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// Copyright 2024, Linaro Limited
// Author(s): Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
// SPDX-License-Identifier: GPL-2.0-or-later
#[cfg(unix)]
use std::os::unix::fs::symlink as symlink_file;
#[cfg(windows)]
use std::os::windows::fs::symlink_file;
use std::{env, fs::remove_file, io::Result, path::Path};
fn main() -> Result<()> {
// Placing bindings.inc.rs in the source directory is supported
// but not documented or encouraged.
let path = env::var("MESON_BUILD_ROOT")
.unwrap_or_else(|_| format!("{}/src", env!("CARGO_MANIFEST_DIR")));
let file = format!("{path}/bindings.inc.rs");
let file = Path::new(&file);
if !Path::new(&file).exists() {
panic!(concat!(
"\n",
" No generated C bindings found! Maybe you wanted one of\n",
" `make clippy`, `make rustfmt`, `make rustdoc`?\n",
"\n",
" For other uses of `cargo`, start a subshell with\n",
" `pyvenv/bin/meson devenv`, or point MESON_BUILD_ROOT to\n",
" the top of the build tree."
));
}
let out_dir = env::var("OUT_DIR").unwrap();
let dest_path = format!("{out_dir}/bindings.inc.rs");
let dest_path = Path::new(&dest_path);
if dest_path.symlink_metadata().is_ok() {
remove_file(dest_path)?;
}
symlink_file(file, dest_path)?;
println!("cargo:rerun-if-changed=build.rs");
Ok(())
}
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