nvim-lsp

Collection of common configurations for the Nvim LSP client.

It is hoped that these configurations serve as a "source of truth", but they are strictly best effort. If something doesn't work, these configs are useful as a starting point, which you can adjust to fit your environment.

This is work-in-progress and requires Nvim HEAD/nightly. Update Nvim and nvim-lsp before reporting an issue.

Contributions are welcome!

There are many language servers in the world, and not enough time. Help us create configs for all the LSPs!

Read CONTRIBUTING.md for instructions. Ask questions in Neovim Gitter.
Choose a language from the coc.nvim wiki or the emacs-lsp project.
Create a new file at lua/nvim_lsp/SERVER_NAME.lua. See existing configs for examples (lua/nvim_lsp/texlab.lua is an extensive example).

Install

Requires Nvim HEAD/nightly (v0.5 prerelease).
nvim-lsp is just a plugin. Install it like any other Vim plugin.

e.g. vim-plug
```
:Plug 'neovim/nvim-lsp'
```
Call :packadd nvim-lsp in your vimrc if you installed nvim-lsp to 'packpath' or if you use a package manager such as minpac.

Usage

Each config provides a setup() function, to initialize the server with reasonable defaults and some server-specific things like commands or different diagnostics.

vim.cmd('packadd nvim-lsp')
require'nvim_lsp'.<config>.setup{name=…, settings = {…}, …}

Find the config for your language, then paste the example given there to your init.vim. All examples are given in Lua, see :help :lua-heredoc to use Lua from your init.vim.

Some configs may define additional server-specific functions, e.g. the texlab config provides nvim_lsp.texlab.buf_build({bufnr}).

Example: using the defaults

To use the defaults, just call setup() with an empty config parameter. For the gopls config, that would be:

vim.cmd('packadd nvim-lsp')
require'nvim_lsp'.gopls.setup{}

Example: override some defaults

To set some config properties at setup(), specify their keys. For example to change how the "project root" is found, set the root_dir key:

local nvim_lsp = require'nvim_lsp'
nvim_lsp.gopls.setup{
  root_dir = nvim_lsp.util.root_pattern('.git');
}

The documentation for each config lists default values and additional optional properties.

local nvim_lsp = require'nvim_lsp'
nvim_lsp.texlab.setup{
  name = 'texlab_fancy';
  log_level = vim.lsp.protocol.MessageType.Log;
  message_level = vim.lsp.protocol.MessageType.Log;
  settings = {
    latex = {
      build = {
        onSave = true;
      }
    }
  }
}

Example: custom config

To configure a custom/private server, just require nvim_lsp/configs and do the same as we do if we were adding it to the repository itself.

Define the config: configs.foo_lsp = { … }
Call setup(): require'nvim_lsp'.foo_lsp.setup{}

local nvim_lsp = require'nvim_lsp'
local configs = require'nvim_lsp/configs'
-- Check if it's already defined for when I reload this file.
if not nvim_lsp.foo_lsp then
  configs.foo_lsp = {
    default_config = {
      cmd = {'/home/ashkan/works/3rd/lua-language-server/run.sh'};
      filetypes = {'lua'};
      root_dir = function(fname)
        return nvim_lsp.util.find_git_ancestor(fname) or vim.loop.os_homedir()
      end;
      settings = {};
    };
  }
end
nvim_lsp.foo_lsp.setup{}

Example: orverride default config

If you want to change default configs for all servers, you can override default_config like this.

local nvim_lsp = require'nvim_lsp'
nvim_lsp.util.default_config = vim.tbl_extend(
  "force",
  nvim_lsp.util.default_config,
  { log_level = lsp.protocol.MessageType.Warning.Error }
)

Installing a language server

Configs may provide an install() function. Then you can use :LspInstall {name} to install the required language server. For example, to install the Elm language server:

:LspInstall elmls

Use :LspInstallInfo to see install info.

:LspInstallInfo

setup() function

The setup() interface:

nvim_lsp.SERVER.setup{config}

  The `config` parameter has the same shape as that of
  |vim.lsp.start_client()|, with these additions and changes:

  {root_dir}
    Required for some servers, optional for others.
    Function of the form `function(filename, bufnr)`.
    Called on new candidate buffers being attached-to.
    Returns either a root_dir or nil.

    If a root_dir is returned, then this file will also be attached. You
    can optionally use {filetype} to help pre-filter by filetype.

    If a root_dir is returned which is unique from any previously returned
    root_dir, a new server will be spawned with that root_dir.

    If nil is returned, the buffer is skipped.

    See |nvim_lsp.util.search_ancestors()| and the functions which use it:
    - |nvim_lsp.util.root_pattern(patterns...)| finds an ancestor which
    - contains one of the files in `patterns...`. This is equivalent
      to coc.nvim's "rootPatterns"
    - Related utilities for common tools:
      - |nvim_lsp.util.find_git_root()|
      - |nvim_lsp.util.find_node_modules_root()|
      - |nvim_lsp.util.find_package_json_root()|

  {name}
    Defaults to the server's name.

  {filetypes}
    Set of filetypes to filter for consideration by {root_dir}.
    May be empty.
    Server may specify a default value.

