build

feat: better error handling #13

	# ~~ Generated by projen. To modify, edit .projenrc.ts and run "npx projen".

	name: build
	on:
	pull_request: {}
	workflow_dispatch: {}
	jobs:
	build:
	runs-on: ubuntu-latest
	permissions:
	contents: write
	outputs:
	self_mutation_happened: ${{ steps.self_mutation.outputs.self_mutation_happened }}
	env:
	CI: "true"
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	ref: ${{ github.event.pull_request.head.ref }}
	repository: ${{ github.event.pull_request.head.repo.full_name }}
	- name: Setup pnpm
	uses: pnpm/action-setup@v3
	with:
	version: 9.12.3
	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version: lts/*
	cache: pnpm
	- name: Install dependencies
	run: pnpm i --frozen-lockfile
	- name: build
	run: npx projen build
	- name: Find mutations
	id: self_mutation
	run: \|-
	git add .
	git diff --staged --patch --exit-code > repo.patch \|\| echo "self_mutation_happened=true" >> $GITHUB_OUTPUT
	working-directory: ./
	- name: Upload patch
	if: steps.self_mutation.outputs.self_mutation_happened
	uses: actions/[email protected]
	with:
	name: repo.patch
	path: repo.patch
	overwrite: true
	- name: Fail build on mutation
	if: steps.self_mutation.outputs.self_mutation_happened
	run: \|-
	echo "::error::Files were changed during build (see build log). If this was triggered from a fork, you will need to update your branch."
	cat repo.patch
	exit 1

Provide feedback