Adding a .ccls file to a project makes ccls stuck in loading state

[svillar]

Observed behavior

Whenever I add a .ccls file to a project which is already using compile_commands.json then ccls becomes stuck during the initialization (VSCode shows a persistent ccls: loading on the bottom right). This isn't a UI thing as I don't have indexing, completion etc...

Expected behavior

ccls is loaded normally

System information

• ccls version (git describe --tags): 0.20190823.6-1
• OS: Debian Linux
• Editor: VSCode
• vscode-ccls version (git describe --tags): 0.1.29

I'm attaching ccls.log after enabling logging and verbose output for ccls. As you can see it's stuck just before spawing the indexers.

[svillar]

I've attached a gdb session and it turns out that ccls is inspecting files in some remote webdav locations I have bind mounted in the projects' tree (not sure why that is not a problem without the .ccls file).

(gdb) bt
#0  __GI___lxstat (vers=1, 
    name=0x559748e91fa0 "/home/sergio/checkout/WebKit/WebKitBuild/UserFlatpak/var/run/user/1000/gvfs/dav:host=..."..., buf=0x7ffddf7465b8) at ../sysdeps/unix/sysv/linux/wordsize-64/lxstat.c:35
#1  0x00007f0b19ff8509 in llvm::sys::fs::status(llvm::Twine const&, llvm::sys::fs::file_status&, bool) () from /usr/lib/x86_64-linux-gnu/libLLVM-9.so.1
#2  0x0000559744508931 in ?? ()
#3  0x0000559744559d58 in ?? ()
#4  0x000055974455c202 in ?? ()

I've that particular directory listed in ccsls.index.blacklist BTW

[svillar]

Any idea? Anything I could do to help debugging the issue?

[svillar]

This is the kind of things I see with -v=2

23:52:24 ccls              project.cc:284 I use /home/sergio/checkout/WebKit/.ccls: %compile_commands.json %h -x %h c++-header %h --include=config.h %cpp --include=config.h
23:52:26 stdin            pipeline.cc:571 V(2) receive RequestMessage: 1 $ccls/info
23:52:28 stdin            pipeline.cc:571 V(2) receive RequestMessage: 2 $ccls/info
23:52:30 stdin            pipeline.cc:571 V(2) receive RequestMessage: 3 $ccls/info
23:52:32 stdin            pipeline.cc:571 V(2) receive RequestMessage: 4 $ccls/info
23:52:34 stdin            pipeline.cc:571 V(2) receive RequestMessage: 5 $ccls/info
23:52:36 stdin            pipeline.cc:571 V(2) receive RequestMessage: 6 $ccls/info
23:52:38 stdin            pipeline.cc:571 V(2) receive RequestMessage: 7 $ccls/info
23:52:40 stdin            pipeline.cc:571 V(2) receive RequestMessage: 8 $ccls/info

and it keeps going like that forever