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Brian C. Lane 0773739e95 Update lorax 19.7.43 (lorax-composer) Documentation
2021-04-23 14:43:15 -07:00

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<h1>Source code for pylorax.yumhelper</h1><div class="highlight"><pre>
<span class="c">#</span>
<span class="c"># yumhelper.py</span>
<span class="c">#</span>
<span class="c"># Copyright (C) 2010 Red Hat, Inc.</span>
<span class="c">#</span>
<span class="c"># This program is free software; you can redistribute it and/or modify</span>
<span class="c"># it under the terms of the GNU General Public License as published by</span>
<span class="c"># the Free Software Foundation; either version 2 of the License, or</span>
<span class="c"># (at your option) any later version.</span>
<span class="c">#</span>
<span class="c"># This program is distributed in the hope that it will be useful,</span>
<span class="c"># but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<span class="c"># MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<span class="c"># GNU General Public License for more details.</span>
<span class="c">#</span>
<span class="c"># You should have received a copy of the GNU General Public License</span>
<span class="c"># along with this program. If not, see &lt;http://www.gnu.org/licenses/&gt;.</span>
<span class="c">#</span>
<span class="c"># Red Hat Author(s): Martin Gracik &lt;mgracik@redhat.com&gt;</span>
<span class="c">#</span>
<span class="kn">import</span> <span class="nn">logging</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="s">&quot;pylorax.yumhelper&quot;</span><span class="p">)</span>
<span class="kn">import</span> <span class="nn">re</span>
<span class="kn">import</span> <span class="nn">yum</span><span class="o">,</span> <span class="nn">yum.callbacks</span><span class="o">,</span> <span class="nn">yum.rpmtrans</span>
<span class="kn">import</span> <span class="nn">pylorax.output</span> <span class="kn">as</span> <span class="nn">output</span>
<span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s">&#39;LoraxDownloadCallback&#39;</span><span class="p">,</span> <span class="s">&#39;LoraxTransactionCallback&#39;</span><span class="p">,</span>
<span class="s">&#39;LoraxRpmCallback&#39;</span><span class="p">]</span>
<div class="viewcode-block" id="LoraxDownloadCallback"><a class="viewcode-back" href="../../pylorax.html#pylorax.yumhelper.LoraxDownloadCallback">[docs]</a><span class="k">class</span> <span class="nc">LoraxDownloadCallback</span><span class="p">(</span><span class="n">yum</span><span class="o">.</span><span class="n">callbacks</span><span class="o">.</span><span class="n">DownloadBaseCallback</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">yum</span><span class="o">.</span><span class="n">callbacks</span><span class="o">.</span><span class="n">DownloadBaseCallback</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span> <span class="o">=</span> <span class="n">output</span><span class="o">.</span><span class="n">LoraxOutput</span><span class="p">()</span>
<span class="n">pattern</span> <span class="o">=</span> <span class="s">r&quot;\((?P&lt;pkgno&gt;\d+)/(?P&lt;total&gt;\d+)\):\s+(?P&lt;pkgname&gt;.*)&quot;</span>
<span class="bp">self</span><span class="o">.</span><span class="n">pattern</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span><span class="n">pattern</span><span class="p">)</span>
<div class="viewcode-block" id="LoraxDownloadCallback.updateProgress"><a class="viewcode-back" href="../../pylorax.html#pylorax.yumhelper.LoraxDownloadCallback.updateProgress">[docs]</a> <span class="k">def</span> <span class="nf">updateProgress</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">frac</span><span class="p">,</span> <span class="n">fread</span><span class="p">,</span> <span class="n">ftime</span><span class="p">):</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="sd"> Update the progress bar</span>
<span class="sd"> @param name: filename</span>
<span class="sd"> @param frac: progress fraction (0 -&gt; 1)</span>
<span class="sd"> @param fread: formated string containing BytesRead</span>
<span class="sd"> @param ftime: formated string containing remaining or elapsed time</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">match</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">pattern</span><span class="o">.</span><span class="n">match</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
<span class="n">pkgno</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">total</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">pkgname</span> <span class="o">=</span> <span class="n">name</span>
<span class="k">if</span> <span class="n">match</span><span class="p">:</span>
<span class="n">pkgno</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">match</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="s">&quot;pkgno&quot;</span><span class="p">))</span>
<span class="n">total</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">match</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="s">&quot;total&quot;</span><span class="p">))</span>
<span class="n">pkgname</span> <span class="o">=</span> <span class="n">match</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="s">&quot;pkgname&quot;</span><span class="p">)</span>