  {log_level}
    controls the level of logs to show from window/logMessage notifications. Defaults to
    vim.lsp.protocol.MessageType.Warning instead of
    vim.lsp.protocol.MessageType.Log.

  {message_level}
    controls the level of messages to show from window/showMessage notifications. Defaults to
    vim.lsp.protocol.MessageType.Warning instead of
    vim.lsp.protocol.MessageType.Log.

  {settings}
    Map with case-sensitive keys corresponding to `workspace/configuration`
    event responses.
    We also notify the server *once* on `initialize` with
    `workspace/didChangeConfiguration`.
    If you change the settings later on, you must emit the notification
    with `client.workspace_did_change_configuration({settings})`
    Example: `settings = { keyName = { subKey = 1 } }`

  {on_attach}
    `function(client)` executed with the current buffer as the one the {client}
    is being attached-to. This is different from
    |vim.lsp.start_client()|'s on_attach parameter, which passes the {bufnr} as
    the second parameter instead. Useful for doing buffer-local setup.

  {on_new_config}
    `function(new_config)` will be executed after a new configuration has been
    created as a result of {root_dir} returning a unique value. You can use this
    as an opportunity to further modify the new_config or use it before it is
    sent to |vim.lsp.start_client()|.

Configurations

The following LSP configs are included. Follow a link to find documentation for that config.

bashls
ccls
clangd
cssls
dartls
dockerls
efm
elmls
flow
fortls
gdscript
ghcide
gopls
hie
html
intelephense
jsonls
julials
leanls
metals
nimls
ocamlls
purescriptls
pyls
pyls_ms
rls
rust_analyzer
solargraph
sumneko_lua
terraformls
texlab
tsserver
vimls
vuels
yamlls

bashls

https://github.com/mads-hartmann/bash-language-server

Language server for bash, written using tree sitter in typescript.

Can be installed in Nvim with :LspInstall bashls

require'nvim_lsp'.bashls.setup{}

  Default Values:
    cmd = { "bash-language-server", "start" }
    filetypes = { "sh" }
    root_dir = vim's starting directory

ccls

https://github.com/MaskRay/ccls/wiki

ccls relies on a JSON compilation database specified as compile_commands.json or, for simpler projects, a compile_flags.txt.

This server accepts configuration via the settings key.

Available settings:

ccls.cache.directory: string

Default: ".ccls-cache"

Absolute or relative (from the project root) path to the directory that the cached index will be stored in. Try to have this directory on an SSD. If empty, cached indexes will not be saved on disk.

${workspaceFolder} will be replaced by the folder where .vscode/settings.json resides.

Cache directories are project-wide, so this should be configured in the workspace settings so multiple indexes do not clash.

Example value: "/work/ccls-cache/chrome/"
ccls.cache.hierarchicalPath: boolean

If false, store cache files as $directory/@a@b/c.cc.blob

If true, $directory/a/b/c.cc.blob.
ccls.callHierarchy.qualified: boolean

Default: true

If true, use qualified names in the call hiearchy
ccls.clang.excludeArgs: array

Default: {}

An set of command line arguments to strip before passing to clang when indexing. Each list entry is a separate argument.
ccls.clang.extraArgs: array

Default: {}

An extra set of command line arguments to give clang when indexing. Each list entry is a separate argument.
ccls.clang.pathMappings: array

Default: {}

Translate paths in compile_commands.json entries, .ccls options and cache files. This allows to reuse cache files built otherwhere if the source paths are different.
ccls.clang.resourceDir: string

Default: ""

Default value to use for clang -resource-dir argument. This will be automatically supplied by ccls if not provided.
ccls.codeLens.enabled: boolean

Default: true

Specifies whether the references CodeLens should be shown.
ccls.codeLens.localVariables: boolean

Set to false to hide code lens on parameters and function local variables.
ccls.codeLens.renderInline: boolean

Enables a custom code lens renderer so code lens are displayed inline with code. This removes any vertical-space footprint at the cost of horizontal space.
ccls.completion.caseSensitivity: integer

Default: 2

Case sensitivity when code completion is filtered. 0: case-insensitive, 1: case-folded, i.e. insensitive if no input character is uppercase, 2: case-sensitive
ccls.completion.detailedLabel: boolean

When this option is enabled, the completion item label is very detailed, it shows the full signature of the candidate.
ccls.completion.duplicateOptional: boolean

For functions with default arguments, generate one more item per default argument.
ccls.completion.enableSnippetInsertion: boolean

If true, parameter declarations are inserted as snippets in function/method call arguments when completing a function/method call
ccls.completion.include.blacklist: array

Default: {}

ECMAScript regex that checks absolute path. If it partially matches, the file is not added to include path auto-complete. An example is "/CACHE/"
ccls.completion.include.maxPathSize: integer

Default: 37

Maximum length for path in #include proposals. If the path length goes beyond this number it will be elided. Set to 0 to always display the full path.
ccls.completion.include.suffixWhitelist: array

Default: { ".h", ".hpp", ".hh" }

Only files ending in one of these values will be shown in include auto-complete. Set to the empty-list to disable include auto-complete.
ccls.completion.include.whitelist: array

Default: {}

ECMAScript regex that checks absolute file path. If it does not partially match, the file is not added to include path auto-complete. An example is "/src/"
ccls.diagnostics.blacklist: array

