Rollup merge of #98587 - RalfJung:core-tests, r=thomcc

[rust.git] / src / bootstrap / native.rs

diff --git a/src/bootstrap/native.rs b/src/bootstrap/native.rs
index 18f82d024f87b18a3ca2a1593e1da4efb390c9de..9cd8b6d1455dd2ce6f0ba40aa196e7bb365c0900 100644 (file)
--- a/src/bootstrap/native.rs
+++ b/src/bootstrap/native.rs
@@ -121,7 +121,7 @@ pub(crate) fn maybe_download_ci_llvm(builder: &Builder<'_>) {
     let mut rev_list = Command::new("git");
     rev_list.args(&[
         PathBuf::from("rev-list"),
-        "--author=bors@rust-lang.org".into(),
+        format!("--author={}", builder.config.stage0_metadata.config.git_merge_commit_email).into(),
         "-n1".into(),
         "--first-parent".into(),
         "HEAD".into(),
@@ -150,6 +150,19 @@ pub(crate) fn maybe_download_ci_llvm(builder: &Builder<'_>) {
         for binary in ["llvm-config", "FileCheck"] {
             builder.fix_bin_or_dylib(&llvm_root.join("bin").join(binary));
         }
+
+        // Update the timestamp of llvm-config to force rustc_llvm to be
+        // rebuilt. This is a hacky workaround for a deficiency in Cargo where
+        // the rerun-if-changed directive doesn't handle changes very well.
+        // https://github.com/rust-lang/cargo/issues/10791
+        // Cargo only compares the timestamp of the file relative to the last
+        // time `rustc_llvm` build script ran. However, the timestamps of the
+        // files in the tarball are in the past, so it doesn't trigger a
+        // rebuild.
+        let now = filetime::FileTime::from_system_time(std::time::SystemTime::now());
+        let llvm_config = llvm_root.join("bin").join(exe("llvm-config", builder.config.build));
+        t!(filetime::set_file_times(&llvm_config, now, now));
+
         let llvm_lib = llvm_root.join("lib");
         for entry in t!(fs::read_dir(&llvm_lib)) {
             let lib = t!(entry).path();
@@ -170,11 +183,10 @@ fn download_ci_llvm(builder: &Builder<'_>, llvm_sha: &str) {
     if !rustc_cache.exists() {
         t!(fs::create_dir_all(&rustc_cache));
     }
-    let base = "https://ci-artifacts.rust-lang.org";
-    let url = if llvm_assertions {
-        format!("rustc-builds-alt/{}", llvm_sha)
+    let base = if llvm_assertions {
+        &builder.config.stage0_metadata.config.artifacts_with_llvm_assertions_server
     } else {
-        format!("rustc-builds/{}", llvm_sha)
+        &builder.config.stage0_metadata.config.artifacts_server
     };
     let filename = format!("rust-dev-nightly-{}.tar.xz", builder.build.build.triple);
     let tarball = rustc_cache.join(&filename);
@@ -187,7 +199,11 @@ fn download_ci_llvm(builder: &Builder<'_>, llvm_sha: &str) {
 [llvm]
 download-ci-llvm = false
 ";
-        builder.download_component(base, &format!("{}/{}", url, filename), &tarball, help_on_error);
+        builder.download_component(
+            &format!("{base}/{llvm_sha}/{filename}"),
+            &tarball,
+            help_on_error,
+        );
     }
     let llvm_root = builder.config.ci_llvm_root();
     builder.unpack(&tarball, &llvm_root, "rust-dev");