name: Build

on: [push, pull_request]

jobs:
  build:
    runs-on: ubuntu-latest

    defaults:
      run:
        shell: sh

    strategy:
      matrix:
        # support 9.5 and later (9.4 doesn't have regrole)
        pgversion:  [ 9.5, 9.6, 10, 11, 12, 13, 14, 15, 16 ]

    env:
      PGVERSION: ${{ matrix.pgversion }}

    steps:
    - name: checkout
      uses: actions/checkout@v2

    - name: install pg
      run: |
        sudo /usr/share/postgresql-common/pgdg/apt.postgresql.org.sh -v $PGVERSION -p -i
        sudo -u postgres createuser -s "$USER"

    - name: build
      run: |
        make PROFILE="-Werror"
        sudo -E make install

    - name: test
      run: |
        make installcheck

    - name: show regression diffs
      if: ${{ failure() }}
      run: |
        cat regression.diffs