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  <h1>Source code for _pytest.cacheprovider</h1><div class="highlight"><pre>
<span></span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">merged implementation of the cache provider</span>

<span class="sd">the name cache was not chosen to ensure pluggy automatically</span>
<span class="sd">ignores the external pytest-cache</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">absolute_import</span><span class="p">,</span> <span class="n">division</span><span class="p">,</span> <span class="n">print_function</span>
<span class="kn">import</span> <span class="nn">py</span>
<span class="kn">import</span> <span class="nn">pytest</span>
<span class="kn">import</span> <span class="nn">json</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">from</span> <span class="nn">os.path</span> <span class="k">import</span> <span class="n">sep</span> <span class="k">as</span> <span class="n">_sep</span><span class="p">,</span> <span class="n">altsep</span> <span class="k">as</span> <span class="n">_altsep</span>


<span class="k">class</span> <span class="nc">Cache</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="n">config</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">config</span> <span class="o">=</span> <span class="n">config</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">_cachedir</span> <span class="o">=</span> <span class="n">Cache</span><span class="o">.</span><span class="n">cache_dir_from_config</span><span class="p">(</span><span class="n">config</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">trace</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">trace</span><span class="o">.</span><span class="n">root</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;cache&quot;</span><span class="p">)</span>
        <span class="k">if</span> <span class="n">config</span><span class="o">.</span><span class="n">getvalue</span><span class="p">(</span><span class="s2">&quot;cacheclear&quot;</span><span class="p">):</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">trace</span><span class="p">(</span><span class="s2">&quot;clearing cachedir&quot;</span><span class="p">)</span>
            <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cachedir</span><span class="o">.</span><span class="n">check</span><span class="p">():</span>
                <span class="bp">self</span><span class="o">.</span><span class="n">_cachedir</span><span class="o">.</span><span class="n">remove</span><span class="p">()</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">_cachedir</span><span class="o">.</span><span class="n">mkdir</span><span class="p">()</span>

    <span class="nd">@staticmethod</span>
    <span class="k">def</span> <span class="nf">cache_dir_from_config</span><span class="p">(</span><span class="n">config</span><span class="p">):</span>
        <span class="n">cache_dir</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">getini</span><span class="p">(</span><span class="s2">&quot;cache_dir&quot;</span><span class="p">)</span>
        <span class="n">cache_dir</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">expanduser</span><span class="p">(</span><span class="n">cache_dir</span><span class="p">)</span>
        <span class="n">cache_dir</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">expandvars</span><span class="p">(</span><span class="n">cache_dir</span><span class="p">)</span>
        <span class="k">if</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">isabs</span><span class="p">(</span><span class="n">cache_dir</span><span class="p">):</span>
            <span class="k">return</span> <span class="n">py</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">local</span><span class="p">(</span><span class="n">cache_dir</span><span class="p">)</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="k">return</span> <span class="n">config</span><span class="o">.</span><span class="n">rootdir</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">cache_dir</span><span class="p">)</span>

<div class="viewcode-block" id="Cache.makedir"><a class="viewcode-back" href="../../cache.html#_pytest.cacheprovider.Cache.makedir">[docs]</a>    <span class="k">def</span> <span class="nf">makedir</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="sd">&quot;&quot;&quot; return a directory path object with the given name.  If the</span>
<span class="sd">        directory does not yet exist, it will be created.  You can use it</span>
<span class="sd">        to manage files likes e. g. store/retrieve database</span>
<span class="sd">        dumps across test sessions.</span>

<span class="sd">        :param name: must be a string not containing a ``/`` separator.</span>
<span class="sd">             Make sure the name contains your plugin or application</span>
<span class="sd">             identifiers to prevent clashes with other cache users.</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="k">if</span> <span class="n">_sep</span> <span class="ow">in</span> <span class="n">name</span> <span class="ow">or</span> <span class="n">_altsep</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">_altsep</span> <span class="ow">in</span> <span class="n">name</span><span class="p">:</span>
            <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">&quot;name is not allowed to contain path separators&quot;</span><span class="p">)</span>
        <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cachedir</span><span class="o">.</span><span class="n">ensure_dir</span><span class="p">(</span><span class="s2">&quot;d&quot;</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span></div>

