From 3af45a19880b8dd246d1595d652073b515f97616 Mon Sep 17 00:00:00 2001
From: Rob Cowsill <42620235+rcowsill@users.noreply.github.com>
Date: Tue, 8 Dec 2020 12:27:25 +0000
Subject: [PATCH] Fix docker layer caching in build workflow

* Only cache docker layers on Linux
* Add target OS name to cache key (futureproofing)
---
 .github/workflows/build.yml | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 62849181..562ea0cd 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,6 +16,10 @@ jobs:
 
       - name: Cache Docker layers
         uses: satackey/action-docker-layer-caching@v0.0.8
+        with:
+          key: docker-layers-linux-{hash}
+          restore-keys: |
+            docker-layers-linux-
         # Ignore the failure of a step and avoid terminating the job.
         continue-on-error: true
 
@@ -38,11 +42,6 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
 
-      - name: Cache Docker layers
-        uses: satackey/action-docker-layer-caching@v0.0.8
-        # Ignore the failure of a step and avoid terminating the job.
-        continue-on-error: true
-
       - name: Build Docker builder image
         run: docker build --build-arg UID=$(id -u) --build-arg GID=$(id -g) -f .github/docker/windows/Dockerfile -t builder .