Adds CI and nix.flake

.github/workflows/validate.yml

@@ -0,0 +1,23 @@
+name: Build
+
+on:
+  pull_request:
+    branches: [master]
+  push:
+    branches: [master]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Setup Zig
+        uses: mlugg/setup-zig@v1
+        with:
+          version: 0.13.0
+
+      - name: Build
+        run: |
+          zig build

build.zig

@@ -1,9 +1,18 @@
 const std = @import("std");
 
 pub fn build(b: *std.Build) void {
+    // Options:
+
     const target = b.standardTargetOptions(.{});
     const optimize = b.standardOptimizeOption(.{});
 
+    // Targets:
+
+    const run_step = b.step("run", "Run the app");
+    const test_step = b.step("test", "Run unit tests");
+
+    // Build:
+
     const parser_toolkit = b.dependency("parser_toolkit", .{});
     const args = b.dependency("args", .{});
 
@@ -33,7 +42,6 @@ pub fn build(b: *std.Build) void {
         run_cmd.addArgs(arg);
     }
 
-    const run_step = b.step("run", "Run the app");
     run_step.dependOn(&run_cmd.step);
 
     const exe_tests = b.addTest(.{
@@ -44,6 +52,5 @@ pub fn build(b: *std.Build) void {
 
     exe_tests.root_module.addImport("hyperdoc", hyperdoc);
 
-    const test_step = b.step("test", "Run unit tests");
     test_step.dependOn(&b.addRunArtifact(exe_tests).step);
 }

flake.nix

@@ -0,0 +1,49 @@
+{
+  description = "HyperDoc, a simple hyper document format";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11";
+    flake-utils.url = "github:numtide/flake-utils";
+    zig.url = "github:mitchellh/zig-overlay";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    flake-utils,
+    ...
+  } @ inputs: let
+    overlays = [
+      # Other overlays
+      (final: prev: {
+        zigpkgs = inputs.zig.packages.${prev.system};
+      })
+    ];
+
+    # Our supported systems are the same supported systems as the Zig binaries
+    systems = builtins.attrNames inputs.zig.packages;
+  in
+    flake-utils.lib.eachSystem systems (
+      system: let
+        pkgs = import nixpkgs {inherit overlays system;};
+      in let
+        zig = pkgs.zigpkgs."0.13.0";
+      in rec {
+        packages.default = pkgs.stdenv.mkDerivation {
+          name = "hyperdoc";
+          src = ./.;
+          nativeBuildInputs = [zig];
+
+          configurePhase = "";
+
+          buildPhase = ''
+            zig build
+          '';
+
+          installPhase = ''
+            mv zig-out $out
+          '';
+        };
+      }
+    );
+}