SEC-090: Automated trusted workflow pinning (2024-05-13) #234

	# Continuous integration handling for Protocol Buffers
	name: ci-protobuf

	on:
	pull_request:
	paths:
	- .github/workflows/ci-protobuf.yml
	- go.mod
	- go.sum
	- 'tfprotov5/internal/tfplugin5/*'
	- 'tfprotov6/internal/tfplugin6/*'
	- tools/go.mod
	- tools/go.sum

	permissions:
	contents: read

	jobs:
	protoc:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
	- uses: actions/setup-go@cdcb36043654635271a94b9a6d1392de5bb323a7 # v5.0.1
	with:
	go-version-file: 'go.mod'
	- uses: arduino/setup-protoc@c65c819552d16ad3c9b72d9dfd5ba5237b9c906b # v3.0.0
	with:
	# The version string is embedded in protoc generated files, so it is
	# pinned here to prevent unexpected differences. Follow the
	# https://github.com/protocolbuffers/protobuf repository for protoc
	# release updates.
	version: '26.1'
	- run: go mod download
	- run: make tools
	- run: make protoc
	- name: git diff
	run: \|
	git diff --compact-summary --exit-code \|\| \
	(echo; git diff; echo; echo "Unexpected difference in directories after code generation. Run 'protoc' command and commit."; exit 1)

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