Try out composite actions

Author: topjohnwu

.github/actions/setup/action.yml

@@ -0,0 +1,44 @@
+name: Magisk Setup
+runs:
+  using: "composite"
+  steps:
+    - name: Set up JDK 17
+      uses: actions/setup-java@v4
+      with:
+        distribution: "temurin"
+        java-version: "17"
+
+    - name: Set up Python 3
+      uses: actions/setup-python@v5
+      with:
+        python-version: "3.x"
+
+    - name: Set up sccache
+      uses: hendrikmuhs/ccache-action@v1.2
+      with:
+        variant: sccache
+        key: ${{ runner.os }}-${{ github.sha }}
+        restore-keys: ${{ runner.os }}
+        max-size: 10000M
+
+    - name: Cache Gradle dependencies
+      uses: actions/cache@v3
+      with:
+        path: |
+          ~/.gradle/caches
+          ~/.gradle/wrapper
+          !~/.gradle/caches/build-cache-*
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle.kts') }}
+        restore-keys: ${{ runner.os }}-gradle-
+
+    - name: Cache build cache
+      uses: actions/cache@v3
+      with:
+        path: |
+          ~/.gradle/caches/build-cache-*
+        key: ${{ runner.os }}-build-cache-${{ github.sha }}
+        restore-keys: ${{ runner.os }}-build-cache-
+
+    - name: Set up NDK
+      run: python build.py -v ndk
+      shell: bash

.github/workflows/build.yml

@@ -32,45 +32,7 @@ jobs:
           submodules: "recursive"
           fetch-depth: 0
 
-      - name: Set up JDK 17
-        uses: actions/setup-java@v4
-        with:
-          distribution: "temurin"
-          java-version: "17"
-
-      - name: Set up Python 3
-        uses: actions/setup-python@v4
-        with:
-          python-version: "3.x"
-
-      - name: Set up sccache
-        uses: hendrikmuhs/ccache-action@v1.2
-        with:
-          variant: sccache
-          key: ${{ runner.os }}-${{ github.sha }}
-          restore-keys: ${{ runner.os }}
-          max-size: 10000M
-
-      - name: Cache Gradle dependencies
-        uses: actions/cache@v3
-        with:
-          path: |
-            ~/.gradle/caches
-            ~/.gradle/wrapper
-            !~/.gradle/caches/build-cache-*
-          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle.kts') }}
-          restore-keys: ${{ runner.os }}-gradle-
-
-      - name: Cache build cache
-        uses: actions/cache@v3
-        with:
-          path: |
-            ~/.gradle/caches/build-cache-*
-          key: ${{ runner.os }}-build-cache-${{ github.sha }}
-          restore-keys: ${{ runner.os }}-build-cache-
-
-      - name: Set up NDK
-        run: python build.py -v ndk
+      - uses: ./.github/actions/setup
 
       - name: Build release
         run: |