Filehound

Flexible and fluent interface for searching the file system

Common examples

The example below prints all of the files in a directory that have the .json file extension:

const FileHound = require('filehound');

const files = FileHound.create()
  .paths('/some/dir')
  .ext('json')
  .find();

files.then(console.log);

Matching the filename

Find all the files that start with dev:

const files = FileHound.create()
  .paths('/etc/pki/')
  .match('dev*')
  .find();

Filtering by file size

Find all of the files in a directory that are larger than 1024 bytes:

const files = FileHound.create()
  .paths('/some/dir')
  .size('>1024')
  .find();

const files = FileHound.create()
  .paths('/some/dir')
  .size('<=1mb')
  .find();

Combining filters

Find all the .txt files that are larger than 1024 bytes and start with note:

const files = FileHound.create()
  .paths('/etc/pki/')
  .match('note*')
  .ext('txt')
  .size('>1024')
  .find();

Inverse filtering

Find all of the files that don't have the .json extension:

const files = FileHound.create()
  .ext('json')
  .not()
  .find();

Limiting the depth of a recursive search

Find all files but only in the current directory (recursion off):

const files = FileHound.create()
  .depth(0)
  .find();

Combining multiple searches

Find all the files that are either over 1K or have the .json file extension:

const filesOverOneK = FileHound.create()
  .paths('/some/dir')
  .size('>1k')
  .find();

const jsonFiles = FileHound.create()
  .paths('/some/dir')
  .ext('json')
  .find();

const files = FileHound.any(filesOverOneK, jsonFiles);

Defining multiple search locations

Find all JSON files in '/some/dir1' and '/some/dir2'

const jsonFiles = FileHound.create()
  .paths('/some/dir1', '/some/dir2')
  .ext('json')
  .find();

const myPaths = ['/some/dir1', '/some/dir2'];
const jsonFiles = FileHound.create()
  .paths(myPaths)
  .ext('json')
  .find();

Search synchronously

Find all JSON files in '/tmp' synchronously

const jsonFiles = FileHound.create()
  .paths('/tmp')
  .ext('json')
  .findSync();

Using callbacks

Find all empty text files in /tmp:

FileHound.create()
  .paths('/tmp')
  .ext('txt')
  .isEmpty()
  .find((err, emptyTextFiles) => {
    console.log(emptyTextFiles);
  });

Binding to match, error and end events

Bind to a 'match' event to process each file on match:

const filehound = FileHound.create();
  filehound.find();

  filehound.on('match', (file) => {
    console(`process ${file}`);
  });

  filehound.on('error', (error) => {
    console(`error ${error}`);
  });

  filehound.on('end', (file) => {
    console(`search complete`);
  });

Find files by matching content

See FileSniffer