From afba4c7b14f68d589fee2de515075a339689ee95 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Tj=C3=A4der?= <henrik@tjaders.com>
Date: Sun, 5 Feb 2023 02:07:20 +0100
Subject: [PATCH] Improve build time with Rayon

---
 xtask/Cargo.toml  |  1 +
 xtask/src/main.rs | 17 +++++++++--------
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/xtask/Cargo.toml b/xtask/Cargo.toml
index ba0e134b2f..807741af62 100644
--- a/xtask/Cargo.toml
+++ b/xtask/Cargo.toml
@@ -10,3 +10,4 @@ os_pipe = "1.1.2"
 clap = { version = "4", features = ["derive"] }
 env_logger = "0.10.0"
 log = "0.4.17"
+rayon = "1.6.1"
diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index 47f3980668..01e7934357 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -4,6 +4,7 @@ mod command;
 use anyhow::bail;
 use clap::{Parser, Subcommand};
 use core::fmt;
+use rayon::prelude::*;
 use std::{
     error::Error,
     ffi::OsString,
@@ -308,7 +309,7 @@ fn run_test(
     examples: &[String],
     overwrite: bool,
 ) -> anyhow::Result<()> {
-    for example in examples {
+    examples.into_par_iter().for_each(|example| {
         let cmd = CargoCommand::Build {
             cargoarg: &Some("--quiet"),
             example,
@@ -316,7 +317,7 @@ fn run_test(
             features: DEFAULT_FEATURES,
             mode: BuildMode::Release,
         };
-        arm_example(&cmd, false)?;
+        arm_example(&cmd, false).unwrap();
 
         let cmd = CargoCommand::Run {
             cargoarg,
@@ -326,8 +327,8 @@ fn run_test(
             mode: BuildMode::Release,
         };
 
-        arm_example(&cmd, overwrite)?;
-    }
+        arm_example(&cmd, overwrite).unwrap();
+    });
 
     Ok(())
 }
@@ -338,7 +339,7 @@ fn build_and_check_size(
     examples: &[String],
     size_arguments: &Option<Sizearguments>,
 ) -> anyhow::Result<()> {
-    for example in examples {
+    examples.into_par_iter().for_each(|example| {
         // Make sure the requested example(s) are built
         let cmd = CargoCommand::Build {
             cargoarg: &Some("--quiet"),
@@ -347,7 +348,7 @@ fn build_and_check_size(
             features: DEFAULT_FEATURES,
             mode: BuildMode::Release,
         };
-        arm_example(&cmd, false)?;
+        arm_example(&cmd, false).unwrap();
 
         let cmd = CargoCommand::Size {
             cargoarg,
@@ -357,8 +358,8 @@ fn build_and_check_size(
             mode: BuildMode::Release,
             arguments: size_arguments.clone(),
         };
-        arm_example(&cmd, false)?;
-    }
+        arm_example(&cmd, false).unwrap();
+    });
 
     Ok(())
 }