From f131d6e9454789a16678cdede7378f29bfbdfd81 Mon Sep 17 00:00:00 2001
From: rami3l <rami3l@outlook.com>
Date: Thu, 8 Aug 2024 18:49:41 +0800
Subject: [PATCH] feat(config)!: remove implicit installation from
 `resolve_toolchain()`

---
 src/cli/rustup_mode.rs |  2 +-
 src/config.rs          | 11 ++++++-----
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/cli/rustup_mode.rs b/src/cli/rustup_mode.rs
index 03a64708050..d80bc35e936 100644
--- a/src/cli/rustup_mode.rs
+++ b/src/cli/rustup_mode.rs
@@ -908,7 +908,7 @@ async fn which(
     binary: &str,
     toolchain: Option<ResolvableToolchainName>,
 ) -> Result<utils::ExitCode> {
-    let binary_path = cfg.resolve_toolchain(toolchain).await?.binary_file(binary);
+    let binary_path = cfg.resolve_toolchain(toolchain)?.binary_file(binary);
 
     utils::assert_is_file(&binary_path)?;
 
diff --git a/src/config.rs b/src/config.rs
index f61a3aa91b2..e0f7f9dcbd5 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -709,17 +709,18 @@ impl<'a> Cfg<'a> {
         Ok(Some(Toolchain::new(self, name)?.rustc_version()))
     }
 
-    pub(crate) async fn resolve_toolchain(
+    pub(crate) fn resolve_toolchain(
         &self,
         name: Option<ResolvableToolchainName>,
     ) -> Result<Toolchain<'_>> {
-        Ok(match name {
+        let toolchain = match name {
             Some(name) => {
                 let desc = name.resolve(&self.get_default_host_triple()?)?;
-                Toolchain::new(self, desc.into())?
+                Some(desc.into())
             }
-            None => self.find_or_install_active_toolchain(false).await?.0,
-        })
+            None => None,
+        };
+        self.local_toolchain(toolchain)
     }
 
     pub(crate) fn resolve_local_toolchain(