From 7a411e63c819251de4cc5c38936b7983bb39bf6c Mon Sep 17 00:00:00 2001
From: Gregory Szorc <gregory.szorc@gmail.com>
Date: Wed, 19 Jul 2023 19:38:14 -0700
Subject: [PATCH] ci: cache container images to GitHub Actions cache

---
 .github/workflows/linux.yml | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index b4c4a4d0..184a9599 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -60,9 +60,26 @@ jobs:
         with:
           python-version: '3.11'
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Generate Dockerfiles
+        run: |
+          ./build-linux.py --make-target empty
+
       - name: Build Image
+        uses: docker/build-push-action@v4
+        with:
+          file: build/${{ matrix.image }}.Dockerfile
+          cache-from: |
+            type=gha
+          cache-to: |
+            type=gha
+          outputs: |
+            type=tar,dest=build/image-${{ matrix.image }}.tar
+
+      - name: Compress Image
         run: |
-          ./build-linux.py --make-target toolchain-image-${{ matrix.image }}
           zstd -v -T0 -6 --rm build/image-*.tar
 
       - name: Upload Docker Image