lsdirp

lsdirp short for list(ls) directory(dir) content paths(p) is similar to fs.readdir() method but with the capability to read the directory recursively with or without using glob patterns.

Usage

1. Install with npm or yarn,
   

   npm install lsdirp
   # or
   yarn add lsdirp

2. Then, import the default function as follows and pass with arguments.

   Params
   

   • dirs (string[]) - array of directories as string or glob patterns.
   • options (object {}) - lsdirp options.
   
   

   // ES modules
   import lsdirp from 'lsdirp';
   
   // or
   
   // CommonJS
   const lsdirp = require('lsdirp');
   
   // returns map(n) {'dir_path' => ['file_paths']}
   const paths = lsdirp(['src/**/*.ts', 'utils'], options);

By passing optional options to second argument, lsdirp can be configured for desired output and format.

Important : Always use forward slash (posix style path separator) for patterns. If patterns with windows style path separator is passed, it will be converted to posix style for further process.

Options

list of available options,

{
  root: string,
  fullpath: boolean,
  flatten: boolean,
  ignorePaths: string[],
  prependPath: boolean,
  fileType: 'File' | 'Directory',
  includeParentDir: boolean;
  allowSymlinks: boolean;
  depth: number;
}

Option description and example

// sample directory structure

// current working directory ---> project-1

workspace
├── project-1
│   ├── src
│   │   ├── somefile.ts
│   │   └── index.ts
│   ├── package.json
│   ├── main.ts
│   └── symlinkToSrc
│
└── project-2
    ├── src
    │   ├── anotherfile.js
    │   └── index.js
    ├── utils
    │   ├── logger.js
    │   └── index.js
    ├── package.json
    └── main.js

root

default : '.' or process.cwd()

Change the root dir from where to read dir contents and list all matching paths.

Example

// cwd -> project-1

lsdirp(['../project-2/src/**/*.js', '../project-2/utils/*.js']);

// or

lsdirp(['src/**/*.js', 'utils/*.js'], {
  root: '../project-2',
});

Note: The overrided root will be used for resolving the directory path in the list of directories to be read.

fullPath

default : false

By default, the returned value contains paths relative to the root. For absolute path, set this option to true.

Example

// cwd -> project-1

lsdirp(['src']);
// returns map(1) { 'src' => [ 'src/somefile.ts', 'src/index.ts' ] }

lsdirp(['src'], {fullPath: true});
// returns map(1) { 'workspace/src' => [
//                          'workspace/src/somefile.ts',
//                          'workspace/src/index.ts'
//                         ] }

Note: This is os specific. So, in windows, the full path starts with drive letter.

flatten

default : false

By default, lsdirp method returns array of paths mapped to each dir and subdirectory. With flatten true, the returned value will be array of all matched file paths. This option will have no effect when coupled with option prependPath set to false.

Example

// cwd -> project-1

lsdirp(['src'], {flatten: true});
// returns [ 'src/somefile.ts', 'src/index.ts' ]

lsdirp(['src'], {flatten: true, prependPath: false});
// returns map(1) { 'src' => [ 'somefile.ts', 'index.ts' ]}

Note: Depending on the glob pattern or contents, the returned map might contain empty array. But in flattened mode, those empty arrays are stripped.

ignorePaths

default : ['**/node_modules', '**/.git']

This option takes array of patterns that will be used to ignore any file or directory matching that pattern. This accepts array of both string and glob pattern.

Important : Since, lsdirp uses relative or absolute path of the file / directory against the ignore path matcher, we advice you to use any of the below two methods to achieve expected result.

• Using ** for matching paths to be ignored

  The ** will match the file or directory at any depth. This is more flexible than the below one and at the same time shorter to write.

  Example

  // cwd -> project-1
  
  // This will ignore all files / directories starting with 'some' at any depth in project-1.
  lsdirp(['src'], {ignorePaths: ['**/some*']});
  
  // This will ignore all '.ts' files at any depth from project-2 root.
  lsdirp(['.'], {root: '../project-2', ignorePaths: ['**/*.ts']});
  
  // This will ignore all '.ts' files in src dir only in project-2.
  lsdirp(['.'], {root: '../project-2', ignorePaths: ['**/src/*.ts']});

• Using relative or absolute path

  If ** is not used, then to match the file / directory, we have to include the complete relative or absolute path depending on the fullPath option.

  Example

  // cwd -> project-1
  
  // This will ignore all files starting with 'some' at any depth in project-1.
  lsdirp(['src'], {ignorePaths: ['src/some*.ts']});
  
  // This will ignore all '.ts' files at any depth from project-2 root.
  lsdirp(['.'], {
    root: '../project-2',
    ignorePaths: ['../project-2/*.ts'], // use relative path if fullPath is false
  });
  
  // This will ignore all '.ts' files at any depth from project-2 root.
  lsdirp(['.'], {
    root: '../project-2',
    fullPath: true,
    ignorePaths: ['D:/workspace/project-2/*.ts'], // use absolute path if fullPath is true
  });

prependPath

default : true

To get the list of names of the dirent entries without path to it, set this option to false.

Example

// cwd -> project-1

lsdirp(['src'], {prependPath: false});
// returns map(1) { 'src' => [ 'somefile.ts', 'index.ts' ]}

Note: Before v2, this option is withFilePath.

fileType

default : File

By default, the returned array of paths mapped to each matching dir will contain path whose type is a 'file'. To get list of directories, set Directory to fileType option. This can be coupled with other options for desired result.

Example

// cwd -> project-1

lsdirp(['src'], {fileType: 'Directory', flatten: true});
// returns ['src']

includeParentDir

default : true

This option returns array of directory paths with passed in dir included.

Example

// cwd -> project-1

@default 'true'
lsdirp(['.'], {fileType: 'Directory'});
// returns ['.', './src']

lsdirp(['.'], {fileType: 'Directory', includeParentDir: false});
// returns ['./src']

allowSymlinks

default : false

This option allows the symlink paths to be included for reading if set true.

Example

// cwd -> project-1

lsdirp(['.'], {fileType: 'Directory', allowSymlinks: true});
// returns ['.', './src', './symlinkToSrc']

depth

default : 0

By setting this option with any positive number, lsdirp will stop reading dir content at that specified depth of subdirectories. With glob patterns, this option will have effect only if ** is included.

Example

// cwd -> project-1

lsdirp(['.'], {flatten: true, depth: 1});
// returns ['package.json', 'main.ts']

Glob Patterns

This library uses picomatch for matching files and directories with glob patterns. One of the best and popular library for working with glob patterns. It is faster and accurate at matching patterns.

Refer picomatch's Globbing features for supported patterns to be used with lsdirp.

Note: lsdirp sets the recursion to false, if the glob pattern doesn't contain ** pattern.