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                      <meta name="author" value="Adam Murdoch">
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      <title>Apache Myrmidon - VFS User Guide</title>
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          <td valign="bottom"><div align="right"><b><font size="+3" color="#525D76">Apache Myrmidon</font></b></div></td>
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                <p><strong>Myrmidon</strong></p>
    <ul>
          <li>      <a href="./index.html">Introduction</a>
  </li>
          <li>      <a href="./getinvolved.html">Get Involved</a>
  </li>
          <li>      <a href="./user.html">Building Myrmidon</a>
  </li>
          <li>      <a href="./todo.html">Todo List</a>
  </li>
        </ul>
      <p><strong>User Guide</strong></p>
    <ul>
          <li>      <a href="./buildfile.html">Build file</a>
  </li>
          <li>      <a href="./vfs.html">Virtual File System</a>
  </li>
          <li>      <a href="./ant1compat.html">Ant1 Compatibility Layer</a>
  </li>
        </ul>
      <p><strong>Extending Ant</strong></p>
    <ul>
          <li>      <a href="./task.html">Task Writers HOWTO</a>
  </li>
          <li>      <a href="./classloader.html">ClassLoader HOWTO</a>
  </li>
          <li>      <a href="./librarys.html">Library HOWTO</a>
  </li>
        </ul>
      <p><strong>Container Design</strong></p>
    <ul>
        </ul>
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        <a name="Handling Files"><strong>Handling Files</strong></a>
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      <blockquote>
                        <p>Myrmidon includes a Virtual File System (VFS), which allows files from
            different sources to be treated identically.  The VFS currently supports
            the following file types:</p>
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          File System
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          Description
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          URL Format
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          Local Files
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          Files on the local file system.
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          Three different formats are currently supported for local file names:
                        <ul>
                            <li><code>file://</code> <i>absolute-file-name</i></li>
                            <li>Absolute file names</li>
                            <li>Relative file names.  These are resolved relative to the
                            project's base directory.
                            </li>
                        </ul>
                    
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          Zip Files
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          The contents of Zip files (and Jar, War, and Ear files).
                    Currently, the VFS supports read-only access to Zip file contents.
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          <code>zip:</code> <i>zip-file-uri</i> [<code>!</code><i>absolute-path</i>]
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          FTP
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          Files on an FTP server.
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          <code>ftp://</code> [[<i>password</i><code>:</code>] <i>username</i><code>@</code>] <i>hostname</i> [<code>:</code><i>port</i>] [<i>absolute-path</i>]
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          SMB
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          Files on a CFIS server, such as Samba or Windows shares.
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          <code>smb://</code> [[<i>password</i><code>:</code>] <i>username</i><code>@</code>] <i>hostname</i> [<code>:</code><i>port</i>] [<i>absolute-path</i>]
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                                <p>Both forward or backward slashes can be used to separate the elements of
            a URL.</p>
                                <p>Here are some example URLs:</p>
                                <ul>
                <li><code>build/classes</code></li>
                <li><code>c:\program files\ant\bin</code></li>
                <li><code>file://C:/program files/ant</code></li>
                <li><code>zip:build/lib/ant.jar!/org/apache/tools</code></li>
                <li><code>ftp://adam@somehost/pub/downloads</code></li>
                <li><code>smb://password:adam@somehost/home/adam</code></li>
            </ul>
                                <p>Currently, there are only a handful of VFS aware tasks.  This will grow
            as more tasks are ported to the new API, and data types.</p>
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        <a name="File Sets"><strong>File Sets</strong></a>
      </font>
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      <blockquote>
                        <p>A file set in Myrmidon is more general than Ant 1's concept of a file set.
                Firstly, there is more than one type of file set.  Secondly, they are VFS enabled.
                File sets are automatically converted to a <a href="#Paths">path</a>, and so
                can be used anywhere that a path can.</p>
                                <h3><code>&lt;v-fileset&gt;</code></h3>
                                <p>This is the equivalent of Ant 1's <code>&lt;fileset&gt;</code> (The name
                is temporary, it will be changed to <code>&lt;fileset&gt;</code> once more
                porting work as been completed).</p>
                                <p>Rather than use a set of include and exclude patterns to choose the files
                that make up the file set, <code>&lt;v-fileset&gt;</code> takes zero or more
                <a href="#File Selectors">file selectors</a>.  File selectors can be used to
                select files based on any attribute of the file, rather than just the name.
                You can use <code>&lt;name&gt;</code> selectors to achieve the same result
                as using includes or excludes.</p>
                                <p>A <code>&lt;v-fileset&gt;</code> element takes the following attributes:</p>
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          Attribute
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          Description
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          Default Value
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    <font color="#000000" size="-1" face="arial,helvetica,sanserif">
          dir
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          The base directory for the file set.  This can be any URL that the
                        VFS supports.
        </font>
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                      <td bgcolor="#a0ddf0" colspan="" rowspan="" 
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          Required
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      </tr>
        </table>
                                <p>A <code>&lt;v-fileset&gt;</code> element takes any number of nested
                <a href="#File Selectors">file selector</a> elements.  To be included in the
                file set, a file must be selected by all the file selectors.  That is, the
                file selectors are implicitly AND-ed together.  If no file selector is provided,
                all the files and directories are included in the set.</p>
                                <p>An example:</p>
                                  <div align="left">
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        <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td>
        <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td>
        <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td>
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        <td bgcolor="#ffffff"><pre>

