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153 lines
5.9 KiB
Zig
153 lines
5.9 KiB
Zig
const std = @import("std");
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const test_targets = [_]std.zig.CrossTarget{
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.{}, // native
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.{
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.cpu_arch = .x86_64,
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.os_tag = .linux,
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},
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.{
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.cpu_arch = .aarch64,
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.os_tag = .linux,
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},
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.{
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.cpu_arch = .arm,
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.os_tag = .linux,
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},
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// Windows needs to avoid std.os.getenv - we'll wait until this is needed
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// .{
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// .cpu_arch = .x86_64,
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// .os_tag = .windows,
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// },
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// I don't have a good way to test these
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// .{
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// .cpu_arch = .aarch64,
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// .os_tag = .macos,
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// },
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// .{
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// .cpu_arch = .x86_64,
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// .os_tag = .macos,
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// },
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.{
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.cpu_arch = .wasm32,
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.os_tag = .wasi,
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},
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};
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// Although this function looks imperative, note that its job is to
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// declaratively construct a build graph that will be executed by an external
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// runner.
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pub fn build(b: *std.Build) !void {
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// Standard target options allows the person running `zig build` to choose
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// what target to build for. Here we do not override the defaults, which
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// means any target is allowed, and the default is native. Other options
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// for restricting supported target set are available.
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const target = b.standardTargetOptions(.{});
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// Standard optimization options allow the person running `zig build` to select
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// between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. Here we do not
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// set a preferred release mode, allowing the user to decide how to optimize.
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const optimize = b.standardOptimizeOption(.{});
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const lib = b.addStaticLibrary(.{
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.name = "universal-lambda-zig",
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// In this case the main source file is merely a path, however, in more
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// complicated build scripts, this could be a generated file.
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.root_source_file = b.path("src/universal_lambda_build.zig"),
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.target = target,
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.optimize = optimize,
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});
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const universal_lambda = @import("src/universal_lambda_build.zig");
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universal_lambda.module_root = b.build_root.path;
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// re-expose flexilib-interface and aws_lambda modules downstream
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const flexilib_dep = b.dependency("flexilib", .{
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.target = target,
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.optimize = optimize,
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});
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const flexilib_module = flexilib_dep.module("flexilib-interface");
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_ = b.addModule("flexilib-interface", .{
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.root_source_file = flexilib_module.root_source_file,
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.target = target,
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.optimize = optimize,
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});
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const aws_lambda_dep = b.dependency("lambda-zig", .{
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.target = target,
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.optimize = optimize,
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});
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const aws_lambda_module = aws_lambda_dep.module("lambda_runtime");
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_ = b.addModule("aws_lambda_runtime", .{
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.root_source_file = aws_lambda_module.root_source_file,
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.target = target,
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.optimize = optimize,
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});
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// Expose our own modules downstream
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_ = b.addModule("universal_lambda_interface", .{
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.root_source_file = b.path("src/interface.zig"),
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.target = target,
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.optimize = optimize,
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});
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_ = b.addModule("universal_lambda_handler", .{
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.root_source_file = b.path("src/universal_lambda.zig"),
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.target = target,
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.optimize = optimize,
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});
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universal_lambda.addImports(b, lib, null);
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// This declares intent for the library to be installed into the standard
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// location when the user invokes the "install" step (the default step when
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// running `zig build`).
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b.installArtifact(lib);
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const test_step = b.step("test", "Run tests (all architectures)");
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const native_test_step = b.step("test-native", "Run tests (native only)");
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for (test_targets) |t| {
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// Creates steps for unit testing. This only builds the test executable
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// but does not run it.
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const exe_tests = b.addTest(.{
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.name = "test: as executable",
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.root_source_file = b.path("src/test.zig"),
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.target = b.resolveTargetQuery(t),
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.optimize = optimize,
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});
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universal_lambda.addImports(b, exe_tests, null);
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var run_exe_tests = b.addRunArtifact(exe_tests);
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run_exe_tests.skip_foreign_checks = true;
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test_step.dependOn(&run_exe_tests.step);
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if (t.cpu_arch == null) native_test_step.dependOn(&run_exe_tests.step);
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// Universal lambda can end up as an exe or a lib. When it is a library,
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// we end up changing the root source file away from downstream so we can
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// control exports and such. This is just flexilib for now, but we could
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// end up in a situation where we need to create an array of libraries
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// with various roots that all meet the rest of the build DAG at test_step
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// in the future. Scaleway, for instance, is another system that works
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// via shared library
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const lib_tests = b.addTest(.{
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.name = "test: as library",
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.root_source_file = b.path("src/flexilib.zig"),
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.target = b.resolveTargetQuery(t),
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.optimize = optimize,
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});
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universal_lambda.addImports(b, lib_tests, null);
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var run_lib_tests = b.addRunArtifact(lib_tests);
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run_lib_tests.skip_foreign_checks = true;
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test_step.dependOn(&run_lib_tests.step);
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if (t.cpu_arch == null) native_test_step.dependOn(&run_lib_tests.step);
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}
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}
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pub fn configureBuild(b: *std.Build, cs: *std.Build.Step.Compile, universal_lambda_zig_dep: *std.Build.Dependency) !void {
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try @import("src/universal_lambda_build.zig").configureBuild(b, cs, universal_lambda_zig_dep);
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}
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pub fn addImports(b: *std.Build, cs: *std.Build.Step.Compile, universal_lambda_zig_dep: *std.Build.Dependency) void {
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// The underlying call has an optional dependency here, but we do not.
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// Downstream must provide the dependency, which will ensure that the
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// modules we have exposed above do, in fact, get exposed
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return @import("src/universal_lambda_build.zig").addImports(b, cs, universal_lambda_zig_dep);
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}
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