GKI_KernelSU_SUSFS/.github/actions/download-kernel/action.yml

name: 'Download Kernel Repository'
description: 'Initialize and sync Android kernel source repository'

inputs:
  android_version:
    description: 'Android version (e.g., android14)'
    required: true
  kernel_version:
    description: 'Kernel version (e.g., 5.15, 6.1)'
    required: true
  sub_level:
    description: 'Kernel sublevel'
    required: true
  os_patch_level:
    description: 'OS patch level (e.g., 2024-01)'
    required: true
  kernel_root:
    description: 'Path to kernel root directory'
    required: true

outputs:
  kernel_root:
    description: 'Path to the synced kernel root'
    value: ${{ steps.setup.outputs.kernel_root }}
  deprecated_branch:
    description: 'Whether the branch is deprecated'
    value: ${{ steps.sync.outputs.deprecated }}

runs:
  using: composite
  steps:
    - name: Setup Kernel Root Directory
      id: setup
      shell: bash
      run: |
        KERNEL_ROOT="${{ inputs.kernel_root }}"
        mkdir -p "$KERNEL_ROOT"
        echo "kernel_root=$KERNEL_ROOT" >> $GITHUB_OUTPUT
        echo "✓ Created kernel root directory: $KERNEL_ROOT"

    - name: Initialize and Sync Kernel Repository
      id: sync
      shell: bash
      working-directory: ${{ inputs.kernel_root }}
      run: |
        FORMATTED_BRANCH="${{ inputs.android_version }}-${{ inputs.kernel_version }}-${{ inputs.os_patch_level }}"
        
        echo "========================================"
        echo "  Initializing Kernel Repository"
        echo "========================================"
        echo "Branch: common-${FORMATTED_BRANCH}"
        echo "========================================"
        
        repo init -u https://android.googlesource.com/kernel/manifest -b common-${FORMATTED_BRANCH} --depth=1

        # Check if branch is deprecated
        REMOTE_BRANCH=$(git ls-remote https://android.googlesource.com/kernel/common ${FORMATTED_BRANCH})
        DEFAULT_MANIFEST_PATH=.repo/manifests/default.xml
        DEPRECATED=false
        
        if grep -q deprecated <<< $REMOTE_BRANCH; then
          sed -i "s/\"${FORMATTED_BRANCH}\"/\"deprecated\/${FORMATTED_BRANCH}\"/g" $DEFAULT_MANIFEST_PATH
          echo "⚠ Note: Branch ${FORMATTED_BRANCH} is considered deprecated."
          DEPRECATED=true
        fi
        
        echo "deprecated=$DEPRECATED" >> $GITHUB_OUTPUT
        
        echo "========================================"
        echo "  Syncing Kernel Source"
        echo "========================================"
        
        repo --trace sync -c -j$(nproc --all) --fail-fast --no-tags --force-sync --no-clone-bundle
        
        echo "========================================"
        echo "  ✓ Kernel Source Synced Successfully"
        echo "========================================"