use std::env; use std::ffi::OsString; use std::fs::File; use std::io::Write; use std::path::Path; use walkdir::WalkDir; fn dhall_files_in_dir<'a>(dir: &'a Path) -> impl Iterator + 'a { WalkDir::new(dir) .into_iter() .filter_map(|e| e.ok()) .filter_map(move |path| { let path = path.path(); let path = path.strip_prefix(dir).unwrap(); if path.extension() != Some(&OsString::from("dhall")) { return None; } let path = path.to_string_lossy(); let path = path[..path.len() - 6].to_owned(); Some(path) }) } fn main() -> std::io::Result<()> { println!("cargo:rerun-if-changed=../dhall-lang/.git"); println!( "cargo:rerun-if-changed=../.git/modules/dhall-lang/refs/heads/master" ); let out_dir = env::var("OUT_DIR").unwrap(); let tests_dir = Path::new("../dhall-lang/tests/"); let parser_tests_path = Path::new(&out_dir).join("parser_tests.rs"); let mut file = File::create(parser_tests_path)?; for path in dhall_files_in_dir(&tests_dir.join("parser/success/")) { let path = &path[..path.len() - 1]; let name = path.replace("/", "_"); // Skip this test; parser is way too slow indebug mode if name == "largeExpression" { continue; } writeln!( file, r#"make_spec_test!(Parser, Success, success_{}, "{}");"#, name, path )?; } for path in dhall_files_in_dir(&tests_dir.join("parser/failure/")) { let name = path.replace("/", "_"); writeln!( file, r#"make_spec_test!(Parser, Failure, failure_{}, "{}");"#, name, path )?; } Ok(()) }