<table><tr><td style="">mwolff requested changes to this revision.<br />mwolff added a comment.<br />This revision now requires changes to proceed.
</td><a style="text-decoration: none; padding: 4px 8px; margin: 0 8px 8px; float: right; color: #464C5C; font-weight: bold; border-radius: 3px; background-color: #F7F7F9; background-image: linear-gradient(to bottom,#fff,#f1f0f1); display: inline-block; border: 1px solid rgba(71,87,120,.2);" href="https://phabricator.kde.org/D17289">View Revision</a></tr></table><br /><div><div><p>we use CXTranslationUnit_CreatePreambleOnFirstParse to get code completion results fast. otherwise the first code completion request would create the preamble, which felt much worse</p>
<p>otherwise this patch has some issues, but it goes in the right direction. you'll have to audit our whole platform then for use of <tt style="background: #ebebeb; font-size: 13px;">[QK]Process</tt> and ensure the original system env is used. I think these two greps should show you the places:</p>
<div class="remarkup-code-block" style="margin: 12px 0;" data-code-lang="text" data-sigil="remarkup-code-block"><pre class="remarkup-code" style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; padding: 12px; margin: 0; background: rgba(71, 87, 120, 0.08);">ack '[QK]Process \w' # full object instances
ack '[QK]Process::start' # static utilities</pre></div>
<p>that's ~50ish code locations... Quite a lot :-/</p></div></div><br /><div><strong>INLINE COMMENTS</strong><div><div style="margin: 6px 0 12px 0;"><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D17289#inline-102875">View Inline</a><span style="color: #4b4d51; font-weight: bold;">core.cpp:134</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; "> <span class="n">qCDebug</span><span class="p">(</span><span class="n">SHELL</span><span class="p">)</span> <span style="color: #aa2211"><<</span> <span style="color: #766510">"Creating controllers"</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"><span style="color: #304a96">#if defined(Q_OS_UNIX)</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">auto</span> <span class="n">tmpLocation</span> <span style="color: #aa2211">=</span> <span class="n">QStandardPaths</span><span style="color: #aa2211">::</span><span class="n">writableLocation</span><span class="p">(</span><span class="n">QStandardPaths</span><span style="color: #aa2211">::</span><span class="n">TempLocation</span><span class="p">);</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">imo this should also be handled on windows via <tt style="background: #ebebeb; font-size: 13px;">TMP</tt> and <tt style="background: #ebebeb; font-size: 13px;">TEMP</tt>, according to</p>
<p style="padding: 0; margin: 8px;"><a href="https://superuser.com/questions/709953/temp-vs-tmp-in-environment-variables" class="remarkup-link" target="_blank" rel="noreferrer">https://superuser.com/questions/709953/temp-vs-tmp-in-environment-variables</a></p></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D17289#inline-102868">View Inline</a><span style="color: #4b4d51; font-weight: bold;">core.cpp:136</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">auto</span> <span class="n">tmpLocation</span> <span style="color: #aa2211">=</span> <span class="n">QStandardPaths</span><span style="color: #aa2211">::</span><span class="n">writableLocation</span><span class="p">(</span><span class="n">QStandardPaths</span><span style="color: #aa2211">::</span><span class="n">TempLocation</span><span class="p">);</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">const</span> <span class="n">QString</span> <span style="color: #004012">tmpName</span><span class="p">(</span><span class="n">QStringLiteral</span><span class="p">(</span><span style="color: #766510">"/kdevelop-tmp-%1-"</span><span class="p">).</span><span class="n">arg</span><span class="p">(</span><span class="n">getuid</span><span class="p">()));</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">const</span> <span style="color: #aa4000">auto</span> <span class="n">pos</span> <span style="color: #aa2211">=</span> <span class="n">tmpLocation</span><span class="p">.