rust/build_system/prepare.rs
2022-09-12 10:35:38 +00:00

190 lines
6.1 KiB
Rust

use std::env;
use std::ffi::OsStr;
use std::fs;
use std::path::{Path, PathBuf};
use std::process::Command;
use super::rustc_info::{get_file_name, get_rustc_path, get_rustc_version};
use super::utils::{copy_dir_recursively, spawn_and_wait};
pub(crate) fn prepare() {
prepare_sysroot();
eprintln!("[INSTALL] hyperfine");
Command::new("cargo").arg("install").arg("hyperfine").spawn().unwrap().wait().unwrap();
clone_repo_shallow_github(
"abi-checker",
"Gankra",
"abi-checker",
"4c6dc8c9c687e2b3a760ff2176ce236872b37212",
);
apply_patches("abi-checker", Path::new("abi-checker"));
clone_repo_shallow_github(
"rand",
"rust-random",
"rand",
"0f933f9c7176e53b2a3c7952ded484e1783f0bf1",
);
apply_patches("rand", Path::new("rand"));
clone_repo_shallow_github(
"regex",
"rust-lang",
"regex",
"341f207c1071f7290e3f228c710817c280c8dca1",
);
clone_repo_shallow_github(
"portable-simd",
"rust-lang",
"portable-simd",
"d5cd4a8112d958bd3a252327e0d069a6363249bd",
);
apply_patches("portable-simd", Path::new("portable-simd"));
clone_repo_shallow_github(
"simple-raytracer",
"ebobby",
"simple-raytracer",
"804a7a21b9e673a482797aa289a18ed480e4d813",
);
eprintln!("[LLVM BUILD] simple-raytracer");
let mut build_cmd = Command::new("cargo");
build_cmd.arg("build").env_remove("CARGO_TARGET_DIR").current_dir("simple-raytracer");
spawn_and_wait(build_cmd);
fs::copy(
Path::new("simple-raytracer/target/debug").join(get_file_name("main", "bin")),
Path::new("simple-raytracer").join(get_file_name("raytracer_cg_llvm", "bin")),
)
.unwrap();
}
fn prepare_sysroot() {
let rustc_path = get_rustc_path();
let sysroot_src_orig = rustc_path.parent().unwrap().join("../lib/rustlib/src/rust");
let sysroot_src = env::current_dir().unwrap().join("build_sysroot").join("sysroot_src");
assert!(sysroot_src_orig.exists());
if sysroot_src.exists() {
fs::remove_dir_all(&sysroot_src).unwrap();
}
fs::create_dir_all(sysroot_src.join("library")).unwrap();
eprintln!("[COPY] sysroot src");
copy_dir_recursively(&sysroot_src_orig.join("library"), &sysroot_src.join("library"));
let rustc_version = get_rustc_version();
fs::write(Path::new("build_sysroot").join("rustc_version"), &rustc_version).unwrap();
eprintln!("[GIT] init");
let mut git_init_cmd = Command::new("git");
git_init_cmd.arg("init").arg("-q").current_dir(&sysroot_src);
spawn_and_wait(git_init_cmd);
init_git_repo(&sysroot_src);
apply_patches("sysroot", &sysroot_src);
}
#[allow(dead_code)]
fn clone_repo(target_dir: &str, repo: &str, rev: &str) {
eprintln!("[CLONE] {}", repo);
// Ignore exit code as the repo may already have been checked out
Command::new("git").arg("clone").arg(repo).arg(target_dir).spawn().unwrap().wait().unwrap();
let mut clean_cmd = Command::new("git");
clean_cmd.arg("checkout").arg("--").arg(".").current_dir(target_dir);
spawn_and_wait(clean_cmd);
let mut checkout_cmd = Command::new("git");
checkout_cmd.arg("checkout").arg("-q").arg(rev).current_dir(target_dir);
spawn_and_wait(checkout_cmd);
}
fn clone_repo_shallow_github(target_dir: &str, username: &str, repo: &str, rev: &str) {
if cfg!(windows) {
// Older windows doesn't have tar or curl by default. Fall back to using git.
clone_repo(target_dir, &format!("https://github.com/{}/{}.git", username, repo), rev);
return;
}
let archive_url = format!("https://github.com/{}/{}/archive/{}.tar.gz", username, repo, rev);
let archive_file = format!("{}.tar.gz", rev);
let archive_dir = format!("{}-{}", repo, rev);
eprintln!("[DOWNLOAD] {}/{} from {}", username, repo, archive_url);
// Remove previous results if they exists
let _ = std::fs::remove_file(&archive_file);
let _ = std::fs::remove_dir_all(&archive_dir);
let _ = std::fs::remove_dir_all(target_dir);
// Download zip archive
let mut download_cmd = Command::new("curl");
download_cmd.arg("--location").arg("--output").arg(&archive_file).arg(archive_url);
spawn_and_wait(download_cmd);
// Unpack tar archive
let mut unpack_cmd = Command::new("tar");
unpack_cmd.arg("xf").arg(&archive_file);
spawn_and_wait(unpack_cmd);
// Rename unpacked dir to the expected name
std::fs::rename(archive_dir, target_dir).unwrap();
init_git_repo(Path::new(target_dir));
// Cleanup
std::fs::remove_file(archive_file).unwrap();
}
fn init_git_repo(repo_dir: &Path) {
let mut git_init_cmd = Command::new("git");
git_init_cmd.arg("init").arg("-q").current_dir(repo_dir);
spawn_and_wait(git_init_cmd);
let mut git_add_cmd = Command::new("git");
git_add_cmd.arg("add").arg(".").current_dir(repo_dir);
spawn_and_wait(git_add_cmd);
let mut git_commit_cmd = Command::new("git");
git_commit_cmd.arg("commit").arg("-m").arg("Initial commit").arg("-q").current_dir(repo_dir);
spawn_and_wait(git_commit_cmd);
}
fn get_patches(source_dir: &Path, crate_name: &str) -> Vec<PathBuf> {
let mut patches: Vec<_> = fs::read_dir(source_dir.join("patches"))
.unwrap()
.map(|entry| entry.unwrap().path())
.filter(|path| path.extension() == Some(OsStr::new("patch")))
.filter(|path| {
path.file_name()
.unwrap()
.to_str()
.unwrap()
.split_once("-")
.unwrap()
.1
.starts_with(crate_name)
})
.collect();
patches.sort();
patches
}
fn apply_patches(crate_name: &str, target_dir: &Path) {
for patch in get_patches(&std::env::current_dir().unwrap(), crate_name) {
eprintln!(
"[PATCH] {:?} <- {:?}",
target_dir.file_name().unwrap(),
patch.file_name().unwrap()
);
let mut apply_patch_cmd = Command::new("git");
apply_patch_cmd.arg("am").arg(patch).arg("-q").current_dir(target_dir);
spawn_and_wait(apply_patch_cmd);
}
}