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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - BackgroundIndex doesn't trigger on Windows due to case mismatch"
href="https://bugs.llvm.org/show_bug.cgi?id=42781">42781</a>
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<th>Summary</th>
<td>BackgroundIndex doesn't trigger on Windows due to case mismatch
</td>
</tr>
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<th>Product</th>
<td>clang-tools-extra
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>release blocker
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>clangd
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>sammccall@google.com
</td>
</tr>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>VSCode is probably the most common/best editor to use with clangd on windows,
and always sends URIs with a lowercase drive letter (file://c:/...). Most tools
produce compile_commands.json with an uppercase drive letter in paths.
In this combination, the background index will entirely fail to work, as clangd
thinks the compile_commands.json doesn't correspond to the source files it
covers.</pre>
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</p>
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