    <span class="k">def</span> <span class="nf">_getvaluepath</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
        <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_cachedir</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="s1">&#39;v&#39;</span><span class="p">,</span> <span class="o">*</span><span class="n">key</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;/&#39;</span><span class="p">))</span>

<div class="viewcode-block" id="Cache.get"><a class="viewcode-back" href="../../cache.html#_pytest.cacheprovider.Cache.get">[docs]</a>    <span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">default</span><span class="p">):</span>
        <span class="sd">&quot;&quot;&quot; return cached value for the given key.  If no value</span>
<span class="sd">        was yet cached or the value cannot be read, the specified</span>
<span class="sd">        default is returned.</span>

<span class="sd">        :param key: must be a ``/`` separated value. Usually the first</span>
<span class="sd">             name is the name of your plugin or your application.</span>
<span class="sd">        :param default: must be provided in case of a cache-miss or</span>
<span class="sd">             invalid cache values.</span>

<span class="sd">        &quot;&quot;&quot;</span>
        <span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getvaluepath</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
        <span class="k">if</span> <span class="n">path</span><span class="o">.</span><span class="n">check</span><span class="p">():</span>
            <span class="k">try</span><span class="p">:</span>
                <span class="k">with</span> <span class="n">path</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s2">&quot;r&quot;</span><span class="p">)</span> <span class="k">as</span> <span class="n">f</span><span class="p">:</span>
                    <span class="k">return</span> <span class="n">json</span><span class="o">.</span><span class="n">load</span><span class="p">(</span><span class="n">f</span><span class="p">)</span>
            <span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
                <span class="bp">self</span><span class="o">.</span><span class="n">trace</span><span class="p">(</span><span class="s2">&quot;cache-invalid at </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">path</span><span class="p">,))</span>
        <span class="k">return</span> <span class="n">default</span></div>

<div class="viewcode-block" id="Cache.set"><a class="viewcode-back" href="../../cache.html#_pytest.cacheprovider.Cache.set">[docs]</a>    <span class="k">def</span> <span class="nf">set</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
        <span class="sd">&quot;&quot;&quot; save value for the given key.</span>

<span class="sd">        :param key: must be a ``/`` separated value. Usually the first</span>
<span class="sd">             name is the name of your plugin or your application.</span>
<span class="sd">        :param value: must be of any combination of basic</span>
<span class="sd">               python types, including nested types</span>
<span class="sd">               like e. g. lists of dictionaries.</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getvaluepath</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
        <span class="k">try</span><span class="p">:</span>
            <span class="n">path</span><span class="o">.</span><span class="n">dirpath</span><span class="p">()</span><span class="o">.</span><span class="n">ensure_dir</span><span class="p">()</span>
        <span class="k">except</span> <span class="p">(</span><span class="n">py</span><span class="o">.</span><span class="n">error</span><span class="o">.</span><span class="n">EEXIST</span><span class="p">,</span> <span class="n">py</span><span class="o">.</span><span class="n">error</span><span class="o">.</span><span class="n">EACCES</span><span class="p">):</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span>
                <span class="n">code</span><span class="o">=</span><span class="s1">&#39;I9&#39;</span><span class="p">,</span> <span class="n">message</span><span class="o">=</span><span class="s1">&#39;could not create cache path </span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">path</span><span class="p">,)</span>
            <span class="p">)</span>
            <span class="k">return</span>
        <span class="k">try</span><span class="p">:</span>
            <span class="n">f</span> <span class="o">=</span> <span class="n">path</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;w&#39;</span><span class="p">)</span>
        <span class="k">except</span> <span class="n">py</span><span class="o">.</span><span class="n">error</span><span class="o">.</span><span class="n">ENOTDIR</span><span class="p">:</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span>
                <span class="n">code</span><span class="o">=</span><span class="s1">&#39;I9&#39;</span><span class="p">,</span> <span class="n">message</span><span class="o">=</span><span class="s1">&#39;cache could not write path </span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">path</span><span class="p">,))</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="k">with</span> <span class="n">f</span><span class="p">:</span>
                <span class="bp">self</span><span class="o">.</span><span class="n">trace</span><span class="p">(</span><span class="s2">&quot;cache-write </span><span class="si">%s</span><span class="s2">: </span><span class="si">%r</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">,))</span>
                <span class="n">json</span><span class="o">.</span><span class="n">dump</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">f</span><span class="p">,</span> <span class="n">indent</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> <span class="n">sort_keys</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span></div>


<span class="k">class</span> <span class="nc">LFPlugin</span><span class="p">:</span>
    <span class="sd">&quot;&quot;&quot; Plugin which implements the --lf (run last-failing) option &quot;&quot;&quot;</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">config</span><span class="p">):</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">config</span> <span class="o">=</span> <span class="n">config</span>
        <span class="n">active_keys</span> <span class="o">=</span> <span class="s1">&#39;lf&#39;</span><span class="p">,</span> <span class="s1">&#39;failedfirst&#39;</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">active</span> <span class="o">=</span> <span class="nb">any</span><span class="p">(</span><span class="n">config</span><span class="o">.</span><span class="n">getvalue</span><span class="p">(</span><span class="n">key</span><span class="p">)</span> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">active_keys</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">lastfailed</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">cache</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;cache/lastfailed&quot;</span><span class="p">,</span> <span class="p">{})</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">_previously_failed_count</span> <span class="o">=</span> <span class="kc">None</span>

    <span class="k">def</span> <span class="nf">pytest_report_collectionfinish</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">active</span><span class="p">:</span>
            <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_previously_failed_count</span><span class="p">:</span>
                <span class="n">mode</span> <span class="o">=</span> <span class="s2">&quot;run all (no recorded failures)&quot;</span>
            <span class="k">else</span><span class="p">:</span>
                <span class="n">noun</span> <span class="o">=</span> <span class="s1">&#39;failure&#39;</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_previously_failed_count</span> <span class="o">==</span> <span class="mi">1</span> <span class="k">else</span> <span class="s1">&#39;failures&#39;</span>
                <span class="n">suffix</span> <span class="o">=</span> <span class="s2">&quot; first&quot;</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">getvalue</span><span class="p">(</span><span class="s2">&quot;failedfirst&quot;</span><span class="p">)</span> <span class="k">else</span> <span class="s2">&quot;&quot;</span>
                <span class="n">mode</span> <span class="o">=</span> <span class="s2">&quot;rerun previous </span><span class="si">{count}</span><span class="s2"> </span><span class="si">{noun}{suffix}</span><span class="s2">&quot;</span><span class="o">.</span><span class="n">format</span><span class="p">(</span>
                    <span class="n">count</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_previously_failed_count</span><span class="p">,</span> <span class="n">suffix</span><span class="o">=</span><span class="n">suffix</span><span class="p">,</span> <span class="n">noun</span><span class="o">=</span><span class="n">noun</span>
                <span class="p">)</span>
            <span class="k">return</span> <span class="s2">&quot;run-last-failure: </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="n">mode</span>

    <span class="k">def</span> <span class="nf">pytest_runtest_logreport</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">report</span><span class="p">):</span>
        <span class="k">if</span> <span class="p">(</span><span class="n">report</span><span class="o">.</span><span class="n">when</span> <span class="o">==</span> <span class="s1">&#39;call&#39;</span> <span class="ow">and</span> <span class="n">report</span><span class="o">.</span><span class="n">passed</span><span class="p">)</span> <span class="ow">or</span> <span class="n">report</span><span class="o">.</span><span class="n">skipped</span><span class="p">:</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">lastfailed</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">report</span><span class="o">.</span><span class="n">nodeid</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
        <span class="k">elif</span> <span class="n">report</span><span class="o">.</span><span class="n">failed</span><span class="p">:</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">lastfailed</span><span class="p">[</span><span class="n">report</span><span class="o">.</span><span class="n">nodeid</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>

    <span class="k">def</span> <span class="nf">pytest_collectreport</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">report</span><span class="p">):</span>
        <span class="n">passed</span> <span class="o">=</span> <span class="n">report</span><span class="o">.</span><span class="n">outcome</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">&#39;passed&#39;</span><span class="p">,</span> <span class="s1">&#39;skipped&#39;</span><span class="p">)</span>
        <span class="k">if</span> <span class="n">passed</span><span class="p">:</span>
            <span class="k">if</span> <span class="n">report</span><span class="o">.</span><span class="n">nodeid</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastfailed</span><span class="p">:</span>
                <span class="bp">self</span><span class="o">.</span><span class="n">lastfailed</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">report</span><span class="o">.</span><span class="n">nodeid</span><span class="p">)</span>
                <span class="bp">self</span><span class="o">.</span><span class="n">lastfailed</span><span class="o">.</span><span class="n">update</span><span class="p">(</span>
                    <span class="p">(</span><span class="n">item</span><span class="o">.</span><span class="n">nodeid</span><span class="p">,</span> <span class="kc">True</span><span class="p">)</span>
                    <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">report</span><span class="o">.</span><span class="n">result</span><span class="p">)</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">lastfailed</span><span class="p">[</span><span class="n">report</span><span class="o">.</span><span class="n">nodeid</span><span class="p">]</span> <span class="o">=</span> <span class="kc">True</span>

    <span class="k">def</span> <span class="nf">pytest_collection_modifyitems</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">session</span><span class="p">,</span> <span class="n">config</span><span class="p">,</span> <span class="n">items</span><span class="p">):</span>
        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">active</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastfailed</span><span class="p">:</span>
            <span class="n">previously_failed</span> <span class="o">=</span> <span class="p">[]</span>
            <span class="n">previously_passed</span> <span class="o">=</span> <span class="p">[]</span>
            <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">items</span><span class="p">:</span>
                <span class="k">if</span> <span class="n">item</span><span class="o">.</span><span class="n">nodeid</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastfailed</span><span class="p">:</span>
                    <span class="n">previously_failed</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">item</span><span class="p">)</span>
                <span class="k">else</span><span class="p">:</span>
                    <span class="n">previously_passed</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">item</span><span class="p">)</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">_previously_failed_count</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">previously_failed</span><span class="p">)</span>
            <span class="k">if</span> <span class="ow">not</span> <span class="n">previously_failed</span><span class="p">:</span>
                <span class="c1"># running a subset of all tests with recorded failures outside</span>
                <span class="c1"># of the set of tests currently executing</span>
                <span class="k">return</span>
            <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">getvalue</span><span class="p">(</span><span class="s2">&quot;lf&quot;</span><span class="p">):</span>
                <span class="n">items</span><span class="p">[:]</span> <span class="o">=</span> <span class="n">previously_failed</span>
                <span class="n">config</span><span class="o">.</span><span class="n">hook</span><span class="o">.</span><span class="n">pytest_deselected</span><span class="p">(</span><span class="n">items</span><span class="o">=</span><span class="n">previously_passed</span><span class="p">)</span>
            <span class="k">else</span><span class="p">:</span>
                <span class="n">items</span><span class="p">[:]</span> <span class="o">=</span> <span class="n">previously_failed</span> <span class="o">+</span> <span class="n">previously_passed</span>

    <span class="k">def</span> <span class="nf">pytest_sessionfinish</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">session</span><span class="p">):</span>
        <span class="n">config</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">config</span>
        <span class="k">if</span> <span class="n">config</span><span class="o">.</span><span class="n">getvalue</span><span class="p">(</span><span class="s2">&quot;cacheshow&quot;</span><span class="p">)</span> <span class="ow">or</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">config</span><span class="p">,</span> <span class="s2">&quot;slaveinput&quot;</span><span class="p">):</span>
            <span class="k">return</span>

        <span class="n">saved_lastfailed</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">cache</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;cache/lastfailed&quot;</span><span class="p">,</span> <span class="p">{})</span>
        <span class="k">if</span> <span class="n">saved_lastfailed</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastfailed</span><span class="p">:</span>
            <span class="n">config</span><span class="o">.</span><span class="n">cache</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="s2">&quot;cache/lastfailed&quot;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastfailed</span><span class="p">)</span>


