From 323284bb896d45f754120d90eb2e8aa1e1bdfa3d Mon Sep 17 00:00:00 2001
From: DaniPopes <57450786+DaniPopes@users.noreply.github.com>
Date: Mon, 20 Nov 2023 13:17:23 +0100
Subject: [PATCH] ci: add MSRV lint job

---
 .github/workflows/lint.yml | 23 +++++++++++++++++++++++
 Cargo.toml                 |  2 +-
 README.md                  |  7 +++++++
 3 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 61a28bcb777b..60341fcb805b 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -32,6 +32,29 @@ jobs:
         env:
           RUSTFLAGS: -D warnings
 
+  msrv:
+    name: MSRV / ${{ matrix.network }}
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    strategy:
+      matrix:
+        include:
+          - binary: reth
+            network: ethereum
+          - binary: op-reth
+            network: optimism
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: "1.70" # MSRV
+      - uses: Swatinem/rust-cache@v2
+        with:
+          cache-on-failure: true
+      - run: cargo build --bin "${{ matrix.binary }}" --workspace --features "${{ matrix.network }}"
+        env:
+          RUSTFLAGS: -D warnings
+
   docs:
     name: docs
     runs-on: ubuntu-latest
diff --git a/Cargo.toml b/Cargo.toml
index d0bbf106e879..494015c7fe33 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -64,7 +64,7 @@ resolver = "2"
 [workspace.package]
 version = "0.1.0-alpha.10"
 edition = "2021"
-rust-version = "1.70" # Remember to update clippy.toml and README.md
+rust-version = "1.70"
 license = "MIT OR Apache-2.0"
 homepage = "https://paradigmxyz.github.io/reth"
 repository = "https://github.com/paradigmxyz/reth"
diff --git a/README.md b/README.md
index 8dd1c987d7a4..910a7cf401d2 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,13 @@ If you want to contribute, or follow along with contributor discussion, you can
 
 ### Building and testing
 
+<!--
+When updating this, also update:
+- clippy.toml
+- Cargo.toml
+- .github/workflows/lint.yml
+-->
+
 The Minimum Supported Rust Version (MSRV) of this project is [1.70.0](https://blog.rust-lang.org/2023/06/01/Rust-1.70.0.html).
 
 See the book for detailed instructions on how to [build from source](https://paradigmxyz.github.io/reth/installation/source.html).