Setup GitHub Actions

Author: dalcinl

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: weekly

.github/workflows/ci.yml

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+name: ci
+
+on:  # yamllint disable-line rule:truthy
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
+permissions:
+  contents: read
+
+jobs:
+
+
+  cmake:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-22.04
+          - ubuntu-20.04
+          - macos-14
+          - macos-13
+    steps:
+    - uses: actions/checkout@v4
+    - run:  bash -x build-cmake.sh
+    - run:  bash check.sh
+
+  meson:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-22.04
+          - ubuntu-20.04
+          - macos-14
+          - macos-13
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-python@v5
+      with: {python-version: '3.x'}
+    - run:  python -m pip install meson ninja
+    - run:  bash -x build-meson.sh
+    - run:  bash check.sh
+
+  make:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-22.04
+          - ubuntu-20.04
+          - macos-14
+          - macos-13
+    steps:
+    - uses: actions/checkout@v4
+    - run:  make
+    - run:  bash check.sh

check.sh

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+#!/bin/bash
+set -euo pipefail
+
+prefix=${PREFIX:-$PWD}
+export PATH=${prefix}/bin:$PATH
+
+case "$(uname)" in
+    Linux)
+        so=".so"
+        ;;
+    Darwin)
+        ldd () { otool -L "$1"; }
+        so=".dylib"
+        ;;
+esac
+
+tempdir="$(mktemp -d)"
+trap 'rm -rf $tempdir' EXIT
+cd "$tempdir" || exit
+
+cat > helloworld.c << EOF
+#include <mpi.h>
+#include <stdio.h>
+int main(int argc, char *argv[])
+{
+  int size, rank, len;
+  char name[MPI_MAX_PROCESSOR_NAME];
+
+  MPI_Init(&argc, &argv);
+  MPI_Comm_size(MPI_COMM_WORLD, &size);
+  MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+  MPI_Get_processor_name(name, &len);
+  printf("Hello, World! I am process %d of %d on %s.\n", rank, size, name);
+  MPI_Finalize();
+  return 0;
+}
+EOF
+ln -s helloworld.c helloworld.cxx
+
+command -v mpicc
+command -v mpicxx
+echo "$(mpicc -show-incdir)/mpi.h":
+grep -E 'MPI_(SUB)?VERSION' "$(mpicc -show-incdir)/mpi.h"
+echo "$(mpicc -show-libdir)/lib$(mpicc -show-libs)$so":
+ldd "$(mpicc -show-libdir)/lib$(mpicc -show-libs)$so"
+
+set -x
+
+RPATH=-Wl,-rpath,$(mpicc -show-libdir)
+
+mpicc -show
+mpicc -show-incdir
+mpicc -show-libdir
+mpicc -show-libs
+for cc in gcc clang; do
+    "$cc" -v > cc.log 2>&1
+    mpicc -cc="$cc" -v > mpicc.log 2>&1
+    diff cc.log mpicc.log
+    mpicc -cc="$cc" ./helloworld.c -c
+    test -f helloworld.o && rm helloworld.o
+    mpicc -cc="$cc" ./helloworld.c "$RPATH"
+    ldd a.out && rm a.out
+done
+
+mpicxx -show
+mpicxx -show-incdir
+mpicxx -show-libdir
+mpicxx -show-libs
+for cxx in g++ clang++; do
+    "$cxx" -v  > cxx.log 2>&1
+    mpicxx -cxx="$cxx" -v  > mpicxx.log 2>&1
+    diff cxx.log mpicxx.log
+    mpicxx -cxx="$cxx" ./helloworld.cxx -c
+    test -f helloworld.o && rm helloworld.o
+    mpicxx -cxx="$cxx" ./helloworld.cxx "$RPATH"
+    ldd a.out && rm a.out
+done