From 4082f9f77567b6b5b61f411d9c08b66853e87a95 Mon Sep 17 00:00:00 2001
From: onur-ozkan <work@onurozkan.dev>
Date: Fri, 16 Aug 2024 21:57:28 +0300
Subject: [PATCH] force `download-rustc=if-unchanged` for x86_64-gnu-tools
 runner

Signed-off-by: onur-ozkan <work@onurozkan.dev>
---
 src/bootstrap/src/core/builder/tests.rs              | 12 ++++++------
 src/bootstrap/src/core/config/config.rs              |  9 ++++-----
 .../docker/host-x86_64/x86_64-gnu-tools/Dockerfile   |  1 +
 src/ci/run.sh                                        |  1 +
 4 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/src/bootstrap/src/core/builder/tests.rs b/src/bootstrap/src/core/builder/tests.rs
index 3d2e3daf915ae..4a96ecf1421d1 100644
--- a/src/bootstrap/src/core/builder/tests.rs
+++ b/src/bootstrap/src/core/builder/tests.rs
@@ -241,12 +241,12 @@ fn ci_rustc_if_unchanged_logic() {
     let compiler_path = build.src.join("compiler");
     let library_path = build.src.join("compiler");
 
-    let commit = get_closest_merge_commit(
-        Some(&builder.config.src),
-        &builder.config.git_config(),
-        &[compiler_path.clone(), library_path.clone()],
-    )
-    .unwrap();
+    let commit =
+        get_closest_merge_commit(Some(&builder.config.src), &builder.config.git_config(), &[
+            compiler_path.clone(),
+            library_path.clone(),
+        ])
+        .unwrap();
 
     let has_changes = !helpers::git(Some(&builder.src))
         .args(["diff-index", "--quiet", &commit])
diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs
index 76e3343e86f0c..9f84b492b80a2 100644
--- a/src/bootstrap/src/core/config/config.rs
+++ b/src/bootstrap/src/core/config/config.rs
@@ -2736,11 +2736,10 @@ impl Config {
 
         // Look for a version to compare to based on the current commit.
         // Only commits merged by bors will have CI artifacts.
-        let commit = get_closest_merge_commit(
-            Some(&self.src),
-            &self.git_config(),
-            &[self.src.join("compiler"), self.src.join("library")],
-        )
+        let commit = get_closest_merge_commit(Some(&self.src), &self.git_config(), &[
+            self.src.join("compiler"),
+            self.src.join("library"),
+        ])
         .unwrap();
         if commit.is_empty() {
             println!("ERROR: could not find commit hash for downloading rustc");
diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile
index 145f41f21e1f4..17fc1a5749299 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile
@@ -84,6 +84,7 @@ ENV RUST_CONFIGURE_ARGS \
   --enable-new-symbol-mangling
 
 ENV HOST_TARGET x86_64-unknown-linux-gnu
+ENV FORCE_CI_RUSTC 1
 
 COPY host-x86_64/dist-x86_64-linux/shared.sh /scripts/
 COPY host-x86_64/dist-x86_64-linux/build-gccjit.sh /scripts/
diff --git a/src/ci/run.sh b/src/ci/run.sh
index 457f36bdd20be..1ce54f9ecb342 100755
--- a/src/ci/run.sh
+++ b/src/ci/run.sh
@@ -55,6 +55,7 @@ fi
 # If runner uses an incompatible option and `FORCE_CI_RUSTC` is not defined,
 # switch to in-tree rustc.
 if [ "$FORCE_CI_RUSTC" == "" ]; then
+    echo "debug: `DISABLE_CI_RUSTC_IF_INCOMPATIBLE` configured."
     DISABLE_CI_RUSTC_IF_INCOMPATIBLE=1
 fi