Default: {}

Files that match these patterns won't be displayed in diagnostics view.
ccls.diagnostics.onChange: integer

Default: 1000

Time in milliseconds to wait before computing diagnostics on type. -1: disable diagnostics on type.
ccls.diagnostics.onOpen: integer

Default: 0

Time in milliseconds to wait before computing diagnostics when a file is opened.
ccls.diagnostics.onSave: integer

Default: 0

Time in milliseconds to wait before computing diagnostics when a file is saved.
ccls.diagnostics.spellChecking: boolean

Default: true

Whether to do spell checking on undefined symbol names when computing diagnostics.
ccls.diagnostics.whitelist: array

Default: {}

Files that match these patterns will be displayed in diagnostics view.
ccls.highlight.blacklist: array|null

Default: vim.NIL

Files that match these patterns won't have semantic highlight.
ccls.highlight.enum.face: array

Default: { "variable", "member" }
ccls.highlight.function.colors: array

Default: { "#e5b124", "#927754", "#eb992c", "#e2bf8f", "#d67c17", "#88651e", "#e4b953", "#a36526", "#b28927", "#d69855" }

Colors to use for semantic highlight. A good generator is http://tools.medialab.sciences-po.fr/iwanthue/. If multiple colors are specified, semantic highlight will cycle through them for successive symbols.
ccls.highlight.function.face: array

Default: {}
ccls.highlight.global.face: array

Default: { "fontWeight: bolder" }
ccls.highlight.globalVariable.face: array

Default: { "variable", "global" }
ccls.highlight.largeFileSize: integer|null

Default: vim.NIL

Disable semantic highlight for files larger than the size.
ccls.highlight.macro.colors: array

Default: { "#e79528", "#c5373d", "#e8a272", "#d84f2b", "#a67245", "#e27a33", "#9b4a31", "#b66a1e", "#e27a71", "#cf6d49" }

Colors to use for semantic highlight. A good generator is http://tools.medialab.sciences-po.fr/iwanthue/. If multiple colors are specified, semantic highlight will cycle through them for successive symbols.
ccls.highlight.macro.face: array

Default: { "variable" }
ccls.highlight.member.face: array

Default: { "fontStyle: italic" }
ccls.highlight.memberFunction.face: array

Default: { "function", "member" }
ccls.highlight.memberVariable.face: array

Default: { "variable", "member" }
ccls.highlight.namespace.colors: array

Default: { "#429921", "#58c1a4", "#5ec648", "#36815b", "#83c65d", "#417b2f", "#43cc71", "#7eb769", "#58bf89", "#3e9f4a" }

Colors to use for semantic highlight. A good generator is http://tools.medialab.sciences-po.fr/iwanthue/. If multiple colors are specified, semantic highlight will cycle through them for successive symbols.
ccls.highlight.namespace.face: array

Default: { "type" }
ccls.highlight.parameter.face: array

Default: { "variable" }
ccls.highlight.static.face: array

Default: { "fontWeight: bold" }
ccls.highlight.staticMemberFunction.face: array

Default: { "function", "static" }
ccls.highlight.staticMemberVariable.face: array

Default: { "variable", "static" }
ccls.highlight.staticVariable.face: array

Default: { "variable", "static" }
ccls.highlight.type.colors: array

Default: { "#e1afc3", "#d533bb", "#9b677f", "#e350b6", "#a04360", "#dd82bc", "#de3864", "#ad3f87", "#dd7a90", "#e0438a" }

Colors to use for semantic highlight. A good generator is http://tools.medialab.sciences-po.fr/iwanthue/. If multiple colors are specified, semantic highlight will cycle through them for successive symbols.
ccls.highlight.type.face: array

Default: {}
ccls.highlight.typeAlias.face: array

Default: { "type" }
ccls.highlight.variable.colors: array

Default: { "#587d87", "#26cdca", "#397797", "#57c2cc", "#306b72", "#6cbcdf", "#368896", "#3ea0d2", "#48a5af", "#7ca6b7" }

Colors to use for semantic highlight. A good generator is http://tools.medialab.sciences-po.fr/iwanthue/. If multiple colors are specified, semantic highlight will cycle through them for successive symbols.
ccls.highlight.variable.face: array

Default: {}
ccls.highlight.whitelist: array|null

Default: vim.NIL

Files that match these patterns will have semantic highlight.
ccls.index.blacklist: array

Default: {}

A translation unit (cc/cpp file) is not indexed if any of the ECMAScript regexes in this list partially matches translation unit's the absolute path.
ccls.index.initialBlacklist: array

Default: {}

Files matched by the regexes should not be indexed on initialization. Indexing is deferred to when they are opened.
ccls.index.initialWhitelist: array

Default: {}

Files matched by the regexes should be indexed on initialization.
ccls.index.maxInitializerLines: integer

Default: 15

Number of lines of the initializer / macro definition showed in hover.
ccls.index.multiVersion: integer

Default: 0

If not 0, a file will be indexed in each tranlation unit that includes it.
ccls.index.onChange: boolean

Allow indexing on textDocument/didChange. May be too slow for big projects, so it is off by default.
ccls.index.threads: number

Default: 0

Number of indexer threads. If 0, 80% of cores are used.
ccls.index.trackDependency: integer

Default: 2

Whether to reparse a file if write times of its dependencies have changed. The file will always be reparsed if its own write time changes.

