Package org.apache.tools.ant.taskdefs

# Class Tar

java.lang.Object
org.apache.tools.ant.ProjectComponent
org.apache.tools.ant.Task
org.apache.tools.ant.taskdefs.MatchingTask
org.apache.tools.ant.taskdefs.Tar

All Implemented Interfaces:
  `Cloneable`, `SelectorContainer`

public class Tar extends MatchingTask
Creates a tar archive.

Since:
  Ant 1.1

## Nested Class Summary

Nested Classes
Modifier and Type
Class
Description
`static final class`
`Tar.TarCompressionMethod`
Valid Modes for Compression attribute to Tar Task
`static class`
`Tar.TarFileSet`
This is a FileSet with the option to specify permissions and other attributes.
`static class`
`Tar.TarLongFileMode`
Set of options for long file handling in the task.

## Field Summary

Fields
Modifier and Type
Field
Description
`static final String`
`FAIL`
Deprecated.
since 1.5.x.
`static final String`
`GNU`
Deprecated.
since 1.5.x.
`static final String`
`OMIT`
Deprecated.
since 1.5.x.
`static final String`
`TRUNCATE`
Deprecated.
since 1.5.x.
`static final String`
`WARN`
Deprecated.
since 1.5.x.

### Fields inherited from class org.apache.tools.ant.taskdefs.MatchingTask

`fileset`

### Fields inherited from class org.apache.tools.ant.Task

`target, taskName, taskType, wrapper`

### Fields inherited from class org.apache.tools.ant.ProjectComponent

`description, location, project`

## Constructor Summary

Constructors
Constructor
Description
`Tar()`

## Method Summary

Modifier and Type
Method
Description
`void`
`add(ResourceCollection res)`
Add a collection of resources to archive.
`protected boolean`
`archiveIsUpToDate(String[] files)`
Deprecated.
since 1.5.x.
`protected boolean`
`archiveIsUpToDate(String[] files, File dir)`
Is the archive up to date in relationship to a list of files.
`protected boolean`
`archiveIsUpToDate(Resource r)`
Is the archive up to date in relationship to a list of files.
`protected Tar.TarFileSet`
`asTarFileSet(ArchiveFileSet archiveFileSet)`
Copies fullpath, prefix and permission attributes from the ArchiveFileSet to a new TarFileSet (or returns it unchanged if it already is a TarFileSet).
`protected boolean`
`check(File basedir, String[] files)`
Checks whether the archive is out-of-date with respect to the given files, ensures that the archive won't contain itself.
`protected boolean`
`check(File basedir, Collection<String> files)`
Checks whether the archive is out-of-date with respect to the given files, ensures that the archive won't contain itself.
`protected boolean`
`check(ResourceCollection rc)`
Checks whether the archive is out-of-date with respect to the resources of the given collection.
`Tar.TarFileSet`
`createTarFileSet()`
Add a new fileset with the option to specify permissions
`void`
`execute()`
do the business
`protected static String[]`
`getFileNames(FileSet fs)`
Grabs all included files and directors from the FileSet and returns them as an array of (relative) file names.
`protected static boolean`
`isFileFileSet(ResourceCollection rc)`
whether the given resource collection is a (subclass of) FileSet that only contains file system resources.
`void`
`setBasedir(File baseDir)`
This is the base directory to look in for things to tar.
`void`
`setCompression(Tar.TarCompressionMethod mode)`
Set compression method.
`void`
`setDestFile(File destFile)`
Set is the name/location of where to create the tar file.
`void`
`setEncoding(String encoding)`
Encoding to use for filenames, defaults to the platform's default encoding.
`void`
`setLongfile(String mode)`
Deprecated.
since 1.5.x.
`void`
`setLongfile(Tar.TarLongFileMode mode)`
Set how to handle long files, those with a path>100 chars.
`void`
`setTarfile(File tarFile)`
Deprecated.
since 1.5.x.
`protected boolean`
`supportsNonFileResources()`
Whether this task can deal with non-file resources.
`protected void`
`tar(ResourceCollection rc, TarOutputStream tOut)`
Adds the resources contained in this collection to the archive.
`protected void`
`tarFile(File file, TarOutputStream tOut, String vPath, Tar.TarFileSet tarFileSet)`
tar a file
`protected void`
`tarResource(Resource r, TarOutputStream tOut, String vPath, Tar.TarFileSet tarFileSet)`
tar a resource

