Fix actions to use build cache

.github/workflows/docker-compile-master.yml

@@ -13,6 +13,17 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
       - name: Build and push Docker images
         uses: docker/build-push-action@v1
         with:

.github/workflows/docker-compile-tag.yml

@@ -14,6 +14,17 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Cache Docker layers
+        uses: actions/cache@v2
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
       - name: Build and push Docker images
         uses: docker/build-push-action@v1
         with:

.github/workflows/docker-compile.yml

@@ -8,18 +8,29 @@ on:
 env:
   CARGO_TERM_COLOR: always
   SQLX_OFFLINE: true
-
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - name: Build and push Docker images
-        uses: docker/build-push-action@v1
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      -
+        name: Cache Docker layers
+        uses: actions/cache@v2
         with:
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-          registry: docker.pkg.github.com
-          repository: modrinth/labrinth/labrinth
-          tag_with_ref: true
-          tag_with_sha: true
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-
+      - name: Build Docker images
+          uses: docker/build-push-action@v1
+          with:
+            push: false
+            username: ${{ github.actor }}
+            password: ${{ secrets.GITHUB_TOKEN }}
+            registry: docker.pkg.github.com
+            repository: modrinth/labrinth/labrinth
+            tag_with_ref: true
+            tag_with_sha: true