fn generate_tests() { use std::env; use std::ffi::OsStr; use std::fs::{self, File}; use std::io::Write; use std::path::{Path, PathBuf}; let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap()); let mut dst = File::create(Path::new(&out_dir).join("tests.rs")).unwrap(); let manifest_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap()); let tests_dir = manifest_dir.join("tests").join("rust"); let tests = fs::read_dir(&tests_dir).unwrap(); let entries = tests.map(|t| t.expect("Couldn't read test file")); println!("cargo:rerun-if-changed={}", tests_dir.display()); // Try to make a decent guess at where our binary will end up in. // // TODO(emilio): Ideally running tests will just use the library-version of // cbindgen instead of the built binary. let cbindgen_path = out_dir .parent() .unwrap() .parent() .unwrap() .parent() .unwrap() .join("cbindgen"); for entry in entries { let path_segment = if entry.file_type().unwrap().is_file() { match entry.path().extension().and_then(OsStr::to_str) { Some("rs") => {} _ => continue, }; entry .path() .file_stem() .unwrap() .to_str() .unwrap() .to_owned() } else { entry.file_name().to_str().unwrap().to_owned() }; let identifier = path_segment .replace(|c| !char::is_alphanumeric(c), "_") .replace("__", "_"); writeln!( dst, "test_file!({:?}, test_{}, {:?}, {:?});", cbindgen_path, identifier, path_segment, entry.path(), ) .unwrap(); } dst.flush().unwrap(); } fn main() { generate_tests(); }