bit-loader-cache

Caching plugin for bit-loader. This helps increase build times after initial build.

compatible with:

• bit-bundler

options and usage

const Bitbundler = require("@bit/bundler");

const bitbundler = new Bitbundler({
  watch: true,
  loader: [
    "@bit/loader-cache"
  ]
})

timeout

Write operations are throttled to prevent nasty issues with performance, and you can control how frequently write operations are retried (in milliseconds). Default value is 3000 milliseconds, which is 3 seconds.

cachePlugin({
  timeout: 1000
})

dest

File name to write the cache to. Defaults to .bundler-cache.json and written to the current working directory.

cachePlugin({
  dest: "cache.json"
})

connector

The cache plugin has the concept of connectors, which is basically a small interface you can implement for writing custom data sources.

The interface for a connector is relatively trivial and they are Promise compatible.

• set, which takes in an id and a payload to store.
• get, which takes the id from a set operation.
• flush which is called whenever changes should be flushed.

You can take a look at the default connector, which basically just writes to the local disk.

Other connectors included are:

• elasticsearch connector
• redis connector

Examples

Elasticsearch

const Bitbundler = require("@bit/bundler");
const esConnector = require("@bit/loader-cache/connectors/elasticsearch");

const bitbundler = new Bitbundler({
  loader: [
    [ "@bit/loader-cache", {
      connector: esConnector({
        host: "localhost:9200",
        index: "cache_example",
        type: "modules"
      })
    })
  ]
});

bitbundler.bundle({
  src: "src/main.js",
  dest: "dest/cache_plugin.js"
});

Redis

The redis connector takes an optional flag watch that when set to true will keep the redis connector connected until the process is stopped. Otherwise, the redis connector exits when all the data is flushed.

const Bitbundler = require("@bit/bundler");
const redisConnector = require("@bit/loader-cache/connectors/redis");

const bitbundler = new Bitbundler({
  loader: [
    [ "@bit/loader-cache", {
      connector: redisConnector()
    }]
  ]
});

bitbundler.bundle({
  src: "src/main.js",
  dest: "dest/cache_plugin.js"
});

Docker

docker-compose

There are a couple of docker-compose files for spinning up elasticsearch and redis environments. You can run whichever you want to work with.

Elasticsearch

To spin up elasticsearch as well as kibana for a UI to run queries on elasticsearch (and more), you can use the es-docker-compose.yml configuration file.

$ docker-compose -f es-docker-compose.yml up

You can go to http://localhost:5601 in order to access kibana in the browser to see the data stored in elasticsearch.

Redis

To spin up a redis environment you can use the redis-docker-compose.yaml configuration file.

$ docker-compose -f redis-docker-compose.yml up