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use std::env;
use std::ffi::OsString;
#[cfg(unix)]
use std::os::unix::process::CommandExt;
use std::process::Command;
fn main() {
let current_exe = env::current_exe().unwrap();
let mut sysroot = current_exe.parent().unwrap();
if sysroot.file_name().unwrap().to_str().unwrap() == "bin" {
sysroot = sysroot.parent().unwrap();
}
let cg_clif_dylib_path = sysroot.join(if cfg!(windows) { "bin" } else { "lib" }).join(
env::consts::DLL_PREFIX.to_string() + "rustc_codegen_cranelift" + env::consts::DLL_SUFFIX,
);
let passed_args = std::env::args_os().skip(1).collect::<Vec<_>>();
let mut args = vec![];
args.push(OsString::from("-Cpanic=abort"));
args.push(OsString::from("-Zpanic-abort-tests"));
if let Some(name) = option_env!("BUILTIN_BACKEND") {
args.push(OsString::from(format!("-Zcodegen-backend={name}")))
} else {
let mut codegen_backend_arg = OsString::from("-Zcodegen-backend=");
codegen_backend_arg.push(cg_clif_dylib_path);
args.push(codegen_backend_arg);
}
if !passed_args.iter().any(|arg| {
arg == "--sysroot" || arg.to_str().is_some_and(|s| s.starts_with("--sysroot="))
}) {
args.push(OsString::from("--sysroot"));
args.push(OsString::from(sysroot.to_str().unwrap()));
}
args.extend(passed_args);
let rustdoc = if let Some(rustdoc) = option_env!("RUSTDOC") {
rustdoc
} else {
// Ensure that the right toolchain is used
env::set_var("RUSTUP_TOOLCHAIN", option_env!("TOOLCHAIN_NAME").expect("TOOLCHAIN_NAME"));
"rustdoc"
};
#[cfg(unix)]
panic!("Failed to spawn rustdoc: {}", Command::new(rustdoc).args(args).exec());
#[cfg(not(unix))]
std::process::exit(
Command::new(rustdoc).args(args).spawn().unwrap().wait().unwrap().code().unwrap_or(1),
);
}
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