A module for repeated efficient synchronizing two directories.
// input/a/{a.js,b.js}
// output/
var tree = new TreeSync('input', 'output');
tree.sync();
// output is now contains copies of everything that is in input
fs.unlink('/input/a/b.js');
// input / output have diverged
tree.sync();
// difference is calculated and efficient patch to update `output` is created and applied
Under the hood, this library uses walk-sync to traverse files and folders. You may optionally pass in options to selectively include or ignore files and directories. These whitelisted properties (ignore
and globs
) will be passed to walk-sync.
// Assume the following folder structure...
// input/
// foo/
// foo.js
// bar.js
// bar/
// foo-bar.js
var tree = new TreeSync('input', 'output', {
ignore: ['**/b']
});
tree.sync();
// We now expect output to contain foo/, but not bar/.
// Any changes made to bar/ won't be synced to output, and the contents of bar/ won't be traversed.
// Assume the following folder structure...
// input/
// foo/
// foo.js
// bar.js
// bar/
// foo-bar.js
var tree = new TreeSync('input', 'output', {
globs: ['foo', 'foo/bar.js']
});
tree.sync();
// We now expect output to contain foo/bar.js, but nothing else.
// Be careful when using this property! You'll need to make sure that if you're including a file, it's parent
// path is also included, or you'll get an error when tree-sync tries to copy the file over.