</span><span class="n">lastIndexOf</span><span class="p">(</span><span class="n">tmpName</span><span class="p">);</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">all of this code shouldn't be required - the system env used to launch subprocesses should not use the changed tmpdir after all, so it cannot be recursive</p></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D17289#inline-102876">View Inline</a><span style="color: #4b4d51; font-weight: bold;">core.cpp:150</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">m_tmpDir</span><span style="color: #aa2211">-></span><span class="n">mkpath</span><span class="p">(</span><span class="n">tmpLocation</span><span class="p">);</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">if</span> <span class="p">(</span><span class="n">m_tmpDir</span><span style="color: #aa2211">-></span><span class="n">exists</span><span class="p">())</span> <span class="p">{</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">const</span> <span style="color: #aa4000">auto</span> <span class="n">origTmpDir</span> <span style="color: #aa2211">=</span> <span class="n">qgetenv</span><span class="p">(</span><span style="color: #766510">"TMPDIR"</span><span class="p">);</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">it exists, you create the path in the line above</p></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D17289#inline-102877">View Inline</a><span style="color: #4b4d51; font-weight: bold;">core.cpp:151</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">if</span> <span class="p">(</span><span class="n">m_tmpDir</span><span style="color: #aa2211">-></span><span class="n">exists</span><span class="p">())</span> <span class="p">{</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">const</span> <span style="color: #aa4000">auto</span> <span class="n">origTmpDir</span> <span style="color: #aa2211">=</span> <span class="n">qgetenv</span><span class="p">(</span><span style="color: #766510">"TMPDIR"</span><span class="p">);</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">if</span> <span class="p">(</span><span style="color: #aa2211">!</span><span class="n">origTmpDir</span><span class="p">.</span><span class="n">isEmpty</span><span class="p">())</span> <span class="p">{</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">instead of this code, you should do something like</p>
<div class="remarkup-code-block" style="margin: 12px 0;" data-code-lang="text" data-sigil="remarkup-code-block"><pre class="remarkup-code" style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; padding: 12px; margin: 0; background: rgba(71, 87, 120, 0.08);">#if defined(Q_OS_UNIX)
m_originalTmpDir = qEnvironmentVariable("TMPDIR");
qputenv("TMPDIR", tmpLocation.toLatin1());
#elif defined(Q_OS_WIN)
m_originalTmpDir = qEnvironmentVariable("TEMP");
if (m_originalTmpDir.isEmpty()) {
m_originalTmpDir = qEnvironmentVariable("TMP");
}
qputenv("TEMP", tmpLocation.toLatin1());
qputenv("TMP", tmpLocation.toLatin1());
#else
#error unhandled OS
#endif</pre></div></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D17289#inline-102871">View Inline</a><span style="color: #4b4d51; font-weight: bold;">core.cpp:341</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">if</span> <span class="p">(</span><span class="n">m_tmpDir</span><span style="color: #aa2211">-></span><span class="n">exists</span><span class="p">())</span> <span class="p">{</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">m_tmpDir</span><span style="color: #aa2211">-></span><span class="n">removeRecursively</span><span class="p">();</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">it must exist, no? we should always create it after all</p></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D17289#inline-102870">View Inline</a><span style="color: #4b4d51; font-weight: bold;">core.cpp:343</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">m_tmpDir</span><span style="color: #aa2211">-></span><span class="n">removeRecursively</span><span class="p">();</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">delete</span> <span class="n">m_tmpDir</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="p">}</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">don't make this a ptr</p></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D17289#inline-102874">View Inline</a><span style="color: #4b4d51; font-weight: bold;">core.cpp:482</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"><span class="p">{</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">env</span> <span style="color: #aa2211">=</span> <span class="n">QProcessEnvironment</span><span style="color: #aa2211">::</span><span class="n">systemEnvironment</span><span class="p">();</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">if</span> <span class="p">(</span><span style="color: #aa2211">!</span><span class="n">d</span><span style="color: #aa2211">-></span><span class="n">m_originalTmpDir</span><span class="p">.</span><span class="n">isEmpty</span><span class="p">())</span> <span class="p">{</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">this should essentially be</p>
<div class="remarkup-code-block" style="margin: 12px 0;" data-code-lang="text" data-sigil="remarkup-code-block"><pre class="remarkup-code" style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; padding: 12px; margin: 0; background: rgba(71, 87, 120, 0.08);">auto env = QProcessEnvironment::systemEnvironment();
