sammccall added a comment.
In D83099#2154416 <https://reviews.llvm.org/D83099#2154416>, @davidvancleve
wrote:
> Thanks for the quick response! Nope, no compile_commands.json files, and they
> didn't previously contain .clangd files.
Well, thanks for reporting this, this seems like a really bad bug, and we'd
like to get it fixed on the release branch ASAP.
(Just to check - also no compile_flags.txt or other compilation database
markers?)
Our best guess is this is a fairly long-standing bug in OverlayCDB: the storage
location would be ".cache/clangd/index" relative to the *working* directory in
some cases.
If this theory is correct:
- you'd be using an editor/plugin that sends compile commands over LSP (such as
YCM + ycm_extra_conf). What are you using?
- there should be relatively few *.idx files inside the extra directories (the
ones not near your compilation database), corresponding to files you've had
open rather than the whole project
- we don't know why this wouldn't also have been happenening with the old
`.clangd` directories - possible they were there but masked by `.gitignore`?
If this doesn't sound likely, it'd be really useful (as we haven't reproduced
this) to add a log line if you can, and capture a log.
Immediately below the llvm::sys::path::append that was changed in this patch,
if you could add:
log("BackgroundIndexStorage: File={0} SourceRoot={1} StorageDir={2}", File,
PI->SourceRoot, StorageDir);
Then delete all the `.cache` directories, open clangd and open files until they
come back, and grab the clangd stderr log (editors/plugins expose this in some
way).
This should give us something to go on, else we'll have to keep guessing...
Cheers, Sam
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D83099/new/
https://reviews.llvm.org/D83099
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