From a9c729a1978ee6c3f43704eeef879acbce2f3d73 Mon Sep 17 00:00:00 2001
From: rzvxa <3788964+rzvxa@users.noreply.github.com>
Date: Tue, 13 Aug 2024 17:17:28 +0330
Subject: [PATCH] chore(ci): enforce `msrv` in parts of our CI. (#4879)

closes #4874


![image](https://github.com/user-attachments/assets/98c2650d-54dd-45d9-82ee-0516339ae1f8)
---
 .github/workflows/ci.yml | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 99cce7804..d4d73c0ac 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -67,7 +67,12 @@ jobs:
           RUSTUP_HOME: ${{ env.DEV_DRIVE }}/.rustup
         shell: bash
         run: |
-          sed -i -e 's/profile = "default"/profile = "minimal"/g' rust-toolchain.toml
+          # This `awk` command will find the value of our Minimum Supported Rust Version and store it as `MSRV`.
+          # NOTE: this will fail if there are any other items named `rust-version`. We assume there is only one in our `Cargo.toml`.
+          MSRV=$(awk -F'=' '/rust-version/ {gsub(/[" ]/, "", $2); printf "%s", ($2 + "")}' Cargo.toml)
+          # Set profile to minimal and channel to our Minimum Supported Rust Version.
+          # Running our tests on this channel ensures that our code uses APIs that are supported in our `MSRV`.
+          sed -i -e 's/profile = "default"/profile = "minimal"/g' -e "s/channel = .*/channel = \"$MSRV\"/g" rust-toolchain.toml
           rustup set profile minimal
           rustup show
           git restore .