0: no, 1: only during initial load of project, 2: yes
ccls.index.whitelist: array

Default: {}

If a translation unit's absolute path partially matches any ECMAScript regex in this list, it will be indexed. The whitelist takes priority over the blacklist. To only index files in the whitelist, make "ccls.index.blacklist" match everything, ie, set it to ".*".
ccls.launch.args: array

Default: {}

Array containing extra arguments to pass to the ccls binary
ccls.launch.command: string

Default: "ccls"

Path to the ccls binary (default assumes the binary is in the PATH)
ccls.misc.compilationDatabaseCommand: string

Default: ""

If not empty, the compilation database command to use
ccls.misc.compilationDatabaseDirectory: string

Default: ""

If not empty, the compilation database directory to use instead of the project root
ccls.misc.showInactiveRegions: boolean

Default: true

If true, ccls will highlight skipped ranges.
ccls.statusUpdateInterval: integer

Default: 2000

Interval between updating ccls status in milliseconds. Set to 0 to disable.
ccls.theme.dark.skippedRange.backgroundColor: string

Default: "rgba(18, 18, 18, 0.3)"

CSS color to apply to the background when the code region has been disabled by the preprocessor in a dark theme.
ccls.theme.dark.skippedRange.textColor: string

Default: "rgb(100, 100, 100)"

CSS color to apply to text when the code region has been disabled by the preprocessor in a dark theme.
ccls.theme.light.skippedRange.backgroundColor: string

Default: "rgba(220, 220, 220, 0.3)"

CSS color to apply to the background when the code region has been disabled by the preprocessor in a light theme.
ccls.theme.light.skippedRange.textColor: string

Default: "rgb(100, 100, 100)"

CSS color to apply to text when the code region has been disabled by the preprocessor in a light theme.
ccls.trace.websocketEndpointUrl: string

Default: ""

When set, logs all LSP messages to specified WebSocket endpoint.
ccls.treeViews.doubleClickTimeoutMs: number

Default: 500

If a tree view entry is double-clicked within this timeout value, vscode will navigate to the entry.
ccls.workspaceSymbol.caseSensitivity: integer

Default: 1

Case sensitivity when searching workspace symbols. 0: case-insensitive, 1: case-folded, i.e. insensitive if no input character is uppercase, 2: case-sensitive
ccls.workspaceSymbol.maxNum: number|null

Default: vim.NIL

The maximum number of global search (ie, Ctrl+P + #foo) search results to report. For small search strings on large projects there can be a massive number of results (ie, over 1,000,000) so this limit is important to avoid extremely long delays. null means use the default value provided by the ccls language server.

require'nvim_lsp'.ccls.setup{}

  Default Values:
    capabilities = default capabilities, with offsetEncoding utf-8
    cmd = { "ccls" }
    filetypes = { "c", "cpp", "objc", "objcpp" }
    on_init = function to handle changing offsetEncoding
    root_dir = root_pattern("compile_commands.json", "compile_flags.txt", ".git")

clangd

https://clang.llvm.org/extra/clangd/Installation.html

NOTE: Clang >= 9 is recommended! See this issue for more.

clangd relies on a JSON compilation database specified as compile_commands.json or, for simpler projects, a compile_flags.txt.

require'nvim_lsp'.clangd.setup{}

  Default Values:
    capabilities = default capabilities, with offsetEncoding utf-8
    cmd = { "clangd", "--background-index" }
    filetypes = { "c", "cpp", "objc", "objcpp" }
    on_init = function to handle changing offsetEncoding
    root_dir = root_pattern("compile_commands.json", "compile_flags.txt", ".git") or dirname

cssls

https://github.com/vscode-langservers/vscode-css-languageserver-bin

css-languageserver can be installed via :LspInstall cssls or by yourself with npm:

npm install -g vscode-css-languageserver-bin

Can be installed in Nvim with :LspInstall cssls

require'nvim_lsp'.cssls.setup{}

  Default Values:
    capabilities = default capabilities, with offsetEncoding utf-8
    cmd = { "css-languageserver", "--stdio" }
    filetypes = { "css", "scss", "less" }
    on_init = function to handle changing offsetEncoding
    root_dir = root_pattern("package.json")
    settings = {
      css = {
        validate = true
      },
      less = {
        validate = true
      },
      scss = {
        validate = true
      }
    }

dartls

https://github.com/dart-lang/sdk/tree/master/pkg/analysis_server/tool/lsp_spec

Language server for dart.

This server accepts configuration via the settings key.

