Vim - LSP

LSP - Language Server Protocol

The Language Server Protocol (LSP) is an open, JSON-RPC-based protocol for use between source-code editors or integrated development environments (IDEs) and servers that provide “language intelligence tools”: programming language-specific features like code completion, syntax highlighting and marking of warnings and errors, as well as refactoring routines. The goal of the protocol is to allow programming language support to be implemented and distributed independently of any given editor or IDE. (reference - wikipedia)

Some of the example configurations are listed below.

• lua_ls

-- https://luals.github.io/wiki/settings/
return {
    settings = {
        Lua = {
            format = {
                enable = false
            },
            diagnostics = {
                globals = {"vim", "spec"}
            },
            runtime = {
                version = "LuaJIT",
                special = {
                    spec = "require"
                }
            },
            workspace = {
                checkThirdParty = false,
                library = {
                    [vim.fn.expand "$VIMRUNTIME/lua"] = true,
                    [vim.fn.stdpath "config" .. "/lua"] = true
                }
            },
            hint = {
                enable = false,
                arrayIndex = "Disable", -- "Enable" | "Auto" | "Disable"
                await = true,
                paramName = "Disable", -- "All" | "Literal" | "Disable"
                paramType = true,
                semicolon = "All", -- "All" | "SameLine" | "Disable"
                setType = false
            },
            telemetry = {
                enable = false
            }
        }
    }
}
 

• jsonls

return {
    settings = {
        json = {
            schemas = require("schemastore").json.schemas()
        }
    },
    setup = {
        commands = {
            Format = {
                function()
                    vim.lsp.buf.range_formatting({}, {0, 0}, {vim.fn.line "$", 0})
                end
            }
        }
    }
}
 

• jdtls

local nvim_lsp = require("lspconfig")
local install_path = require("mason-registry").get_package("jdtls"):get_install_path()
 
return {
    cmd = {
        "jdtls",
        install_path .. "/bin/jdtls",
        "--jvm-arg=-javaagent:" .. install_path .. "/lombok.jar",
        "-Declipse.application=org.eclipse.jdt.ls.core.id1",
        "-Dosgi.bundles.defaultStartLevel=4",
        "-Declipse.product=org.eclipse.jdt.ls.core.product",
        "-Dlog.protocol=true",
        "-Dlog.level=ALL",
        "-Xms1g",
        "--add-modules=ALL-SYSTEM",
        "--add-opens",
        "java.base/java.util=ALL-UNNAMED",
        "--add-opens",
        "java.base/java.lang=ALL-UNNAMED",
        "-data"
    },
    filetypes = {
        "java"
    },
    root_dir = nvim_lsp.util.root_pattern("pom.xml", "gradle.build", ".git"),
    settings = {
        java = {
            signatureHelp = {enabled = true},
            format = {enabled = true},
            codeGeneration = {
                toString = {template = "${object.className}{${member.name()}=${member.value}, ${otherMembers}}"}
            },
            sources = {
                organizeImports = {
                    starThreshold = 9999,
                    staticStarThreshold = 9999
                }
            },
            configuration = {
                runtimes = {
                    {
                        name = "JavaSE-1.8",
                        path = "C:\\Program Files\\Java\\jdk1.8.0_202\\bin",
                        default = true
                    }
                }
            }
        }
    }
}