chore: improve `dfx start` messages. #5110

	name: Ensure JSON schema docs are up-to-date
	on: pull_request

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	env:
	# When getting Rust dependencies, retry on network error:
	CARGO_NET_RETRY: 10
	# Use the local .curlrc
	CURL_HOME: .

	jobs:
	check:
	name: json-schema-docs-up-to-date:required
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Check cargo build
	run: cargo build
	- name: Show download worked
	run: cargo run -- --version
	- name: Check for changes
	run: \|
	cargo run -- schema --outfile docs/dfx-json-schema.json
	cargo run -- schema --for networks --outfile docs/networks-json-schema.json
	cargo run -- schema --for dfx-metadata --outfile docs/dfx-metadata-schema.json
	cargo run -- schema --for extension-manifest --outfile docs/extension-manifest-schema.json
	cargo run -- schema --for extension-dependencies --outfile docs/extension-dependencies-schema.json
	cargo run -- schema --for extension-catalog --outfile docs/extension-catalog-schema.json

	echo "JSON Schema changes:"
	if git diff --exit-code ; then
	echo "(None)"
	else
	echo
	echo "There are code changes in this PR that the JSON schema should reflect,"
	echo "but the JSON schema docs have not been updated."
	echo
	echo "Run the above commands locally to update the JSON schema docs."
	exit 1
	fi

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