Available settings:

dart.additionalAnalyzerFileExtensions: array

Default: {}

Array items: {type = "string"}

Additional file extensions that should be analyzed (usually used in combination with analyzer plugins).
dart.allowAnalytics: boolean

Default: true

Whether to send analytics such as startup timings, frequency of use of features and analysis server crashes.
dart.analysisExcludedFolders: array

Default: {}

Array items: {type = "string"}

An array of paths to be excluded from Dart analysis. This option should usually be set at the Workspace level.
dart.analysisServerFolding: boolean

Default: true

Whether to use folding data from the Dart analysis server instead of the built-in VS Code indent-based folding.
dart.analyzeAngularTemplates: boolean

Default: true

Whether to enable analysis for AngularDart templates (requires the angular_analyzer_plugin).
dart.analyzerAdditionalArgs: array

Default: {}

Array items: {type = "string"}

Additional arguments to pass to the Dart analysis server.
dart.analyzerDiagnosticsPort: null|number

Default: vim.NIL

The port number to be used for the Dart analysis server diagnostic server.
dart.analyzerInstrumentationLogFile: null|string

Default: vim.NIL

The path to a log file for very detailed logging in the Dart analysis server that may be useful when trying to diagnose analysis server issues.
dart.analyzerLogFile: null|string

Default: vim.NIL

The path to a log file for communication between Dart Code and the analysis server.
dart.analyzerObservatoryPort: null|number

Default: vim.NIL

The port number to be used for the Dart analysis server observatory.
dart.analyzerPath: null|string

Default: vim.NIL

The path to a custom Dart analysis server.
dart.analyzerSshHost: null|string

Default: vim.NIL

An SSH host to run the analysis server. This can be useful when modifying code on a remote machine using SSHFS.
dart.autoImportCompletions: boolean

Default: true

Whether to include symbols that have not been imported in the code completion list and automatically insert the required import when selecting them.
dart.buildRunnerAdditionalArgs: array

Default: {}

Array items: {type = "string"}

Additional args to pass to the build_runner when building/watching/serving.
dart.checkForSdkUpdates: boolean

Default: true

Whether to check you are using the latest version of the Dart SDK at startup.
dart.closingLabels: boolean

Default: true

Whether to show annotations against constructor, method invocations and lists that span multiple lines.
dart.debugExternalLibraries: boolean

Whether to mark external pub package libraries as debuggable, enabling stepping into them while debugging.
dart.debugSdkLibraries: boolean

Whether to mark SDK libraries as debuggable, enabling stepping into them while debugging.
dart.devToolsLogFile: null|string

Default: vim.NIL

The path to a low-traffic log file for the Dart DevTools service.
dart.devToolsPort: null|number

Default: vim.NIL

The port number to be used for the Dart DevTools.
dart.devToolsReuseWindows: boolean

Default: true

Whether to try to reuse existing DevTools windows instead of launching new ones. Only works for instances of DevTools launched by the DevTools server on the local machine.
dart.devToolsTheme: enum { "dark", "light" }

Default: "dark"

The theme to use for Dart DevTools.
dart.doNotFormat: array

Default: {}

Array items: {type = "string"}

An array of glob patterns that should be excluded for formatting. The pattern is matched against the absolute path of the file. Use /test/ to skip formatting for all test folders.
dart.enableCompletionCommitCharacters: boolean

Whether to automatically commit the selected completion item when pressing certain keys such as . , ( and [.
dart.enableSdkFormatter: boolean

Default: true

Whether to enable the dart_style formatter included with the Dart SDK.
dart.env: object

Default: vim.empty_dict()

Additional environment variables to be added to all Dart/Flutter processes spawned by the Dart and Flutter extensions.
dart.evaluateGettersInDebugViews: boolean

Default: true

Whether to evaluate getters in order to display them in debug views (such as the Variables, Watch and Hovers views).
dart.extensionLogFile: null|string

Default: vim.NIL

The path to a low-traffic log file for basic extension and editor issues.
dart.flutterAdbConnectOnChromeOs: boolean

Whether to automatically run 'adb connect 100.115.92.2:5555' when spawning the Flutter Daemon when running on Chrome OS.
dart.flutterAdditionalArgs: array

Default: {}

Array items: {type = "string"}

Additional args to pass to all flutter commands.
dart.flutterAndroidX: boolean

Whether to pass the --androidx flag when running the 'Flutter: New Project' command.
dart.flutterCreateAndroidLanguage: enum { "java", "kotlin" }

Default: "kotlin"

The programming language to use for Android apps when creating new projects using the 'Flutter: New Project' command.
dart.flutterCreateIOSLanguage: enum { "objc", "swift" }

Default: "swift"

The programming language to use for IOS apps when creating new projects using the 'Flutter: New Project' command.
dart.flutterCreateOrganization: null|string

Default: vim.NIL

The organization responsible for your new Flutter project, in reverse domain name notation. This string is used in Java package names and as prefix in the iOS bundle identifier when creating new projects using the 'Flutter: New Project' command.
dart.flutterDaemonLogFile: null|string

Default: vim.NIL

The path to a log file for the 'flutter daemon' communication which is the service that provides information about connected devices used to show in the status bar.
dart.flutterGutterIcons: boolean

Default: true

Whether to show Flutter icons and colors in the editor gutter.
dart.flutterHotReloadOnSave: boolean

Default: true

Whether to automatically send a Hot Reload request during debug session when saving files.
dart.flutterHotRestartOnSave: boolean

Default: true

Whether to automatically send a Hot Restart request during a debug session when saving files if Hot Reload is not available but Hot Restart is.
dart.flutterOutline: boolean

Default: true

Whether to show the Flutter Outline tree in the side bar.
dart.flutterRunLogFile: null|string

Default: vim.NIL

The path to a log file for 'flutter run' which is used to launch Flutter applications from VS Code. This is useful when trying to diagnose issues with applications launching (or failing to) on simulators and devices. Use ${name} in the log file name to prevent concurrent debug sessions overwriting each others logs.
dart.flutterScreenshotPath: null|string

