ci: rework release workflow as tag-triggered pipeline (#12) #8

	name: CI
	on:
	pull_request:
	branches: [main]
	push:
	branches: [main]

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Install protoc
	run: \|
	PROTOC_ZIP=protoc-3.14.0-linux-x86_64.zip
	curl -OL https://github.com/protocolbuffers/protobuf/releases/download/v3.14.0/$PROTOC_ZIP
	unzip -o $PROTOC_ZIP -d . bin/protoc
	unzip -o $PROTOC_ZIP -d . 'include/*'
	rm -f $PROTOC_ZIP
	echo "$(pwd)/bin" >> "$GITHUB_PATH"

	- name: Cache Stack
	uses: actions/cache@v4
	with:
	path: \|
	/home/runner/.stack
	.stack-work
	server/.stack-work
	client/.stack-work
	key: stack-${{ hashFiles('stack.yaml.lock') }}
	restore-keys: stack-

	- name: Build
	run: stack build

	test:
	needs: build
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Install protoc
	run: \|
	PROTOC_ZIP=protoc-3.14.0-linux-x86_64.zip
	curl -OL https://github.com/protocolbuffers/protobuf/releases/download/v3.14.0/$PROTOC_ZIP
	unzip -o $PROTOC_ZIP -d . bin/protoc
	unzip -o $PROTOC_ZIP -d . 'include/*'
	rm -f $PROTOC_ZIP
	echo "$(pwd)/bin" >> "$GITHUB_PATH"

	- name: Cache Stack
	uses: actions/cache@v4
	with:
	path: \|
	/home/runner/.stack
	.stack-work
	server/.stack-work
	client/.stack-work
	key: stack-${{ hashFiles('stack.yaml.lock') }}
	restore-keys: stack-

	# hspec suites are compiled but not executed (network-dependence
	# unverified); the build job remains the gate.
	- name: Build test suites
	run: stack build --test --no-run-tests

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