### Methods inherited from class org.apache.tools.ant.taskdefs.MatchingTask

`add, addAnd, addContains, addContainsRegexp, addCustom, addDate, addDepend, addDepth, addDifferent, addFilename, addMajority, addModified, addNone, addNot, addOr, addPresent, addSelector, addSize, addType, appendSelector, createExclude, createExcludesFile, createInclude, createIncludesFile, createPatternSet, getDirectoryScanner, getImplicitFileSet, getSelectors, hasSelectors, selectorCount, selectorElements, setCaseSensitive, setDefaultexcludes, setExcludes, setExcludesfile, setFollowSymlinks, setIncludes, setIncludesfile, setProject, XsetIgnore, XsetItems`

### Methods inherited from class org.apache.tools.ant.Task

`bindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, init, isInvalid, log, log, log, log, maybeConfigure, perform, reconfigure, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType`

### Methods inherited from class org.apache.tools.ant.ProjectComponent

`clone, getDescription, getLocation, getProject, setDescription, setLocation`

### Methods inherited from class java.lang.Object

`equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

## Field Details

### WARN

@Deprecated public static final String WARN
Deprecated.
since 1.5.x. Tar.WARN is deprecated and is replaced with Tar.TarLongFileMode.WARN

See Also:
  - Constant Field Values

### FAIL

@Deprecated public static final String FAIL
Deprecated.
since 1.5.x. Tar.FAIL is deprecated and is replaced with Tar.TarLongFileMode.FAIL

See Also:
  - Constant Field Values

### TRUNCATE

@Deprecated public static final String TRUNCATE
Deprecated.
since 1.5.x. Tar.TRUNCATE is deprecated and is replaced with Tar.TarLongFileMode.TRUNCATE

See Also:
  - Constant Field Values

### GNU

@Deprecated public static final String GNU
Deprecated.
since 1.5.x. Tar.GNU is deprecated and is replaced with Tar.TarLongFileMode.GNU

See Also:
  - Constant Field Values

### OMIT

@Deprecated public static final String OMIT
Deprecated.
since 1.5.x. Tar.OMIT is deprecated and is replaced with Tar.TarLongFileMode.OMIT

See Also:
  - Constant Field Values

## Constructor Details

### Tar

public Tar()

## Method Details

### createTarFileSet

public Tar.TarFileSet createTarFileSet()
Add a new fileset with the option to specify permissions

Returns:
  the tar fileset to be used as the nested element.

### add

public void add(ResourceCollection res)
Add a collection of resources to archive.

Parameters:
  `res` - a resource collection to archive.
Since:
  Ant 1.7

### setTarfile

@Deprecated public void setTarfile(File tarFile)
Deprecated.
since 1.5.x. For consistency with other tasks, please use setDestFile().
Set is the name/location of where to create the tar file.

Parameters:
  `tarFile` - the location of the tar file.

### setDestFile

public void setDestFile(File destFile)
Set is the name/location of where to create the tar file.

Parameters:
  `destFile` - The output of the tar
Since:
  Ant 1.5

### setBasedir

public void setBasedir(File baseDir)
This is the base directory to look in for things to tar.

Parameters:
  `baseDir` - the base directory.

### setLongfile

@Deprecated public void setLongfile(String mode)
Deprecated.
since 1.5.x. setLongFile(String) is deprecated and is replaced with setLongFile(Tar.TarLongFileMode) to make Ant's Introspection mechanism do the work and also to encapsulate operations on the mode in its own class.
Set how to handle long files, those with a path>100 chars. Optional, default=warn.

Allowable values are

- truncate - paths are truncated to the maximum length
- fail - paths greater than the maximum cause a build exception
- warn - paths greater than the maximum cause a warning and GNU is used
- gnu - GNU extensions are used for any paths greater than the maximum.
- omit - paths greater than the maximum are omitted from the archive

Parameters:
  `mode` - the mode string to handle long files.

### setLongfile

public void setLongfile(Tar.TarLongFileMode mode)
Set how to handle long files, those with a path>100 chars. Optional, default=warn.

Allowable values are

- truncate - paths are truncated to the maximum length
- fail - paths greater than the maximum cause a build exception
- warn - paths greater than the maximum cause a warning and GNU is used
- gnu - extensions used by older versions of GNU tar are used for any paths greater than the maximum.
- posix - use POSIX PAX extension headers for any paths greater than the maximum. Supported by all modern tar implementations.
- omit - paths greater than the maximum are omitted from the archive

Parameters:
  `mode` - the mode to handle long file names.

### setCompression

public void setCompression(Tar.TarCompressionMethod mode)
Set compression method. Allowable values are

- none - no compression
- gzip - Gzip compression
- bzip2 - Bzip2 compression
- xz - XZ compression, requires XZ for Java

Parameters:
  `mode` - the compression method.

### setEncoding

public void setEncoding(String encoding)
Encoding to use for filenames, defaults to the platform's default encoding.

