Simple utility for nodejs to watch file changes.
A file change is:
- a file whom's mtime is changed
- a file which is added to a 'watched' folder
- a file which is deleted form a 'watched' folder
A new feature is to watch folders recurively. However, polling for changes on the file system is slow. And I did not test this module on a large number of files and nested folders.
This utility is handy for e.g. automatic testing in combination with a testing frame-work, An example lives within the JakeFile (jake and docco required)
run: jake autotest
Make changes in the src/watch.js file or the specs/watchSpec.js file and see te specs running automaticly
npm install nodewatch
(Use the "-g" global switch for installing nodewatch global)
var watch = require('nodewatch');
// Adding 2 dirs relative from process.cwd()
// Nested dirs are not watched
// dirs can also be added absolute
watch.add("./spec").add("./lib/watch").onChange(function(file,prev,curr,action){
console.log(file);
console.log(prev.mtime.getTime());
console.log(curr.mtime.getTime());
console.log(action) // new, change, delete
});
// Clear (remove) the listeners
watch.clearListeners();
// Remove dirs to watch
watch.remove("./spec").remdDir("./lib/watch");
// Add a dir or file relative from process.cwd()
watch.add("./specs");
// or
watch.add("../specs");
// or
watch.add("../specs",true);
// With the last argument = true, the specs folder
// is recursive watched.
// Just watch ONE file
watch.add("../path/to/my/file.js")
// Add a dir absolute
watch.add("/absolute/path");
// Set a listener
// It will provide a file (filename as string), prev and curr stats objects
watch.onChange(function(file,prev,curr,action){
console.log(file);
console.log(prev.mtime.getTime());
console.log(curr.mtime.getTime());
console.log(action); // new, change, delete
});
// Remove a dir or file (absolute or relative)
watch.remove("./spec");
// Clear the listener(s) attached via onChange();
watch.clearListeners();
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent