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<h1>Source code for osxphotos.debug</h1><div class="highlight"><pre>
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<span></span><span class="sd">"""Utilities for debugging"""</span>
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<span class="kn">import</span> <span class="nn">logging</span>
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<span class="kn">import</span> <span class="nn">sys</span>
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<span class="kn">import</span> <span class="nn">time</span>
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<span class="kn">from</span> <span class="nn">datetime</span> <span class="kn">import</span> <span class="n">datetime</span>
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<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Dict</span><span class="p">,</span> <span class="n">List</span>
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<span class="kn">import</span> <span class="nn">wrapt</span>
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<span class="kn">from</span> <span class="nn">rich</span> <span class="kn">import</span> <span class="nb">print</span>
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<span class="c1"># global variable to control debug output</span>
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<span class="c1"># set via --debug</span>
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<span class="n">DEBUG</span> <span class="o">=</span> <span class="kc">False</span>
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<div class="viewcode-block" id="set_debug"><a class="viewcode-back" href="../../reference.html#osxphotos.set_debug">[docs]</a><span class="k">def</span> <span class="nf">set_debug</span><span class="p">(</span><span class="n">debug</span><span class="p">:</span> <span class="nb">bool</span><span class="p">):</span>
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<span class="sd">"""set debug flag"""</span>
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<span class="k">global</span> <span class="n">DEBUG</span>
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<span class="n">DEBUG</span> <span class="o">=</span> <span class="n">debug</span>
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<span class="n">logging</span><span class="o">.</span><span class="n">disable</span><span class="p">(</span><span class="n">logging</span><span class="o">.</span><span class="n">NOTSET</span> <span class="k">if</span> <span class="n">debug</span> <span class="k">else</span> <span class="n">logging</span><span class="o">.</span><span class="n">DEBUG</span><span class="p">)</span></div>
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<div class="viewcode-block" id="is_debug"><a class="viewcode-back" href="../../reference.html#osxphotos.is_debug">[docs]</a><span class="k">def</span> <span class="nf">is_debug</span><span class="p">():</span>
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<span class="sd">"""return debug flag"""</span>
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<span class="k">return</span> <span class="n">DEBUG</span></div>
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<span class="k">def</span> <span class="nf">debug_watch</span><span class="p">(</span><span class="n">wrapped</span><span class="p">,</span> <span class="n">instance</span><span class="p">,</span> <span class="n">args</span><span class="p">,</span> <span class="n">kwargs</span><span class="p">):</span>
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<span class="sd">"""For use with wrapt.wrap_function_wrapper to watch calls to a function"""</span>
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<span class="n">caller</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">_getframe</span><span class="p">()</span><span class="o">.</span><span class="n">f_back</span><span class="o">.</span><span class="n">f_code</span><span class="o">.</span><span class="n">co_name</span>
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<span class="n">name</span> <span class="o">=</span> <span class="n">wrapped</span><span class="o">.</span><span class="vm">__name__</span>
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<span class="n">timestamp</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">now</span><span class="p">()</span><span class="o">.</span><span class="n">isoformat</span><span class="p">()</span>
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<span class="nb">print</span><span class="p">(</span>
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<span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">timestamp</span><span class="si">}</span><span class="s2"> </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2"> called from </span><span class="si">{</span><span class="n">caller</span><span class="si">}</span><span class="s2"> with args: </span><span class="si">{</span><span class="n">args</span><span class="si">}</span><span class="s2"> and kwargs: </span><span class="si">{</span><span class="n">kwargs</span><span class="si">}</span><span class="s2">"</span>
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<span class="p">)</span>
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<span class="n">start_t</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">perf_counter</span><span class="p">()</span>
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<span class="n">rv</span> <span class="o">=</span> <span class="n">wrapped</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
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<span class="n">stop_t</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">perf_counter</span><span class="p">()</span>
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<span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">timestamp</span><span class="si">}</span><span class="s2"> </span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2"> returned: </span><span class="si">{</span><span class="n">rv</span><span class="si">}</span><span class="s2">, elapsed time: </span><span class="si">{</span><span class="n">stop_t</span> <span class="o">-</span> <span class="n">start_t</span><span class="si">}</span><span class="s2"> sec"</span><span class="p">)</span>
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<span class="k">return</span> <span class="n">rv</span>
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<span class="k">def</span> <span class="nf">debug_breakpoint</span><span class="p">(</span><span class="n">wrapped</span><span class="p">,</span> <span class="n">instance</span><span class="p">,</span> <span class="n">args</span><span class="p">,</span> <span class="n">kwargs</span><span class="p">):</span>
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<span class="sd">"""For use with wrapt.wrap_function_wrapper to set breakpoint on a function"""</span>
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<span class="nb">breakpoint</span><span class="p">()</span>
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<span class="k">return</span> <span class="n">wrapped</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
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<span class="k">def</span> <span class="nf">wrap_function</span><span class="p">(</span><span class="n">function_path</span><span class="p">,</span> <span class="n">wrapper</span><span class="p">):</span>
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<span class="sd">"""Wrap a function with wrapper function"""</span>
