A plugin for prettier to enable autoformatting for Cloud Firestore Security Rules.

A custom built parser for the rules is included.

With npm

npm i --save-dev prettier prettier-plugin-firestore-rules

With yarn

yarn add -D prettier prettier-plugin-firestore-rules

Generally

prettier -w <path/to/file>

Using yarn berry

yarn prettier -w <path/to/file>

Create a .prettierrc file and add your preferred configuration options.

Configurations are optional.

• emptyLinesBetweenBlocks
  • Default: 0
  • Adds empty lines between matcher blocks

{
  "emptyLinesBetweenBlocks" : 1
}

For more information see Prettier documentation.

• Fix some indentation issues
  • Array not correctly indented as function parameter

  request.resource.data.keys().hasOnly(
  ['rank', 'name', 'description', 'imageUrl', 'timeSlot']
  )
  

  • Function parameter in general

  get(
  /databases/$(database)/documents/configurations/someData
  ).data.values.hasAll(request.resource.data.someData)
  

  • if-alignments, sometimes off

           if hasValue('writeSLots', request.auth.uid, carId)
      && zxcv
      && xcvb
  

  • semicolon may be off

  && request.resource.data.timeSlot.to > request.resource.data.timeSlot.from
            ;
  

• Add formatter options:
  • && at start or end of the line