From f56b79f00d0c5f7df5f506c385e81525cf034cdc Mon Sep 17 00:00:00 2001
From: Sergey Kuznetsov <skuznetsov@ripple.com>
Date: Tue, 21 Jul 2026 13:39:37 +0000
Subject: [PATCH] ci: Add cargo to pre-commit image (#7835)

---
 .github/workflows/build-pre-commit-image.yml |  2 ++
 bin/pre-commit/Dockerfile                    | 16 ++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/.github/workflows/build-pre-commit-image.yml b/.github/workflows/build-pre-commit-image.yml
index 1d0a479846..9b20dc7951 100644
--- a/.github/workflows/build-pre-commit-image.yml
+++ b/.github/workflows/build-pre-commit-image.yml
@@ -7,10 +7,12 @@ on:
     paths:
       - ".github/workflows/build-pre-commit-image.yml"
       - "bin/pre-commit/Dockerfile"
+      - "rust-toolchain.toml"
   pull_request:
     paths:
       - ".github/workflows/build-pre-commit-image.yml"
       - "bin/pre-commit/Dockerfile"
+      - "rust-toolchain.toml"
   workflow_dispatch:
 
 concurrency:
diff --git a/bin/pre-commit/Dockerfile b/bin/pre-commit/Dockerfile
index 3e803297ce..a96f3e4c25 100644
--- a/bin/pre-commit/Dockerfile
+++ b/bin/pre-commit/Dockerfile
@@ -37,3 +37,19 @@ ENV NIX_SSL_CERT_FILE="/nix/var/nix/profiles/default/etc/ssl/certs/ca-bundle.crt
 
 # Verify nix installation
 RUN nix --version
+
+ENV RUSTUP_HOME="/opt/rust/rustup"
+ENV CARGO_HOME="/opt/rust/cargo"
+ENV PATH="/opt/rust/cargo/bin:${PATH}"
+
+WORKDIR /tmp
+COPY rust-toolchain.toml /tmp/rust-toolchain.toml
+RUN <<EOF
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
+    | sh -s -- -y --no-modify-path --profile minimal --default-toolchain none
+rustup toolchain install
+rustup show
+cargo fmt --version
+EOF
+
+WORKDIR /