[TASK] CI, PYPI, initial version

.github/workflows/dt4acc-ci.yml

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+name: dt4acc build
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  wrap_and_build:
+    # Re-generate SWIG wrappers, then build and test
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: [ "3.9", "3.10", "3.11" , "3.12" ]
+        numpy-version : [ "numpy<2.0", # "numpy>=2.0"
+        ]
+    steps:
+      # Checkout the repository contents
+      - name: Checkout dt4acc
+        uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }} ${{ matrix.numpy-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          # numpy-version: ${{ matrix.numpy-version }}
+          cache: 'pip'
+          cache-dependency-path: |
+           **/pyproject.toml
+           **/requirements*.txt
+
+      # Install dependencies
+      - name: Install apt dependencies
+        run: |
+          sudo apt-get install python3-dev python3-pip
+
+      # Install Python dependencies
+      - name: Python dependencies
+        run: |
+          python -m pip install --upgrade pip wheel
+          python -m pip install pytest pycodestyle flake8
+          python -m pip install "${{ matrix.numpy-version }}"
+
+      - name: wheel
+        run: |
+          python -m pip wheel -w wheel/ ./
+
+      - name: install
+        run: |
+          # listing a non existing directory fails ..
+          python -m pip install wheel/pygsl-*.whl
+
+      - name: Lint with flake8
+        run: |
+          # stop the build if there are Python syntax errors or undefined names
+          flake8 pygsl --count --select=E9,F63,F7,F82 --show-source --statistics
+          # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+          flake8 pygsl --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+
+      - name: test
+        run: |
+          # make sure to move out of the source directory
+          cd /tmp
+          python -m pytest -s /home/runner/work/hz-b/dt4acc/tests

.github/workflows/dt4acc-publish.yml

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+name: Publish dt4acc to PyPI and TestPyPI
+
+on: push
+
+jobs:
+  build:
+    name: Build distribution
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+      # meson build needs it at start
+    - name: Set up Python
+      uses: actions/setup-python@v5
+      with:
+        python-version: "3.x"
+    - name: Install pypa/build
+      run:  python3 -m pip install build --user
+    - name: Build a source tarball (wheel would have to be manylinux )
+      run: python3 -m build
+    - name: Store the distribution packages
+      uses: actions/upload-artifact@v4
+      with:
+        name: python-package-distributions
+        path: dist/
+
+  publish-to-pypi:
+    name: Publish pygsl distribution to PyPI
+    if: startsWith(github.ref, 'refs/tags/')  # only publish to PyPI on tag pushes
+    needs:
+    - build
+    runs-on: ubuntu-latest
+    environment:
+      name: pypi
+      url: https://pypi.org/d/dt4acc
+    permissions:
+      id-token: write  # IMPORTANT: mandatory for trusted publishing
+
+    steps:
+    - name: Download all the dists
+      uses: actions/download-artifact@v4
+      with:
+        name: python-package-distributions
+        path: dist/
+    - name: Publish distribution to PyPI
+      uses: pypa/gh-action-pypi-publish@release/v1
+
+  github-release:
+    name: Sign dt4acc with Sigstore and upload them to GitHub Release
+    needs:
+    - publish-to-pypi
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write  # IMPORTANT: mandatory for making GitHub Releases
+      id-token: write  # IMPORTANT: mandatory for sigstore
+
+    steps:
+    - name: Download all the dists
+      uses: actions/download-artifact@v4
+      with:
+        name: python-package-distributions
+        path: dist/
+    - name: Sign the dists with Sigstore
+      uses: sigstore/gh-action-sigstore-python@v3.0.0
+      with:
+        inputs: ./dist/*.tar.gz
+    - name: Create GitHub Release
+      env:
+        GITHUB_TOKEN: ${{ github.token }}
+      run: >-
+        gh release create
+        '${{ github.ref_name }}'
+        --repo '${{ github.repository }}'
+        --notes ""
+    - name: Upload artifact signatures to GitHub Release
+      env:
+        GITHUB_TOKEN: ${{ github.token }}
+      # Upload to GitHub Release using the `gh` CLI.
+      # `dist/` contains the built packages, and the
+      # sigstore-produced signatures and certificates.
+      run: >-
+        gh release upload
+        '${{ github.ref_name }}' dist/**
+        --repo '${{ github.repository }}'
+
+        repository-url: https://test.pypi.org/legacy/

.github/workflows/dt4acc-pypi.yml

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+
+name: dt4acc from PyPI
+on:
+  schedule:
+    #        ┌───────────── minute (0 - 59)
+    #        │ ┌───────────── hour (0 - 23)
+    #        │ │ ┌───────────── day of the month (1 - 31)
+    #        │ │ │ ┌───────────── month (1 - 12 or JAN-DEC)
+    #        │ │ │ │ ┌───────────── day of the week (0 - 6 or SUN-SAT)
+    #        │ │ │ │ │
+    #        │ │ │ │ │
+    #        │ │ │ │ │
+    #        * * * * *
+    - cron: '30 5 * * 0'
+
+jobs:
+  pypi:
+    # Build and test only, use pre-generated SWIG wrappers, install from PyPI
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+
+    steps:
+      # Checkout the repository contents
+      - name: Checkout dt4acc code
+        uses: actions/checkout@v4
+
+      # Setup Python version
+      - name: Setup Python 3.12
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.12
+
+      # Install dependencies
+      - name: Install apt dependencies
+        run: |
+          sudo apt update
+          sudo apt install python3-all-dev
+
+      # Install Python dependencies
+      - name: Python dependencies
+        run: |
+          python -m pip install --upgrade pip wheel
+          python -m pip install pytest pycodestyle 
+
+      - name: install
+        run: |
+          python -m pip install dt4acc
+
+      - name: test
+        run: |
+          # make sure to move out of the source directory
+          cd /tmp
+          python -m pytest -s /home/runner/work/hz-b/dt4acc/tests