# Archiver v0.4.10 [![Build Status](https://secure.travis-ci.org/ctalkington/node-archiver.png?branch=master)](http://travis-ci.org/ctalkington/node-archiver)

Creates Archives (Zip, Tar) via Node Streams. Depends on Node's built-in zlib module for compression available since version 0.6.3.

## Install

```bash
npm install archiver --save
```

You can also use `npm install https://github.com/ctalkington/node-archiver/archive/master.tar.gz` to test upcoming versions.

## Archiver

#### #create(type, options)

Creates an Archiver instance based on the type (ie zip/tar) passed. Can be passed to `Archiver` for convenience.

### Instance Methods

#### #append(input, data, callback(err))

Appends a file to the instance. Input can be in the form of a text string, buffer, or stream. When the instance has received, processed, and emitted the input, the callback is fired.

Replaces `#addFile` which is in the depreciation stage and set to be remove in next release.

#### #finalize(callback(err, bytes))

Finalizes the instance. When the instance's stream has finished emitting, the callback is fired. This generally doesn't correspond to the end of the destination stream; though a solution to track the destination stream may come in a future release.

## Zip

### Options

#### comment `string`

Sets the zip comment.

#### forceUTC `boolean`

If true, forces the file date and time to UTC. Helps with testing across timezones.

#### zlib `object`

Passed to node's [zlib](http://nodejs.org/api/zlib.html#zlib_options) module to control compression. Options may vary by node version.

### File Data

#### name `string` `required`

Sets the file name including internal path.

#### date `string|Date`

Sets the file date. This can be any valid date string or instance. Defaults to current time in locale.

#### store `boolean`

If true, file contents will be stored without compression.

#### comment `string`

Sets the file comment.

## Tar

### Options

#### recordSize `number`

Sets the size (in bytes) of each record in a block, default is 512 (for advanced users only).

#### recordsPerBlock `number`

Sets the number of records in a block, default is 20 (for advanced users only).

### File Data

#### name `string` `required`

Sets the file name including internal path.

#### date `string|Date`

Sets the file date. This can be any valid date string or instance. Defaults to current time in locale.

## Things of Interest

- [Examples](https://github.com/ctalkington/node-archiver/blob/master/examples)
- [Changelog](https://github.com/ctalkington/node-archiver/blob/master/CHANGELOG)
- [Archive Formats](https://github.com/ctalkington/node-archiver/blob/master/formats)
- [Contributing](https://github.com/ctalkington/node-archiver/blob/master/CONTRIBUTING.md)
- [MIT License](https://github.com/ctalkington/node-archiver/blob/master/LICENSE-MIT)

## Credits

Concept inspired by Antoine van Wel's [node-zipstream](https://github.com/wellawaretech/node-zipstream).

Tar inspired by isaacs's [node-tar](https://github.com/isaacs/node-tar).