76 lines
2.0 KiB
Zig
76 lines
2.0 KiB
Zig
//! A zig builder step that runs "lipo" on two binaries to create
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//! a universal binary.
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const LipoStep = @This();
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const std = @import("std");
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const Step = std.build.Step;
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const FileSource = std.build.FileSource;
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const GeneratedFile = std.build.GeneratedFile;
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pub const Options = struct {
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/// The name of the xcframework to create.
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name: []const u8,
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/// The filename (not the path) of the file to create.
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out_name: []const u8,
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/// Library file (dylib, a) to package.
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input_a: FileSource,
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input_b: FileSource,
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};
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step: Step,
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builder: *std.build.Builder,
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/// Resulting binary
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out_path: GeneratedFile,
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/// See Options
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name: []const u8,
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out_name: []const u8,
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input_a: FileSource,
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input_b: FileSource,
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pub fn create(builder: *std.build.Builder, opts: Options) *LipoStep {
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const self = builder.allocator.create(LipoStep) catch @panic("OOM");
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self.* = .{
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.step = Step.init(.custom, builder.fmt("lipo {s}", .{opts.name}), builder.allocator, make),
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.builder = builder,
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.name = opts.name,
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.out_path = .{ .step = &self.step },
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.out_name = opts.out_name,
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.input_a = opts.input_a,
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.input_b = opts.input_b,
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};
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return self;
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}
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fn make(step: *Step) !void {
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const self = @fieldParentPtr(LipoStep, "step", step);
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// TODO: use the zig cache system when it is in the stdlib
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// https://github.com/ziglang/zig/pull/14571
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const output_path = self.builder.pathJoin(&.{
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self.builder.cache_root, self.out_name,
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});
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// We use a RunStep here to ease our configuration.
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{
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const run = std.build.RunStep.create(self.builder, self.builder.fmt(
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"lipo {s}",
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.{self.name},
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));
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run.addArgs(&.{
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"lipo",
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"-create",
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"-output",
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output_path,
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self.input_a.getPath(self.builder),
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self.input_b.getPath(self.builder),
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});
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try run.step.make();
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}
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self.out_path.path = output_path;
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}
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