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feat(zig): init zig template

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Artur Manuel 2025-01-25 19:12:23 +00:00
commit 8e52914770
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1
templates/zig/.envrc Normal file
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use flake

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templates/zig/.gitignore vendored Normal file
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**/*~
/.direnv
/zig-out
/.zig-cache

115
templates/zig/build.zig Normal file
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const std = @import("std");
// Although this function looks imperative, note that its job is to
// declaratively construct a build graph that will be executed by an external
// runner.
pub fn build(b: *std.Build) void {
// Standard target options allows the person running `zig build` to choose
// what target to build for. Here we do not override the defaults, which
// means any target is allowed, and the default is native. Other options
// for restricting supported target set are available.
const target = b.standardTargetOptions(.{});
// Standard optimization options allow the person running `zig build` to select
// between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. Here we do not
// set a preferred release mode, allowing the user to decide how to optimize.
const optimize = b.standardOptimizeOption(.{});
// This creates a "module", which represents a collection of source files alongside
// some compilation options, such as optimization mode and linked system libraries.
// Every executable or library we compile will be based on one or more modules.
const lib_mod = b.createModule(.{
// `root_source_file` is the Zig "entry point" of the module. If a module
// only contains e.g. external object files, you can make this `null`.
// In this case the main source file is merely a path, however, in more
// complicated build scripts, this could be a generated file.
.root_source_file = b.path("src/root.zig"),
.target = target,
.optimize = optimize,
});
// We will also create a module for our other entry point, 'main.zig'.
const exe_mod = b.createModule(.{
// `root_source_file` is the Zig "entry point" of the module. If a module
// only contains e.g. external object files, you can make this `null`.
// In this case the main source file is merely a path, however, in more
// complicated build scripts, this could be a generated file.
.root_source_file = b.path("src/main.zig"),
.target = target,
.optimize = optimize,
});
// Modules can depend on one another using the `std.Build.Module.addImport` function.
// This is what allows Zig source code to use `@import("foo")` where 'foo' is not a
// file path. In this case, we set up `exe_mod` to import `lib_mod`.
exe_mod.addImport("zig_lib", lib_mod);
// Now, we will create a static library based on the module we created above.
// This creates a `std.Build.Step.Compile`, which is the build step responsible
// for actually invoking the compiler.
const lib = b.addStaticLibrary(.{
.name = "zig",
.root_module = lib_mod,
});
// This declares intent for the library to be installed into the standard
// location when the user invokes the "install" step (the default step when
// running `zig build`).
b.installArtifact(lib);
// This creates another `std.Build.Step.Compile`, but this one builds an executable
// rather than a static library.
const exe = b.addExecutable(.{
.name = "zig",
.root_module = exe_mod,
});
// This declares intent for the executable to be installed into the
// standard location when the user invokes the "install" step (the default
// step when running `zig build`).
b.installArtifact(exe);
// This *creates* a Run step in the build graph, to be executed when another
// step is evaluated that depends on it. The next line below will establish
// such a dependency.
const run_cmd = b.addRunArtifact(exe);
// By making the run step depend on the install step, it will be run from the
// installation directory rather than directly from within the cache directory.
// This is not necessary, however, if the application depends on other installed
// files, this ensures they will be present and in the expected location.
run_cmd.step.dependOn(b.getInstallStep());
// This allows the user to pass arguments to the application in the build
// command itself, like this: `zig build run -- arg1 arg2 etc`
if (b.args) |args| {
run_cmd.addArgs(args);
}
// This creates a build step. It will be visible in the `zig build --help` menu,
// and can be selected like this: `zig build run`
// This will evaluate the `run` step rather than the default, which is "install".
const run_step = b.step("run", "Run the app");
run_step.dependOn(&run_cmd.step);
// Creates a step for unit testing. This only builds the test executable
// but does not run it.
const lib_unit_tests = b.addTest(.{
.root_module = lib_mod,
});
const run_lib_unit_tests = b.addRunArtifact(lib_unit_tests);
const exe_unit_tests = b.addTest(.{
.root_module = exe_mod,
});
const run_exe_unit_tests = b.addRunArtifact(exe_unit_tests);
// Similar to creating the run step earlier, this exposes a `test` step to
// the `zig build --help` menu, providing a way for the user to request
// running the unit tests.
const test_step = b.step("test", "Run unit tests");
test_step.dependOn(&run_lib_unit_tests.step);
test_step.dependOn(&run_exe_unit_tests.step);
}

