ci.yaml

name: ci

on:
  push:
    branches:
      - "main"
      - "master"
      - "releases/**"
    tags:
      - "*"
  pull_request:
    types: [opened, synchronize, reopened]

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v3

      - name: Get branch name (merge)
        if: github.event_name != 'pull_request'
        shell: bash
        run: echo "BRANCH_NAME=${GITHUB_REF#refs/heads/}" >> $GITHUB_ENV

      - name: Get branch name (pull request)
        if: github.event_name == 'pull_request'
        shell: bash
        run: echo "BRANCH_NAME=${GITHUB_HEAD_REF}" >> $GITHUB_ENV

      - name: Debug
        run: echo ${{ env.BRANCH_NAME }}

      - name: Set TAG
        shell: bash
        run: |
          export TAG
          set -x
          gitRefType="${{ github.ref_type }}"
          if test "tag" == "${gitRefType}" ; then
            gitTag="${{ github.ref_name }}"
            echo "Pipeline triggered by a tag ${gitTag}"
            TAG="${gitTag}"
          elif test "branch" == "${gitRefType}" ; then
            gitBranch="${BRANCH_NAME}"
            echo "Pipeline triggered by a branch ${gitBranch}"
            if test "master" == "${gitBranch}" || test "main" == "${gitBranch}" ; then
              # main/master branch are special and called latest.
              TAG=latest
            else
              # Replaces all characters with issues and lowercasing.
              TAG=$( echo "${gitBranch}" | sed -e 's,[^a-zA-Z0-9_.\-],-,g' | tr '[:upper:]' '[:lower:]' )
            fi
          else
            echo "Unknown github.ref_type: ${github.ref_type}." >&2
            exit 11
          fi
          echo TAG set to $TAG
          # https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#setting-an-environment-variable
          echo "TAG=${TAG}" >> $GITHUB_ENV
      - name: Show TAG
        shell: bash
        run: |
          set -x
          echo "TAG: ${TAG}"
          env | grep TAG
      -
        name: Login to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
      -
        name: Build and push
        uses: docker/build-push-action@v3
        with:
          context: ./container_docker
          file: ./container_docker/Dockerfile
          push: true
          tags: ${{ secrets.DOCKERHUB_USERNAME }}/cnes-lisa-globalfit1-idasoft:${{ env.TAG }}
          # https://depot.dev/blog/docker-layer-caching-in-github-actions
          cache-from: type=gha
          cache-to: type=gha,mode=max