consolidate project configurations to one place #1082

	# SPDX-License-Identifier: BSD-3-Clause
	# Copyright (c) Contributors to the OpenEXR Project.
	#
	# GitHub Actions workflow file
	# https://help.github.com/en/actions/reference/workflow-syntax-for-github-actions

	name: Bazel

	on:
	push:
	# Versioned branches and tags are ignored for OpenEXR <= 1.x.x
	branches-ignore:
	- RB-2.*
	tags-ignore:
	- v1.*
	- v2.*
	# Jobs are skipped when ONLY Markdown (*.md) files are changed
	paths-ignore:
	- '**.md'
	pull_request:
	branches-ignore:
	- RB-2.*
	tags-ignore:
	- v1.*
	- v2.*
	paths-ignore:
	- '**.md'

	permissions:
	contents: read

	jobs:
	build_and_test_ubuntu:
	name: Linux Ubuntu 20.04 Bazel build <GCC 9.3.0>
	runs-on: ubuntu-20.04

	steps:
	- uses: actions/checkout@v3

	- name: Mount Bazel cache
	uses: actions/cache@v3
	with:
	path: "/home/runner/.cache/bazel"
	key: bazel-ubuntu

	- name: Build
	run: \|
	bazelisk build //...

	build_and_test_windows:
	# TODO: switch back to VS 2022 when https://github.com/bazelbuild/bazel/issues/18592 issue is solved
	#name: Windows Server 2022 build <Visual Studio 2022>
	#runs-on: windows-2022
	name: Windows Server 2019 build <Visual Studio 2019>
	runs-on: windows-2019

	steps:
	- uses: actions/checkout@v3

	- name: Mount Bazel cache
	uses: actions/cache@v3
	with:
	path: "/home/runner/.cache/bazel"
	key: bazel-windows

	- name: Build
	run: \|
	bazelisk build //...

	build_and_test_macos:
	name: macOS 12 Bazel build <Apple Clang14>
	runs-on: macos-12

	steps:
	- uses: actions/checkout@v3

	- name: Mount Bazel cache
	uses: actions/cache@v3
	with:
	path: "/home/runner/.cache/bazel"
	key: bazel-macos

	- name: Build
	run: \|
	bazelisk build //...

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