Discussion Javascript

NPM rimraf

The UNIX command rm -rf for node.

Install with npm install rimraf, or just drop rimraf.js somewhere.

rimraf(f, [opts], callback)

The first parameter will be interpreted as a globbing pattern for files. If you want to disable globbing you can do so with opts.disableGlob (defaults to false). This might be handy, for instance, if you have filenames that contain globbing wildcard characters.

The callback will be called with an error if there is one. Certain errors are handled for you:

  • Windows: EBUSY and ENOTEMPTY – rimraf will back off a maximum of opts.maxBusyTries times before giving up, adding 100ms of wait between each attempt. The default maxBusyTries is 3.
  • ENOENT – If the file doesn’t exist, rimraf will return successfully, since your desired outcome is already the case.
  • EMFILE – Since readdir requires opening a file descriptor, it’s possible to hit EMFILE if too many file descriptors are in use. In the sync case, there’s nothing to be done for this. But in the async case, rimraf will gradually back off with timeouts up to opts.emfileWait ms, which defaults to 1000.

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