Add a workflow to print bundle size #1

	# This workflow builds the packages on the base branch and the PR branch, and then records the sizes of the built packages.
	# The size comparison is done in a separate workflow because this one can't leave PR comments.

	name: Bundle size

	on:
	pull_request:

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	permissions:
	contents: read

	jobs:
	build:
	name: Build on the base branch and the PR branch
	strategy:
	matrix:
	branch:
	- ${{ github.base_ref }}
	- ${{ github.head_ref }}
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	ref: ${{ matrix.branch }}

	- name: Setup
	uses: ./.github/actions/setup

	- name: Build the packages
	run: turbo run build

	- name: Collect sizes in bytes
	id: sizes
	run: du -sb packages/*/dist > sizes-${{ matrix.branch }}.txt

	- name: Upload the sizes
	uses: actions/upload-artifact@v4
	with:
	name: sizes-${{ matrix.branch }}
	path: sizes-${{ matrix.branch }}.txt

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