&lt;v-fileset dir=&quot;src&quot;&gt;
    &lt;name pattern=&quot;org/apache/tools/ant/**&quot;/&gt;
    &lt;is-file/&gt;
&lt;/v-fileset&gt;
</pre></td>
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        <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td>
        <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td>
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  </div>
                                <h3><code>&lt;flat-fileset&gt;</code></h3>
                                <p>This file set takes a set of nested file sets and paths, and flattens them
                into a single directory.  It can be used as a way of converting a path into a
                file set.  It can also be used as a replacement for the <code>flatten</code>
                attribute for the copy and move tasks.</p>
                                <p>A <code>&lt;flat-fileset&gt;</code> element takes no attributes, and a set
                of nested paths or file sets.</p>
                                <p>An example:</p>
                                  <div align="left">
    <table cellspacing="4" cellpadding="0" border="0">
      <tr>
        <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td>
        <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td>
        <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td>
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        <td bgcolor="#ffffff"><pre>

&lt;v-copy todir=&quot;dist/lib&quot;&gt;
  &lt;flat-fileset&gt;
    &lt;v-fileset dir=&quot;build/lib&quot;&gt;
      &lt;basename pattern=&quot;*.jar&quot;/&gt;
    &lt;v-fileset&gt;
    &lt;v-path path=&quot;${classpath}&quot;/&gt;
  &lt;/flat-fileset&gt;
&lt;/v-copy&gt;
</pre></td>
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        <td bgcolor="#023264" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td>
        <td bgcolor="#023264" width="1" height="1"><img src="/images/void.gif" width="1" height="1" vspace="0" hspace="0" border="0"/></td>
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  </div>
                                <h3><code>&lt;mapped-fileset&gt;</code></h3>
                                <p>A fileset that applies a <a href="buildfile.html#File Name Mappers">file name mapper</a>
                    to a nested fileset.
                </p>
                    </blockquote>
    </td></tr>
  </table>
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      <font color="#ffffff" face="arial,helvetica,sanserif">
        <a name="Paths"><strong>Paths</strong></a>
      </font>
    </td></tr>
    <tr><td>
      <blockquote>
                        <p>Paths are an ordered list of files.</p>
                                <h3><code>&lt;v-path&gt;</code></h3>
                                <p>This is the equivalent of Ant 1's <code>&lt;path&gt;</code>.</p>
                                <h3><code>&lt;filtered-path&gt;</code></h3>
                                <p>A path that applies file selectors to a set of nested file sets and paths.</p>
                    </blockquote>
    </td></tr>
  </table>
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      <font color="#ffffff" face="arial,helvetica,sanserif">
        <a name="File Selectors"><strong>File Selectors</strong></a>
      </font>
    </td></tr>
    <tr><td>
      <blockquote>
                        <p>File selectors are used to select files from file sets and paths.</p>
                                <h3><code>&lt;and&gt;</code></h3>
                                <p>Combines zero or more file selectors, using AND. An empty <code>&lt;and&gt;</code>
                selector accepts all files.</p>
                                <h3><code>&lt;basename&gt;</code></h3>
                                <p>Selects files whose base name matches an Ant 1 style pattern, or a regular
                expression.</p>
                                <h3><code>&lt;condition&gt;</code></h3>
                                <p>Takes a set of <a href="buildfile.html#Conditions">conditions</a>.  If
                the conditions evaluate to true, then select every file.  Otherwise,
                select no files.</p>
                                <h3><code>&lt;exists&gt;</code></h3>
                                <p>Selects files that exist.</p>
                                <h3><code>&lt;is-empty-folder&gt;</code></h3>
                                <p>Selects empty folders, that is, folders that have no children.</p>
                                <h3><code>&lt;is-folder&gt;</code></h3>
                                <p>Selects folders, does not select regular files.</p>
                                <h3><code>&lt;is-file&gt;</code></h3>
                                <p>Selects regular files, does not select folders.</p>
                                <h3><code>&lt;name&gt;</code></h3>
                                <p>Selects files whose path in a file set matches an Ant 1 style pattern, or
                a regular expression.</p>
                                <h3><code>&lt;not&gt;</code></h3>
                                <p>Selects files that are not selected by a nested file selector.</p>
                                <h3><code>&lt;or&gt;</code></h3>
                                <p>Combines zero or more file selectors, using OR. An empty <code>&lt;or&gt;</code>
                selector accepts all files.</p>
                                <h3><code>&lt;url&gt;</code></h3>
                                <p>Selects files whose URL matches an Ant 1 style pattern, or a regular expression.</p>
                    </blockquote>
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                    </blockquote>
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          Copyright &#169; 2000-2002, Apache Software Foundation
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