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<h1>Source code for pylorax.api.utils</h1><div class="highlight"><pre>
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<span></span><span class="c1">#</span>
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<span class="c1"># Copyright (C) 2019 Red Hat, Inc.</span>
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<span class="c1">#</span>
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<span class="c1"># This program is free software; you can redistribute it and/or modify</span>
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<span class="c1"># it under the terms of the GNU General Public License as published by</span>
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<span class="c1"># the Free Software Foundation; either version 2 of the License, or</span>
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<span class="c1"># (at your option) any later version.</span>
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<span class="c1">#</span>
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<span class="c1"># This program is distributed in the hope that it will be useful,</span>
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<span class="c1"># but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
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<span class="c1"># MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
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<span class="c1"># GNU General Public License for more details.</span>
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<span class="c1">#</span>
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<span class="c1"># You should have received a copy of the GNU General Public License</span>
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<span class="c1"># along with this program. If not, see <http://www.gnu.org/licenses/>.</span>
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<span class="sd">""" API utility functions</span>
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<span class="sd">"""</span>
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<span class="kn">from</span> <span class="nn">pylorax.api.recipes</span> <span class="k">import</span> <span class="n">RecipeError</span><span class="p">,</span> <span class="n">RecipeFileError</span><span class="p">,</span> <span class="n">read_recipe_commit</span>
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<div class="viewcode-block" id="take_limits"><a class="viewcode-back" href="../../../pylorax.api.html#pylorax.api.utils.take_limits">[docs]</a><span class="k">def</span> <span class="nf">take_limits</span><span class="p">(</span><span class="n">iterable</span><span class="p">,</span> <span class="n">offset</span><span class="p">,</span> <span class="n">limit</span><span class="p">):</span>
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<span class="sd">""" Apply offset and limit to an iterable object</span>
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<span class="sd"> :param iterable: The object to limit</span>
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<span class="sd"> :type iterable: iter</span>
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<span class="sd"> :param offset: The number of items to skip</span>
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<span class="sd"> :type offset: int</span>
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<span class="sd"> :param limit: The total number of items to return</span>
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<span class="sd"> :type limit: int</span>
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<span class="sd"> :returns: A subset of the iterable</span>
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<span class="sd"> """</span>
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<span class="k">return</span> <span class="n">iterable</span><span class="p">[</span><span class="n">offset</span><span class="p">:][:</span><span class="n">limit</span><span class="p">]</span></div>
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<div class="viewcode-block" id="blueprint_exists"><a class="viewcode-back" href="../../../pylorax.api.html#pylorax.api.utils.blueprint_exists">[docs]</a><span class="k">def</span> <span class="nf">blueprint_exists</span><span class="p">(</span><span class="n">api</span><span class="p">,</span> <span class="n">branch</span><span class="p">,</span> <span class="n">blueprint_name</span><span class="p">):</span>
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<span class="sd">"""Return True if the blueprint exists</span>
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<span class="sd"> :param api: flask object</span>
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<span class="sd"> :type api: Flask</span>
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<span class="sd"> :param branch: Branch name</span>
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<span class="sd"> :type branch: str</span>
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<span class="sd"> :param recipe_name: Recipe name to read</span>
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<span class="sd"> :type recipe_name: str</span>
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<span class="sd"> """</span>
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<span class="k">try</span><span class="p">:</span>
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<span class="k">with</span> <span class="n">api</span><span class="o">.</span><span class="n">config</span><span class="p">[</span><span class="s2">"GITLOCK"</span><span class="p">]</span><span class="o">.</span><span class="n">lock</span><span class="p">:</span>
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<span class="n">read_recipe_commit</span><span class="p">(</span><span class="n">api</span><span class="o">.</span><span class="n">config</span><span class="p">[</span><span class="s2">"GITLOCK"</span><span class="p">]</span><span class="o">.</span><span class="n">repo</span><span class="p">,</span> <span class="n">branch</span><span class="p">,</span> <span class="n">blueprint_name</span><span class="p">)</span>
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<span class="k">return</span> <span class="kc">True</span>
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<span class="k">except</span> <span class="p">(</span><span class="n">RecipeError</span><span class="p">,</span> <span class="n">RecipeFileError</span><span class="p">):</span>
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<span class="k">return</span> <span class="kc">False</span></div>
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