doc/api/python/fileutils.FileScanner-class.html
author Simon Howkins <simonh@symbian.org>
Mon, 05 Oct 2009 15:17:20 +0100
changeset 587 97d29037659e
parent 432 f2ddfa555b0f
permissions -rw-r--r--
Added schema setting, so Diamonds should accept the data.

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        <a href="fileutils-module.html">Module&nbsp;fileutils</a> ::
        Class&nbsp;FileScanner
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class FileScanner</h1><span class="codelink"><a href="fileutils-pysrc.html#FileScanner">source&nbsp;code</a></span><br /><br />
<pre class="base-tree">
     object --+    
              |    
<a href="fileutils.AbstractScanner-class.html">AbstractScanner</a> --+
                  |
                 <strong class="uidshort">FileScanner</strong>
</pre>

<hr />
<p>Scans the filesystem for files that match the selection paths.</p>
<p>The scanner is configured with a root directory. Any number of include
and exclude paths can be added. The scan() method is a generator that
returns matching files one at a time when called as an iterator.</p>
<p>This is a revisited implementation of the filescanner. It now relies on
the module pathaddition.match that implements a Ant-like regular expression matcher.</p>
<p>Rules:
- Includes and excludes should not start with *
- Includes and excludes should not have wildcard searches ending with ** (e.g. wildcard**)</p>
<p>Supported includes and excludes:
- filename.txt
- filename.*
- dir/
- dir/*
- dir/**</p><br /><br />

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          <td><span class="summary-sig"><a href="fileutils.FileScanner-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>,
        <span class="summary-sig-arg">root_dir</span>)</span><br />
      Initialization.</td>
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            <span class="codelink"><a href="fileutils-pysrc.html#FileScanner.__init__">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a href="fileutils.FileScanner-class.html#scan" class="summary-sig-name">scan</a>(<span class="summary-sig-arg">self</span>)</span><br />
      Scans the files required to zip</td>
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            <span class="codelink"><a href="fileutils-pysrc.html#FileScanner.scan">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a href="fileutils.FileScanner-class.html#find_subroots" class="summary-sig-name">find_subroots</a>(<span class="summary-sig-arg">self</span>)</span><br />
      Finds all the subdirectory roots based on the include paths.</td>
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            <span class="codelink"><a href="fileutils-pysrc.html#FileScanner.find_subroots">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a href="fileutils.FileScanner-class.html#__str__" class="summary-sig-name">__str__</a>(<span class="summary-sig-arg">self</span>)</span><br />
      Returns a string representing this instance.</td>
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            <span class="codelink"><a href="fileutils-pysrc.html#FileScanner.__str__">source&nbsp;code</a></span>
            
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          <td><span class="summary-sig"><a href="fileutils.FileScanner-class.html#__repr__" class="summary-sig-name">__repr__</a>(<span class="summary-sig-arg">self</span>)</span><br />
      Returns a string representing this instance.</td>
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            <span class="codelink"><a href="fileutils-pysrc.html#FileScanner.__repr__">source&nbsp;code</a></span>
            
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    <p class="indent-wrapped-lines"><b>Inherited from <code><a href="fileutils.AbstractScanner-class.html">AbstractScanner</a></code></b>:
      <code><a href="fileutils.AbstractScanner-class.html#add_exclude">add_exclude</a></code>,
      <code><a href="fileutils.AbstractScanner-class.html#add_exclude_file">add_exclude_file</a></code>,
      <code><a href="fileutils.AbstractScanner-class.html#add_filetype">add_filetype</a></code>,
      <code><a href="fileutils.AbstractScanner-class.html#add_include">add_include</a></code>,
      <code><a href="fileutils.AbstractScanner-class.html#add_selector">add_selector</a></code>,
      <code><a href="fileutils.AbstractScanner-class.html#is_excluded">is_excluded</a></code>,
      <code><a href="fileutils.AbstractScanner-class.html#is_filetype">is_filetype</a></code>,
      <code><a href="fileutils.AbstractScanner-class.html#is_included">is_included</a></code>,
      <code><a href="fileutils.AbstractScanner-class.html#is_selected">is_selected</a></code>,
      <code><a href="fileutils.AbstractScanner-class.html#match">match</a></code>,
      <code><a href="fileutils.AbstractScanner-class.html#test_path">test_path</a></code>
      </p>
    <p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
      <code>__delattr__</code>,
      <code>__getattribute__</code>,
      <code>__hash__</code>,
      <code>__new__</code>,
      <code>__reduce__</code>,
      <code>__reduce_ex__</code>,
      <code>__setattr__</code>
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<a name="__init__"></a>
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>,
        <span class="sig-arg">root_dir</span>)</span>
    <br /><em class="fname">(Constructor)</em>
  </h3>
  </td><td align="right" valign="top"
    ><span class="codelink"><a href="fileutils-pysrc.html#FileScanner.__init__">source&nbsp;code</a></span>&nbsp;
    </td>
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  Initialization.
  <dl class="fields">
    <dt>Overrides:
      <a href="fileutils.AbstractScanner-class.html#__init__">AbstractScanner.__init__</a>
    </dt>
  </dl>
</td></tr></table>
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<a name="scan"></a>
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">scan</span>(<span class="sig-arg">self</span>)</span>
  </h3>
  </td><td align="right" valign="top"
    ><span class="codelink"><a href="fileutils-pysrc.html#FileScanner.scan">source&nbsp;code</a></span>&nbsp;
    </td>
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  Scans the files required to zip
  <dl class="fields">
    <dt>Overrides:
      <a href="fileutils.AbstractScanner-class.html#scan">AbstractScanner.scan</a>
    </dt>
  </dl>
</td></tr></table>
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<a name="find_subroots"></a>
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  <h3 class="epydoc"><span class="sig"><span class="sig-name">find_subroots</span>(<span class="sig-arg">self</span>)</span>
  </h3>
  </td><td align="right" valign="top"
    ><span class="codelink"><a href="fileutils-pysrc.html#FileScanner.find_subroots">source&nbsp;code</a></span>&nbsp;
    </td>
  </table>
  
  <p>Finds all the subdirectory roots based on the include paths.</p>
<p>Often large archive operations define a number of archives from the root
of the drive. Walking the tree from the root is very time-consuming, so
selecting more specific subdirectory roots improves performance.</p>
  <dl class="fields">
  </dl>
</td></tr></table>
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<a name="__str__"></a>
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    <br /><em class="fname">(Informal representation operator)</em>
  </h3>
  </td><td align="right" valign="top"
    ><span class="codelink"><a href="fileutils-pysrc.html#FileScanner.__str__">source&nbsp;code</a></span>&nbsp;
    </td>
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  Returns a string representing this instance.
  <dl class="fields">
    <dt>Overrides:
      <a href="fileutils.AbstractScanner-class.html#__str__">AbstractScanner.__str__</a>
        <dd><em class="note">(inherited documentation)</em></dd>
    </dt>
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    <br /><em class="fname">(Representation operator)</em>
  </h3>
  </td><td align="right" valign="top"
    ><span class="codelink"><a href="fileutils-pysrc.html#FileScanner.__repr__">source&nbsp;code</a></span>&nbsp;
    </td>
  </table>
  
  Returns a string representing this instance.
  <dl class="fields">
    <dt>Overrides:
      <a href="fileutils.AbstractScanner-class.html#__repr__">AbstractScanner.__repr__</a>
        <dd><em class="note">(inherited documentation)</em></dd>
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