Create build-and-test GitHub workflow #1

	name: Build and Test

	on:
	pull_request:
	types: [opened, reopened]
	branches-ignore:
	- 'gh-pages'

	permissions:
	- contents: read
Check failure on line 10 in .github/workflows/build_and_test.yml View workflow run for this annotation GitHub Actions / Build and Test Invalid workflow file `The workflow is not valid. .github/workflows/build_and_test.yml (Line: 10, Col: 3): A sequence was not expected` Check failure on line 10 in .github/workflows/build_and_test.yml View workflow run for this annotation GitHub Actions / Build and Test Invalid workflow file `The workflow is not valid. .github/workflows/build_and_test.yml (Line: 10, Col: 3): A sequence was not expected`

	jobs:
	plain_makefile:
	name: Build and test using plain Makefile
	runs-on: 'ubuntu-20.04'
	steps:
	- name: Build environment setup
	run: \|
	echo 'Nothing to do.'
	echo 'GitHub runner includes tools we need already.'
	- uses: actions/checkout@v4
	- name: Build (make all)
	run: \|
	make all
	- name: Test (./tests.sh)
	run: \|
	./tests.sh

Provide feedback