For a list of possible values see https://docs.oracle.com/javase/8/docs/technotes/guides/intl/encoding.doc.html.

Parameters:
  `encoding` - the encoding name
Since:
  Ant 1.9.5

### execute

public void execute() throws BuildException
do the business

Overrides:
  `execute` in class `Task`
Throws:
  `BuildException` - on error

### tarFile

protected void tarFile(File file, TarOutputStream tOut, String vPath, Tar.TarFileSet tarFileSet) throws IOException
tar a file

Parameters:
  `file` - the file to tar
  `tOut` - the output stream
  `vPath` - the path name of the file to tar
  `tarFileSet` - the fileset that the file came from.
Throws:
  `IOException` - on error

### tarResource

protected void tarResource(Resource r, TarOutputStream tOut, String vPath, Tar.TarFileSet tarFileSet) throws IOException
tar a resource

Parameters:
  `r` - the resource to tar
  `tOut` - the output stream
  `vPath` - the path name of the file to tar
  `tarFileSet` - the fileset that the file came from, may be null.
Throws:
  `IOException` - on error
Since:
  Ant 1.7

### archiveIsUpToDate

@Deprecated protected boolean archiveIsUpToDate(String[] files)
Deprecated.
since 1.5.x. use the two-arg version instead.
Is the archive up to date in relationship to a list of files.

Parameters:
  `files` - the files to check
Returns:
  true if the archive is up to date.

### archiveIsUpToDate

protected boolean archiveIsUpToDate(String[] files, File dir)
Is the archive up to date in relationship to a list of files.

Parameters:
  `files` - the files to check
  `dir` - the base directory for the files.
Returns:
  true if the archive is up to date.
Since:
  Ant 1.5.2

### archiveIsUpToDate

protected boolean archiveIsUpToDate(Resource r)
Is the archive up to date in relationship to a list of files.

Parameters:
  `r` - the files to check
Returns:
  true if the archive is up to date.
Since:
  Ant 1.7

### supportsNonFileResources

protected boolean supportsNonFileResources()
Whether this task can deal with non-file resources.

This implementation returns true only if this task is <tar>. Any subclass of this class that also wants to support non-file resources needs to override this method. We need to do so for backwards compatibility reasons since we can't expect subclasses to support resources.

Returns:
  true for this task.
Since:
  Ant 1.7

### check

protected boolean check(ResourceCollection rc)
Checks whether the archive is out-of-date with respect to the resources of the given collection.

Also checks that either all collections only contain file resources or this class supports non-file collections.

And - in case of file-collections - ensures that the archive won't contain itself.

Parameters:
  `rc` - the resource collection to check
Returns:
  whether the archive is up-to-date
Since:
  Ant 1.7

### check

protected boolean check(File basedir, String[] files)

Checks whether the archive is out-of-date with respect to the given files, ensures that the archive won't contain itself.

Parameters:
  `basedir` - base directory for file names
  `files` - array of relative file names
Returns:
  whether the archive is up-to-date
Since:
  Ant 1.7

### check

protected boolean check(File basedir, Collection<String> files)

Checks whether the archive is out-of-date with respect to the given files, ensures that the archive won't contain itself.

Parameters:
  `basedir` - base directory for file names
  `files` - array of relative file names
Returns:
  whether the archive is up-to-date
Since:
  Ant 1.9.5
See Also:
  - `check(File, String[])`

### tar

protected void tar(ResourceCollection rc, TarOutputStream tOut) throws IOException
Adds the resources contained in this collection to the archive.

Uses the file based methods for file resources for backwards compatibility.

Parameters:
  `rc` - the collection containing resources to add
  `tOut` - stream writing to the archive.
Throws:
  `IOException` - on error.
Since:
  Ant 1.7

### isFileFileSet

protected static boolean isFileFileSet(ResourceCollection rc)
whether the given resource collection is a (subclass of) FileSet that only contains file system resources.

Parameters:
  `rc` - the resource collection to check.
Returns:
  true if the collection is a fileset.
Since:
  Ant 1.7

### getFileNames

protected static String[] getFileNames(FileSet fs)
Grabs all included files and directors from the FileSet and returns them as an array of (relative) file names.

Parameters:
  `fs` - the fileset to operate on.
Returns:
  a list of the filenames.
Since:
  Ant 1.7

### asTarFileSet

protected Tar.TarFileSet asTarFileSet(ArchiveFileSet archiveFileSet)
Copies fullpath, prefix and permission attributes from the ArchiveFileSet to a new TarFileSet (or returns it unchanged if it already is a TarFileSet).

Parameters:
  `archiveFileSet` - fileset to copy attributes from, may be null
Returns:
  a new TarFileSet.
Since:
  Ant 1.7