fix: add valid input for sed #12

	name: build docs
	on: push

	jobs:
	build_docs:
	runs-on: "ubuntu-20.04"
	steps:
	- name: Check out repository code
	uses: actions/checkout@v3

	- name: Build docs
	run: make docs

	- name: Get current git ref
	id: rev_parse
	run: echo "COMMIT_HASH=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT

	- name: Checkout ooni/docs
	uses: actions/checkout@v2
	with:
	repository: "ooni/docs"
	ssh-key: ${{ secrets.OONI_DOCS_DEPLOYKEY }}
	path: "ooni-docs"

	- name: Update docs
	run: \|
	mkdir -p ooni-docs/src/content/docs/probe-engine/
	mkdir -p ooni-docs/src/assets/images-probe-engine/
	cp -R dist/docs/img/* ooni-docs/src/assets/images-probe-engine/
	rm -r dist/docs/img
	cp -R dist/docs/* ooni-docs/src/content/docs/probe-engine/

	- name: Check for conflicting slugs
	run: \|
	cat ooni-docs/src/content/docs/probe-engine/*.md \
	\| grep "^slug:" \| awk -F':' '{gsub(/^ +/, "", $2); print $2}' \| sort \| uniq -c \
	\| awk '{if ($1 > 1) { print "duplicate slug for: " $2; exit 1}}'

	- name: Print the lines of the generated docs
	run: wc -l ooni-docs/src/content/docs/probe-engine/*

	- name: Print assets used in docs
	run: ls ooni-docs/src/assets

	- name: Commit changes
	# Only push the docs update when we are in master
	if: github.ref == 'refs/heads/master'
	run: \|
	cd ooni-docs
	git config --global user.email "github+backend@ooni.org"
	git config --global user.name "OONI Github Actions Bot"
	git add .
	git commit -m "auto: update probe-engine docs to ${{ steps.rev_parse.outputs.COMMIT_HASH }}" \|\| echo "No changes to commit"
	git push origin

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