Standardize error handling with specific exit codes #453

	name: Broken Link Check

	on:
	pull_request:
	schedule:
	- cron: '0 5 * * 1' # Weekly, Mondays at 05:00 UTC
	workflow_dispatch:

	permissions:
	contents: read

	jobs:
	link-check:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Run lychee
	uses: lycheeverse/lychee-action@v2
	with:
	args: >-
	--include-fragments
	--no-progress
	--verbose
	--timeout 20
	--max-redirects 10
	--max-retries 3
	--retry-wait-time 2
	--format markdown
	--exclude '^https://doi\.org/'
	--exclude '^https://russellranch\.ucdavis\.edu'
	.
	fail: true
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	- name: Upload lychee report
	if: ${{ always() }}
	uses: actions/upload-artifact@v4
	with:
	name: lychee-report
	path: lychee

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