feat(metrics): add near-duplicate block detection #11

	name: Sync Behavior Coverage

	on:
	pull_request:
	branches: [main]

	permissions:
	contents: write

	jobs:
	sync:
	runs-on: ubuntu-latest
	if: github.event.pull_request.head.repo.full_name == github.repository

	steps:
	- name: Checkout PR branch
	uses: actions/checkout@v6
	with:
	ref: ${{ github.head_ref }}
	token: ${{ secrets.GITHUB_TOKEN }}

	- name: Set up Elixir
	uses: erlef/setup-beam@v1
	with:
	otp-version: "27.3"
	elixir-version: "1.19"

	- name: Cache deps
	uses: actions/cache@v4
	with:
	path: \|
	deps
	_build
	key: ${{ runner.os }}-mix-dev-otp27.3-elixir1.19-${{ hashFiles('mix.lock', 'mix.exs') }}
	restore-keys: ${{ runner.os }}-mix-dev-otp27.3-elixir1.19-

	- name: Install dependencies
	run: mix deps.get

	- name: Compile
	run: mix compile --warnings-as-errors

	- name: Regenerate language coverage
	run: mix codeqa.sample_report --apply-languages

	- name: Regenerate scalar vectors
	run: mix codeqa.sample_report --apply-scalars

	- name: Check for YAML drift
	id: diff
	run: \|
	if git diff --quiet priv/combined_metrics/; then
	echo "changed=false" >> $GITHUB_OUTPUT
	else
	echo "changed=true" >> $GITHUB_OUTPUT
	fi

	- name: Commit and push updated YAMLs
	if: steps.diff.outputs.changed == 'true'
	run: \|
	git config user.name "github-actions[bot]"
	git config user.email "github-actions[bot]@users.noreply.github.com"
	git add priv/combined_metrics/*.yml
	git commit -m "chore(combined-metrics): sync language coverage and scalar vectors [skip ci]"
	git push

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