mbland/custom-links

#! /usr/bin/env node
//
// Runs a series of idempotent migration scripts to transform an existing
// Custom Links database to a new schema.
//
// Usage:
//   REDIS_HOST=<hostname> REDIS_PORT=<port> run-migrations
//
// Where:
//   <hostname>  name of host on which Redis is running (default: localhost)
//   <port>      port on which Redis is listening (default: 6379)

var Log = require('log')
var log = new Log('info')

var redis = require('redis')
var redisClientOptions = {
  host: process.env.REDIS_HOST,
  port: process.env.REDIS_PORT
}
var redisClient = redis.createClient(redisClientOptions)

var path = require('path')

const MIGRATIONS_DIR = '../lib/redis/migrations/'
const MIGRATION_NAMES = [
  '0000-target-search-autocomplete'
]

Promise
  .all(MIGRATION_NAMES.map(migrationName => {
    var Migration = require(path.join(MIGRATIONS_DIR, migrationName))

    log.info(`migration ${migrationName} started`)
    return new Migration(redisClient, log).migrate()
      .then(() => {
        log.info(`migration ${migrationName} complete`)
      })
      .catch(err => {
        log.error(`migration ${migrationName} failed: ${err}`)
        return err
      })
  }))
  .then(results => {
    process.exit(results.filter(i => i !== undefined).length)
  })