<span class="k">def</span> <span class="nf">pytest_addoption</span><span class="p">(</span><span class="n">parser</span><span class="p">):</span>
    <span class="n">group</span> <span class="o">=</span> <span class="n">parser</span><span class="o">.</span><span class="n">getgroup</span><span class="p">(</span><span class="s2">&quot;general&quot;</span><span class="p">)</span>
    <span class="n">group</span><span class="o">.</span><span class="n">addoption</span><span class="p">(</span>
        <span class="s1">&#39;--lf&#39;</span><span class="p">,</span> <span class="s1">&#39;--last-failed&#39;</span><span class="p">,</span> <span class="n">action</span><span class="o">=</span><span class="s1">&#39;store_true&#39;</span><span class="p">,</span> <span class="n">dest</span><span class="o">=</span><span class="s2">&quot;lf&quot;</span><span class="p">,</span>
        <span class="n">help</span><span class="o">=</span><span class="s2">&quot;rerun only the tests that failed &quot;</span>
             <span class="s2">&quot;at the last run (or all if none failed)&quot;</span><span class="p">)</span>
    <span class="n">group</span><span class="o">.</span><span class="n">addoption</span><span class="p">(</span>
        <span class="s1">&#39;--ff&#39;</span><span class="p">,</span> <span class="s1">&#39;--failed-first&#39;</span><span class="p">,</span> <span class="n">action</span><span class="o">=</span><span class="s1">&#39;store_true&#39;</span><span class="p">,</span> <span class="n">dest</span><span class="o">=</span><span class="s2">&quot;failedfirst&quot;</span><span class="p">,</span>
        <span class="n">help</span><span class="o">=</span><span class="s2">&quot;run all tests but run the last failures first.  &quot;</span>
             <span class="s2">&quot;This may re-order tests and thus lead to &quot;</span>
             <span class="s2">&quot;repeated fixture setup/teardown&quot;</span><span class="p">)</span>
    <span class="n">group</span><span class="o">.</span><span class="n">addoption</span><span class="p">(</span>
        <span class="s1">&#39;--cache-show&#39;</span><span class="p">,</span> <span class="n">action</span><span class="o">=</span><span class="s1">&#39;store_true&#39;</span><span class="p">,</span> <span class="n">dest</span><span class="o">=</span><span class="s2">&quot;cacheshow&quot;</span><span class="p">,</span>
        <span class="n">help</span><span class="o">=</span><span class="s2">&quot;show cache contents, don&#39;t perform collection or tests&quot;</span><span class="p">)</span>
    <span class="n">group</span><span class="o">.</span><span class="n">addoption</span><span class="p">(</span>
        <span class="s1">&#39;--cache-clear&#39;</span><span class="p">,</span> <span class="n">action</span><span class="o">=</span><span class="s1">&#39;store_true&#39;</span><span class="p">,</span> <span class="n">dest</span><span class="o">=</span><span class="s2">&quot;cacheclear&quot;</span><span class="p">,</span>
        <span class="n">help</span><span class="o">=</span><span class="s2">&quot;remove all cache contents at start of test run.&quot;</span><span class="p">)</span>
    <span class="n">parser</span><span class="o">.</span><span class="n">addini</span><span class="p">(</span>
        <span class="s2">&quot;cache_dir&quot;</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="s1">&#39;.cache&#39;</span><span class="p">,</span>
        <span class="n">help</span><span class="o">=</span><span class="s2">&quot;cache directory path.&quot;</span><span class="p">)</span>


<span class="k">def</span> <span class="nf">pytest_cmdline_main</span><span class="p">(</span><span class="n">config</span><span class="p">):</span>
    <span class="k">if</span> <span class="n">config</span><span class="o">.</span><span class="n">option</span><span class="o">.</span><span class="n">cacheshow</span><span class="p">:</span>
        <span class="kn">from</span> <span class="nn">_pytest.main</span> <span class="k">import</span> <span class="n">wrap_session</span>
        <span class="k">return</span> <span class="n">wrap_session</span><span class="p">(</span><span class="n">config</span><span class="p">,</span> <span class="n">cacheshow</span><span class="p">)</span>


<span class="nd">@pytest</span><span class="o">.</span><span class="n">hookimpl</span><span class="p">(</span><span class="n">tryfirst</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">pytest_configure</span><span class="p">(</span><span class="n">config</span><span class="p">):</span>
    <span class="n">config</span><span class="o">.</span><span class="n">cache</span> <span class="o">=</span> <span class="n">Cache</span><span class="p">(</span><span class="n">config</span><span class="p">)</span>
    <span class="n">config</span><span class="o">.</span><span class="n">pluginmanager</span><span class="o">.</span><span class="n">register</span><span class="p">(</span><span class="n">LFPlugin</span><span class="p">(</span><span class="n">config</span><span class="p">),</span> <span class="s2">&quot;lfplugin&quot;</span><span class="p">)</span>


<span class="nd">@pytest</span><span class="o">.</span><span class="n">fixture</span>
<span class="k">def</span> <span class="nf">cache</span><span class="p">(</span><span class="n">request</span><span class="p">):</span>
    <span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    Return a cache object that can persist state between testing sessions.</span>

<span class="sd">    cache.get(key, default)</span>
<span class="sd">    cache.set(key, value)</span>

<span class="sd">    Keys must be a ``/`` separated value, where the first part is usually the</span>
<span class="sd">    name of your plugin or application to avoid clashes with other cache users.</span>

<span class="sd">    Values can be any object handled by the json stdlib module.</span>
<span class="sd">    &quot;&quot;&quot;</span>
    <span class="k">return</span> <span class="n">request</span><span class="o">.</span><span class="n">config</span><span class="o">.</span><span class="n">cache</span>


<span class="k">def</span> <span class="nf">pytest_report_header</span><span class="p">(</span><span class="n">config</span><span class="p">):</span>
    <span class="k">if</span> <span class="n">config</span><span class="o">.</span><span class="n">option</span><span class="o">.</span><span class="n">verbose</span><span class="p">:</span>
        <span class="n">relpath</span> <span class="o">=</span> <span class="n">py</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">local</span><span class="p">()</span><span class="o">.</span><span class="n">bestrelpath</span><span class="p">(</span><span class="n">config</span><span class="o">.</span><span class="n">cache</span><span class="o">.</span><span class="n">_cachedir</span><span class="p">)</span>
        <span class="k">return</span> <span class="s2">&quot;cachedir: </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="n">relpath</span>


