lambda-zig/build.zig
2024-06-08 10:01:40 -07:00

89 lines
3.6 KiB
Zig

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(.{});
const lib = b.addStaticLibrary(.{
.name = "lambda-zig",
// 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/lambda.zig"),
.target = target,
.optimize = optimize,
});
_ = b.addModule("lambda_runtime", .{
.root_source_file = b.path("src/lambda.zig"),
.target = target,
.optimize = optimize,
});
// 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);
// Creates a step for unit testing. This only builds the test executable
// but does not run it.
const main_tests = b.addTest(.{
.root_source_file = b.path("src/lambda.zig"),
.target = target,
.optimize = optimize,
});
const run_main_tests = b.addRunArtifact(main_tests);
// This creates a build step. It will be visible in the `zig build --help` menu,
// and can be selected like this: `zig build test`
// This will evaluate the `test` step rather than the default, which is "install".
const test_step = b.step("test", "Run library tests");
test_step.dependOn(&run_main_tests.step);
const exe = b.addExecutable(.{
.name = "custom",
.root_source_file = b.path("src/sample-main.zig"),
.target = target,
.optimize = optimize,
});
b.installArtifact(exe);
try lambdaBuildOptions(b, exe);
}
/// lambdaBuildOptions will add three build options to the build (if compiling
/// the code on a Linux host):
///
/// * package: Packages the function for deployment to Lambda
/// (dependencies are the zip executable and a shell)
/// * iam: Gets an IAM role for the Lambda function, and creates it if it does not exist
/// (dependencies are the AWS CLI, grep and a shell)
/// * deploy: Deploys the lambda function to a live AWS environment
/// (dependencies are the AWS CLI, and a shell)
/// * remoterun: Runs the lambda function in a live AWS environment
/// (dependencies are the AWS CLI, and a shell)
///
/// remoterun depends on deploy
/// deploy depends on iam and package
///
/// iam and package do not have any dependencies
pub fn lambdaBuildOptions(b: *std.Build, exe: *std.Build.Step.Compile) !void {
const function_name = b.option([]const u8, "function-name", "Function name for Lambda [zig-fn]") orelse "zig-fn";
try @import("lambdabuild.zig").configureBuild(b, exe, function_name);
}
pub fn configureBuild(b: *std.Build, exe: *std.Build.Step.Compile, function_name: []const u8) !void {
try @import("lambdabuild.zig").configureBuild(b, exe, function_name);
}