task: coverity scanning

.github/workflows/coverity.yml

@@ -0,0 +1,80 @@
+name: Coverity Scan
+
+on:
+  schedule:
+    - cron: "0 1 * * 1"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: coverity-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  COVERITY_PROJECT: IntelPython/mkl_fft
+
+jobs:
+  coverity-scan:
+    if: github.repository == 'IntelPython/mkl_fft'
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+
+      - name: Setup Python
+        uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
+        with:
+          python-version: "3.12"
+          architecture: x64
+
+      - name: Install mkl_fft dependencies
+        run: pip install meson-python ninja cmake cython "numpy>=2" mkl-devel
+
+      - name: Download Coverity Build Tool
+        timeout-minutes: 15
+        env:
+          COVERITY_SCAN_TOKEN: ${{ secrets.COVERITY_SCAN_TOKEN }}
+        run: |
+          curl --location --no-progress-meter --fail-with-body \
+               --retry 5 --retry-connrefused --retry-delay 5 \
+               --data-urlencode "token=${COVERITY_SCAN_TOKEN}" \
+               --data-urlencode "project=${COVERITY_PROJECT}" \
+               --output cov-analysis.tar.gz \
+               https://scan.coverity.com/download/linux64
+          mkdir -p cov-analysis
+          tar -xzf cov-analysis.tar.gz --strip 1 -C cov-analysis
+          echo "${PWD}/cov-analysis/bin" >> "$GITHUB_PATH"
+
+      - name: Configure Coverity for GCC
+        run: cov-configure --gcc
+
+      - name: Build under cov-build
+        timeout-minutes: 20
+        run: |
+          rm -rf build
+          cov-build --dir cov-int pip install -e . --no-build-isolation --no-deps 2>&1 | tee cov-build.log
+          if ! grep -qE "Emitted [1-9][0-9]* .*compilation unit" cov-build.log; then
+            echo "::error::Coverity captured 0 compilation units — the C build did not run under cov-build."
+            exit 1
+          fi
+
+      - name: Submit results to Coverity Scan
+        timeout-minutes: 15
+        env:
+          COVERITY_SCAN_TOKEN: ${{ secrets.COVERITY_SCAN_TOKEN }}
+          COVERITY_SCAN_EMAIL: ${{ secrets.COVERITY_SCAN_EMAIL }}
+        run: |
+          tar -czf cov-int.tgz cov-int
+          curl --no-progress-meter --fail-with-body \
+               --retry 5 --retry-connrefused --retry-delay 5 \
+               --form token="${COVERITY_SCAN_TOKEN}" \
+               --form email="${COVERITY_SCAN_EMAIL}" \
+               --form file=@cov-int.tgz \
+               --form version="${GITHUB_SHA}" \
+               --form description="GitHub Actions ${GITHUB_REF_NAME} (run ${GITHUB_RUN_ID})" \
+               --form project="${COVERITY_PROJECT}" \
+               https://scan.coverity.com/builds

README.md

@@ -2,6 +2,7 @@
 [![Editable build using pip and pre-release NumPy](https://github.com/IntelPython/mkl_fft/actions/workflows/build_pip.yml/badge.svg)](https://github.com/IntelPython/mkl_fft/actions/workflows/build_pip.yml)
 [![Conda package with conda-forge channel only](https://github.com/IntelPython/mkl_fft/actions/workflows/conda-package-cf.yml/badge.svg)](https://github.com/IntelPython/mkl_fft/actions/workflows/conda-package-cf.yml)
 [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/IntelPython/mkl_fft/badge)](https://securityscorecards.dev/viewer/?uri=github.com/IntelPython/mkl_fft)
+[![Coverity Scan Build Status](https://scan.coverity.com/projects/33202/badge.svg)](https://scan.coverity.com/projects/intelpython-mkl_fft)
 
 ## `mkl_fft` --  a NumPy-based Python interface to Intel® oneAPI Math Kernel Library (oneMKL) Fourier Transform Functions