Add gradle cache to speed up builds

Author: ihor-sviziev

.github/workflows/gradle.yml

@@ -14,13 +14,11 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - &setup-java
-        name: Set up JDK 1.8
+      - name: Set up JDK 1.8
         uses: actions/setup-java@v1
         with:
           java-version: 1.8
-      - &setup-cache
-        uses: actions/cache@v2
+      - uses: actions/cache@v2
         with:
           path: |
             ~/.gradle/caches
@@ -41,8 +39,18 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - *setup-java
-      - *setup-cache
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - uses: actions/cache@v2
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
       - name: Gradle wrapper
         run: gradle wrapper
       - name: Grant execute permission for gradlew
@@ -56,8 +64,18 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - *setup-java
-      - *setup-cache
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - uses: actions/cache@v2
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
       - name: Gradle wrapper
         run: gradle wrapper
       - name: Grant execute permission for gradlew
@@ -71,8 +89,18 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - *setup-java
-      - *setup-cache
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+      - uses: actions/cache@v2
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*') }}
+          restore-keys: |
+            ${{ runner.os }}-gradle-
       - name: Gradle wrapper
         run: gradle wrapper
       - name: Grant execute permission for gradlew