<span class="n">info</span> <span class="o">=</span> <span class="s">&quot;({0:3d}/{1:3d}) [{2:3.0f}%] downloading &quot;</span>
<span class="n">info</span> <span class="o">=</span> <span class="n">info</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">pkgno</span><span class="p">,</span> <span class="n">total</span><span class="p">,</span> <span class="n">frac</span> <span class="o">*</span> <span class="mi">100</span><span class="p">)</span>
<span class="n">infolen</span><span class="p">,</span> <span class="n">pkglen</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">info</span><span class="p">),</span> <span class="nb">len</span><span class="p">(</span><span class="n">pkgname</span><span class="p">)</span>
<span class="k">if</span> <span class="p">(</span><span class="n">infolen</span> <span class="o">+</span> <span class="n">pkglen</span><span class="p">)</span> <span class="o">&gt;</span> <span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">width</span><span class="p">:</span>
<span class="n">pkgname</span> <span class="o">=</span> <span class="s">&quot;{0}...&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">pkgname</span><span class="p">[:</span><span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">width</span><span class="o">-</span><span class="n">infolen</span><span class="o">-</span><span class="mi">3</span><span class="p">])</span>
<span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;{0}&lt;b&gt;{1}&lt;/b&gt;</span><span class="se">\r</span><span class="s">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">info</span><span class="p">,</span> <span class="n">pkgname</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
<span class="k">if</span> <span class="n">frac</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">&quot;</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">)</span>
</div></div>
<div class="viewcode-block" id="LoraxTransactionCallback"><a class="viewcode-back" href="../../pylorax.html#pylorax.yumhelper.LoraxTransactionCallback">[docs]</a><span class="k">class</span> <span class="nc">LoraxTransactionCallback</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span> <span class="o">=</span> <span class="n">output</span><span class="o">.</span><span class="n">LoraxOutput</span><span class="p">()</span>
<div class="viewcode-block" id="LoraxTransactionCallback.event"><a class="viewcode-back" href="../../pylorax.html#pylorax.yumhelper.LoraxTransactionCallback.event">[docs]</a> <span class="k">def</span> <span class="nf">event</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">state</span><span class="p">,</span> <span class="n">data</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span>
<span class="k">if</span> <span class="n">state</span> <span class="o">==</span> <span class="n">yum</span><span class="o">.</span><span class="n">callbacks</span><span class="o">.</span><span class="n">PT_DOWNLOAD</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">&quot;downloading packages</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">state</span> <span class="o">==</span> <span class="n">yum</span><span class="o">.</span><span class="n">callbacks</span><span class="o">.</span><span class="n">PT_DOWNLOAD_PKGS</span><span class="p">:</span>
<span class="k">pass</span>
<span class="k">elif</span> <span class="n">state</span> <span class="o">==</span> <span class="n">yum</span><span class="o">.</span><span class="n">callbacks</span><span class="o">.</span><span class="n">PT_GPGCHECK</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">&quot;checking package signatures</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">state</span> <span class="o">==</span> <span class="n">yum</span><span class="o">.</span><span class="n">callbacks</span><span class="o">.</span><span class="n">PT_TEST_TRANS</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">&quot;running test transaction</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">)</span>
<span class="k">elif</span> <span class="n">state</span> <span class="o">==</span> <span class="n">yum</span><span class="o">.</span><span class="n">callbacks</span><span class="o">.</span><span class="n">PT_TRANSACTION</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">&quot;running transaction</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">)</span>
</div></div>
<div class="viewcode-block" id="LoraxRpmCallback"><a class="viewcode-back" href="../../pylorax.html#pylorax.yumhelper.LoraxRpmCallback">[docs]</a><span class="k">class</span> <span class="nc">LoraxRpmCallback</span><span class="p">(</span><span class="n">yum</span><span class="o">.</span><span class="n">rpmtrans</span><span class="o">.</span><span class="n">RPMBaseCallback</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">yum</span><span class="o">.</span><span class="n">rpmtrans</span><span class="o">.</span><span class="n">RPMBaseCallback</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span> <span class="o">=</span> <span class="n">output</span><span class="o">.</span><span class="n">LoraxOutput</span><span class="p">()</span>
<div class="viewcode-block" id="LoraxRpmCallback.event"><a class="viewcode-back" href="../../pylorax.html#pylorax.yumhelper.LoraxRpmCallback.event">[docs]</a> <span class="k">def</span> <span class="nf">event</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">package</span><span class="p">,</span> <span class="n">action</span><span class="p">,</span> <span class="n">te_current</span><span class="p">,</span> <span class="n">te_total</span><span class="p">,</span>
