Bazel

Merge remote-tracking branch 'upstream/RB-3.1' into RB-3.1 #24

	# 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'

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

	steps:
	- uses: actions/checkout@v2

	- name: Mount bazel cache
	uses: actions/cache@v2
	with:
	path: "/home/runner/.cache/bazel"
	key: bazel

	- name: Install bazelisk
	run: \|
	curl -LO "https://github.com/bazelbuild/bazelisk/releases/download/v1.11.0/bazelisk-linux-amd64"
	mkdir -p "${GITHUB_WORKSPACE}/bin/"
	mv bazelisk-linux-amd64 "${GITHUB_WORKSPACE}/bin/bazel"
	chmod +x "${GITHUB_WORKSPACE}/bin/bazel"

	- name: Build
	run: \|
	"${GITHUB_WORKSPACE}/bin/bazel" build //...

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