env.insert(QStringLiteral("TMPDIR"), d->m_originalTmpDir);</pre></div></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D17289#inline-102873">View Inline</a><span style="color: #4b4d51; font-weight: bold;">core.cpp:483</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">env</span> <span style="color: #aa2211">=</span> <span class="n">QProcessEnvironment</span><span style="color: #aa2211">::</span><span class="n">systemEnvironment</span><span class="p">();</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">if</span> <span class="p">(</span><span style="color: #aa2211">!</span><span class="n">d</span><span style="color: #aa2211">-></span><span class="n">m_originalTmpDir</span><span class="p">.</span><span class="n">isEmpty</span><span class="p">())</span> <span class="p">{</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #74777d">// restore the original TMPDIR value</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">don't check whether it's empty or not, always insert the original value. this will essentially remove the TMPDIR env var then and whatever system default is picked up then</p></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D17289#inline-102872">View Inline</a><span style="color: #4b4d51; font-weight: bold;">core.cpp:485</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #74777d">// restore the original TMPDIR value</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">env</span><span class="p">.</span><span class="n">remove</span><span class="p">(</span><span class="n">QStringLiteral</span><span class="p">(</span><span style="color: #766510">"TMPDIR"</span><span class="p">));</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">env</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="n">QStringLiteral</span><span class="p">(</span><span style="color: #766510">"TMPDIR"</span> <span class="p">),</span> <span class="n">d</span><span style="color: #aa2211">-></span><span class="n">m_originalTmpDir</span><span class="p">);</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">insert will overwrite, so this line is not required</p></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D17289#inline-102866">View Inline</a><span style="color: #4b4d51; font-weight: bold;">core.h:100</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"><span style="color: #74777d"> */</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span style="color: #aa4000">void</span> <span style="color: #004012">systemEnvironment</span><span class="p">(</span><span class="n">QProcessEnvironment</span><span style="color: #aa2211">&</span> <span class="n">env</span><span class="p">)</span> <span style="color: #aa4000">const</span><span class="p">;</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">don't use out params, just return a QProcessEnvironment similar to how it's done in <tt style="background: #ebebeb; font-size: 13px;">QProcessEnvironment::systemEnvironment()</tt></p></div></div><br /><div style="border: 1px solid #C7CCD9; border-radius: 3px;"><div style="padding: 0; background: #F7F7F7; border-color: #e3e4e8; border-style: solid; border-width: 0 0 1px 0; margin: 0;"><div style="color: #74777d; background: #eff2f4; padding: 6px 8px; overflow: hidden;"><a style="float: right; text-decoration: none;" href="https://phabricator.kde.org/D17289#inline-102878">View Inline</a><span style="color: #4b4d51; font-weight: bold;">core_p.h:79</span></div>
<div style="font: 11px/15px "Menlo", "Consolas", "Monaco", monospace; white-space: pre-wrap; clear: both; padding: 4px 0; margin: 0;"><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">QString</span> <span class="n">m_originalTmpDir</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; background: rgba(151, 234, 151, .6);"> <span class="n">QDir</span><span style="color: #aa2211">*</span> <span class="n">m_tmpDir</span> <span style="color: #aa2211">=</span> <span class="n">nullptr</span><span class="p">;</span>
</div><div style="padding: 0 8px; margin: 0 4px; "><span class="p">};</span>
</div></div></div>
<div style="margin: 8px 0; padding: 0 12px;"><p style="padding: 0; margin: 8px;">no ptr</p></div></div></div></div></div><br /><div><strong>REPOSITORY</strong><div><div>R32 KDevelop</div></div></div><br /><div><strong>REVISION DETAIL</strong><div><a href="https://phabricator.kde.org/D17289">https://phabricator.kde.org/D17289</a></div></div><br /><div><strong>To: </strong>rjvbb, KDevelop, kfunk, mwolff<br /><strong>Cc: </strong>aaronpuchert, mwolff, pino, kfunk, kdevelop-devel, glebaccon, hase, antismap, iodelay, geetamc, Pilzschaf, akshaydeo, surgenight, arrowd<br /></div>