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This is an automatically generated e-mail. To reply, visit:
<a href="https://git.reviewboard.kde.org/r/128283/">https://git.reviewboard.kde.org/r/128283/</a>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470526#file470526line26" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/checksumswidget.ui</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <string extracomment="MD5, SHA1 and SHA256 are hashing algorithms">Expected checksum (MD5, SHA1 or SHA256)...</string></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">there two spaces before "are"</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470526#file470526line48" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/checksumswidget.ui</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <string extracomment="MD5 is the hashing algorithm">MD5:</string></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">two spaces after MD5</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470526#file470526line55" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/checksumswidget.ui</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <string extracomment="SHA1 is the hashing algorithm">SHA1:</string></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">same</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470527#file470527line2653" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/kpropertiesdialog.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">connect</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="o">&</span><span class="n">KChecksumsPlugin</span><span class="o">::</span><span class="n">defaultState</span><span class="p">,</span> <span class="k">this</span><span class="p">,</span> <span class="o">&</span><span class="n">KChecksumsPlugin</span><span class="o">::</span><span class="n">slotDefaultState</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Why the indirection via signal/slots? You could rename slotDefaultState() to setDefaultState() and just call it directly where you currently emit defaultState. Signals are meant for the "outside" (users of the class), but here they are internal.
Same for the other signals below.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">I think direct method calls will improve readability, the control flow will be easier to determine.</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470527#file470527line2661" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/kpropertiesdialog.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">connect</span><span class="p">(</span><span class="k">this</span><span class="p">,</span> <span class="o">&</span><span class="n">KChecksumsPlugin</span><span class="o">::</span><span class="n">defaultState</span><span class="p">,</span> <span class="n">d</span><span class="o">-></span><span class="n">m_ui</span><span class="p">.</span><span class="n">feedbackLabel</span><span class="p">,</span> <span class="o">&</span><span class="n">QWidget</span><span class="o">::</span><span class="n">hide</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">This would be done in setDefaultState(), for instance.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">If one day an if() has to be added or something, it will be easier ;)</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470527#file470527line2772" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/kpropertiesdialog.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">input</span><span class="p">.</span><span class="n">isEmpty</span><span class="p">()</span> <span class="o">?</span> <span class="n">emit</span> <span class="n">defaultState</span><span class="p">()</span> <span class="o">:</span> <span class="n">emit</span> <span class="n">invalidChecksum</span><span class="p">();</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">This should be an if(), not a tri-state operator returning void.</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470527#file470527line2777" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/kpropertiesdialog.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">connect</span><span class="p">(</span><span class="n">futureWatcher</span><span class="p">,</span> <span class="o">&</span><span class="n">QFutureWatcher</span><span class="o"><</span><span class="n">QString</span><span class="o">>::</span><span class="n">finished</span><span class="p">,</span> <span class="p">[</span><span class="o">=</span><span class="p">]()</span> <span class="p">{</span></pre></td>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470527#file470527line2799" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/kpropertiesdialog.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">isMatch</span> <span class="o">?</span> <span class="n">emit</span> <span class="n">match</span><span class="p">()</span> <span class="o">:</span> <span class="n">emit</span> <span class="n">mismatch</span><span class="p">();</span></pre></td>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470527#file470527line2844" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/kpropertiesdialog.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="c1">// Checksum in cache, nothing else to do.</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">what if the file changes while this dialog is up? (e.g. during a download).</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Maybe a change of size or mtime should invalidate the cache?</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470527#file470527line2851" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/kpropertiesdialog.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">connect</span><span class="p">(</span><span class="n">futureWatcher</span><span class="p">,</span> <span class="o">&</span><span class="n">QFutureWatcher</span><span class="o"><</span><span class="n">QString</span><span class="o">>::</span><span class="n">finished</span><span class="p">,</span> <span class="p">[</span><span class="o">=</span><span class="p">]()</span> <span class="p">{</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">add this as 3rg arg (to avoid crashes if the dialog is closed before this finishes)</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470527#file470527line2863" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/kpropertiesdialog.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="n">QString</span> <span class="n">KChecksumsPlugin</span><span class="o">::</span><span class="n">cachedChecksum</span><span class="p">(</span><span class="n">QCryptographicHash</span><span class="o">::</span><span class="n">Algorithm</span> <span class="n">algorithm</span><span class="p">)</span> <span class="k">const</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">This method is called from the secondary thread, so the private class needs a mutex to protect d->m_md5, d->m_sha1 and d->m_sha256</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Alternatively, check the cache outside of the method called by QtConcurrent. After all it's wasteful to create a QtConcurrent task just to realize we have no computation to do.</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470527#file470527line2896" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/kpropertiesdialog.cpp</a>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="n">QString</span> <span class="n">KChecksumsPlugin</span><span class="o">::</span><span class="n">computeChecksum</span><span class="p">(</span><span class="n">QCryptographicHash</span><span class="o">::</span><span class="n">Algorithm</span> <span class="n">algorithm</span><span class="p">)</span> <span class="k">const</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">I would make this a file-static method, to make sure you're not accessing any member variables from the class from a secondary thread (undefined behaviour, without a mutex).</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">If you remove the cache check and pass the filename as argument, then you don't need "this" anymore, it can be static and race-free.</p></pre>
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<a href="https://git.reviewboard.kde.org/r/128283/diff/8/?file=470527#file470527line2899" style="color: black; font-weight: bold; text-decoration: underline;">src/widgets/kpropertiesdialog.cpp</a>
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(Diff revision 8)
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="k">return</span> <span class="n">cachedChecksum</span><span class="p">(</span><span class="n">algorithm</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">double lookup, use a local variable</p></pre>
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<p>- David Faure</p>
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<p>On June 30th, 2016, 8:57 a.m. UTC, Elvis Angelaccio wrote:</p>
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<div>Review request for KDE Frameworks, KDE Usability and David Faure.</div>
<div>By Elvis Angelaccio.</div>
<p style="color: grey;"><i>Updated June 30, 2016, 8:57 a.m.</i></p>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
kio
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;"><p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">This patch adds a Checksums tab in the properties dialog, where the user can retrieve and verify the most popular checksum algorithms (md5, sha1 and sha256). </p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">To simplify the implementation, the checksums are computed as soon as the user opens the dialog. This can take a while if the file is huge (in particular with sha256), but the computation happens in another thread and in practice this should not be a performance problem.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">The tab is available only for readable local files (no simlinks) and only when there is a single selection.</p>
<p style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: inherit;">Please note that some of the labels in the screenshots are clipped due to a bug in breeze: https://bugs.kde.org/show_bug.cgi?id=364426</p></pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">Check whether the computed values match the values from md5sum, sha1sum, sha256sum.</li>
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">Check whether the line edits get a green background if the computed and expected values match.</li>
<li style="padding: 0;text-rendering: inherit;margin: 0;line-height: inherit;white-space: normal;">Check whether the line edits get a red background if the computed and expected values differ.</li>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>src/widgets/CMakeLists.txt <span style="color: grey">(f906577)</span></li>
<li>src/widgets/checksumswidget.ui <span style="color: grey">(PRE-CREATION)</span></li>
<li>src/widgets/kpropertiesdialog.cpp <span style="color: grey">(d0a2faa)</span></li>
<li>src/widgets/kpropertiesdialog_p.h <span style="color: grey">(c01554e)</span></li>
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<p><a href="https://git.reviewboard.kde.org/r/128283/diff/" style="margin-left: 3em;">View Diff</a></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">File Attachments </h1>
<li><a href="https://git.reviewboard.kde.org/media/uploaded/files/2016/06/26/b882fad9-85b0-4250-9743-3549339e6718__Spectacle.l10844.png">MD5 ready to be shared</a></li>
<li><a href="https://git.reviewboard.kde.org/media/uploaded/files/2016/06/27/ad06e136-7ce3-4876-a594-98fbc64f5538__Spectacle.M13222.png">Default dialog</a></li>
<li><a href="https://git.reviewboard.kde.org/media/uploaded/files/2016/06/27/99838e45-d9c5-4a14-b26a-9440f0249c4b__Spectacle.V13222.png">Mismatch</a></li>
<li><a href="https://git.reviewboard.kde.org/media/uploaded/files/2016/06/27/519fa28f-7c7d-4bb4-bd24-622d18d7f2e2__Spectacle.v13222.png">Match</a></li>
<li><a href="https://git.reviewboard.kde.org/media/uploaded/files/2016/06/27/a243c830-2dc0-4cbd-95e9-8f1684bc86a4__Spectacle.J13336.png">Invalid checksum</a></li>
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