extract lambda parameters to seperate function
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parent
7b890d2458
commit
fa13a08c4d
81
build.zig
81
build.zig
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@ -8,27 +8,77 @@ pub fn build(b: *std.build.Builder) !void {
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const target = b.standardTargetOptions(.{});
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const target = b.standardTargetOptions(.{});
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const optimize = b.standardOptimizeOption(.{});
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const optimize = b.standardOptimizeOption(.{});
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const exe = b.addExecutable(.{
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var exe = b.addExecutable(.{
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.name = "bootstrap",
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.name = "bootstrap",
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.root_source_file = .{ .path = "src/main.zig" },
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.root_source_file = .{ .path = "src/main.zig" },
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.target = target,
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.target = target,
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.optimize = optimize,
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.optimize = optimize,
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});
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});
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// exe.setBuildMode(.ReleaseSafe); // TODO: ReleaseSmall is stripped. Maybe best to just leave this to user
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try lambdaBuildOptions(b, exe);
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const debug = b.option(bool, "debug", "Debug mode (do not strip executable)") orelse false;
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exe.strip = !debug;
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b.installArtifact(exe);
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b.installArtifact(exe);
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// TODO: We can cross-compile of course, but stripping and zip commands
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// TODO: We can cross-compile of course, but stripping and zip commands
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// may vary
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// may vary
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if (builtin.os.tag == .linux) {
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// TODO: Add test
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}
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fn fileExists(file_name: []const u8) bool {
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const file = std.fs.openFileAbsolute(file_name, .{}) catch return false;
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defer file.close();
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return true;
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}
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fn addArgs(allocator: std.mem.Allocator, original: []const u8, args: [][]const u8) ![]const u8 {
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var rc = original;
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for (args) |arg| {
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rc = try std.mem.concat(allocator, u8, &.{ rc, " ", arg });
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}
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return rc;
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}
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/// lambdaBuildOptions will add three build options to the build (if compiling
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/// the code on a Linux host):
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///
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/// * package: Packages the function for deployment to Lambda
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/// (dependencies are the zip executable and a shell)
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/// * iam: Gets an IAM role for the Lambda function, and creates it if it does not exist
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/// (dependencies are the AWS CLI, grep and a shell)
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/// * deploy: Deploys the lambda function to a live AWS environment
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/// (dependencies are the AWS CLI, and a shell)
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/// * remoterun: Runs the lambda function in a live AWS environment
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/// (dependencies are the AWS CLI, and a shell)
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///
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/// remoterun depends on deploy
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/// deploy depends on iam and package
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///
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/// iam and package do not have any dependencies
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///
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/// At the moment, there I do not see a way utilize the zig package manager to
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/// add modules for build.zig itself. There is some thinking in this area:
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/// https://github.com/ziglang/zig/issues/8070
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///
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/// But for now I think this is a copy/paste job
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/// TODO: Move this code into another file (temporary)
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/// TODO: Determine a way to use packages within build.zig (permanent)
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pub fn lambdaBuildOptions(b: *std.build.Builder, exe: *std.Build.Step.Compile) !void {
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// The rest of this function is currently reliant on the use of Linux
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// system being used to build the lambda function
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//
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// It is likely that much of this will work on other Unix-like OSs, but
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// we will work this out later
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//
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// TODO: support other host OSs
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if (builtin.os.tag != .linux) return;
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// Package step
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// Package step
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const package_step = b.step("package", "Package the function");
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const package_step = b.step("package", "Package the function");
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package_step.dependOn(b.getInstallStep());
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package_step.dependOn(b.getInstallStep());
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// const function_zip = b.getInstallPath(exe.installed_path.?, "function.zip");
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// const function_zip = b.getInstallPath(exe.installed_path.?, "function.zip");
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const function_zip = b.getInstallPath(.bin, "function.zip");
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const function_zip = b.getInstallPath(.bin, "function.zip");
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// TODO: https://github.com/hdorio/hwzip.zig/blob/master/src/hwzip.zig
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// TODO: allow use of user-specified exe names
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// TODO: Avoid use of system-installed zip, maybe using something like
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// https://github.com/hdorio/hwzip.zig/blob/master/src/hwzip.zig
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const zip = try std.fmt.allocPrint(b.allocator, "zip -qj9 {s} {s}", .{ function_zip, b.getInstallPath(.bin, exe.out_filename) });
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const zip = try std.fmt.allocPrint(b.allocator, "zip -qj9 {s} {s}", .{ function_zip, b.getInstallPath(.bin, exe.out_filename) });
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defer b.allocator.free(zip);
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defer b.allocator.free(zip);
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package_step.dependOn(&b.addSystemCommand(&.{ "/bin/sh", "-c", zip }).step);
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package_step.dependOn(&b.addSystemCommand(&.{ "/bin/sh", "-c", zip }).step);
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@ -44,6 +94,8 @@ pub fn build(b: *std.build.Builder) !void {
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}
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}
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}
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}
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}
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}
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// TODO: Allow custom lambda role names
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var iam_role: []u8 = &.{};
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var iam_role: []u8 = &.{};
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const iam_step = b.step("iam", "Create/Get IAM role for function");
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const iam_step = b.step("iam", "Create/Get IAM role for function");
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deploy_step.dependOn(iam_step); // iam_step will either be a noop or all the stuff below
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deploy_step.dependOn(iam_step); // iam_step will either be a noop or all the stuff below
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@ -144,21 +196,6 @@ pub fn build(b: *std.build.Builder) !void {
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run_cmd.addArgs(args);
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run_cmd.addArgs(args);
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}
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}
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const run_step = b.step("run", "Run the app");
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const run_step = b.step("remoterun", "Run the app in AWS lambda");
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run_step.dependOn(&run_cmd.step);
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run_step.dependOn(&run_cmd.step);
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// TODO: Add test
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}
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}
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fn fileExists(file_name: []const u8) bool {
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const file = std.fs.openFileAbsolute(file_name, .{}) catch return false;
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defer file.close();
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return true;
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}
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fn addArgs(allocator: std.mem.Allocator, original: []const u8, args: [][]const u8) ![]const u8 {
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var rc = original;
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for (args) |arg| {
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rc = try std.mem.concat(allocator, u8, &.{ rc, " ", arg });
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}
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return rc;
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}
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}
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