OCV-DNN-models-update.yaml

name: OCV DNN Models Update

on:
  pull_request:
    branches:
      - main
    paths:
      - '.github/workflows/OCV-DNN-models-update.yaml'
  schedule:
    - cron: '0 23 * * *'

concurrency:
  group: OCV-DNN-models-update-${{ github.ref }}
  cancel-in-progress: true

env:
  DOWNLOAD_DNN_MODELS_FILE: 'download_models.py'

jobs:
  Update:
    runs-on: ${{ matrix.os }}
    defaults:
      run:
        shell: bash
    strategy:
      fail-fast: false
      matrix:
        os: [opencv-cn-lin-x86-64, opencv-cn-lin-arm64, opencv-cn-win, opencv-cn-mac-arm64, opencv-cn-mac-x86-64]
        branch: ['3.4', '4.x', '5.x']
    steps:
      - name: Clean
        run: rm -rf ./* && rm -rf ./.??*
      - name: Clone opencv_extra
        run: git clone --single-branch --branch ${{ matrix.branch }} --reference $GIT_CACHE_PATH/opencv_extra.git https://github.com/opencv/opencv_extra.git opencv_extra
      - name: Update DNN models on Linux / macOS
        if: ${{ matrix.os != 'opencv-cn-win' }}
        timeout-minutes: 60
        run: |
          LATEST_SAVED_HASH=$(cat ${DNN_MODELS}/dnn/latest-hash-${{ matrix.branch }}.txt)
          LATEST_HASH=$(sha256sum opencv_extra/testdata/dnn/${{ env.DOWNLOAD_DNN_MODELS_FILE }} | awk '{print $1}')
          if [[ "$LATEST_SAVED_HASH" == "$LATEST_HASH" ]]; then
            echo "No changes"
          else
            echo "Changes happened. Downloading models:"
            cp opencv_extra/testdata/dnn/${{ env.DOWNLOAD_DNN_MODELS_FILE }} $DNN_MODELS/dnn/${{ matrix.branch }}_${{ env.DOWNLOAD_DNN_MODELS_FILE }}
            cd $DNN_MODELS/dnn
            python3 ${{ matrix.branch }}_${{ env.DOWNLOAD_DNN_MODELS_FILE }}
            echo $LATEST_HASH | tee ${DNN_MODELS}/dnn/latest-hash-${{ matrix.branch }}.txt
          fi
      - name: Update DNN models on Windows
        if: ${{ matrix.os == 'opencv-cn-win' }}
        timeout-minutes: 60
        run: |
          LATEST_SAVED_HASH=$(cat $DNN_MODELS\\dnn\\latest-hash-${{ matrix.branch }}.txt)
          LATEST_HASH=$(sha256sum opencv_extra\\testdata\\dnn\\${{ env.DOWNLOAD_DNN_MODELS_FILE }} | awk '{print $1}')
          if [[ "$LATEST_SAVED_HASH" == "$LATEST_HASH" ]]; then
            echo "No changes"
          else
            echo "Changes happened. Downloading models:"
            cp opencv_extra\\testdata\\dnn\\${{ env.DOWNLOAD_DNN_MODELS_FILE }} $DNN_MODELS\\dnn\\${{ matrix.branch }}_${{ env.DOWNLOAD_DNN_MODELS_FILE }}
            cd $DNN_MODELS\\dnn
            python ${{ matrix.branch }}_${{ env.DOWNLOAD_DNN_MODELS_FILE }}
            echo $LATEST_HASH | tee ${DNN_MODELS}\\dnn\\latest-hash-${{ matrix.branch }}.txt
          fi