Bug 1661: Improve build speed with better caching strategy
Changed the way that the cache is located, so the same code can run on any build machine without any configuration.
Made work around for Bug 419 the only option, as we're not using the alternative anyway, and I don't want to commit completely untested code!
Changed caching algorithm, to improve build times.
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<a href="fileutils-module.html">Module fileutils</a> ::
Class AbstractScanner
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class AbstractScanner</h1><span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner">source code</a></span><br /><br />
<pre class="base-tree">
object --+
|
<strong class="uidshort">AbstractScanner</strong>
</pre>
<hr />
This class implements all the required infrastructure for filescanning.<br /><br />
<!-- ==================== INSTANCE METHODS ==================== -->
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a href="fileutils.AbstractScanner-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">self</span>)</span><br />
Initialization.</td>
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<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.__init__">source code</a></span>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a name="add_include"></a><span class="summary-sig-name">add_include</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">include</span>)</span><br />
Adds an include path to the scanner.</td>
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<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.add_include">source code</a></span>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a name="add_exclude"></a><span class="summary-sig-name">add_exclude</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">exclude</span>)</span><br />
Adds an exclude path to the scanner.</td>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.add_exclude">source code</a></span>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a name="add_exclude_file"></a><span class="summary-sig-name">add_exclude_file</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">exclude</span>)</span><br />
Adds an exclude file to the scanner.</td>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.add_exclude_file">source code</a></span>
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<span class="summary-type"> </span>
</td><td class="summary">
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<td><span class="summary-sig"><a name="add_selector"></a><span class="summary-sig-name">add_selector</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">selector</span>)</span><br />
Add selector to the scanner.</td>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.add_selector">source code</a></span>
</td>
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<span class="summary-type"> </span>
</td><td class="summary">
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<td><span class="summary-sig"><a name="add_filetype"></a><span class="summary-sig-name">add_filetype</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">filetype</span>)</span><br />
Adds a filetype selection to the scanner.</td>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.add_filetype">source code</a></span>
</td>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a name="is_included"></a><span class="summary-sig-name">is_included</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">path</span>)</span><br />
Returns if path is included by the scanner.</td>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.is_included">source code</a></span>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a name="is_excluded"></a><span class="summary-sig-name">is_excluded</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">path</span>)</span><br />
Returns if path is excluded by the scanner.</td>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.is_excluded">source code</a></span>
</td>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a name="is_selected"></a><span class="summary-sig-name">is_selected</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">path</span>)</span><br />
Returns if path is selected by all selectors in the scanner.</td>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.is_selected">source code</a></span>
</td>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a name="is_filetype"></a><span class="summary-sig-name">is_filetype</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">path</span>)</span><br />
Test if a file matches one filetype.</td>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.is_filetype">source code</a></span>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a name="match"></a><span class="summary-sig-name">match</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">filename</span>,
<span class="summary-sig-arg">pattern</span>)</span><br />
Is filename matching pattern?</td>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.match">source code</a></span>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a name="test_path"></a><span class="summary-sig-name">test_path</span>(<span class="summary-sig-arg">self</span>,
<span class="summary-sig-arg">root</span>,
<span class="summary-sig-arg">relpath</span>)</span><br />
Test if a path matches filetype, include, exclude, and selection process.</td>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.test_path">source code</a></span>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a href="fileutils.AbstractScanner-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>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.__str__">source code</a></span>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a href="fileutils.AbstractScanner-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>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.__repr__">source code</a></span>
</td>
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<span class="summary-type"> </span>
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<td><span class="summary-sig"><a name="scan"></a><span class="summary-sig-name">scan</span>(<span class="summary-sig-arg">self</span>)</span><br />
Abstract method which much be overriden to implement the scanning process.</td>
<td align="right" valign="top">
<span class="codelink"><a href="fileutils-pysrc.html#AbstractScanner.scan">source code</a></span>
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<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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<h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">self</span>)</span>
<br /><em class="fname">(Constructor)</em>
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Initialization.
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<br /><em class="fname">(Informal representation operator)</em>
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<br /><em class="fname">(Representation operator)</em>
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</td><td align="right" valign="top"
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Returns a string representing this instance.
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