Auto merge of #115543 - Kobzol:opt-dist-retry-download, r=Mark-Simulacrum

Retry download of rustc-perf in opt-dist

This should help resolving spurious network errors. It also increases the timeout for the archive download.

r? `@Mark-Simulacrum`

Author: bors

src/tools/opt-dist/src/environment/windows.rs

@@ -1,8 +1,10 @@
 use crate::environment::Environment;
 use crate::exec::cmd;
 use crate::utils::io::move_directory;
+use crate::utils::retry_action;
 use camino::Utf8PathBuf;
 use std::io::Cursor;
+use std::time::Duration;
 use zip::ZipArchive;
 
 pub(super) struct WindowsEnvironment {
@@ -43,7 +45,15 @@ impl Environment for WindowsEnvironment {
         const PERF_COMMIT: &str = "8b2ac3042e1ff2c0074455a0a3618adef97156b1";
 
         let url = format!("https://ci-mirrors.rust-lang.org/rustc/rustc-perf-{PERF_COMMIT}.zip");
-        let response = reqwest::blocking::get(url)?.error_for_status()?.bytes()?.to_vec();
+        let client = reqwest::blocking::Client::builder()
+            .timeout(Duration::from_secs(60 * 2))
+            .connect_timeout(Duration::from_secs(60 * 2))
+            .build()?;
+        let response = retry_action(
+            || Ok(client.get(&url).send()?.error_for_status()?.bytes()?.to_vec()),
+            "Download rustc-perf archive",
+            5,
+        )?;
 
         let mut archive = ZipArchive::new(Cursor::new(response))?;
         archive.extract(self.rustc_perf_dir())?;

src/tools/opt-dist/src/utils/mod.rs

@@ -3,6 +3,7 @@ pub mod io;
 use crate::environment::Environment;
 use crate::utils::io::{delete_directory, get_files_from_dir};
 use humansize::{format_size, BINARY};
+use std::time::Duration;
 use sysinfo::{DiskExt, RefreshKind, System, SystemExt};
 
 pub fn format_env_variables() -> String {
@@ -70,6 +71,24 @@ pub fn with_log_group<F: FnOnce() -> R, R>(group: &str, func: F) -> R {
     }
 }
 
+#[allow(unused)]
+pub fn retry_action<F: Fn() -> anyhow::Result<R>, R>(
+    action: F,
+    name: &str,
+    count: u64,
+) -> anyhow::Result<R> {
+    for attempt in 0..count {
+        match action() {
+            Ok(result) => return Ok(result),
+            Err(error) => {
+                log::error!("Failed to perform action `{name}`, attempt #{attempt}: {error:?}");
+                std::thread::sleep(Duration::from_secs(5));
+            }
+        }
+    }
+    Err(anyhow::anyhow!("Failed to perform action `{name}` after {count} retries"))
+}
+
 fn is_in_ci() -> bool {
     std::env::var("GITHUB_ACTIONS").is_ok()
 }