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use std::env;
use std::path::PathBuf;
use std::process::Command;
use bindgen;
fn run_command(cmd: &str, args: &[&str]) -> Option<()> {
let status = Command::new(cmd).args(args).status().expect("Failed to execute process");
if status.success() {
Some(())
} else {
None
}
}
fn check_output(cmd: &str, args: &[&str]) -> Option<String> {
let output = Command::new(cmd).args(args).output().expect("Failed to execute process");
if output.status.success() {
Some(String::from_utf8(output.stdout).unwrap())
} else {
None
}
}
fn main() {
let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
run_command("git", &["-C", out_dir.to_str().unwrap(), "submodule", "update", "--init", "--recursive"])
.expect("Failed to clone git submodules");
let status_output =
check_output("git", &["-C", out_dir.to_str().unwrap(), "submodule", "status"])
.expect("Failed to check git submodule status");
let sub_repo =
out_dir.join(PathBuf::from(status_output.split_whitespace().skip(1).next().unwrap()));
run_command("make", &["-C", sub_repo.to_str().unwrap()])
.expect("Failed to build termio library");
let bindings = bindgen::Builder::default()
.header(sub_repo.join("termio.h").to_str().unwrap())
.blacklist_item("true_")
.blacklist_item("false_")
.blacklist_item("__bool_true_false_are_defined")
.blacklist_function("tprintf")
.blacklist_function("lgw_addf")
.generate()
.expect("Error generating bindings using bindgen");
bindings
.write_to_file(out_dir.join("bindings.rs"))
.expect("Error writing bindings to file");
println!("cargo:rustc-link-lib=static=termio");
println!("cargo:rustc-link-search={}", sub_repo.to_str().unwrap());
}
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