Detect SDK on Darwin.
Calls xcrun --sdk <target_sdk> --show-sdk-path which fetches the path to the SDK.
Caller owns the memory.
stderr from xcrun is ignored.
If error.OutOfMemory occurs in Allocator, this function returns null.
pub fn getSdk(gpa: Allocator, io: Io, target: *const Target) ?[]const u8
pub fn getSdk(gpa: Allocator, io: Io, target: *const Target) ?[]const u8 {
const is_simulator_abi = target.abi == .simulator;
const sdk = switch (target.os.tag) {
.driverkit => "driverkit",
.ios => if (is_simulator_abi) "iphonesimulator" else "iphoneos",
.maccatalyst, .macos => "macosx",
.tvos => if (is_simulator_abi) "appletvsimulator" else "appletvos",
.visionos => if (is_simulator_abi) "xrsimulator" else "xros",
.watchos => if (is_simulator_abi) "watchsimulator" else "watchos",
else => return null,
};
const argv = &[_][]const u8{ "xcrun", "--sdk", sdk, "--show-sdk-path" };
const result = std.process.run(gpa, io, .{ .argv = argv }) catch return null;
defer {
gpa.free(result.stderr);
gpa.free(result.stdout);
}
switch (result.term) {
.exited => |code| if (code != 0) return null,
else => return null,
}
return gpa.dupe(u8, mem.trimEnd(u8, result.stdout, "\r\n")) catch null;
}