[auth] Improve icon path matching #847

	name: "Lint (auth)"

	on:
	# Run on every pull request (open or push to it) that changes auth/
	pull_request:
	paths:
	- "auth/**"
	- ".github/workflows/auth-lint.yml"

	env:
	FLUTTER_VERSION: "3.24.3"

	jobs:
	lint:
	runs-on: ubuntu-latest
	defaults:
	run:
	working-directory: auth
	steps:
	- name: Checkout code and submodules
	uses: actions/checkout@v4
	with:
	submodules: recursive

	- name: Verify custom icons are lowercase including optional understores, and end with .svg
	run: \|
	find assets/custom-icons -type f -name "*.svg" \| while read -r file; do
	if [[ "$(basename "$file")" != "$(basename "$file" \| tr '[:upper:]' '[:lower:]' \| tr ' ' '_')" ]]; then
	echo "File name is not lowercase: $file"
	exit 1
	fi
	done

	- name: Verify all icons are less than 20KB
	run: \|
	find assets/custom-icons -type f -name "*.svg" \| while read -r file; do
	if [[ "$file" == "assets/custom-icons/icons/bbs_nga.svg" ]]; then
	continue
	fi
	if [[ "$(stat --printf="%s" "$file")" -gt 20480 ]]; then
	echo "File size is greater than 20KB: $file ($file_size bytes)"
	exit 1
	fi
	done

	- name: Verify custom icon JSON
	run: cat assets/custom-icons/_data/custom-icons.json \| jq empty

	- name: Install Flutter ${{ env.FLUTTER_VERSION }}
	uses: subosito/flutter-action@v2
	with:
	channel: "stable"
	flutter-version: ${{ env.FLUTTER_VERSION }}
	cache: true

	- run: flutter pub get

	- run: flutter analyze --no-fatal-infos

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