Package Exports

@expo/fingerprint
@expo/fingerprint/build/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@expo/fingerprint) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

@expo/fingerprint

A library to generate a fingerprint from a React Native project

Usage

import * as Fingerprint from '@expo/fingerprint';

await Fingerprint.createFingerprintAsync('/projectRoot');

`async function createFingerprintAsync(projectRoot: string, options?: Options): Promise<Fingerprint>`

Create a fingerprint from project

Example:

const fingerprint = await createFingerprintAsync('/app');
console.log(fingerprint);

{
  "sources": [
    {
      "type": "file",
      "filePath": "app.json",
      "reasons": ["expoConfig"],
      "hash": "378083de0c6e6bb6caf8fb72df658b0b26fb29ef"
    },
    {
      "type": "file",
      "filePath": "eas.json",
      "reasons": ["easBuild"],
      "hash": "f723802b6ea916d1a6c4767b2299cc81ddb22eb4"
    },
    {
      "type": "dir",
      "filePath": "node_modules/expo",
      "reasons": ["expoAutolinkingIos", "expoAutolinkingAndroid", "bareRncliAutolinking"],
      "hash": "1faee4057fa943300905750b51c3b0cbf05f4b0d"
    }
  ],
  "hash": "bf8a3b08935f056270b1688333b02f1ef5fa25bf"
}

`async function createProjectHashAsync(projectRoot: string, options?: Options): Promise<string>`

Create a native hash value from project

Example:

const hash = await createProjectHashAsync('/app');
console.log(hash);

bf8a3b08935f056270b1688333b02f1ef5fa25bf

`diffFingerprintChangesAsync(fingerprint: Fingerprint, projectRoot: string, options?: Options): Promise<FingerprintSource[]>`

Differentiate given fingerprint with the current project fingerprint state

Example:

const fingerprint = {
  sources: [
    {
      type: 'file',
      filePath: 'app.json',
      reasons: ['expoConfig'],
      hash: '378083de0c6e6bb6caf8fb72df658b0b26fb29ef',
    },
    {
      type: 'file',
      filePath: 'eas.json',
      reasons: ['easBuild'],
      hash: 'f723802b6ea916d1a6c4767b2299cc81ddb22eb4',
    },
    {
      type: 'dir',
      filePath: 'node_modules/expo',
      reasons: ['expoAutolinkingIos', 'expoAutolinkingAndroid', 'bareRncliAutolinking'],
      hash: '1faee4057fa943300905750b51c3b0cbf05f4b0d',
    },
  ],
  hash: 'bf8a3b08935f056270b1688333b02f1ef5fa25bf',
};
const result = await diffFingerprintChangesAsync(fingerprint, '/app');
console.log(result);

[
  {
    "filePath": "ios",
    "hash": "e4190c0af9142fe4add4842777d9aec713213cd4",
    "reasons": ["bareNativeDir"],
    "type": "dir"
  },
  {
    "filePath": "app.json",
    "hash": "9ff1b51ca9b9435e8b849bcc82e3900d70f0feee",
    "reasons": ["expoConfig"],
    "type": "file"
  }
]

CLI Usage

npx @expo/fingerprint /path/to/projectRoot