coc-settings.json

{
    "suggest.labelMaxLength": 60,
    "suggest.completionItemKindLabels": {
        "class": "\uf0e8",
        "color": "\ue22b"
    },
    "cmake.formatter": "cmake-format",
    "languageserver": {
        "ccls": {
            "command": "ccls",
            "filetypes": [
                "c",
                "cpp",
                "objc",
                "objcpp"
            ],
            "rootPatterns": [
                "compile_commands.json"
            ],
            "trace.server": "verbose",
            "initializationOptions": {
                "cacheDirectory": "/tmp/ccls"
            }
        }
    },
    "clangd.path": "~/.config/coc/extensions/coc-clangd-data/install/16.0.2/clangd_16.0.2/bin/clangd",

    "java.enabled": true,
    "java.configuration.runtimes": [
        {
            "name": "JavaSE-11",
            "path": "/root/src/jdk",
            "default": true
        }
    ]
}