check.yml

name: Check firmware update

on:
  schedule:
    - cron: '0 0 * * *'
  push:
  workflow_dispatch:

jobs:
  update:
    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix:
        include:
          - model: "SM-S911B"
            region: "EUX"
          - model: "SM-S9160"
            region: "TGY"
          - model: "SM-S918B"
            region: "EUX"

    steps:
    - name: Checkout repo
      uses: actions/checkout@v3
      with:
        submodules: true

    - name: Compare latest version with current version
      run: |
       need_update=0
       latest=`curl --retry 5 --retry-delay 5 http://fota-cloud-dn.ospserver.net/firmware/${{ matrix.region }}/${{ matrix.model }}/version.xml | grep latest | sed 's/^[^>]*>//' | sed 's/<.*//'`
       latest_short=`echo $latest | cut -d'/' -f1`
       latest_modem=`echo $latest | cut -d'/' -f3`
       current=`cat current.${{ matrix.model }}` || need_update=1
       [[ $latest != $current ]] && need_update=1
       echo "latest_version=$latest" >> $GITHUB_ENV
       echo "latest_shortversion=$latest_short" >> $GITHUB_ENV
       echo "latest_modemversion=$latest_modem" >> $GITHUB_ENV
       echo "need_update=$need_update" >> $GITHUB_ENV

    - name: Set up Node.js
      if: env.need_update == 1
      uses: actions/setup-node@v4
      with:
        node-version: 'latest'

    - name: Set up Python 3
      if: env.need_update == 1
      uses: actions/setup-python@v5
      with:
        python-version: '3.x'

    - name: Install dependencies
      if: env.need_update == 1
      run: |
          sudo apt-get update
          sudo apt-get install -y liblz4-tool zip openssl
          sudo wget -O /usr/bin/samfirm https://github.com/DavidArsene/samfirm.js/releases/download/v0.3.0/samfirm.js && sudo chmod +x /usr/bin/samfirm

    - name: Fetch firmware
      if: env.need_update == 1
      run: |
       if [[ "${{ matrix.model }}" == "SM-S911B" ]]; then
           imei="352772520002740"
       elif [[ "${{ matrix.model }}" == "SM-S9160" ]]; then
           imei="355267720345327"
       elif [[ "${{ matrix.model }}" == "SM-S918B" ]]; then
           imei="354721880318483"
       fi
       samfirm -m ${{ matrix.model }} -r ${{ matrix.region }} -i $imei

    - name: Get path of files
      if: env.need_update == 1
      run: |
       echo "ap_tar=`find -name AP*`" >> $GITHUB_ENV
       echo "bl_tar=`find -name BL*`" >> $GITHUB_ENV
       echo "cp_tar=`find -name CP*`" >> $GITHUB_ENV

    - name: Check contents of downloaded firmware
      if: env.need_update == 1
      run: |
       tar tvf ${{ env.ap_tar }}
       tar tvf ${{ env.bl_tar }}
       tar tvf ${{ env.cp_tar }} || true

    - name: Extract kernel images
      if: env.need_update == 1
      env:
        FILES: boot.img.lz4 dtbo.img.lz4 init_boot.img.lz4 vendor_boot.img.lz4 recovery.img.lz4
      run: |
        for file in $FILES; do tar xvf ${{ env.ap_tar }} ${file}; done
        tar cvf ${{ env.latest_shortversion }}_kernel.tar *.lz4
        rm *.lz4

    - name: Generate patched vbmeta
      if: env.need_update == 1
      run: |
        tar xvf ${{ env.bl_tar }} vbmeta.img.lz4
        lz4 -d vbmeta.img.lz4 vbmeta.img
        rm vbmeta.img.lz4
        printf "$(printf '\\x%02X' 3)" | dd of="vbmeta.img" bs=1 seek=123 count=1 conv=notrunc &> /dev/null
        tar cvf ${{ env.latest_shortversion }}_patched_vbmeta.tar vbmeta.img
        rm vbmeta.img

    - name: Generate patched fastboot
      if: env.need_update == 1
      run: |
        tar xvf ${{ env.ap_tar }} recovery.img.lz4
        lz4 -d recovery.img.lz4 recovery.img
        git clone https://github.com/engineer4t/fastboot-patcher.git && mv recovery.img ./fastboot-patcher/ && cd fastboot-patcher && ./patcher-minimal
        mv output/output.img ../recovery.img && cd ..
        tar cvf ${{ env.latest_shortversion }}_patched_fastboot.tar recovery.img
        rm -rf fastboot-patcher *.lz4

    - name: Update current version
      if: env.need_update == 1
      run: |
       git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
       git config --local user.name "github-actions[bot]"
       git pull origin ${{github.ref}} --ff-only
       echo ${{ env.latest_version }} > current.${{ matrix.model }}
       git add current.${{ matrix.model }}
       git commit -m "${{ matrix.model }}: ${{ env.latest_version }}"
       git tag ${{ env.latest_shortversion }}

    - name: Push changes to repo
      if: env.need_update == 1
      uses: ad-m/github-push-action@master
      with:
       tags: true
       github_token: ${{ secrets.GITHUB_TOKEN }}

    - name: Upload release assets
      if: env.need_update == 1
      uses: softprops/action-gh-release@v1
      env:
       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
       tag_name: ${{ env.latest_shortversion }}
       files: |
        ${{ env.bl_tar }}
        ${{ env.cp_tar }}
        ${{ env.latest_shortversion }}_kernel.tar
        ${{ env.latest_shortversion }}_patched_vbmeta.tar
        ${{ env.latest_shortversion }}_patched_fastboot.tar