44 lines
1.4 KiB
Rust
44 lines
1.4 KiB
Rust
use std::env;
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use std::path::PathBuf;
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use std::process::Command;
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fn main() {
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let chip_name = env::vars_os()
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.map(|(a, _)| a.to_string_lossy().to_string())
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.find(|x| x.starts_with("CARGO_FEATURE_STM32"))
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.expect("No stm32xx Cargo feature enabled")
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.strip_prefix("CARGO_FEATURE_")
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.unwrap()
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.to_ascii_lowercase();
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let out_dir = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
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let out_file = out_dir.join("generated.rs").to_string_lossy().to_string();
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let exit_code = Command::new("python3")
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.args(&["gen.py", &chip_name, &out_file])
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.status()
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.expect("failed to execute gen.py");
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if !exit_code.success() {
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panic!("gen.py exited with {:?}", exit_code)
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}
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stm32_metapac::peripheral_versions!(
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($peri:ident, $version:ident) => {
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println!("cargo:rustc-cfg={}", stringify!($peri));
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println!("cargo:rustc-cfg={}_{}", stringify!($peri), stringify!($version));
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};
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);
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let mut chip_and_core = chip_name.split('_');
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let chip = chip_and_core.next().expect("Unexpected stm32xx feature");
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if let Some(core) = chip_and_core.next() {
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println!("cargo:rustc-cfg={}_{}", &chip[..(chip.len() - 2)], core);
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} else {
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println!("cargo:rustc-cfg={}", &chip[..(chip.len() - 2)]);
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}
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println!("cargo:rerun-if-changed=build.rs");
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println!("cargo:rerun-if-changed=gen.py");
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}
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