CLDR-17934 site: add a 404 page (#4045) #1

	name: CLDR Site

	permissions:
	deployments: write
	id-token: write
	pull-requests: write

	on:
	pull_request:
	paths:
	# - "tools/scripts/tr-archive/**"
	- "docs/site/**"
	- '.github/workflows/site.yml'
	push:
	branches:
	- main
	# Only run if docs change.
	paths:
	# - "tools/scripts/tr-archive/**"
	- "docs/site/**"
	- '.github/workflows/site.yml'

	jobs:
	cloudflare:
	runs-on: ubuntu-latest
	environment: cloudflare
	steps:
	- uses: actions/checkout@v4
	with:
	lfs: false
	- uses: ruby/setup-ruby@v1
	with:
	ruby-version: 3.2
	bundler-cache: true
	- name: Setup Jekyll
	run: 'gem install bundler jekyll kramdown-parser-gfm webrick'
	- name: Setup assets
	run: 'cd docs/site/assets && npm ci && npm run build'
	- name: Build cldr.pages.dev
	run: 'cd docs/site && jekyll build'
	- name: Pre-install Wrangler
	run: npm i -g [email protected]
	# see https://github.com/cloudflare/wrangler-action/issues/286
	- name: Deploy cldr.pages.dev
	id: deploy
	uses: cloudflare/wrangler-action@v3
	with:
	apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
	accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
	command: pages deploy ./_site --project-name=cldr
	- name: Add deploy comment to PR
	uses: actions/github-script@v7
	if: github.event_name == 'pull_request'
	with:
	script: \|
	github.rest.issues.createComment({
	issue_number: context.issue.number,
	owner: context.repo.owner,
	repo: context.repo.repo,
	body: '✨ deployed to <${{ steps.deploy.outputs.deployment-url }}>'
	})
	github.rest.issues.addLabels({
	issue_number: context.issue.number,
	owner: context.repo.owner,
	repo: context.repo.repo,
	labels: ['Site Update']
	})

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