## TarFileSet

TarFileSet has been added as a stand-alone type in Apache Ant 1.7.

A `<tarfileset>` is a special form of a `<fileset>` which can behave in 2 different ways :

- When the src attribute is used - or a nested resource collection has been specified, the tarfileset is populated with tar entries found in the file src.
- When the dir attribute is used, the tarfileset is populated with filesystem files found under dir.

`<tarfileset>` supports all attributes of `<fileset>` in addition to those listed below.

A tarfileset can be defined with the id attribute and referred to with the refid attribute. This is also true for tarfileset which has been added in Ant 1.7.

### Parameters

Attribute | Description | Required
prefix | all files in the fileset are prefixed with that path in the archive. | No
fullpath | the file described by the fileset is placed at that exact location in the archive. | No
src | may be used in place of the dir attribute to specify a tar file whose contents will be extracted and included in the archive. | No
filemode | A 3 digit octal string, specify the user, group and other modes in the standard Unix fashion. Only applies to plain files. Default is 644. | No
dirmode | A 3 digit octal string, specify the user, group and other modes in the standard Unix fashion. Only applies to directories. Default is 755. | No
username | The username for the tar entry. This is not the same as the UID. | No
group | The groupname for the tar entry. This is not the same as the GID. | No
uid | The user identifier (UID) for the tar entry. This is an integer value and is not the same as the username. | No
gid | The group identifier (GID) for the tar entry. | No
erroronmissingarchive | Specify what happens if the archive does not exist. If true, a build error will happen; if false, the fileset will be ignored/empty. Defaults to true. Since Ant 1.8.0 | No

The fullpath attribute can only be set for filesets that represent a single file. The prefix and fullpath attributes cannot both be set on the same fileset.

When using the src attribute, include and exclude patterns may be used to specify a subset of the archive for inclusion in the archive as with the dir attribute.

Please note that currently only the tar task uses the permission and ownership attributes.

### Parameters specified as nested elements

#### any resource or single element resource collection

The specified resource will be used as src.

#### Examples

>       <copy todir="some-dir">
>         <tarfileset includes="lib/**">
>           <bzip2resource>
>             <url url="http://example.org/dist/some-archive.tar.bz2"/>
>           </bzip2resource>
>         </tarfileset>
>       </copy>

downloads the archive some-archive.tar.bz2, uncompresses and extracts it on the fly, copies the contents of the lib directory into some-dir and discards the rest of the archive. File timestamps will be compared between the archive's entries and files inside the target directory, no files get overwritten unless they are out-of-date.