From ded575bcf4abb0cc0896ec84b2d744b5f345d30b Mon Sep 17 00:00:00 2001
From: Edward Amsden <edward@blackriversoft.com>
Date: Fri, 8 Dec 2023 16:09:54 -0600
Subject: [PATCH] ci: cache rust dependencies

---
 .github/workflows/ares-shared.yml | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/.github/workflows/ares-shared.yml b/.github/workflows/ares-shared.yml
index 212857ce0..4398d607a 100644
--- a/.github/workflows/ares-shared.yml
+++ b/.github/workflows/ares-shared.yml
@@ -21,6 +21,20 @@ jobs:
         with:
           extra_nix_config: "extra-experimental-features = nix-command flakes"
 
+      - name: Set cache key for dev env
+        run: export ARES_NIX_DEVSHELL_PATH=$(nix eval --raw ".#devShells.x86_64-linux.default.outPath")
+
+      - name: Cache rust build artifacts
+        id: cache_rust
+        uses: Swatinem/rust-cache@v2
+        with:
+          env-vars: "CARGO CC CFLAGX CXX CMAKE RUST ARES"
+          workspaces: "rust/ares -> target"
+
+      - name: Rust cache hit?
+        run: |
+          echo "Rust cache hit: ${{steps.cache_rust.cache-hit}}"
+
       # Check formatting
       - name: Format
         run: |