provider services take part in the image phase, with image distribution on demand #2488

	name: PR Review - Trigger

	permissions: {}

	# Deduplicate simultaneous pull_request events for the same fork PR.
	# When reviewers are requested at the same time, GitHub fires multiple
	# review_requested events. Without this group each event triggers a
	# separate review via workflow_run, producing duplicate reviews.
	concurrency:
	group: pr-review-trigger-${{ github.event.pull_request.number }}
	cancel-in-progress: true

	on:
	pull_request:
	types: [ready_for_review, opened, review_requested]
	pull_request_review_comment:
	types: [created]

	jobs:
	save-context:
	# Only run on fork PRs; skip GitHub App bot accounts (Dependabot, Renovate, etc.) early.
	if: github.event.pull_request.head.repo.fork && github.event.sender.type != 'Bot'
	runs-on: ubuntu-latest
	steps:
	- name: Save event context
	env:
	PR_NUMBER: ${{ github.event.pull_request.number }}
	PR_HEAD_SHA: ${{ github.event.pull_request.head.sha }}
	COMMENT_JSON: ${{ toJSON(github.event.comment) }}
	run: \|
	mkdir -p context
	printf '%s' "${{ github.event_name }}" > context/event_name.txt
	printf '%s' "$PR_NUMBER" > context/pr_number.txt
	printf '%s' "$PR_HEAD_SHA" > context/pr_head_sha.txt
	if [ "${{ github.event_name }}" = "pull_request_review_comment" ]; then
	printf '%s' "$COMMENT_JSON" > context/comment.json
	fi

	- name: Upload context
	uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
	with:
	name: pr-review-context
	path: context/
	retention-days: 1

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