From 6334f0dde5191498596ed429ca7cd1c22af5cf24 Mon Sep 17 00:00:00 2001
From: Dave Tucker <dave@dtucker.co.uk>
Date: Sat, 1 May 2021 18:06:37 +0100
Subject: [PATCH] ci: Cache Package Builds

This commit adds the default linuxkit cache directory to the
GitHub Actions cache. This will ensure that we don't pull images
that already exist in the cache, or build them if we've already
done so. It should speed up CI.

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>
---
 .github/workflows/ci.yml | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 84c5748e8..2d35335ad 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -103,6 +103,14 @@ jobs:
         sudo ln -s $(pwd)/bin/linuxkit-amd64-linux /usr/local/bin/linuxkit
         /usr/local/bin/linuxkit version
 
+    - name: Cache Packages
+      uses: actions/cache@v2
+      with:
+        path: ~/.linuxkit/cache/
+        key: ${{ runner.os }}-linuxkit-${{ github.sha }}
+        restore-keys: |
+          ${{ runner.os }}-linuxkit-
+    
     - name: Build Packages
       run: |
         make -C pkg build
@@ -149,7 +157,15 @@ jobs:
         chmod ugo+x bin/linuxkit-amd64-linux
         sudo ln -s $(pwd)/bin/linuxkit-amd64-linux /usr/local/bin/linuxkit
         /usr/local/bin/linuxkit version
-
+    
+    - name: Restore Package Cache
+      uses: actions/cache@v2
+      with:
+        path: ~/.linuxkit/cache/
+        key: ${{ runner.os }}-linuxkit-${{ github.sha }}
+        restore-keys: |
+          ${{ runner.os }}-linuxkit-
+ 
     - name: Run Tests
       run: |
           cd test