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build.rs
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build.rs
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//! The logic that gets executed before building the binary and tests.
//! We use it to auto-generate the Wasm spectests for each of the
//! available compilers.
//!
//! Please try to keep this file as clean as possible.
use std::env;
use std::fs;
use std::path::PathBuf;
use std::process::Command;
use test_generator::{
test_directory, test_directory_module, wasi_processor, wast_processor, with_test_module,
Testsuite,
};
fn main() -> anyhow::Result<()> {
// As rerun-if-changed doesn't support globs, we use another crate
// to check changes in directories.
build_deps::rerun_if_changed_paths("tests/wasi-wast/wasi/unstable/*")
.expect("Can't get directory");
build_deps::rerun_if_changed_paths("tests/wasi-wast/wasi/snapshot1/*")
.expect("Can't get directory");
build_deps::rerun_if_changed_paths("tests/wasi-wast/wasi/nightly-2022-10-18/*")
.expect("Can't get directory");
let out_dir = PathBuf::from(
env::var_os("OUT_DIR").expect("The OUT_DIR environment variable must be set"),
);
// Spectests test generation
{
let mut spectests = Testsuite {
buffer: String::new(),
path: vec![],
};
with_test_module(&mut spectests, "spec", |spectests| {
let _spec_tests = test_directory(spectests, "tests/wast/spec", wast_processor)?;
test_directory_module(
spectests,
"tests/wast/spec/proposals/multi-value",
wast_processor,
)?;
test_directory_module(spectests, "tests/wast/spec/proposals/simd", wast_processor)?;
test_directory_module(
spectests,
"tests/wast/spec/proposals/threads",
wast_processor,
)?;
// test_directory_module(spectests, "tests/wast/spec/proposals/bulk-memory-operations", wast_processor)?;
Ok(())
})?;
with_test_module(&mut spectests, "wasmer", |spectests| {
let _spec_tests = test_directory(spectests, "tests/wast/wasmer", wast_processor)?;
Ok(())
})?;
let spectests_output = out_dir.join("generated_spectests.rs");
fs::write(&spectests_output, spectests.buffer)?;
// Write out our auto-generated tests and opportunistically format them with
// `rustfmt` if it's installed.
// Note: We need drop because we don't want to run `unwrap` or `expect` as
// the command might fail, but we don't care about it's result.
drop(Command::new("rustfmt").arg(&spectests_output).status());
}
// Wasitest test generation
{
let mut wasitests = Testsuite {
buffer: String::new(),
path: vec![],
};
with_test_module(&mut wasitests, "wasitests", |wasitests| {
for wasi_version in &["unstable", "snapshot1", "nightly_2022_10_18"] {
with_test_module(wasitests, wasi_version, |wasitests| {
for (wasi_filesystem_test_name, wasi_filesystem_kind) in &[
("host_fs", "WasiFileSystemKind::Host"),
("mem_fs", "WasiFileSystemKind::InMemory"),
("tmp_fs", "WasiFileSystemKind::Tmp"),
("passthru_fs", "WasiFileSystemKind::PassthruMemory"),
("union_fs", "WasiFileSystemKind::UnionHostMemory"),
("root_fs", "WasiFileSystemKind::RootFileSystemBuilder"),
] {
with_test_module(wasitests, wasi_filesystem_test_name, |wasitests| {
test_directory(
wasitests,
format!("tests/wasi-wast/wasi/{}", wasi_version),
|out, path| wasi_processor(out, path, wasi_filesystem_kind),
)
})?;
}
Ok(())
})?;
}
Ok(())
})?;
let wasitests_output = out_dir.join("generated_wasitests.rs");
fs::write(&wasitests_output, wasitests.buffer)?;
drop(Command::new("rustfmt").arg(&wasitests_output).status());
}
Ok(())
}