Foy

A simple, light-weight and modern task runner for general purpose.

Contents

• Foy
  • Contents
  • Features
  • Install
  • Write a Foyfile
  • Using with built-in promised-based API
  • Using with other packages
  • Using dependencies
  • Using namespaces
  • Using in CI servers
  • Watch and build
  • Using with custom compiler
  • API documentation
  • License

Features

• Promise-based tasks and built-in utilities.
• shelljs like commands
• Easy to learn, stop spending hours for build tools.
• Small install size
  • foy:
  • gulp:
  • grunt:

Install

yarn add -D foy # or npm i -D foy

Or Install globally with

yarn add -g foy # or npm i -g foy

Write a Foyfile

You need to add a Foyfile.js(or Foyfile.ts with ts-node installed) in your project root.

Also, you can simply generate a Foyfile.js via:

foy --init

Then it will put a simple Foyfile.js in current folder:

// Foyfile.js
const { task } = require('foy')

task('build', async ctx => {
  await ctx.exec('tsc')
})

You can also generate a Foyfile.ts via

foy --init ts

Then we can run foy build to execute the build task.

foy build

You can also add some options and description to task:

import { task, desc, option, strict } from 'foy'

desc('Build ts files with tsc')
option('-w, --watch', 'watch file changes')
strict() // This will throw an error if you passed some options that doesn't defined via `option()`
task('build', async ctx => {
  await ctx.exec(`tsc ${ctx.options.watch ? '-w' : ''}`)
})

foy build -w

Using with built-in promised-based API

import { fs, task } from 'foy'

task('some task', async ctx => {
  await fs.rmrf('/some/dir/or/file') // Remove directory or file
  await fs.copy('/src', '/dist') // Copy folder or file
  let json = await fs.readJson('./xx.json')
  await ctx
    .env('NODE_ENV', 'production')
    .cd('./src')
    .exec('some command') // Execute an command
  let { stdout } = await ctx.exec('ls', { stdio: 'pipe' }) // Get the stdout, default is empty because it's redirected to current process via `stdio: 'inherit'`.
})

Using with other packages

import { task } from 'foy'
import * as axios from 'axios'

task('build', async ctx => {
  let res = await axios.get('https://your.server/data.json')
  console.log(res.data)
})

Using dependencies

import { task } from 'foy'
import * as axios from 'axios'

task('test', async ctx => {
  await ctx.exec('mocha')
})

task('build', async ctx => {
  let res = await axios.get('https://your.server/data.json')
  console.log(res.data)
  await ctx.exec('build my awesome project')
})
task(
  'publish:patch',
  ['test', 'build'], // Run test and build before publish
  async ctx => {
    await ctx.exec('npm version patch')
    await ctx.exec('npm publish')
  }
)

Or, you can pass options to customize the execution of dependences:

task(
  'publish:patch',
  [{
    name: 'test',
    async: true, // run test parallelly
    force: true, // force rerun test whether it is executed before or not,
  }, {
    name: 'build',
    async: true,
    force: true,
  },],
  async ctx => {
    await ctx.exec('npm version patch')
    await ctx.exec('npm publish')
  }
)

/* Sugar version */
task(
  'publish:patch',
  [ 'test'.async().force(),
    'build'.async().force() ],
  async ctx => {
    await ctx.exec('npm version patch')
    await ctx.exec('npm publish')
  }
)

/*
Priority for async tasks

Default is 0, bigger is formmer, then we will run `build` before `test`.
If you have multi async dependencies with same priority, they will be executed parallel.
*/
task(
  'publish:patch',
  [ 'test'.async(0).force(),
    'build'.async(1).force() ],
  async ctx => {
    await ctx.exec('npm version patch')
    await ctx.exec('npm publish')
  }
)

You can also pass options to dependences:

task('task1', async ctx => {
  console.log(ctx.options) // "{ forceRebuild: true, lazyOptions: 1 }"
  console.log(ctx.global.options) // options from command line "{ a: 1 }"
})


task('task2', [{
  name: 'task1',
  options: {
    forceRebuild: true,
  },
  // Some options that rely on ctx or asynchronization,
  // it will be merged to options.
  resolveOptions: async ctx => {
    return { lazyOptions: 1 }
  }
}])

// foy task2 -a 1

Using namespaces

If you have lots of tasks, naming might be a problem, what foy do is to making life easier, but more anxious. So we provide a namespacify function to generate task names with namespaces.

import { namespacify, task, namespace } from 'foy'

// namespacify(names: object, ns = '', sep = ':')
const ns = namespacify({
  client: {
    build: '',
    start: '',
    watch: '',
  },
  server: {
    build: '',
    start: '',
    watch: '',
  },
  start: '',
})

namespace(ns.client, ns => {
  task(ns.build, async ctx => { /* ... */ }) // client:build
  task(ns.start, async ctx => { /* ... */ }) // client:start
  task(ns.watch, async ctx => { /* ... */ }) // client:watch
})

namespace(ns.server, ns => {
  task(ns.build, async ctx => { /* ... */ }) // server:build
  task(ns.start, async ctx => { /* ... */ }) // server:start
  task(ns.watch, async ctx => { /* ... */ }) // server:watch
})

task(ns.start, [ns.client.start.async(), ns.server.start.async()]) // start

// foy start
// foy client:build

Using in CI servers

If you use Foy in CI servers, you might won't want the loading because most CI servers will log the stdout and stderr to files, the loading will be logged as frames. Luckily, Foy has already considered this use case, you can simple disable the loading behavior like this:

import { task, setGlobalOptions } from 'foy'

setGlobalOptions({ loading: false }) // disable loading animations

task('test', async cyx => { /* ... */ })
/*
$ foy test
DependencyGraph for task [test]:
─ test

Task: test
...
*/

Watch and build

task('build', async ctx => { /* build your project */ })
task('run', async ctx => { /* start your project */ })

let p = null
task('watch', async ctx => {
  ctx.fs.watchDir('./src', async (evt, file) => {
    await ctx.run('build')
    p && !p.killed && p.kill()
    p = await ctx.run('run')
  })
})

Using with custom compiler

# Write Foyfile in ts, enabled by default
foy -r ts-node/register -c ./some/Foyfile.ts build

# Write Foyfile in coffee
foy -r coffeescript/register -c ./some/Foyfile.coffee build

API documentation

https://zaaack.github.io/foy/api

License

MIT