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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Add ability to pass extra flags to clangd"
href="https://bugs.llvm.org/show_bug.cgi?id=41924">41924</a>
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<th>Summary</th>
<td>Add ability to pass extra flags to clangd
</td>
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<th>Product</th>
<td>clang-tools-extra
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>clangd
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>tdhutt@gmail.com
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>I have a CMake project which produces a compile_commands.json file. I'm using
it with the clangd VSCode extension. I'm thinking about moving to that from Qt
Creator. However one thing Qt Creator does a lot better is that you can specify
the warning flags for its code model and have them distinct from the actual
CMake compilation flags.
For example in CMake I basically have `-Wall -Wextra -Werror`. But in Qt
Creator I have `-Weverything` which is great when editing files because I get
nice inline warnings about stuff I might not have thought about.
I obviously don't want to enabled `-Weverything -Werror` in my actual build, so
is there a way to have Clangd use different diagnostic flags to the actual
build.
Solutions I have discounted:
* Add `compile_flags.txt` containing `-Wno-error -Weverything`. I haven't
actually tried this but looking at the source code it looks like you can't use
`compile_flags.txt` *and* `compiled_commands.json`.
* Run `compile_commands.json` through a script that modifies it. I really don't
want to do this because then clangd can't monitor it for changes (I'm not sure
that actually happens in practice but it *should* happen).</pre>
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