<span class="n">ts_current</span><span class="p">,</span> <span class="n">ts_total</span><span class="p">):</span>
<span class="n">action_str</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">action</span><span class="p">[</span><span class="n">action</span><span class="p">]</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s">&quot;utf-8&quot;</span><span class="p">)</span>
<span class="n">info</span> <span class="o">=</span> <span class="s">&quot;({0:3d}/{1:3d}) [{2:3.0f}%] {3} &quot;</span>
<span class="n">info</span> <span class="o">=</span> <span class="n">info</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">ts_current</span><span class="p">,</span> <span class="n">ts_total</span><span class="p">,</span>
<span class="nb">float</span><span class="p">(</span><span class="n">te_current</span><span class="p">)</span> <span class="o">/</span> <span class="nb">float</span><span class="p">(</span><span class="n">te_total</span><span class="p">)</span> <span class="o">*</span> <span class="mi">100</span><span class="p">,</span>
<span class="n">action_str</span><span class="o">.</span><span class="n">lower</span><span class="p">())</span>
<span class="n">pkg</span> <span class="o">=</span> <span class="s">&quot;{0}&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">package</span><span class="p">)</span>
<span class="n">infolen</span><span class="p">,</span> <span class="n">pkglen</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">info</span><span class="p">),</span> <span class="nb">len</span><span class="p">(</span><span class="n">pkg</span><span class="p">)</span>
<span class="k">if</span> <span class="p">(</span><span class="n">infolen</span> <span class="o">+</span> <span class="n">pkglen</span><span class="p">)</span> <span class="o">&gt;</span> <span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">width</span><span class="p">:</span>
<span class="n">pkg</span> <span class="o">=</span> <span class="s">&quot;{0}...&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">pkg</span><span class="p">[:</span><span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">width</span><span class="o">-</span><span class="n">infolen</span><span class="o">-</span><span class="mi">3</span><span class="p">])</span>
<span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;{0}&lt;b&gt;{1}&lt;/b&gt;</span><span class="se">\r</span><span class="s">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">info</span><span class="p">,</span> <span class="n">pkg</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">msg</span><span class="p">)</span>
<span class="k">if</span> <span class="n">te_current</span> <span class="o">==</span> <span class="n">te_total</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">&quot;</span><span class="se">\n</span><span class="s">&quot;</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="LoraxRpmCallback.filelog"><a class="viewcode-back" href="../../pylorax.html#pylorax.yumhelper.LoraxRpmCallback.filelog">[docs]</a> <span class="k">def</span> <span class="nf">filelog</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">package</span><span class="p">,</span> <span class="n">action</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">fileaction</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">action</span><span class="p">)</span> <span class="o">==</span> <span class="s">&quot;Installed&quot;</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s">&quot;</span><span class="si">%s</span><span class="s"> installed successfully&quot;</span><span class="p">,</span> <span class="n">package</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="LoraxRpmCallback.errorlog"><a class="viewcode-back" href="../../pylorax.html#pylorax.yumhelper.LoraxRpmCallback.errorlog">[docs]</a> <span class="k">def</span> <span class="nf">errorlog</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">msg</span><span class="p">):</span>
<span class="n">logger</span><span class="o">.</span><span class="n">warning</span><span class="p">(</span><span class="s">&quot;RPM transaction error: </span><span class="si">%s</span><span class="s">&quot;</span><span class="p">,</span> <span class="n">msg</span><span class="p">)</span>
</div>
<div class="viewcode-block" id="LoraxRpmCallback.scriptout"><a class="viewcode-back" href="../../pylorax.html#pylorax.yumhelper.LoraxRpmCallback.scriptout">[docs]</a> <span class="k">def</span> <span class="nf">scriptout</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">package</span><span class="p">,</span> <span class="n">msgs</span><span class="p">):</span>
<span class="k">if</span> <span class="n">msgs</span><span class="p">:</span>
<span class="n">logger</span><span class="o">.</span><span class="n">info</span><span class="p">(</span><span class="s">&quot;</span><span class="si">%s</span><span class="s"> scriptlet output:</span><span class="se">\n</span><span class="si">%s</span><span class="s">&quot;</span><span class="p">,</span> <span class="n">package</span><span class="p">,</span> <span class="n">msgs</span><span class="p">)</span></div></div>
</pre></div>
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