use std::{env, fs};
use std::path::PathBuf;
fn main() {
let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
println!("cargo:rustc-link-search={}", out_dir.display());
let boards: Vec<_> = env::vars().filter_map(|(key, _value)| {
if key.starts_with("CARGO_FEATURE_BOARD") {
Some(key[20..].to_ascii_lowercase()) } else {
None
}
}).collect();
if boards.is_empty() {
panic!("No board features selected");
}
if boards.len() > 1 {
panic!("More than one board feature selected: {:?}", boards);
}
let board = boards.first().unwrap();
match board.as_str() {
"hifive1" => {
fs::copy("memory-hifive1.x", out_dir.join("hifive1-memory.x")).unwrap();
println!("cargo:rerun-if-changed=memory-hifive1.x");
}
"hifive1_revb" => {
fs::copy("memory-hifive1-revb.x", out_dir.join("hifive1-memory.x")).unwrap();
println!("cargo:rerun-if-changed=memory-hifive1-revb.x");
}
"lofive" => {}
other => panic!("Unknown board: {}", other),
}
fs::copy("hifive1-link.x", out_dir.join("hifive1-link.x")).unwrap();
}