ci: use ddk for faster ci, manual gki image build

Co-authored-by: Ylarod <me@ylarod.cn>

.github/workflows/build-kernel-a12.yml

@@ -0,0 +1,112 @@
+name: Build Kernel - Android 12
+on:
+  # push:
+  #   branches: ["main", "ci", "checkci"]
+  #   paths:
+  #     - ".github/workflows/deps/gki/build-kernel-a12.yml"
+  #     - ".github/workflows/deps/gki/gki-kernel.yml"
+  #     - ".github/scripts/build_a12.sh"
+  #     - "kernel/**"
+  workflow_call:
+    inputs:
+      debug:
+        description: 'Build debug kernel'
+        required: false
+        type: boolean
+        default: false
+jobs:
+  build-kernel:
+    if: github.event_name != 'pull_request' && github.ref != 'refs/heads/checkci'
+    strategy:
+      matrix:
+        include:
+          - sub_level: 209
+            os_patch_level: 2024-05
+          - sub_level: 218
+            os_patch_level: 2024-08
+          - sub_level: 226
+            os_patch_level: 2024-11
+          - sub_level: 233
+            os_patch_level: 2025-02
+          - sub_level: 236
+            os_patch_level: 2025-05
+    uses: ./.github/workflows/gki-kernel.yml
+    secrets: inherit
+    with:
+      version: android12-5.10
+      version_name: android12-5.10.${{ matrix.sub_level }}
+      tag: android12-5.10-${{ matrix.os_patch_level }}
+      os_patch_level: ${{ matrix.os_patch_level }}
+      patch_path: "5.10"
+      debug: ${{ inputs.debug || false }}
+  
+  upload-artifacts:
+    needs: build-kernel
+    runs-on: ubuntu-latest
+    if: ${{ ( github.event_name != 'pull_request' && github.ref == 'refs/heads/main' ) || github.ref_type == 'tag' || github.ref == 'refs/heads/ci' }}
+    env:
+      CHAT_ID: ${{ secrets.CHAT_ID }}
+      BOT_TOKEN: ${{ secrets.BOT_TOKEN }}
+      MESSAGE_THREAD_ID: ${{ secrets.MESSAGE_THREAD_ID }}
+      COMMIT_MESSAGE: ${{ github.event.head_commit.message }}
+      COMMIT_URL: ${{ github.event.head_commit.url }}
+      RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+
+      - uses: actions/checkout@v4
+        with:
+          path: KernelSU
+          fetch-depth: 0
+
+      - name: List artifacts
+        run: |
+          tree
+
+      - name: Download prebuilt toolchain
+        run: |
+          AOSP_MIRROR=https://android.googlesource.com
+          BRANCH=main-kernel-build-2024
+          git clone $AOSP_MIRROR/platform/prebuilts/build-tools -b $BRANCH --depth 1 build-tools
+          git clone $AOSP_MIRROR/kernel/prebuilts/build-tools -b $BRANCH --depth 1 kernel-build-tools
+          git clone $AOSP_MIRROR/platform/system/tools/mkbootimg -b $BRANCH --depth 1
+          pip3 install telethon
+
+      - name: Set boot sign key
+        env:
+          BOOT_SIGN_KEY: ${{ secrets.BOOT_SIGN_KEY }}
+        run: |
+          if [ ! -z "$BOOT_SIGN_KEY" ]; then
+            echo "$BOOT_SIGN_KEY" > ./kernel-build-tools/linux-x86/share/avb/testkey_rsa2048.pem
+          fi
+
+      - name: Bot session cache
+        id: bot_session_cache
+        uses: actions/cache@v4
+        if: false
+        with:
+          path: scripts/ksubot.session
+          key: ${{ runner.os }}-bot-session
+
+      - name: Build boot images
+        run: |
+          export AVBTOOL=$GITHUB_WORKSPACE/kernel-build-tools/linux-x86/bin/avbtool
+          export GZIP=$GITHUB_WORKSPACE/build-tools/path/linux-x86/gzip
+          export LZ4=$GITHUB_WORKSPACE/build-tools/path/linux-x86/lz4
+          export MKBOOTIMG=$GITHUB_WORKSPACE/mkbootimg/mkbootimg.py
+          export UNPACK_BOOTIMG=$GITHUB_WORKSPACE/mkbootimg/unpack_bootimg.py
+          cd $GITHUB_WORKSPACE/KernelSU
+          export VERSION=$(($(git rev-list --count HEAD) + 10200))
+          echo "VERSION: $VERSION"
+          cd -
+          bash $GITHUB_WORKSPACE/KernelSU/.github/scripts/build_a12.sh
+
+      - name: Display structure of boot files
+        run: ls -R
+
+      - name: Upload images artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: boot-images-android12
+          path: Image-android12*/*.img.gz