bitcoin.conf javascript utils

utils.js

// Just update for a single network. Maybe they don't want to enable their mainnet RPC, for instance ...
function updateBitcoinConfig(config, network) {
  // Would be better if this required confirmation ...
  delete config['global']['testnet']
  delete config['global']['regtest']
  config[network]['server'] = 1
  config[network]['disablewallet'] = 0
  return config
}

function writeBitcoinConfig(config) {
  const bitcoinConfigPath = getBitcoinConfigPath()
  const writer = fs.createWriteStream(bitcoinConfigPath)

  // FIXME: wrap in a promise
  writer.once('open', function (fd) {
    // global
    for (const [key, value] of Object.entries(config['global'])) {
      writer.write(`${key}=${value}\n`)
    }

    // mainnet
    if (Object.keys(config['mainnet']).length) {
      writer.write('[main]\n')
      for (const [key, value] of Object.entries(config['mainnet'])) {
        writer.write(`${key}=${value}\n`)
      }
    }

    // testnet
    if (Object.keys(config['testnet']).length) {
      writer.write('[test]\n')
      for (const [key, value] of Object.entries(config['testnet'])) {
        writer.write(`${key}=${value}\n`)
      }
    }

    // regtest
    if (Object.keys(config['regtest']).length) {
      writer.write('[regtest]\n')
      for (const [key, value] of Object.entries(config['regtest'])) {
        writer.write(`${key}=${value}\n`)
      }
    }

    // Close file descriptor
    writer.end()
  })

}

async function rewriteBitcoinConfig(network) {
  const config = await readBitcoinConfig(network)
  const updatedConfig = updateBitcoinConfig(config, network)
  writeBitcoinConfig(updatedConfig)
}