prisma-safety

A safe schema change checker for Prisma. Errors if a model is deleted without previously having been marked @@ignore or a field is deleted without previously having been marked @ignore.

Motivation

https://github.com/prisma/prisma/discussions/13922

Installation

> npm install --save-dev prisma-safety
# or
> yarn add --dev prisma-safety

Usage

> npx prisma-safety <base-sha>
# or
> yarn prisma-safety <base-sha>

A schema file path can be specified with the -s, --schema option. The default path is prisma/schema.prisma.

Run yarn prisma-safety --help for more.

CLI

Example usage locally from CLI:

> yarn prisma-safety d282130914405c7055a360834229dc5ae00fbc73
Unsafe change to "LineItem.invoiceId": Expected deleted field to have been marked with @ignore prior to delete.

GitHub Actions

Example usage in GitHub Actions:

jobs:
  prisma-safety:
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v3
        with:
          node-version: '18.13.0'
          cache: 'yarn'
      - run: yarn
      - name: Check Prisma schema change safety
        run: |
          # Even though we don't diff again main's HEAD, we need to fetch it
          # because the base SHA is not fetched as part of the shallow clone
          # GitHub Actions uses to fetch the PR branch HEAD.
          git fetch origin ${{ github.base_ref }}
          yarn prisma-safety ${{ github.event.pull_request.base.sha }}