Default: vim.NIL

The path to a directory to save Flutter screenshots.
dart.flutterSdkPath: null|string

Default: vim.NIL

The location of the Flutter SDK to use. If blank, Dart Code will attempt to find it from the project folder, FLUTTER_ROOT environment variable and the PATH environment variable.
dart.flutterSdkPaths: array

Default: {}

Array items: {type = "string"}

An array of strings that are either Flutter SDKs or folders that contains multiple Flutter SDKs in sub-folders. When set, the version number in the status bar will be clickable to quickly switch between SDKs.
dart.flutterSelectDeviceWhenConnected: boolean

Default: true

Whether to set newly connected devices as the current device in Flutter projects.
dart.flutterStructuredErrors: boolean

Default: true

Whether to use Flutter's structured error support for improve error display.
dart.flutterTestLogFile: null|string

Default: vim.NIL

The path to a log file for 'flutter test' which is used to run unit tests from VS Code. This is useful when trying to diagnose issues with unit test executions. Use ${name} in the log file name to prevent concurrent debug sessions overwriting each others logs.
dart.flutterTrackWidgetCreation: boolean

Default: true

Whether to pass --track-widget-creation to Flutter apps (required to support 'Inspect Widget'). This setting is always ignored when running in Profile or Release mode.
dart.insertArgumentPlaceholders: boolean

Default: true

Whether to insert argument placeholders during code completions. This feature is automatically disabled when enableCompletionCommitCharacters is enabled.
dart.lineLength: integer

Default: 80

The maximum length of a line of code. This is used by the document formatter.
dart.maxLogLineLength: number

Default: 2000

The maximum length of a line in the log file. Lines longer than this will be truncated and suffixed with an ellipsis.
dart.notifyAnalyzerErrors: boolean

Default: true

Whether to show a notification the first few times an analysis server exception occurs.
dart.observatoryLogFile: null|string

Default: vim.NIL

The path to a log file for communication between Dart Code and Observatory (the VM debugger). This is useful when trying to diagnose issues with debugging such as missed breakpoints. Use ${name} in the log file name to prevent concurrent debug sessions overwriting each others logs.
dart.openDevTools: enum { "never", "flutter", "always" }

Default: "never"

Whether to automatically open DevTools at the start of a debug session.
dart.openTestView: array

Default: { "testRunStart" }

Array items: {enum = { "testRunStart", "testFailure" }}

When to automatically switch focus to the test list (array to support multiple values).
dart.previewBuildRunnerTasks: boolean

Whether to register Pub Build Runner tasks with VS Code.
dart.previewFlutterUiGuides: boolean

Whether to enable the Flutter UI Guides preview.
dart.previewFlutterUiGuidesCustomTracking: boolean

Whether to enable custom tracking of Flutter UI guidelines (to hide some latency of waiting for the next Flutter Outline).
dart.previewHotReloadOnSaveWatcher: boolean

Whether to perform hot-reload-on-save based on a filesystem watcher for Dart files rather than using VS Code's onDidSave event. This allows reloads to trigger when external tools modify Dart source files.
dart.previewNewCompletionPlaceholders: boolean

Default: true

Whether to enable new behaviour for code completion to include @required arguments as placeholders (when using dart.insertArgumentPlaceholders).
dart.previewToStringInDebugViews: boolean

Whether to call toString() on objects when rendering them in debug views (such as the Variables, Watch and Hovers views). Only applies to views of 15 or fewer values for performance reasons.
dart.promptToGetPackages: boolean

Default: true

Whether to prompt to get packages when opening a project with out of date packages.
dart.promptToRunIfErrors: boolean

Default: true

Whether to prompt before running if there are errors in your project. Test scripts will be excluded from the check unless they're the script being run.
dart.pubAdditionalArgs: array

Default: {}

Array items: {type = "string"}

Additional args to pass to all pub commands.
dart.pubTestLogFile: null|string

Default: vim.NIL

The path to a log file for 'pub run test' runs. This is useful when trying to diagnose issues with unit test executions. Use ${name} in the log file name to prevent concurrent debug sessions overwriting each others logs.
dart.runPubGetOnPubspecChanges: boolean

Default: true

Whether to automatically run 'pub get' whenever pubspec.yaml is saved.
dart.sdkPath: null|string

Default: vim.NIL

The location of the Dart SDK to use for analyzing and executing code. If blank, Dart Code will attempt to find it from the PATH environment variable. When editing a Flutter project, the version of Dart included in the Flutter SDK is used in preference.
dart.sdkPaths: array

Default: {}

Array items: {type = "string"}

An array of strings that are either Dart SDKs or folders that contains multiple Dart SDKs in sub-folders. When set, the version number in the status bar will be clickable to quickly switch between SDKs.
dart.showDartDeveloperLogs: boolean

Default: true

Whether to show logs from dart:developer's log() function in the debug console.
dart.showDartPadSampleCodeLens: boolean

Default: true

Whether to show CodeLens actions in the editor for opening online DartPad samples.
dart.showIgnoreQuickFixes: boolean

Whether to show quick fixes for ignoring hints and lints.
dart.showTestCodeLens: boolean

Default: true

Whether to show CodeLens actions in the editor for quick running/debugging tests.
dart.showTodos: boolean

Default: true

Whether to show TODOs in the Problems list.
dart.triggerSignatureHelpAutomatically: boolean

Whether to automatically trigger signature help when pressing keys such as , and (.
dart.useKnownChromeOSPorts: boolean

Default: true

Whether to use specific ports for Observatory and DevTools when running in Chrome OS. This is required to connect from the native Chrome OS browser but will prevent apps from launching if the ports are already in-use (for example if trying to run a second app).
dart.vmAdditionalArgs: array

Default: {}

Array items: {type = "string"}

Additional args to pass to the Dart VM when running/debugging command line apps.
dart.warnWhenEditingFilesOutsideWorkspace: boolean

Default: true

Whether to show a warning when modifying files outside of the workspace.
dart.webDaemonLogFile: null|string

Default: vim.NIL

The path to a log file for communication between Dart Code and the webdev daemon. This is useful when trying to diagnose issues with launching web applications. Use ${name} in the log file name to prevent concurrent debug sessions overwriting each others logs.

require'nvim_lsp'.dartls.setup{}

  Default Values:
    cmd = { "dart", "/usr/lib/dart/bin/snapshots/analysis_server.dart.snapshot", "--lsp" }
    filetypes = { "dart" }
    init_options = {
      closingLabels = "true",
      fluttreOutline = "false",
      onlyAnalyzeProjectsWithOpenFiles = "false",
      outline = "true",
      suggestFromUnimportedLibraries = "true"
    }
    root_dir = root_pattern("pubspec.yaml")

dockerls

https://github.com/rcjsuen/dockerfile-language-server-nodejs

docker-langserver can be installed via :LspInstall dockerls or by yourself with npm:

npm install -g dockerfile-language-server-nodejs

Can be installed in Nvim with :LspInstall dockerls

require'nvim_lsp'.dockerls.setup{}

  Default Values:
    cmd = { "docker-langserver", "--stdio" }
    filetypes = { "Dockerfile", "dockerfile" }
    root_dir = root_pattern("Dockerfile")

efm

https://github.com/mattn/efm-langserver

General purpose Language Server that can use specified error message format generated from specified command.

require'nvim_lsp'.efm.setup{}

  Default Values:
    cmd = { "efm-langserver" }
    root_dir = root_pattern(".git")

elmls

https://github.com/elm-tooling/elm-language-server#installation

If you don't want to use Nvim to install it, then you can use:

npm install -g elm elm-test elm-format @elm-tooling/elm-language-server

Can be installed in Nvim with :LspInstall elmls This server accepts configuration via the settings key.

Available settings:

elmLS.elmAnalyseTrigger: enum { "change", "save", "never" }

Default: "change"

When do you want the extension to run elm-analyse? Might need a restart to take effect.
elmLS.elmFormatPath: string

Default: ""

The path to your elm-format executable. Should be empty by default, in that case it will assume the name and try to first get it from a local npm installation or a global one. If you set it manually it will not try to load from the npm folder.
elmLS.elmPath: string

Default: ""

The path to your elm executable. Should be empty by default, in that case it will assume the name and try to first get it from a local npm installation or a global one. If you set it manually it will not try to load from the npm folder.
elmLS.elmTestPath: string

Default: ""

The path to your elm-test executable. Should be empty by default, in that case it will assume the name and try to first get it from a local npm installation or a global one. If you set it manually it will not try to load from the npm folder.
elmLS.trace.server: enum { "off", "messages", "verbose" }

Default: "off"

Traces the communication between VS Code and the language server.

require'nvim_lsp'.elmls.setup{}

  Default Values:
    capabilities = default capabilities, with offsetEncoding utf-8
    cmd = { "elm-language-server" }
    filetypes = { "elm" }
    init_options = {
      elmAnalyseTrigger = "change",
      elmFormatPath = "elm-format",
      elmPath = "elm",
      elmTestPath = "elm-test"
    }
    on_init = function to handle changing offsetEncoding
    root_dir = root_pattern("elm.json")

flow

https://flow.org/ https://github.com/facebook/flow

See below for how to setup Flow itself. https://flow.org/en/docs/install/

See below for lsp command options.

npm run flow lsp -- --help

This server accepts configuration via the settings key.

Available settings:

flow.coverageSeverity: enum { "error", "warn", "info" }

Default: "info"

Type coverage diagnostic severity
flow.enabled: boolean

Default: true

Is flow enabled
flow.fileExtensions: array

Default: { ".js", ".mjs", ".jsx", ".flow", ".json" }

Array items: {type = "string"}

(Supported only when useLSP: false). File extensions to consider for flow processing
flow.lazyMode: string

Default: vim.NIL

Set value to enable flow lazy mode
flow.logLevel: enum { "error", "warn", "info", "trace" }

Default: "info"

Log level for output panel logs
flow.pathToFlow: string

Default: "flow"

Absolute path to flow binary. Special var ${workspaceFolder} or ${flowconfigDir} can be used in path (NOTE: in windows you can use '/' and can omit '.cmd' in path)
flow.runOnAllFiles: boolean

(Supported only when useLSP: false) Run Flow on all files, No need to put //@flow comment on top of files.
flow.runOnEdit: boolean

