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<div class="section" id="introduction">
<h1>Introduction<a class="headerlink" href="#introduction" title="Permalink to this headline">¶</a></h1>
<div class="section" id="overview">
<h2>Overview<a class="headerlink" href="#overview" title="Permalink to this headline">¶</a></h2>
<p>Auto dependency builder is a tool for analysis files accessed during
building a package. It also can be used for runtime dependencies analysis.</p>
<p>The tool can block an access to files of defined packages.</p>
<p>It is released under GNU GPL license.</p>
</div>
<div class="section" id="status">
<h2>Status<a class="headerlink" href="#status" title="Permalink to this headline">¶</a></h2>
<p>Autodep is in active developing.</p>
</div>
<div class="section" id="installing">
<h2>Installing<a class="headerlink" href="#installing" title="Permalink to this headline">¶</a></h2>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">TODO: make an overlay and ebuild</p>
</div>
</div>
<div class="section" id="running">
<h2>Running<a class="headerlink" href="#running" title="Permalink to this headline">¶</a></h2>
<div class="highlight-none"><div class="highlight"><pre>showfsevents.py [options] <command>
</pre></div>
</div>
<dl class="cmdoption">
<dt id="cmdoption-showfsevents.py--help">
<tt class="descname">--help</tt><tt class="descclassname"></tt><tt class="descclassname">, </tt><tt class="descname">-h</tt><tt class="descclassname"></tt><a class="headerlink" href="#cmdoption-showfsevents.py--help" title="Permalink to this definition">¶</a></dt>
<dd><p>show this help message and exit</p>
</dd></dl>
<dl class="cmdoption">
<dt id="cmdoption-showfsevents.py-b">
<tt class="descname">-b</tt><tt class="descclassname"> PACKAGES</tt><tt class="descclassname">, </tt><tt class="descname">--block</tt><tt class="descclassname">=PACKAGES</tt><a class="headerlink" href="#cmdoption-showfsevents.py-b" title="Permalink to this definition">¶</a></dt>
<dd><p>block an access to files from this packages</p>
</dd></dl>
<dl class="cmdoption">
<dt id="cmdoption-showfsevents.py-f">
<tt class="descname">-f</tt><tt class="descclassname"> </tt><tt class="descclassname">, </tt><tt class="descname">--files</tt><tt class="descclassname"></tt><a class="headerlink" href="#cmdoption-showfsevents.py-f" title="Permalink to this definition">¶</a></dt>
<dd><p>show accessed files and not founded files</p>
</dd></dl>
<dl class="cmdoption">
<dt id="cmdoption-showfsevents.py-v">
<tt class="descname">-v</tt><tt class="descclassname"> </tt><tt class="descclassname">, </tt><tt class="descname">--verbose</tt><tt class="descclassname"></tt><a class="headerlink" href="#cmdoption-showfsevents.py-v" title="Permalink to this definition">¶</a></dt>
<dd><p>show non-important packages, show unknown package and unknown stage</p>
</dd></dl>
<dl class="cmdoption">
<dt id="cmdoption-showfsevents.py-C">
<tt class="descname">-C</tt><tt class="descclassname"> </tt><tt class="descclassname">, </tt><tt class="descname">--nocolor</tt><tt class="descclassname"></tt><a class="headerlink" href="#cmdoption-showfsevents.py-C" title="Permalink to this definition">¶</a></dt>
<dd><p>don’t output color</p>
</dd></dl>
<dl class="cmdoption">
<dt id="cmdoption-showfsevents.py--hooklib">
<tt class="descname">--hooklib</tt><tt class="descclassname"></tt><a class="headerlink" href="#cmdoption-showfsevents.py--hooklib" title="Permalink to this definition">¶</a></dt>
<dd><p>use ld_preload logging approach(default)</p>
</dd></dl>
<dl class="cmdoption">
<dt id="cmdoption-showfsevents.py--fusefs">
<tt class="descname">--fusefs</tt><tt class="descclassname"></tt><a class="headerlink" href="#cmdoption-showfsevents.py--fusefs" title="Permalink to this definition">¶</a></dt>
<dd><p>use fuse logging approach(slow, but reliable)</p>