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<span class="n">module</span><span class="p">,</span> <span class="n">name</span> <span class="o">=</span> <span class="n">function_path</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">"::"</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
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<span class="k">try</span><span class="p">:</span>
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<span class="k">return</span> <span class="n">wrapt</span><span class="o">.</span><span class="n">wrap_function_wrapper</span><span class="p">(</span><span class="n">module</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">wrapper</span><span class="p">)</span>
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<span class="k">except</span> <span class="ne">AttributeError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
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<span class="k">raise</span> <span class="ne">AttributeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">module</span><span class="si">}</span><span class="s2">.</span><span class="si">{</span><span class="n">name</span><span class="si">}</span><span class="s2"> does not exist"</span><span class="p">)</span> <span class="kn">from</span> <span class="nn">e</span>
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<span class="k">def</span> <span class="nf">get_debug_options</span><span class="p">(</span><span class="n">arg_names</span><span class="p">:</span> <span class="n">List</span><span class="p">,</span> <span class="n">argv</span><span class="p">:</span> <span class="n">List</span><span class="p">)</span> <span class="o">-></span> <span class="n">Dict</span><span class="p">:</span>
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<span class="sd">"""Get the options for the debug options;</span>
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<span class="sd"> Some of the debug options like --watch and --breakpoint need to be processed before any other packages are loaded</span>
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<span class="sd"> so they can't be handled in the normal click argument processing, thus this function is called</span>
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<span class="sd"> from osxphotos/cli/__init__.py</span>
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<span class="sd"> Assumes multi-valued options are OK and that all options take form of --option VALUE or --option=VALUE</span>
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|
<span class="sd"> """</span>
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<span class="c1"># argv[0] is the program name</span>
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<span class="c1"># argv[1] is the command</span>
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<span class="c1"># argv[2:] are the arguments</span>
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<span class="n">args</span> <span class="o">=</span> <span class="p">{}</span>
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|
<span class="k">for</span> <span class="n">arg_name</span> <span class="ow">in</span> <span class="n">arg_names</span><span class="p">:</span>
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<span class="k">for</span> <span class="n">idx</span><span class="p">,</span> <span class="n">arg</span> <span class="ow">in</span> <span class="nb">enumerate</span><span class="p">(</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">:]):</span>
|
|
<span class="k">if</span> <span class="n">arg</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="sa">f</span><span class="s2">"</span><span class="si">{</span><span class="n">arg_name</span><span class="si">}</span><span class="s2">="</span><span class="p">):</span>
|
|
<span class="n">arg_value</span> <span class="o">=</span> <span class="n">arg</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">"="</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
|
|
<span class="k">try</span><span class="p">:</span>
|
|
<span class="n">args</span><span class="p">[</span><span class="n">arg</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">arg_value</span><span class="p">)</span>
|
|
<span class="k">except</span> <span class="ne">KeyError</span><span class="p">:</span>
|
|
<span class="n">args</span><span class="p">[</span><span class="n">arg</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="n">arg_value</span><span class="p">]</span>
|
|
<span class="k">elif</span> <span class="n">arg</span> <span class="o">==</span> <span class="n">arg_name</span><span class="p">:</span>
|
|
<span class="k">try</span><span class="p">:</span>
|
|
<span class="n">args</span><span class="p">[</span><span class="n">arg</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">argv</span><span class="p">[</span><span class="n">idx</span> <span class="o">+</span> <span class="mi">2</span><span class="p">])</span>
|
|
<span class="k">except</span> <span class="ne">KeyError</span><span class="p">:</span>
|
|
<span class="k">try</span><span class="p">:</span>
|
|
<span class="n">args</span><span class="p">[</span><span class="n">arg</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="n">argv</span><span class="p">[</span><span class="n">idx</span> <span class="o">+</span> <span class="mi">2</span><span class="p">]]</span>
|
|
<span class="k">except</span> <span class="ne">IndexError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
|
|
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Missing value for </span><span class="si">{</span><span class="n">arg</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> <span class="kn">from</span> <span class="nn">e</span>
|
|
<span class="k">except</span> <span class="ne">IndexError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
|
|
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s2">"Missing value for </span><span class="si">{</span><span class="n">arg</span><span class="si">}</span><span class="s2">"</span><span class="p">)</span> <span class="kn">from</span> <span class="nn">e</span>
|
|
<span class="k">return</span> <span class="n">args</span>
|
|
|
|
|
|
<span class="k">def</span> <span class="nf">get_debug_flags</span><span class="p">(</span><span class="n">arg_names</span><span class="p">:</span> <span class="n">List</span><span class="p">,</span> <span class="n">argv</span><span class="p">:</span> <span class="n">List</span><span class="p">)</span> <span class="o">-></span> <span class="n">Dict</span><span class="p">:</span>
|
|
<span class="sd">"""Get the flags for the debug options;</span>
|
|
<span class="sd"> Processes flags like --debug that resolve to True or False</span>
|
|
<span class="sd"> """</span>
|
|
<span class="c1"># argv[0] is the program name</span>
|
|
<span class="c1"># argv[1] is the command</span>
|
|
<span class="c1"># argv[2:] are the arguments</span>
|
|
<span class="n">args</span> <span class="o">=</span> <span class="p">{</span><span class="n">arg_name</span><span class="p">:</span> <span class="kc">False</span> <span class="k">for</span> <span class="n">arg_name</span> <span class="ow">in</span> <span class="n">arg_names</span><span class="p">}</span>
|
|
<span class="k">for</span> <span class="n">arg_name</span> <span class="ow">in</span> <span class="n">arg_names</span><span class="p">:</span>
|
|
<span class="k">if</span> <span class="n">arg_name</span> <span class="ow">in</span> <span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">:]:</span>
|
|
<span class="n">args</span><span class="p">[</span><span class="n">arg_name</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>
|
|
<span class="k">return</span> <span class="n">args</span>
|
|
</pre></div>
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