spike: macOS opencv snapshot workflow (headless core/imgproc/imgcodec… #1
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| # TEMP spike: generate a macOS-arm64 (headless core/imgproc/imgcodecs) config | |
| # snapshot for compat.opencv on a real macos-15 runner, then emit the descriptor | |
| # via gen_descriptor.py and upload it as an artifact. Two-phase (like the ffmpeg | |
| # snapshot): this captures + generates; a follow-up build spike validates it. | |
| name: snapshot-macos-opencv | |
| on: | |
| workflow_dispatch: | |
| push: | |
| branches: [spike/opencv-macos-snapshot] | |
| jobs: | |
| snapshot: | |
| runs-on: macos-15 | |
| timeout-minutes: 90 | |
| steps: | |
| - uses: actions/checkout@v4 | |
| - name: install toolchain | |
| run: brew install cmake ninja | |
| - name: fetch + extract OpenCV 5.0.0 | |
| run: | | |
| set -eux | |
| V=5.0.0 | |
| SHA=b0528f5a1d379d59d4701cb28c36e22214cc51cf64594e5b56f2d3e6c0233095 | |
| curl -L -fsS -o opencv.tar.gz "https://github.com/opencv/opencv/archive/refs/tags/$V.tar.gz" | |
| echo "$SHA opencv.tar.gz" | shasum -a 256 -c - | |
| tar -xzf opencv.tar.gz | |
| echo "SRC=$PWD/opencv-$V" >> "$GITHUB_ENV" | |
| - name: cmake configure (headless, aarch64, no external probes) | |
| run: | | |
| set -eux | |
| cmake -G Ninja -S "$SRC" -B bld \ | |
| -DCMAKE_BUILD_TYPE=Release \ | |
| -DBUILD_LIST=core,imgproc,imgcodecs \ | |
| -DBUILD_SHARED_LIBS=OFF \ | |
| -DBUILD_ZLIB=ON -DBUILD_PNG=ON -DBUILD_JPEG=ON \ | |
| -DWITH_TIFF=OFF -DWITH_WEBP=OFF -DWITH_OPENJPEG=OFF -DWITH_JASPER=OFF \ | |
| -DWITH_OPENEXR=OFF -DWITH_AVIF=OFF -DWITH_JPEGXL=OFF -DWITH_IMGCODEC_GIF=OFF \ | |
| -DWITH_OPENCL=OFF -DWITH_IPP=OFF -DWITH_LAPACK=OFF -DWITH_EIGEN=OFF -DWITH_ITT=OFF \ | |
| -DWITH_QT=OFF -DWITH_OPENGL=OFF -DWITH_FFMPEG=OFF -DWITH_GSTREAMER=OFF \ | |
| -DWITH_AVFOUNDATION=OFF -DWITH_V4L=OFF -DWITH_OBSENSOR=OFF \ | |
| -DWITH_PROTOBUF=OFF -DWITH_CAROTENE=OFF -DWITH_FLATBUFFERS=OFF \ | |
| -DWITH_UNIFONT=OFF -DWITH_ADE=OFF \ | |
| -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DBUILD_EXAMPLES=OFF \ | |
| -DBUILD_opencv_apps=OFF -DBUILD_JAVA=OFF -DBUILD_opencv_python3=OFF | |
| - name: reference build (materialize generators; -k keeps going past ICEs) | |
| run: ninja -C bld -k 0 > bld/ninja-build.log 2>&1 || true | |
| - name: dump compile commands + gen descriptor | |
| run: | | |
| set -eux | |
| ninja -C bld -t commands > bld/ninja-cmds.log | |
| python3 tools/compat-opencv/gen_descriptor.py \ | |
| "$SRC" bld 5.0.0 \ | |
| b0528f5a1d379d59d4701cb28c36e22214cc51cf64594e5b56f2d3e6c0233095 \ | |
| compat.opencv.macgen.lua | |
| # retarget the single-platform emission to macosx + a spike name | |
| sed -e 's/^ linux = {{/ macosx = {{/' \ | |
| -e 's/^ linux = {/ macosx = {/' \ | |
| -e 's/name = "compat.opencv"/name = "compat.opencvmac"/' \ | |
| compat.opencv.macgen.lua > compat.opencvmac.lua | |
| echo "=== descriptor head ==="; head -60 compat.opencvmac.lua | |
| echo "=== sanity: aarch64 SIMD dispatch files present? ===" | |
| grep -oE '\.(neon[a-z0-9_]*|fp16)\.cpp' bld/ninja-cmds.log | sort | uniq -c || true | |
| - name: upload artifact | |
| if: always() | |
| uses: actions/upload-artifact@v4 | |
| with: | |
| name: opencv-macos-snapshot | |
| path: | | |
| compat.opencvmac.lua | |
| compat.opencv.macgen.lua | |
| bld/cvconfig.h | |
| bld/cv_cpu_config.h | |
| bld/ninja-cmds.log | |
| bld/ninja-build.log |