When deploying the latest version on archive.s.o, the commit 258b7c2302458d483fa9893495fa8be0fbef284b about the ultimate adaption on the apidoc decorator broke the production.
The fastest route was deemed to revert it (0afc244347575a80561e05c2234563bafc724a25) to stabilize the production first.
This task is to investigate what is possibly wrong in that commit to fix and commit it again.
| rDWAPPS Web applications | |||
| rDWAPPS3c45b1fd0718 Fix apidoc regarding documentation call assimilation | |||
With the commit installed, here is the output that breaks the /content/search/ api.
tony ⋯ repo swh swh-environment curl -X POST -d sha1=adc83b19e793491b1c6ea0fd8b46cd9f32e592fc http://localhost:6543/api/1/content/search/ master
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<title>ValueError: View function did not return a response // Werkzeug Debugger</title>
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<div class="debugger">
<h1>builtins.ValueError</h1>
<div class="detail">
<p class="errormsg">ValueError: View function did not return a response</p>
</div>
<h2 class="traceback">Traceback <em>(most recent call last)</em></h2>
<div class="traceback">
<ul><li><div class="frame" id="frame-140514030705184">
<h4>File <cite class="filename">"/usr/lib/python3/dist-packages/flask/app.py"</cite>,
line <em class="line">2000</em>,
in <code class="function">__call__</code></h4>
<div class="source"><pre class="line before"><span class="ws"> </span>error = None</pre>
<pre class="line before"><span class="ws"> </span>ctx.auto_pop(error)</pre>
<pre class="line before"><span class="ws"></span> </pre>
<pre class="line before"><span class="ws"> </span>def __call__(self, environ, start_response):</pre>
<pre class="line before"><span class="ws"> </span>"""Shortcut for :attr:`wsgi_app`."""</pre>
<pre class="line current"><span class="ws"> </span>return self.wsgi_app(environ, start_response)</pre>
<pre class="line after"><span class="ws"></span> </pre>
<pre class="line after"><span class="ws"> </span>def __repr__(self):</pre>
<pre class="line after"><span class="ws"> </span>return '<%s %r>' % (</pre>
<pre class="line after"><span class="ws"> </span>self.__class__.__name__,</pre>
<pre class="line after"><span class="ws"> </span>self.name,</pre></div>
</div>
<li><div class="frame" id="frame-140514030705912">
<h4>File <cite class="filename">"/usr/lib/python3/dist-packages/flask/app.py"</cite>,
line <em class="line">1991</em>,
in <code class="function">wsgi_app</code></h4>
<div class="source"><pre class="line before"><span class="ws"> </span>try:</pre>
<pre class="line before"><span class="ws"> </span>try:</pre>
<pre class="line before"><span class="ws"> </span>response = self.full_dispatch_request()</pre>
<pre class="line before"><span class="ws"> </span>except Exception as e:</pre>
<pre class="line before"><span class="ws"> </span>error = e</pre>
<pre class="line current"><span class="ws"> </span>response = self.make_response(self.handle_exception(e))</pre>
<pre class="line after"><span class="ws"> </span>return response(environ, start_response)</pre>
<pre class="line after"><span class="ws"> </span>finally:</pre>
<pre class="line after"><span class="ws"> </span>if self.should_ignore_error(error):</pre>
<pre class="line after"><span class="ws"> </span>error = None</pre>
<pre class="line after"><span class="ws"> </span>ctx.auto_pop(error)</pre></div>
</div>
<li><div class="frame" id="frame-140514030705464">
<h4>File <cite class="filename">"/usr/lib/python3/dist-packages/flask/app.py"</cite>,
line <em class="line">1567</em>,
in <code class="function">handle_exception</code></h4>
<div class="source"><pre class="line before"><span class="ws"> </span># if we want to repropagate the exception, we can attempt to</pre>
<pre class="line before"><span class="ws"> </span># raise it with the whole traceback in case we can do that</pre>
<pre class="line before"><span class="ws"> </span># (the function was actually called from the except part)</pre>
<pre class="line before"><span class="ws"> </span># otherwise, we just raise the error again</pre>
<pre class="line before"><span class="ws"> </span>if exc_value is e:</pre>
<pre class="line current"><span class="ws"> </span>reraise(exc_type, exc_value, tb)</pre>
<pre class="line after"><span class="ws"> </span>else:</pre>
<pre class="line after"><span class="ws"> </span>raise e</pre>
<pre class="line after"><span class="ws"></span> </pre>
<pre class="line after"><span class="ws"> </span>self.log_exception((exc_type, exc_value, tb))</pre>
<pre class="line after"><span class="ws"> </span>if handler is None:</pre></div>
</div>
<li><div class="frame" id="frame-140514030704008">
<h4>File <cite class="filename">"/usr/lib/python3/dist-packages/flask/_compat.py"</cite>,
line <em class="line">33</em>,
in <code class="function">reraise</code></h4>
<div class="source"><pre class="line before"><span class="ws"> </span>from io import StringIO</pre>
<pre class="line before"><span class="ws"></span> </pre>
<pre class="line before"><span class="ws"> </span>def reraise(tp, value, tb=None):</pre>
<pre class="line before"><span class="ws"> </span>if value.__traceback__ is not tb:</pre>
<pre class="line before"><span class="ws"> </span>raise value.with_traceback(tb)</pre>
<pre class="line current"><span class="ws"> </span>raise value</pre>
<pre class="line after"><span class="ws"></span> </pre>
<pre class="line after"><span class="ws"> </span>implements_to_string = _identity</pre>
<pre class="line after"><span class="ws"></span> </pre>
<pre class="line after"><span class="ws"></span>else:</pre>
<pre class="line after"><span class="ws"> </span>text_type = unicode</pre></div>
</div>
<li><div class="frame" id="frame-140514030705576">