73
templates/zig/build.zig.zon Normal file
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.{
// This is the default name used by packages depending on this one. For
// example, when a user runs `zig fetch --save <url>`, this field is used
// as the key in the `dependencies` table. Although the user can choose a
// different name, most users will stick with this provided value.
//
// It is redundant to include "zig" in this name because it is already
// within the Zig package namespace.
.name = "zig",
// This is a [Semantic Version](https://semver.org/).
// In a future version of Zig it will be used for package deduplication.
.version = "0.0.0",
// This field is optional.
// This is currently advisory only; Zig does not yet do anything
// with this value.
//.minimum_zig_version = "0.11.0",
// This field is optional.
// Each dependency must either provide a `url` and `hash`, or a `path`.
// `zig build --fetch` can be used to fetch all dependencies of a package, recursively.
// Once all dependencies are fetched, `zig build` no longer requires
// internet connectivity.
.dependencies = .{
// See `zig fetch --save <url>` for a command-line interface for adding dependencies.
//.example = .{
// // When updating this field to a new URL, be sure to delete the corresponding
// // `hash`, otherwise you are communicating that you expect to find the old hash at
// // the new URL. If the contents of a URL change this will result in a hash mismatch
// // which will prevent zig from using it.
// .url = "https://example.com/foo.tar.gz",
//
// // This is computed from the file contents of the directory of files that is
// // obtained after fetching `url` and applying the inclusion rules given by
// // `paths`.
// //
// // This field is the source of truth; packages do not come from a `url`; they
// // come from a `hash`. `url` is just one of many possible mirrors for how to
// // obtain a package matching this `hash`.
// //
// // Uses the [multihash](https://multiformats.io/multihash/) format.
// .hash = "...",
//
// // When this is provided, the package is found in a directory relative to the
// // build root. In this case the package's hash is irrelevant and therefore not
// // computed. This field and `url` are mutually exclusive.
// .path = "foo",
//
// // When this is set to `true`, a package is declared to be lazily
// // fetched. This makes the dependency only get fetched if it is
// // actually used.
// .lazy = false,
//},
},
// Specifies the set of files and directories that are included in this package.
// Only files and directories listed here are included in the `hash` that
// is computed for this package. Only files listed here will remain on disk
// when using the zig package manager. As a rule of thumb, one should list
// files required for compilation plus any license(s).
// Paths are relative to the build root. Use the empty string (`""`) to refer to
// the build root itself.
// A directory listed here means that all files within, recursively, are included.
.paths = .{
"build.zig",
"build.zig.zon",
"src",
// For example...
//"LICENSE",
//"README.md",
},
}

113
templates/zig/flake.lock generated Normal file
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{
"nodes": {
"flake-compat": {
"flake": false,
"locked": {
"lastModified": 1696426674,
"narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
"owner": "edolstra",
"repo": "flake-compat",
"rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
"type": "github"
},
"original": {
"owner": "edolstra",
"repo": "flake-compat",
"type": "github"
}
},
"flake-utils": {
"inputs": {
"systems": "systems"
},
"locked": {
"lastModified": 1705309234,
"narHash": "sha256-uNRRNRKmJyCRC/8y1RqBkqWBLM034y4qN7EprSdmgyA=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "1ef2e671c3b0c19053962c07dbda38332dcebf26",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "flake-utils",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1737632463,
"narHash": "sha256-38J9QfeGSej341ouwzqf77WIHAScihAKCt8PQJ+NH28=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "0aa475546ed21629c4f5bbf90e38c846a99ec9e9",
"type": "github"
},
"original": {
"owner": "nixos",
"ref": "nixos-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"nixpkgs_2": {
"locked": {
"lastModified": 1708161998,
"narHash": "sha256-6KnemmUorCvlcAvGziFosAVkrlWZGIc6UNT9GUYr0jQ=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "84d981bae8b5e783b3b548de505b22880559515f",
"type": "github"
},
"original": {
"owner": "NixOS",
"ref": "nixos-23.11",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"nixpkgs": "nixpkgs",
"zig": "zig"
}
},
"systems": {
"locked": {
"lastModified": 1681028828,
"narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
"owner": "nix-systems",
"repo": "default",
"rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
"type": "github"
},
"original": {
"owner": "nix-systems",
"repo": "default",
"type": "github"
}
},
"zig": {
"inputs": {
"flake-compat": "flake-compat",
"flake-utils": "flake-utils",
"nixpkgs": "nixpkgs_2"
},
"locked": {
"lastModified": 1737419334,
"narHash": "sha256-xEQ+2zoihSR8TSHH5KMceReUd9Ae2tPNLFoQviGpaAg=",
"owner": "mitchellh",
"repo": "zig-overlay",
"rev": "11ba4193561b6096b2c72174163940a50251a99c",
"type": "github"
},
"original": {
"owner": "mitchellh",
"repo": "zig-overlay",
"type": "github"
}
}
},
"root": "root",
"version": 7
}

