DevRunner

A development task runner to start dev servers and other task runners in the order you want.

Install

npm install --save-dev dev-runner

Configuration

interface EventMatcher {
  regex: RegExp;
  actionData: Object | ((str: string) => Object);
}

interface Config {
  [key: string]: {
    dependsOn?: string[];
    preStart?: string;
    start?: string;
    events?: EventMatcher[];
    process?: ((input: EventEmitter, output: EventEmitter) => void);
    watch?: string[];
    readyAfter?: number;
  }
}

• dependsOn?: string[]: tasks that must be ready before current task. It detects {type: 'ready'} action as a single of ready. If multiple tasks is specified, will wait until all of them is ready before start current task.
• preStart?: string: shell command to run before start or process.
• start?: string: long running shell command, typically a watch process. Cannot be appear at the same time as process. If more {type: 'ready'} action is received, current running process will be killed and new one will be started.
• events?: EventMatcher[]: match string output of preStart and start with an array of regular expression, if matched, defined action will be emitted. This property only works if start or preStart is defined.
  • regex: RegExp
  • actionData: Object | (str: string) => Object Predefined action object, or a function to generate action object based on matched input string.
  • {type: 'ready'} is a special action to notify following tasks current task is ready. It could be emitted multiple times.
• process?: (input: EventEmitter, output: EventEmitter) => void: Run some custom code, e.g. live reload server.
  • input: EventEmitter: all event will have a type key.
    • {type: 'ready'}
    • {type: 'watch'; changeType: string; path: string}: changeType can be "add", "change", "unlink".
  • output: EventEmitter
• watch?: string[]: emit file change event to process. Only works if process is defined.
• readyAfter?: number: emit {type: 'ready'} action after x milliseconds.