<h4>File <cite class="filename">"/usr/lib/python3/dist-packages/flask/app.py"</cite>,
line <em class="line">1988</em>,
in <code class="function">wsgi_app</code></h4>
<div class="source"><pre class="line before"><span class="ws"> </span>ctx = self.request_context(environ)</pre>
<pre class="line before"><span class="ws"> </span>ctx.push()</pre>
<pre class="line before"><span class="ws"> </span>error = None</pre>
<pre class="line before"><span class="ws"> </span>try:</pre>
<pre class="line before"><span class="ws"> </span>try:</pre>
<pre class="line current"><span class="ws"> </span>response = self.full_dispatch_request()</pre>
<pre class="line after"><span class="ws"> </span>except Exception as e:</pre>
<pre class="line after"><span class="ws"> </span>error = e</pre>
<pre class="line after"><span class="ws"> </span>response = self.make_response(self.handle_exception(e))</pre>
<pre class="line after"><span class="ws"> </span>return response(environ, start_response)</pre>
<pre class="line after"><span class="ws"> </span>finally:</pre></div>
</div>
<li><div class="frame" id="frame-140514030704680">
<h4>File <cite class="filename">"/usr/lib/python3/dist-packages/flask/app.py"</cite>,
line <em class="line">1642</em>,
in <code class="function">full_dispatch_request</code></h4>
<div class="source"><pre class="line before"><span class="ws"> </span>rv = self.preprocess_request()</pre>
<pre class="line before"><span class="ws"> </span>if rv is None:</pre>
<pre class="line before"><span class="ws"> </span>rv = self.dispatch_request()</pre>
<pre class="line before"><span class="ws"> </span>except Exception as e:</pre>
<pre class="line before"><span class="ws"> </span>rv = self.handle_user_exception(e)</pre>
<pre class="line current"><span class="ws"> </span>response = self.make_response(rv)</pre>
<pre class="line after"><span class="ws"> </span>response = self.process_response(response)</pre>
<pre class="line after"><span class="ws"> </span>request_finished.send(self, response=response)</pre>
<pre class="line after"><span class="ws"> </span>return response</pre>
<pre class="line after"><span class="ws"></span> </pre>
<pre class="line after"><span class="ws"> </span>def try_trigger_before_first_request_functions(self):</pre></div>
</div>
<li><div class="frame" id="frame-140514030785032">
<h4>File <cite class="filename">"/usr/lib/python3/dist-packages/flask/app.py"</cite>,
line <em class="line">1731</em>,
in <code class="function">make_response</code></h4>
<div class="source"><pre class="line before"><span class="ws"> </span>status_or_headers = headers = None</pre>
<pre class="line before"><span class="ws"> </span>if isinstance(rv, tuple):</pre>
<pre class="line before"><span class="ws"> </span>rv, status_or_headers, headers = rv + (None,) * (3 - len(rv))</pre>
<pre class="line before"><span class="ws"></span> </pre>
<pre class="line before"><span class="ws"> </span>if rv is None:</pre>
<pre class="line current"><span class="ws"> </span>raise ValueError('View function did not return a response')</pre>
<pre class="line after"><span class="ws"></span> </pre>
<pre class="line after"><span class="ws"> </span>if isinstance(status_or_headers, (dict, list)):</pre>
<pre class="line after"><span class="ws"> </span>headers, status_or_headers = status_or_headers, None</pre>
<pre class="line after"><span class="ws"></span> </pre>
<pre class="line after"><span class="ws"> </span>if not isinstance(rv, self.response_class):</pre></div>
</div>
</ul>
<blockquote>ValueError: View function did not return a response</blockquote>
</div>
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This is the Copy/Paste friendly version of the traceback. <span
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<textarea cols="50" rows="10" name="code" readonly>Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/flask/app.py", line 2000, in __call__
return self.wsgi_app(environ, start_response)
File "/usr/lib/python3/dist-packages/flask/app.py", line 1991, in wsgi_app
response = self.make_response(self.handle_exception(e))
File "/usr/lib/python3/dist-packages/flask/app.py", line 1567, in handle_exception
reraise(exc_type, exc_value, tb)
File "/usr/lib/python3/dist-packages/flask/_compat.py", line 33, in reraise
raise value
File "/usr/lib/python3/dist-packages/flask/app.py", line 1988, in wsgi_app
response = self.full_dispatch_request()
File "/usr/lib/python3/dist-packages/flask/app.py", line 1642, in full_dispatch_request
response = self.make_response(rv)
File "/usr/lib/python3/dist-packages/flask/app.py", line 1731, in make_response
raise ValueError('View function did not return a response')
ValueError: View function did not return a response</textarea>
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<!--
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/flask/app.py", line 2000, in __call__
return self.wsgi_app(environ, start_response)
File "/usr/lib/python3/dist-packages/flask/app.py", line 1991, in wsgi_app
response = self.make_response(self.handle_exception(e))
File "/usr/lib/python3/dist-packages/flask/app.py", line 1567, in handle_exception
reraise(exc_type, exc_value, tb)
File "/usr/lib/python3/dist-packages/flask/_compat.py", line 33, in reraise
raise value
File "/usr/lib/python3/dist-packages/flask/app.py", line 1988, in wsgi_app
response = self.full_dispatch_request()
File "/usr/lib/python3/dist-packages/flask/app.py", line 1642, in full_dispatch_request
response = self.make_response(rv)
File "/usr/lib/python3/dist-packages/flask/app.py", line 1731, in make_response
raise ValueError('View function did not return a response')
ValueError: View function did not return a response
-->It's not quite completely clear yet but, in that commit, this function call fails because: