coc-settings.json

{
  "coc.preferences.extensionUpdateCheck": "weekly",
  "coc.preferences.hoverTarget": "float",
  "coc.preferences.colorSupport": true,
  "highlight.colors.enable": true,
  "highlight.colorNames.enable": true,
  "list.previousKeymap": "<C-p>",
  "list.nextKeymap": "<C-n>",
  "diagnostic.displayByAle": false,
  "clangd.enabled": false,
  "java.format.enabled": true,
  "coc.preferences.formatOnSaveFiletypes": ["rust", "cpp, java"],
  "cmake.formatter": "cmake-format",
  "pairs.disableLanguages": [],
  "languageserver": {
    "ccls": {
      "command": "ccls",
      "filetypes": [
        "c",
        "cpp",
        "objc",
        "objcpp"
      ],
      "rootPatterns": [
        ".ccls",
        "compile_commands.json",
        ".vim/",
        ".git/",
        ".hg/"
      ],
      "initializationOptions": {
        "cache": {
          "directory": "/tmp/ccls"
        }
      }
    },
    "cmake": {
      "command": "cmake-language-server",
      "filetypes": [
        "cmake"
      ],
      "rootPatterns": [
        "build/"
      ],
      "initializationOptions": {
        "buildDirectory": "build"
      }
    },
    "golang": {
      "command": "gopls",
      "rootPatterns": [
        "go.mod",
        ".vim/",
        ".git/",
        ".hg/"
      ],
      "filetypes": [
        "go"
      ],
      "initializationOptions": {
        "usePlaceholders": true
      }
    }
  },
  "rust-analyzer.diagnostics.disabled": [
    "unresolved-proc-macro"
  ]
}