# npm-packlist

[![Build Status](https://travis-ci.com/npm/npm-packlist.svg?token=hHeDp9pQmz9kvsgRNVHy&branch=master)](https://travis-ci.com/npm/npm-packlist)

Get a list of the files to add from a folder into an npm package

These can be handed to [tar](http://npm.im/tar) like so to make an npm
package tarball:

```js
const packlist = require('npm-packlist')
const tar = require('tar')
const packageDir = '/path/to/package'
const packageTarball = '/path/to/package.tgz'

packlist({ path: packageDir })
  .then(files => tar.create({
    prefix: 'package/',
    cwd: packageDir,
    file: packageTarball,
    gzip: true
  }, files))
  .then(_ => {
    // tarball has been created, continue with your day
  })
```

This uses the following rules:

1. If a `package.json` file is found, and it has a `files` list,
   then ignore everything that isn't in `files`.  Always include the
   readme, license, notice, changes, changelog, and history files, if
   they exist, and the package.json file itself.
2. If there's no `package.json` file (or it has no `files` list), and
   there is a `.npmignore` file, then ignore all the files in the
   `.npmignore` file.
3. If there's no `package.json` with a `files` list, and there's no
   `.npmignore` file, but there is a `.gitignore` file, then ignore
   all the files in the `.gitignore` file.
4. Everything in the root `node_modules` is ignored, unless it's a
   bundled dependency.  If it IS a bundled dependency, and it's a
   symbolic link, then the target of the link is included, not the
   symlink itself.
4. Unless they're explicitly included (by being in a `files` list, or
   a `!negated` rule in a relevant `.npmignore` or `.gitignore`),
   always ignore certain common cruft files:

    1. .npmignore and .gitignore files (their effect is in the package
       already, there's no need to include them in the package)
    2. editor junk like `.*.swp`, `._*` and `.*.orig` files
    3. A `/test/` or `/tests/` folder at the root
    4. `.npmrc` files (these may contain private configs)
    5. The `node_modules/.bin` folder
    6. Waf and gyp cruft like `/build/config.gypi` and `.lock-wscript`
    7. Darwin's `.DS_Store` files because wtf are those even
    8. `npm-debug.log` files at the root of a project

    You can explicitly re-include any of these with a `files` list in
    `package.json` or a negated ignore file rule.

## API

Same API as [ignore-walk](http://npm.im/ignore-walk), just hard-coded
file list and rule sets.

The `Walker` and `WalkerSync` classes take a `bundled` argument, which
is a list of package names to include from node_modules.  When calling
the top-level `packlist()` and `packlist.sync()` functions, this
module calls into `npm-bundled` directly.
