mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-05 21:24:12 +00:00
234 lines
7.4 KiB
Rust
234 lines
7.4 KiB
Rust
use std::env;
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use std::ffi::OsStr;
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use std::fs;
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use std::path::{Path, PathBuf};
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use std::process::Command;
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use super::rustc_info::{get_file_name, get_rustc_path, get_rustc_version};
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use super::utils::{cargo_command, copy_dir_recursively, spawn_and_wait};
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pub(crate) const ABI_CAFE: GitRepo =
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GitRepo::github("Gankra", "abi-cafe", "4c6dc8c9c687e2b3a760ff2176ce236872b37212", "abi-cafe");
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pub(crate) const RAND: GitRepo =
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GitRepo::github("rust-random", "rand", "0f933f9c7176e53b2a3c7952ded484e1783f0bf1", "rand");
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pub(crate) const REGEX: GitRepo =
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GitRepo::github("rust-lang", "regex", "341f207c1071f7290e3f228c710817c280c8dca1", "regex");
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pub(crate) const PORTABLE_SIMD: GitRepo = GitRepo::github(
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"rust-lang",
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"portable-simd",
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"d5cd4a8112d958bd3a252327e0d069a6363249bd",
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"portable-simd",
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);
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pub(crate) const SIMPLE_RAYTRACER: GitRepo = GitRepo::github(
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"ebobby",
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"simple-raytracer",
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"804a7a21b9e673a482797aa289a18ed480e4d813",
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"<none>",
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);
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pub(crate) fn prepare() {
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if Path::new("download").exists() {
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std::fs::remove_dir_all(Path::new("download")).unwrap();
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}
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std::fs::create_dir_all(Path::new("download")).unwrap();
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prepare_sysroot();
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// FIXME maybe install this only locally?
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eprintln!("[INSTALL] hyperfine");
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Command::new("cargo").arg("install").arg("hyperfine").spawn().unwrap().wait().unwrap();
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ABI_CAFE.fetch();
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RAND.fetch();
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REGEX.fetch();
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PORTABLE_SIMD.fetch();
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SIMPLE_RAYTRACER.fetch();
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eprintln!("[LLVM BUILD] simple-raytracer");
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let build_cmd = cargo_command("cargo", "build", None, &SIMPLE_RAYTRACER.source_dir());
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spawn_and_wait(build_cmd);
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fs::copy(
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SIMPLE_RAYTRACER
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.source_dir()
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.join("target")
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.join("debug")
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.join(get_file_name("main", "bin")),
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SIMPLE_RAYTRACER.source_dir().join(get_file_name("raytracer_cg_llvm", "bin")),
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)
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.unwrap();
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}
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fn prepare_sysroot() {
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let rustc_path = get_rustc_path();
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let sysroot_src_orig = rustc_path.parent().unwrap().join("../lib/rustlib/src/rust");
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let sysroot_src = env::current_dir().unwrap().join("build_sysroot").join("sysroot_src");
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assert!(sysroot_src_orig.exists());
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if sysroot_src.exists() {
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fs::remove_dir_all(&sysroot_src).unwrap();
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}
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fs::create_dir_all(sysroot_src.join("library")).unwrap();
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eprintln!("[COPY] sysroot src");
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copy_dir_recursively(&sysroot_src_orig.join("library"), &sysroot_src.join("library"));
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let rustc_version = get_rustc_version();
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fs::write(Path::new("build_sysroot").join("rustc_version"), &rustc_version).unwrap();
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eprintln!("[GIT] init");
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let mut git_init_cmd = Command::new("git");
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git_init_cmd.arg("init").arg("-q").current_dir(&sysroot_src);
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spawn_and_wait(git_init_cmd);
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init_git_repo(&sysroot_src);
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apply_patches("sysroot", &sysroot_src);
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}
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pub(crate) struct GitRepo {
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url: GitRepoUrl,
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rev: &'static str,
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patch_name: &'static str,
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}
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enum GitRepoUrl {
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Github { user: &'static str, repo: &'static str },
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}
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impl GitRepo {
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const fn github(
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user: &'static str,
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repo: &'static str,
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rev: &'static str,
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patch_name: &'static str,
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) -> GitRepo {
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GitRepo { url: GitRepoUrl::Github { user, repo }, rev, patch_name }
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}
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pub(crate) fn source_dir(&self) -> PathBuf {
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match self.url {
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GitRepoUrl::Github { user: _, repo } => {
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std::env::current_dir().unwrap().join("download").join(repo)
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}
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}
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}
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fn fetch(&self) {
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match self.url {
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GitRepoUrl::Github { user, repo } => {
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clone_repo_shallow_github(&self.source_dir(), user, repo, self.rev);
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}
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}
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apply_patches(self.patch_name, &self.source_dir());
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}
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}
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#[allow(dead_code)]
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fn clone_repo(download_dir: &Path, repo: &str, rev: &str) {
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eprintln!("[CLONE] {}", repo);
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// Ignore exit code as the repo may already have been checked out
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Command::new("git").arg("clone").arg(repo).arg(&download_dir).spawn().unwrap().wait().unwrap();
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let mut clean_cmd = Command::new("git");
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clean_cmd.arg("checkout").arg("--").arg(".").current_dir(&download_dir);
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spawn_and_wait(clean_cmd);
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let mut checkout_cmd = Command::new("git");
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checkout_cmd.arg("checkout").arg("-q").arg(rev).current_dir(download_dir);
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spawn_and_wait(checkout_cmd);
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}
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fn clone_repo_shallow_github(download_dir: &Path, user: &str, repo: &str, rev: &str) {
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if cfg!(windows) {
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// Older windows doesn't have tar or curl by default. Fall back to using git.
