Refactor: upgrade to Next 15 (#4485) #4804

	# Copyright (c) HashiCorp, Inc.
	# SPDX-License-Identifier: MPL-2.0

	name: 'Next.js Bundle Analysis'

	on:
	pull_request:
	push:
	branches:
	- dev

	permissions:
	contents: read # for checkout repository
	actions: read # for fetching base branch bundle stats
	pull-requests: write # for comments

	jobs:
	analyze:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Install dependencies
	uses: ./.github/workflows/yarn

	- name: Build next.js app
	uses: ./.github/workflows/build
	with:
	secrets: ${{ toJSON(secrets) }}

	- name: Analyze bundle
	run: npx -p nextjs-bundle-analysis report

	- name: Upload bundle
	uses: actions/upload-artifact@v4
	with:
	name: bundle
	path: .next/analyze/__bundle_analysis.json

	- name: Download base branch bundle stats
	if: success() && github.event.number
	run: bash ./scripts/github/download_bundle_analyser_artifact.sh
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

	- name: Compare with base branch bundle
	if: success() && github.event.number
	run: ls -laR .next/analyze/base && npx -p nextjs-bundle-analysis compare

	- name: Get Comment Body
	id: get-comment-body
	if: success() && github.event.number
	# https://docs.github.com/en/actions/using-workflows/workflow-commands-for-github-actions#multiline-strings
	run: \|
	echo "body<<EOF" >> $GITHUB_OUTPUT
	echo "$(cat .next/analyze/__bundle_analysis_comment.txt)" >> $GITHUB_OUTPUT
	echo EOF >> $GITHUB_OUTPUT

	- name: Comment
	uses: marocchino/sticky-pull-request-comment@v2
	with:
	header: next-bundle-analysis
	message: ${{ steps.get-comment-body.outputs.body }}

Provide feedback