fitbot.yml

# A single CI script with github workflow.
name: Automatic Fit

# start job only for PRs when a label is added.
on:
  pull_request:
    types: [labeled]

# some general variables
env:
  N3FIT_MAXNREP: 20 # total number of replicas to fit
  POSTFIT_NREP: 16 # requested replicas for postfit
  REFERENCE_SET: NNBOT-c0b68779b-2024-05-16 # reference set for exact results
  STABLE_REFERENCE_SET: NNBOT-c0f99b7b3-2024-02-28 # reference set for last tag
  CONDA_PY: 312
  PYTHONHASHSEED: "0"

jobs:
  build:
    # perform build only if PR has run-fit-bot label
    if: contains(github.event.pull_request.labels.*.name, 'run-fit-bot')
    strategy:
      matrix:
        os: [ubuntu-latest]
        python-version: ["3.12"]
    runs-on: ${{ matrix.os }}
    env:
      NETRC_FILE: ${{ secrets.NETRC_FILE }}
    steps:
    - uses: actions/checkout@v4
      with:
        fetch-tags: true
        fetch-depth: 0
    - uses: conda-incubator/setup-miniconda@v3
      with:
        python-version: ${{ matrix.python-version }}
        use-mamba: true
        channels: https://packages.nnpdf.science/public,conda-forge
        show-channel-urls: true
        auto-update-conda: true
    - name: Install SSH key
      uses: shimataro/ssh-key-action@v2
      with:
        key: ${{ secrets.NNPDF_SSA }}
        name: id_rsa
        known_hosts: ${{ secrets.NNPDF_HOSTS_KEY }}
    - name: Setup conda and install conda-build
      shell: bash -l {0}
      run: |
        echo "$NETRC_FILE" | base64 --decode > ~/.netrc
        conda install conda-build --yes
    - name: Build recipe
      shell: bash -l {0}
      run: |
        CONDA_PY=$CONDA_PY conda build --no-test -q conda-recipe
    # install local build
    - name: Installing NNPDF conda package
      shell: bash -l {0}
      run: |
        conda update -n base conda
        conda install -n base conda-libmamba-solver
        conda config --set solver libmamba
        conda create -n nnpdfenv -c file:///usr/share/miniconda/envs/test/conda-bld/linux-64/ nnpdf
    # create fancy runcards
    - name: Preparing fit runcard
      run: |
        # set runcard name
        export COMMIT=`git rev-parse --short HEAD`
        export TIMESTAMP=`date --iso-8601`
        echo "RUNCARD=NNBOT-$COMMIT-$TIMESTAMP" >> $GITHUB_ENV
        echo "RUNFOLDER=n3fit/runcards/examples" >> $GITHUB_ENV
    # downloading theory and t0
    - name: Downloading requirements
      shell: bash -l {0}
      run: |
        conda activate nnpdfenv
        cd $RUNFOLDER
        cp developing.yml $RUNCARD.yml
        vp-setupfit $RUNCARD.yml
    # running n3fit replicas
    - name: Running n3fit
      shell: bash -l {0}
      run: |
        conda activate nnpdfenv
        cd $RUNFOLDER
        for ((i=1; i<=$N3FIT_MAXNREP; i+=1)); do n3fit $RUNCARD.yml $i ; done
    # performing DGLAP
    - name: Running dglap
      shell: bash -l {0}
      run: |
        conda activate nnpdfenv
        cd $RUNFOLDER
        evolven3fit evolve $RUNCARD
    # running postfit
    - name: Postfit and upload fit
      shell: bash -l {0}
      run: |
        conda activate nnpdfenv
        cd $RUNFOLDER
        postfit $POSTFIT_NREP $RUNCARD
        res=$(vp-upload $RUNCARD 2>&1)
        echo ${res}
        while echo ${res} | grep ERROR >/dev/null
        do
          sleep 30s
          res=$(vp-upload $RUNCARD 2>&1)
        done
        url=$( echo "${res}" | grep https )
        echo "FIT_URL=$url" >> $GITHUB_ENV
    # running validphys report
    - name: Building and upload report
      shell: bash -l {0}
      run: |
        conda activate nnpdfenv
        vp-comparefits $RUNCARD $REFERENCE_SET \
                    --title "Automatic check fit $RUNCARD" \
                    --author bot \
                    --keywords run-fit-bot \
                    --thcovmat_if_present
        url=$(vp-upload output/ 2>&1 | grep https)
        echo "REPORT_URL=$url" >> $GITHUB_ENV
        vp-comparefits $RUNCARD $STABLE_REFERENCE_SET \
                     --title "Automatic check fit $RUNCARD with respect to latest tag" \
                     --author bot \
                     --keywords run-fit-bot \
                     --thcovmat_if_present \
                     -o tagged_output
         url=$(vp-upload tagged_output/ 2>&1 | grep https)
         echo "REPORT_URL_STABLE=$url" >> $GITHUB_ENV
    # write reminder
    - name: Write summary on PR
      uses: unsplash/comment-on-pr@master
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        msg: |
          Greetings from your nice fit :robot: !
          I have good news for you, I just finished my tasks:
            - Fit Name: ${{ env.RUNCARD }}
            - Fit Report wrt master: ${{ env.REPORT_URL }}
            - Fit Report wrt latest stable reference: ${{ env.REPORT_URL_STABLE }}
            - Fit Data: ${{ env.FIT_URL }}

          Check the report **carefully**, and please  buy me a :coffee: , or better, a GPU :wink:!