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<h2><a name="delete">Delete</a></h2>
<h3>Description</h3>
<p>Deletes a single file, a specified directory and all its files and
subdirectories, or a set of files specified by one or more
<a href="../Types/resources.html#collection">resource collection</a>s.
The literal implication of <code>&lt;fileset&gt;</code> is that
directories are not included; however the removal of empty directories can
be triggered when using nested filesets by setting the
<code>includeEmptyDirs</code> attribute to <i>true</i>. Note that this
attribute is meaningless in the context of any of the various resource
collection types that <i>do</i> include directories, but that no attempt
will be made to delete non-empty directories in any case.  Whether a
directory is empty or not is decided by looking into the filesystem -
include or exclude patterns don't apply here.</p>
<p>
If you use this task to delete temporary files created by editors
and it doesn't seem to work, read up on the
<a href="../dirtasks.html#defaultexcludes">default exclusion set</a>
in <strong>Directory-based Tasks</strong>, and see the
<code>defaultexcludes</code> attribute below.

<p>For historical reasons <code>&lt;delete dir="x"/&gt;</code> is
  different from <code>&lt;delete&gt;&lt;fileset
  dir="x"/&gt;&lt;/delete&gt;</code>, it will try to remove everything
  inside "x" including "x" itself, not taking default excludes into
  account, blindly following all symbolic links.  If you need more
  control, use a nested <code>&lt;fileset&gt;</code>.</p>

<h3>Parameters</h3>
<table border="1" cellpadding="2" cellspacing="0">
  <tr>
    <td valign="top"><b>Attribute</b></td>
    <td valign="top"><b>Description</b></td>
    <td align="center" valign="top"><b>Required</b></td>
  </tr>
  <tr>
    <td valign="top">file</td>
    <td valign="top">The file to delete, specified as either the simple
     filename (if the file exists in the current base directory), a
     relative-path filename, or a full-path filename.</td>
    <td align="center" valign="middle" rowspan="2">At least one of the two,
     unless nested resource collections are specified
  </tr>
  <tr>
    <td valign="top">dir</td>
    <td valign="top">The directory to delete, including all its files and
     subdirectories.<br>
     <b>Note:</b> <code>dir</code> is <em>not</em> used
     to specify a directory name for <code>file</code>; <code>file</code>
     and <code>dir</code> are independent of each other.<br>
     <b>WARNING:</b> Do <b>not</b> set <code>dir</code> to
     <code>&quot;.&quot;</code>, <code>&quot;${basedir}&quot;</code>,
     or the full-pathname equivalent unless you truly <em>intend</em> to
     recursively remove the entire contents of the current base directory
     (and the base directory itself, if different from the current working
     directory).</td>
  </tr>
  <tr>
    <td valign="top">verbose</td>
    <td valign="top">Whether to show the name of each deleted file.</td>
    <td align="center" valign="top">No, default &quot;false&quot;</i></td>
  </tr>
  <tr>
    <td valign="top">quiet</td>
    <td valign="top">If the specified file or directory does not exist,
     do not display a diagnostic message (unless Apache Ant
     has been invoked with the <code>-verbose</code> or
     <code>-debug</code> switches) or modify the exit status to
     reflect an error.
     When set to &quot;true&quot;, if a file or directory cannot be deleted,
     no error is reported. This setting emulates the
     <code>-f</code> option to the Unix <em>rm</em> command.
     Setting this to &quot;true&quot; implies setting
     <code>failonerror</code> to &quot;false&quot;.
    </td>
    <td align="center" valign="top">No, default &quot;false&quot;</td>
  </tr>
  <tr>
    <td valign="top">failonerror</td>
    <td valign="top">Controls whether an error (such as a failure to
    delete a file) stops the build or is merely reported to the screen.
    Only relevant if <code>quiet</code> is &quot;false&quot;.</td>
    <td align="center" valign="top">No, default &quot;true&quot;</td>
  </tr>
  <tr>
    <td valign="top">includeemptydirs</td>
    <td valign="top">Whether to delete empty directories
                     when using filesets.</td>
    <td align="center" valign="top">No, default &quot;false&quot;</td>
  </tr>
  <tr>
    <td valign="top">includes</td>
    <td valign="top"><em>Deprecated.</em>  Use resource collections.
      Comma- or space-separated list of patterns of
      files that must be deleted. All files are relative to the directory
      specified in <code>dir</code>.</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">includesfile</td>
    <td valign="top"><em>Deprecated.</em>  Use resource collections.
      The name of a file. Each line of
      this file is taken to be an include pattern.</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">excludes</td>
    <td valign="top"><em>Deprecated.</em>  Use resource collections.
      Comma- or space-separated list of patterns of
      files that must be excluded from the deletion list.
      All files are relative to the directory specified in <code>dir</code>.
      No files (except default excludes) are excluded when omitted.</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">excludesfile</td>
    <td valign="top"><em>Deprecated.</em>  Use resource collections.
      The name of a file. Each line of
      this file is taken to be an exclude pattern</td>
    <td valign="top" align="center">No</td>
  </tr>
  <tr>
    <td valign="top">defaultexcludes</td>
    <td valign="top"><em>Deprecated.</em>  Use resource collections.
      Whether to use <a href="../dirtasks.html#defaultexcludes">
      default excludes.</a></td>
    <td align="center" valign="top">No, default &quot;true&quot;</td>
  </tr>
  <tr>
    <td valign="top">deleteonexit</td>
    <td valign="top">
      Indicates whether to use File#deleteOnExit() if there is a
      failure to delete a file, this causes the jvm to attempt
      to delete the file when the jvm process is terminating.
      <em>Since Ant 1.6.2</em></td>
    <td align="center" valign="top">No, default &quot;false&quot;</td>
  </tr>
  <tr>
    <td valign="top">removeNotFollowedSymlinks</td>
    <td valign="top">
      Whether symbolic links (not the files/directories they link to)
      should be removed if they haven't been followed because
      followSymlinks was false or the maximum number of symbolic links
      was too big.
      <em>Since Ant 1.8.0</em></td>
    <td align="center" valign="top">No, default &quot;false&quot;</td>
  </tr>
  <tr>
    <td valign="top">performGCOnFailedDelete</td>
    <td valign="top">
      If Ant fails to delete a file or directory it will retry the
      operation once.  If this flag is set to true it will perform a
      garbage collection before retrying the delete.<br/>
      Setting this flag to true is known to resolve some problems on
      Windows (where it defaults to true) but also for directory trees
      residing on an NFS share.
      <em>Since Ant 1.8.3</em></td>
    <td align="center" valign="top">No, default &quot;true&quot; on
      Windows and &quot;true&quot; on any other OS.</td>
  </tr>
</table>