</dd></dl>
<p>Example: showfsevents.py -b lsof,cowsay emerge bash</p>
</div>
<div class="section" id="hooklib-vs-fusefs">
<h2>Hooklib vs Fusefs<a class="headerlink" href="#hooklib-vs-fusefs" title="Permalink to this headline">¶</a></h2>
<table border="1" class="docutils">
<colgroup>
<col width="63%" />
<col width="17%" />
<col width="20%" />
</colgroup>
<thead valign="bottom">
<tr><th class="head"> </th>
<th class="head">Hooklib</th>
<th class="head">Fusefs</th>
</tr>
</thead>
<tbody valign="top">
<tr><td>Who can use this approach?</td>
<td><strong>Any user</strong></td>
<td>Only root</td>
</tr>
<tr><td>Is approach allows blocking an access to files?</td>
<td><strong>YES</strong></td>
<td><strong>YES</strong></td>
</tr>
<tr><td>Is overhead in performance big?</td>
<td><strong>NO</strong></td>
<td>YES <a class="footnote-reference" href="#f1" id="id1">[1]</a></td>
</tr>
<tr><td>What events are logged?</td>
<td>Most <a class="footnote-reference" href="#f2" id="id2">[2]</a></td>
<td><strong>ALL</strong></td>
</tr>
<tr><td>When is it recomended to use an approach?</td>
<td>For analysis
of
<em>buildtime</em>
dependencies</td>
<td>For analysis
of <em>runtime</em>
dependencies</td>
</tr>
<tr><td>Is any pre-requirements for using an approach?</td>
<td><strong>NO</strong></td>
<td>FUSE must be
enabled in
kernel</td>
</tr>
</tbody>
</table>
<p class="rubric">Notes</p>
<table class="docutils footnote" frame="void" id="f1" rules="none">
<colgroup><col class="label" /><col /></colgroup>
<tbody valign="top">
<tr><td class="label"><a class="fn-backref" href="#id1">[1]</a></td><td>Fuse file system is slower than normal one. Program reads many files
while launching, so this will take more time than usual.</td></tr>
</tbody>
</table>
<table class="docutils footnote" frame="void" id="f2" rules="none">
<colgroup><col class="label" /><col /></colgroup>
<tbody valign="top">
<tr><td class="label"><a class="fn-backref" href="#id2">[2]</a></td><td>Loading of dynamic libraries and direct syscalls will not be logged.</td></tr>
</tbody>
</table>
</div>
<div class="section" id="examples">
<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline">¶</a></h2>
<p class="rubric">1. Get the potential dependencies of a xchat package:</p>
<div class="highlight-none"><div class="highlight"><pre>showfsevents.py emerge xchat
</pre></div>
</div>
<p class="rubric">2. Get the potential dependencies of a xchat package, blocking
x11-misc/util-macros package:</p>
<div class="highlight-none"><div class="highlight"><pre>showfsevents.py emerge --block x11-misc/util-macros emerge xchat
</pre></div>
</div>
<p class="rubric">3. Get the potential dependencies of a xchat package, and show files
accessed:</p>
<div class="highlight-none"><div class="highlight"><pre>showfsevents.py --files emerge xchat
</pre></div>
</div>
<p class="rubric">4. Get the runtime dependencies of a xchat and show files
accessed:</p>
<div class="highlight-none"><div class="highlight"><pre>showfsevents.py --fusefs --files xchat
</pre></div>
</div>
</div>
<div class="section" id="indices-and-tables">
<h2>Indices and tables<a class="headerlink" href="#indices-and-tables" title="Permalink to this headline">¶</a></h2>
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<li><a class="reference internal" href="#overview">Overview</a></li>
<li><a class="reference internal" href="#status">Status</a></li>
<li><a class="reference internal" href="#installing">Installing</a></li>
<li><a class="reference internal" href="#running">Running</a></li>
<li><a class="reference internal" href="#hooklib-vs-fusefs">Hooklib vs Fusefs</a></li>
<li><a class="reference internal" href="#examples">Examples</a></li>
<li><a class="reference internal" href="#indices-and-tables">Indices and tables</a></li>
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