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clone_repo(download_dir, &format!("https://github.com/{}/{}.git", user, repo), rev);
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return;
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}
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let downloads_dir = std::env::current_dir().unwrap().join("download");
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let archive_url = format!("https://github.com/{}/{}/archive/{}.tar.gz", user, repo, rev);
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let archive_file = downloads_dir.join(format!("{}.tar.gz", rev));
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let archive_dir = downloads_dir.join(format!("{}-{}", repo, rev));
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eprintln!("[DOWNLOAD] {}/{} from {}", user, repo, archive_url);
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// Remove previous results if they exists
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let _ = std::fs::remove_file(&archive_file);
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let _ = std::fs::remove_dir_all(&archive_dir);
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let _ = std::fs::remove_dir_all(&download_dir);
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// Download zip archive
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let mut download_cmd = Command::new("curl");
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download_cmd.arg("--location").arg("--output").arg(&archive_file).arg(archive_url);
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spawn_and_wait(download_cmd);
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// Unpack tar archive
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let mut unpack_cmd = Command::new("tar");
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unpack_cmd.arg("xf").arg(&archive_file).current_dir(downloads_dir);
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spawn_and_wait(unpack_cmd);
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// Rename unpacked dir to the expected name
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std::fs::rename(archive_dir, &download_dir).unwrap();
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init_git_repo(&download_dir);
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// Cleanup
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std::fs::remove_file(archive_file).unwrap();
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}
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fn init_git_repo(repo_dir: &Path) {
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let mut git_init_cmd = Command::new("git");
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git_init_cmd.arg("init").arg("-q").current_dir(repo_dir);
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spawn_and_wait(git_init_cmd);
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let mut git_add_cmd = Command::new("git");
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git_add_cmd.arg("add").arg(".").current_dir(repo_dir);
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spawn_and_wait(git_add_cmd);
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let mut git_commit_cmd = Command::new("git");
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git_commit_cmd.arg("commit").arg("-m").arg("Initial commit").arg("-q").current_dir(repo_dir);
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spawn_and_wait(git_commit_cmd);
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}
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fn get_patches(source_dir: &Path, crate_name: &str) -> Vec<PathBuf> {
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let mut patches: Vec<_> = fs::read_dir(source_dir.join("patches"))
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.unwrap()
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.map(|entry| entry.unwrap().path())
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.filter(|path| path.extension() == Some(OsStr::new("patch")))
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.filter(|path| {
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path.file_name()
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.unwrap()
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.to_str()
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.unwrap()
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.split_once("-")
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.unwrap()
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.1
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.starts_with(crate_name)
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})
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.collect();
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patches.sort();
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patches
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}
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fn apply_patches(crate_name: &str, target_dir: &Path) {
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if crate_name == "<none>" {
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return;
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}
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for patch in get_patches(&std::env::current_dir().unwrap(), crate_name) {
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eprintln!(
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"[PATCH] {:?} <- {:?}",
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target_dir.file_name().unwrap(),
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patch.file_name().unwrap()
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);
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let mut apply_patch_cmd = Command::new("git");
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apply_patch_cmd.arg("am").arg(patch).arg("-q").current_dir(target_dir);
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spawn_and_wait(apply_patch_cmd);
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}
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}
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