aws-sdk-for-zig/build.zig

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const std = @import("std");
const builtin = @import("builtin");
const Builder = @import("std").Build;
const models_subdir = "codegen/sdk-codegen/aws-models/"; // note will probably not work on windows
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const test_targets = [_]std.zig.CrossTarget{
.{}, // native
.{
.cpu_arch = .x86_64,
.os_tag = .linux,
},
.{
.cpu_arch = .aarch64,
.os_tag = .linux,
},
// // The test executable just spins forever in LLVM using nominated zig 0.12 March 2024
// // This is likely a LLVM problem unlikely to be fixed in zig 0.12
// .{
// .cpu_arch = .riscv64,
// .os_tag = .linux,
// },
.{
.cpu_arch = .arm,
.os_tag = .linux,
},
.{
.cpu_arch = .x86_64,
.os_tag = .windows,
},
.{
.cpu_arch = .aarch64,
.os_tag = .macos,
},
.{
.cpu_arch = .x86_64,
.os_tag = .macos,
},
// .{
// .cpu_arch = .wasm32,
// .os_tag = .wasi,
// },
};
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pub fn build(b: *Builder) !void {
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// 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 release options allow the person running `zig build` to select
// between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
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const optimize = b.standardOptimizeOption(.{});
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// TODO: Embed the current git version in the code. We can do this
// by looking for .git/HEAD (if it exists, follow the ref to /ref/heads/whatevs,
// grab that commit, and use b.addOptions/exe.addOptions to generate the
// Options file. See https://github.com/ziglang/zig/issues/14979 for usage
// example.
//
// From there, I'm not sure what the generated file looks like or quite how
// to use, but that should be easy. It may also give some ideas on the
// code gen piece itself, though it might be nice to leave as a seperate
// executable
// TODO: This executable should not be built when importing as a package.
// It relies on code gen and is all fouled up when getting imported
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const exe = b.addExecutable(.{
.name = "demo",
.root_source_file = .{ .path = "src/main.zig" },
.target = target,
.optimize = optimize,
});
const smithy_dep = b.dependency("smithy", .{
// These are the arguments to the dependency. It expects a target and optimization level.
.target = target,
.optimize = optimize,
});
const smithy_module = smithy_dep.module("smithy");
exe.root_module.addImport("smithy", smithy_module); // not sure this should be here...
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// Expose module to others
_ = b.addModule("aws", .{
.root_source_file = .{ .path = "src/aws.zig" },
.imports = &.{.{ .name = "smithy", .module = smithy_module }},
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});
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// Expose module to others
_ = b.addModule("aws-signing", .{
.root_source_file = .{ .path = "src/aws_signing.zig" },
.imports = &.{.{ .name = "smithy", .module = smithy_module }},
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});
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// TODO: This does not work correctly due to https://github.com/ziglang/zig/issues/16354
//
// We are working here with kind of a weird dependency though. So we can do this
// another way
//
// TODO: These target/optimize are not correct, as we need to run the thing
// const codegen = b.anonymousDependency("codegen/", @import("codegen/build.zig"), .{
// .target = target,
// .optimize = optimize,
// });
// const codegen_cmd = b.addRunArtifact(codegen.artifact("codegen"));
// exe.step.dependOn(&codegen_cmd.step);
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const run_cmd = b.addRunArtifact(exe);
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run_cmd.step.dependOn(b.getInstallStep());
if (b.args) |args| {
run_cmd.addArgs(args);
}
const run_step = b.step("run", "Run the app");
run_step.dependOn(&run_cmd.step);
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const gen_step = blk: {
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const cg = b.step("gen", "Generate zig service code from smithy models");
const cg_exe = b.addExecutable(.{
.name = "codegen",
.root_source_file = .{ .path = "codegen/src/main.zig" },
// We need this generated for the host, not the real target
.target = b.host,
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.optimize = if (b.verbose) .Debug else .ReleaseSafe,
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});
cg_exe.root_module.addImport("smithy", smithy_dep.module("smithy"));
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var cg_cmd = b.addRunArtifact(cg_exe);
cg_cmd.addArg("--models");
const hash = hash_blk: {
for (b.available_deps) |dep| {
const dep_name = dep.@"0";
const dep_hash = dep.@"1";
if (std.mem.eql(u8, dep_name, "models"))
break :hash_blk dep_hash;
}
return error.DependencyNamedModelsNotFoundInBuildZigZon;
};
cg_cmd.addArg(try std.fs.path.join(
b.allocator,
&[_][]const u8{
b.graph.global_cache_root.path.?,
"p",
hash,
models_subdir,
},
));
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cg_cmd.addArg("--output");
cg_cmd.addDirectoryArg(b.path("src/models"));
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if (b.verbose)
cg_cmd.addArg("--verbose");
// cg_cmd.step.dependOn(&fetch_step.step);
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// TODO: this should use zig_exe from std.Build
// codegen should store a hash in a comment
// this would be hash of the exe that created the file
// concatenated with hash of input json. this would
// allow skipping generated files. May not include hash
// of contents of output file as maybe we want to tweak
// manually??
//
// All the hashes can be in service_manifest.zig, which
// could be fun to just parse and go nuts. Top of
// file, generator exe hash. Each import has comment
// with both input and output hash and we can decide
// later about warning on manual changes...
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cg.dependOn(&cg_cmd.step);
break :blk cg;
};
exe.step.dependOn(gen_step);
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// 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");
// // Creates a step for unit testing. This only builds the test executable
// // but does not run it.
// const unit_tests = b.addTest(.{
// .root_source_file = .{ .path = "src/aws.zig" },
// .target = target,
// .optimize = optimize,
// });
// unit_tests.root_module.addImport("smithy", smithy_dep.module("smithy"));
// unit_tests.step.dependOn(gen_step);
//
// const run_unit_tests = b.addRunArtifact(unit_tests);
// run_unit_tests.skip_foreign_checks = true;
// test_step.dependOn(&run_unit_tests.step);
for (test_targets) |t| {
// Creates a step for unit testing. This only builds the test executable
// but does not run it.
const unit_tests = b.addTest(.{
.root_source_file = .{ .path = "src/aws.zig" },
.target = b.resolveTargetQuery(t),
.optimize = optimize,
});
unit_tests.root_module.addImport("smithy", smithy_dep.module("smithy"));
unit_tests.step.dependOn(gen_step);
const run_unit_tests = b.addRunArtifact(unit_tests);
run_unit_tests.skip_foreign_checks = true;
test_step.dependOn(&run_unit_tests.step);
}
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b.installArtifact(exe);
}