Failed to load compilation database from compile_commands.json: Unknown key: ""rebuild"

[hartvon]

Hello,
I encountered a problem when parsing compile_commands.json with clangd: Unknown key: ""rebuild"". After I manually removed the "rebuild" field in json file, clangd was able to parse it correctly.

clangd version: v18.1.3
clangd VS Code extension version: v0.1.33
bear version: v3.0.20

I wonder if the versions are incompatible. I couldn't find any version compatibility information between bear and clangd.

[rizsotto]

Thanks @hartvon for the report. I would need a bit more context in order to fix this.

What was the entry in the compilation database? And what was the original compiler call?

[hartvon]

@rizsotto , Thanks for your reply.
This is the sample item in compile_commands.json:

[
  {
    "arguments": [
      "/usr/bin/cc",
      "-c",
      "-pipe",
      "-O",
      "-W",
      "-Wall",
      "-Wpointer-arith",
      "-Wno-unused-parameter",
      "-Werror",
      "-g",
      "-O0",
      "-ggdb",
      "-I",
      "src/core",
      "-I",
      "src/event",
      "-I",
      "src/event/modules",
      "-I",
      "src/event/quic",
      "-I",
      "src/os/unix",
      "-I",
      "objs",
      "-I",
      "src/http",
      "-I",
      "src/http/modules",
      "-o",
      "objs/addon/ngx_http_proxy_connect_module/ngx_http_proxy_connect_module.o",
      "./modules/ngx_http_proxy_connect_module/ngx_http_proxy_connect_module.c"
    ],
    "directory": "/home/code/nginx-1.26.2",
    "file": "/home/code/nginx-1.26.2/modules/ngx_http_proxy_connect_module/ngx_http_proxy_connect_module.c",
    "output": "/home/code/nginx-1.26.2/objs/addon/ngx_http_proxy_connect_module/ngx_http_proxy_connect_module.o",
    "rebuild": false
  }
]

Compiler version:

$ /usr/bin/cc --version
cc (GCC) 10.3.1

bear command is executed as follows:

bear -- make -j8

Hopes it's sufficient.

[rizsotto]

Sorry for the late reply. Yes, the compilation database should not have extra fields like rebuild. And Bear was never intended to emit that field in any versions. (Was grepping the source code and have not found this string in the sources.)

Not sure how can that happen.