update-version.js

// from https://gitlab.com/staltz/manyverse/blob/master/tools/update-version.js

/* Any copyright is dedicated to the Public Domain.
 * http://creativecommons.org/publicdomain/zero/1.0/ */

const ReactNativeVersion = require('react-native-version')
const readline = require('readline')
const leftPad = require('left-pad')
const path = require('path')
const fs = require('fs')

module.exports = () => {
  return new Promise((resolve, reject) => {

    const currentVersion = JSON.parse(fs.readFileSync('./package.json')).version

    const rl = readline.createInterface({
      input: process.stdin,
      output: process.stdout,
    })

    function createTodaysVersion(attempt) {
      const today = new Date()
      const yy = today.getFullYear() - 2000 // So it's two digits
      const mm = leftPad(today.getMonth() + 1, 2, '0')
      const d = today.getDate()
      if (attempt === 0) {
        return `0.${yy}${mm}.${d}-beta`
      } else {
        const letter = String.fromCharCode(96 + attempt) // 0=a, 1=b, 2=c, ...
        return `0.${yy}${mm}.${d}-beta.${letter}`
      }
    }

    let nextVersion
    for (let i = 0 /* letter a */; i <= 25 /* letter z */; i++) {
      nextVersion = createTodaysVersion(i)
      if (nextVersion !== currentVersion) break
    }
    if (nextVersion === currentVersion) {
      console.error('I dont know what else to generate beyond ' + nextVersion)
      process.exit(1)
    }

    rl.question('Next version will be `' + nextVersion + '`, okay? y/n ', async yn => {
      if (yn !== 'y' && yn !== 'Y') {
        reject('Release cancelled.\n')
        return
      }

      const pkgJSON = JSON.parse(fs.readFileSync('./package.json'))
      const pkgLockJSON = JSON.parse(fs.readFileSync('./package-lock.json'))
      pkgJSON.version = nextVersion
      pkgLockJSON.version = nextVersion
      fs.writeFileSync('./package.json', JSON.stringify(pkgJSON, null, 2))
      fs.writeFileSync('./package-lock.json', JSON.stringify(pkgLockJSON, null, 2))

      await ReactNativeVersion.version(
        {
          neverAmend: true,
          target: 'android',
        },
        path.resolve(__dirname, '../'),
      )
      rl.close()
      resolve()
    })
  })
}