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templates/zig/flake.nix Normal file
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{
description = "REPLACE_ME";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
zig.url = "github:mitchellh/zig-overlay";
};
outputs = inputs @ {
self,
nixpkgs,
...
}: let
eachSystem = nixpkgs.lib.genAttrs ["x86_64-linux" "aarch64-linux"];
makePkgs = system:
import nixpkgs {
inherit system;
overlays = [
inputs.zig.overlays.default
];
};
in {
packages = eachSystem (system: let
pkgs = makePkgs system;
in {
default = pkgs.callPackage ./flake/package.nix {};
REPLACE_ME = self.packages.${system}.default {};
});
devShells = eachSystem (system: let
pkgs = makePkgs system;
in {
default = pkgs.callPackage ./flake/shell.nix {};
});
};
}

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templates/zig/flake/package.nix Normal file
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{
stdenv,
zigpkgs,
zig,
}:
stdenv.mkDerivation {
pname = "REPLACE_ME";
version = "REPLACE_VER";
src = ../.;
nativeBuildInputs = [
(zig.hook.overrideAttrs (_: {
propagatedBuildInputs = [
zigpkgs.master
];
}))
];
meta = {
description = "REPLACE_DESC";
homepage = "REPLACE_HOME";
};
}

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templates/zig/flake/shell.nix Normal file
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{
mkShell,
zigpkgs,
}:
mkShell {
packages = [
zigpkgs.master
];
}

14
templates/zig/flake/zig.nix Normal file
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{
zig,
fetchFromGitHub,
}:
zig.overrideAttrs (finalAttrs: {
version = "unstable-2025-01-25";
src = fetchFromGitHub {
owner = "ziglang";
repo = finalAttrs.pname;
rev = "d0d5ca2b6c8253c27e945ed8d973a90c28a3cbf5";
hash = "sha256-v5B8vS2zA+e9OArPaprrLfIsehiSRCK7aZsziKhygRI=";
};
})

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templates/zig/src/main.zig Normal file
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//! By convention, main.zig is where your main function lives in the case that
//! you are building an executable. If you are making a library, the convention
//! is to delete this file and start with root.zig instead.
pub fn main() !void {
// Prints to stderr (it's a shortcut based on `std.io.getStdErr()`)
std.debug.print("All your {s} are belong to us.\n", .{"codebase"});
// stdout is for the actual output of your application, for example if you
// are implementing gzip, then only the compressed bytes should be sent to
// stdout, not any debugging messages.
const stdout_file = std.io.getStdOut().writer();
var bw = std.io.bufferedWriter(stdout_file);
const stdout = bw.writer();
try stdout.print("Run `zig build test` to run the tests.\n", .{});
try bw.flush(); // Don't forget to flush!
}
test "simple test" {
var list = std.ArrayList(i32).init(std.testing.allocator);
defer list.deinit(); // Try commenting this out and see if zig detects the memory leak!
try list.append(42);
try std.testing.expectEqual(@as(i32, 42), list.pop());
}
test "use other module" {
try std.testing.expectEqual(@as(i32, 150), lib.add(100, 50));
}
test "fuzz example" {
const global = struct {
fn testOne(input: []const u8) anyerror!void {
// Try passing `--fuzz` to `zig build test` and see if it manages to fail this test case!
try std.testing.expect(!std.mem.eql(u8, "canyoufindme", input));
}
};
try std.testing.fuzz(global.testOne, .{});
}
const std = @import("std");
/// This imports the separate module containing `root.zig`. Take a look in `build.zig` for details.
const lib = @import("zig_lib");

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//! By convention, root.zig is the root source file when making a library. If
//! you are making an executable, the convention is to delete this file and
//! start with main.zig instead.
const std = @import("std");
const testing = std.testing;
pub export fn add(a: i32, b: i32) i32 {
return a + b;
}
test "basic add functionality" {
try testing.expect(add(3, 7) == 10);
}