<h3>Examples</h3>
<pre>  &lt;delete file=&quot;/lib/ant.jar&quot;/&gt;</pre>
<p>deletes the file <code>/lib/ant.jar</code>.</p>
<pre>  &lt;delete dir=&quot;lib&quot;/&gt;</pre>
<p>deletes the <code>lib</code> directory, including all files
and subdirectories of <code>lib</code>.</p>

<pre>  &lt;delete&gt;
    &lt;fileset dir=&quot;.&quot; includes=&quot;**/*.bak&quot;/&gt;
  &lt;/delete&gt;
</pre>
<p>deletes all files with the extension <code>.bak</code> from the current directory
and any subdirectories.</p>

<pre>  &lt;delete includeEmptyDirs=&quot;true&quot;&gt;
    &lt;fileset dir=&quot;build&quot;/&gt;
  &lt;/delete&gt;
</pre>
<p>deletes all files and subdirectories of <code>build</code>, including
<code>build</code> itself.</p>

<pre>  &lt;delete includeemptydirs=&quot;true&quot;&gt;
    &lt;fileset dir=&quot;build&quot; includes=&quot;**/*&quot;/&gt;
  &lt;/delete&gt;
</pre>
<p>deletes all files and subdirectories of <code>build</code>, without
<code>build</code> itself.</p>

<pre>  &lt;delete includeemptydirs=&quot;true&quot;&gt;
    &lt;fileset dir=&quot;src&quot; includes=&quot;**/.svn/&quot; defaultexcludes=&quot;false&quot;/&gt;
  &lt;/delete&gt;
</pre>
<p>deletes the subversion metadata directories under <code>src</code>. Because <code>.svn</code>
is on of the <a href="../dirtasks.html#defaultexcludes">default excludes</a> you have to use the 
<code>defaultexcludes</code> flag, otherwise Ant wont delete these directories and the files in it.</p>


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