<span class="k">def</span> <span class="nf">cacheshow</span><span class="p">(</span><span class="n">config</span><span class="p">,</span> <span class="n">session</span><span class="p">):</span>
    <span class="kn">from</span> <span class="nn">pprint</span> <span class="k">import</span> <span class="n">pprint</span>
    <span class="n">tw</span> <span class="o">=</span> <span class="n">py</span><span class="o">.</span><span class="n">io</span><span class="o">.</span><span class="n">TerminalWriter</span><span class="p">()</span>
    <span class="n">tw</span><span class="o">.</span><span class="n">line</span><span class="p">(</span><span class="s2">&quot;cachedir: &quot;</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">config</span><span class="o">.</span><span class="n">cache</span><span class="o">.</span><span class="n">_cachedir</span><span class="p">))</span>
    <span class="k">if</span> <span class="ow">not</span> <span class="n">config</span><span class="o">.</span><span class="n">cache</span><span class="o">.</span><span class="n">_cachedir</span><span class="o">.</span><span class="n">check</span><span class="p">():</span>
        <span class="n">tw</span><span class="o">.</span><span class="n">line</span><span class="p">(</span><span class="s2">&quot;cache is empty&quot;</span><span class="p">)</span>
        <span class="k">return</span> <span class="mi">0</span>
    <span class="n">dummy</span> <span class="o">=</span> <span class="nb">object</span><span class="p">()</span>
    <span class="n">basedir</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">cache</span><span class="o">.</span><span class="n">_cachedir</span>
    <span class="n">vdir</span> <span class="o">=</span> <span class="n">basedir</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="s2">&quot;v&quot;</span><span class="p">)</span>
    <span class="n">tw</span><span class="o">.</span><span class="n">sep</span><span class="p">(</span><span class="s2">&quot;-&quot;</span><span class="p">,</span> <span class="s2">&quot;cache values&quot;</span><span class="p">)</span>
    <span class="k">for</span> <span class="n">valpath</span> <span class="ow">in</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">vdir</span><span class="o">.</span><span class="n">visit</span><span class="p">(</span><span class="k">lambda</span> <span class="n">x</span><span class="p">:</span> <span class="n">x</span><span class="o">.</span><span class="n">isfile</span><span class="p">())):</span>
        <span class="n">key</span> <span class="o">=</span> <span class="n">valpath</span><span class="o">.</span><span class="n">relto</span><span class="p">(</span><span class="n">vdir</span><span class="p">)</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">valpath</span><span class="o">.</span><span class="n">sep</span><span class="p">,</span> <span class="s2">&quot;/&quot;</span><span class="p">)</span>
        <span class="n">val</span> <span class="o">=</span> <span class="n">config</span><span class="o">.</span><span class="n">cache</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">dummy</span><span class="p">)</span>
        <span class="k">if</span> <span class="n">val</span> <span class="ow">is</span> <span class="n">dummy</span><span class="p">:</span>
            <span class="n">tw</span><span class="o">.</span><span class="n">line</span><span class="p">(</span><span class="s2">&quot;</span><span class="si">%s</span><span class="s2"> contains unreadable content, &quot;</span>
                    <span class="s2">&quot;will be ignored&quot;</span> <span class="o">%</span> <span class="n">key</span><span class="p">)</span>
        <span class="k">else</span><span class="p">:</span>
            <span class="n">tw</span><span class="o">.</span><span class="n">line</span><span class="p">(</span><span class="s2">&quot;</span><span class="si">%s</span><span class="s2"> contains:&quot;</span> <span class="o">%</span> <span class="n">key</span><span class="p">)</span>
            <span class="n">stream</span> <span class="o">=</span> <span class="n">py</span><span class="o">.</span><span class="n">io</span><span class="o">.</span><span class="n">TextIO</span><span class="p">()</span>
            <span class="n">pprint</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">stream</span><span class="o">=</span><span class="n">stream</span><span class="p">)</span>
            <span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">stream</span><span class="o">.</span><span class="n">getvalue</span><span class="p">()</span><span class="o">.</span><span class="n">splitlines</span><span class="p">():</span>
                <span class="n">tw</span><span class="o">.</span><span class="n">line</span><span class="p">(</span><span class="s2">&quot;  &quot;</span> <span class="o">+</span> <span class="n">line</span><span class="p">)</span>

    <span class="n">ddir</span> <span class="o">=</span> <span class="n">basedir</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="s2">&quot;d&quot;</span><span class="p">)</span>
    <span class="k">if</span> <span class="n">ddir</span><span class="o">.</span><span class="n">isdir</span><span class="p">()</span> <span class="ow">and</span> <span class="n">ddir</span><span class="o">.</span><span class="n">listdir</span><span class="p">():</span>
        <span class="n">tw</span><span class="o">.</span><span class="n">sep</span><span class="p">(</span><span class="s2">&quot;-&quot;</span><span class="p">,</span> <span class="s2">&quot;cache directories&quot;</span><span class="p">)</span>
        <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="nb">sorted</span><span class="p">(</span><span class="n">basedir</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="s2">&quot;d&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">visit</span><span class="p">()):</span>
            <span class="c1"># if p.check(dir=1):</span>
            <span class="c1">#    print(&quot;%s/&quot; % p.relto(basedir))</span>
            <span class="k">if</span> <span class="n">p</span><span class="o">.</span><span class="n">isfile</span><span class="p">():</span>
                <span class="n">key</span> <span class="o">=</span> <span class="n">p</span><span class="o">.</span><span class="n">relto</span><span class="p">(</span><span class="n">basedir</span><span class="p">)</span>
                <span class="n">tw</span><span class="o">.</span><span class="n">line</span><span class="p">(</span><span class="s2">&quot;</span><span class="si">%s</span><span class="s2"> is a file of length </span><span class="si">%d</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span>
                        <span class="n">key</span><span class="p">,</span> <span class="n">p</span><span class="o">.</span><span class="n">size</span><span class="p">()))</span>
    <span class="k">return</span> <span class="mi">0</span>
</pre></div>

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