coc-settings.json

{
  "languageserver": {
    "golang": {
      "command": "gopls",
      "rootPatterns": ["go.mod", ".vim/", ".git/", ".hg/"],
      "filetypes": ["go"],
      "initializationOptions": {
        "usePlaceholders": true
      }
    },
    "ccls": {
        "command": "ccls",
        "args": ["--log-file=/tmp/ccls.log"],
        "filetypes": ["c", "cpp", "cuda", "objc", "objcpp"],
        "rootPatterns": [".ccls", "compile_commands.json", ".vim/", ".git/", ".hg/"],
        "initializationOptions": {
            "cache": {
                "directory": ".ccls-cache"
            },
            "clang": {
                "resourceDir": "$CODE_COMPLETE_CLANG_LIB_PATH"
            },
            "index": {
        "trackDependency": 1 ,
        "initialBlacklist": ["."]
            }
        }
    }
  },
  "suggest.noselect": false,
  "python.formatting.provider": "black"
}