima.nix { inherit pkgs; };
+        devShell = import ./shell.nix { inherit pkgs; };
+        apps.default = {
+          type = "app";
+          program = "${self.packages.${system}.default}/bin/colima";
+        };
+      }
+    );
+}