Allow --await-write-finish to specify time (#72)

README.md

@@ -77,12 +77,12 @@ To set the amount of delay (in ms) between process exits:
 onchange -d 1000 '**/*.js' -- npm start
 ```
 
-### Await Write Finish (`--await-write-finish`)
+### Await Write Finish (`--await-write-finish <ms>`)
 
-To hold the events until the size does not change for a configurable amount of time:
+To hold the events until the size does not change for a configurable amount of time (in ms, default is [`2000`](https://www.npmjs.com/package/chokidar#performance)):
 
 ```sh
-onchange --await-write-finish '**/*.js' -- npm test
+onchange --await-write-finish 1500 '**/*.js' -- npm test
 ```
 
 ### Poll (`-p <ms>`, `--poll <ms>`)

cli.js

@@ -6,7 +6,7 @@ var arrify = require('arrify')
 // Parse argv with minimist...it's easier this way.
 var argv = require('minimist')(process.argv.slice(2), {
   '--': true,
-  boolean: ['v', 'i', 'k', 'await-write-finish'],
+  boolean: ['v', 'i', 'k'],
   string: ['e', 'c', 'killSignal'],
   alias: {
     jobs: ['j'],

index.d.ts

@@ -16,7 +16,7 @@ declare namespace onchange {
     stderr?: NodeJS.WritableStream;
     outpipe?: string;
     filter?: string[];
-    awaitWriteFinish?: boolean;
+    awaitWriteFinish?: boolean | number;
   }
 }
 

index.js

@@ -90,7 +90,9 @@ function onchange (match, command, rawargs, opts = {}) {
   const args = rawargs ? rawargs.map(tmpl) : []
   const outpipe = typeof opts.outpipe === 'string' ? outpipetmpl(opts.outpipe) : undefined
   const filter = opts.filter || []
-  const awaitWriteFinish = !!opts.awaitWriteFinish
+  const awaitWriteFinish =  typeof opts.awaitWriteFinish === 'number' 
+    ? { stabilityThreshold: opts.awaitWriteFinish } 
+    : !!opts.awaitWriteFinish
   const running = new Set()
   const queue = new Deque()