refactor: More directory layout refactoring #12285

	name: Build and test PR (changed APIs only)

	on: [pull_request]

	jobs:

	build:
	runs-on: ubuntu-latest
	env:
	DOTNET_NOLOGO: true
	strategy:
	matrix:
	regex: ["'Google\\.Cloud\\.[A-L].'", "'Google\\.Cloud\\.[M-Z].'", "'!Google\\.Cloud'"]

	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	fetch-depth: 100

	- name: Setup .NET 6.0
	uses: actions/setup-dotnet@v4
	with:
	dotnet-version: 6.0.x

	# The GitHub checkout action leaves the repo in a slightly awkward
	# state. This tidies it up.
	- name: Set up git branches
	run: \|
	git checkout -b pr-head
	git checkout -b main ${{ github.event.pull_request.base.sha }}
	git checkout pr-head

	- name: Detect CRLF files
	run: \|
	! git ls-files --eol \| grep -e i/crlf -e i/mixed

	- name: Build and test
	run: \|
	touch build_timing_log.txt
	./build.sh --diff --regex ${{ matrix.regex }}
	./processbuildtiminglog.sh

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