Default: true

If true will run flow on every edit, otherwise will run only when changes are saved (Note: 'useLSP: true' only supports syntax errors)
flow.showStatus: boolean

Default: true

(Supported only when useLSP: false) If true will display flow status is the statusbar
flow.showUncovered: boolean

If true will show uncovered code by default
flow.stopFlowOnExit: boolean

Default: true

Stop Flow on Exit
flow.trace.server

Default: "off"

Traces the communication between VSCode and the flow lsp service.
flow.useBundledFlow: boolean

Default: true

If true will use flow bundled with this plugin if nothing works
flow.useCodeSnippetOnFunctionSuggest: boolean

Default: true

Complete functions with their parameter signature.
flow.useLSP: boolean

Default: true

Turn off to switch from the official Flow Language Server implementation to talking directly to flow.
flow.useNPMPackagedFlow: boolean

Default: true

Support using flow through your node_modules folder, WARNING: Checking this box is a security risk. When you open a project we will immediately run code contained within it.

require'nvim_lsp'.flow.setup{}

  Default Values:
    cmd = { "npm", "run", "flow", "lsp" }
    filetypes = { "javascript", "javascriptreact", "javascript.jsx" }
    root_dir = root_pattern(".flowconfig")

fortls

https://github.com/hansec/fortran-language-server

Fortran Language Server for the Language Server Protocol

This server accepts configuration via the settings key.

Available settings:

fortran-ls.autocompletePrefix: boolean

Filter autocomplete suggestions with variable prefix
fortran-ls.displayVerWarning: boolean

Default: true

Provides notifications when the underlying language server is out of date.
fortran-ls.enableCodeActions: boolean

Enable experimental code actions (requires v1.7.0+).
fortran-ls.executablePath: string

Default: "fortls"

Path to the Fortran language server (fortls).
fortran-ls.hoverSignature: boolean

Show signature information in hover for argument (also enables 'variableHover').
fortran-ls.includeSymbolMem: boolean

Default: true

Include type members in document outline (also used for 'Go to Symbol in File')
fortran-ls.incrementalSync: boolean

Default: true

Use incremental synchronization for file changes.
fortran-ls.lowercaseIntrinsics: boolean

Use lowercase for intrinsics and keywords in autocomplete requests.
fortran-ls.maxCommentLineLength: number

Default: -1

Maximum comment line length (requires v1.8.0+).
fortran-ls.maxLineLength: number

Default: -1

Maximum line length (requires v1.8.0+).
fortran-ls.notifyInit: boolean

Notify when workspace initialization is complete (requires v1.7.0+).
fortran-ls.useSignatureHelp: boolean

Default: true

Use signature help instead of snippets when available.
fortran-ls.variableHover: boolean

Show hover information for variables.

require'nvim_lsp'.fortls.setup{}

  Default Values:
    cmd = { "fortls" }
    filetypes = { "fortran" }
    root_dir = root_pattern(".fortls")
    settings = {
      nthreads = 1
    }

gdscript

https://github.com/godotengine/godot

Language server for GDScript, used by Godot Engine.

require'nvim_lsp'.gdscript.setup{}

  Default Values:
    cmd = { "nc", "localhost", "6008" }
    filetypes = { "gd", "gdscript3" }
    root_dir = <function 1>

ghcide

https://github.com/digital-asset/ghcide

A library for building Haskell IDE tooling.

This server accepts configuration via the settings key.

Available settings:

hic.arguments: string

Default: "--lsp"

The arguments you would like to pass to the executable
hic.executablePath: string

Default: "ghcide"

The location of your ghcide executable

require'nvim_lsp'.ghcide.setup{}

  Default Values:
    cmd = { "ghcide", "--lsp" }
    filetypes = { "haskell", "lhaskell" }
    root_dir = root_pattern("stack.yaml", "hie-bios", "BUILD.bazel", "cabal.config", "package.yaml")

gopls

https://github.com/golang/tools/tree/master/gopls

Google's lsp server for golang.

require'nvim_lsp'.gopls.setup{}

  Default Values:
    cmd = { "gopls" }
    filetypes = { "go" }
    root_dir = root_pattern("go.mod", ".git")

hie

https://github.com/haskell/haskell-ide-engine

the following init_options are supported (see https://github.com/haskell/haskell-ide-engine#configuration):

init_options = {
  languageServerHaskell = {
    hlintOn = bool;
    maxNumberOfProblems = number;
    diagnosticsDebounceDuration = number;
    liquidOn = bool (default false);
    completionSnippetsOn = bool (default true);
    formatOnImportOn = bool (default true);
    formattingProvider = string (default "brittany", alternate "floskell");
  }
}

This server accepts configuration via the settings key.

Available settings:

languageServerHaskell.completionSnippetsOn: boolean

Default: true

Show snippets with type information when using code completion
languageServerHaskell.diagnosticsOnChange: boolean

Default: true

Compute diagnostics continuously as you type. Turn off to only generate diagnostics on file save.
languageServerHaskell.enableHIE: boolean

Default: true

Enable/disable HIE (useful for multi-root workspaces).
languageServerHaskell.formatOnImportOn: boolean

Default: true

When adding an import, use the formatter on the result
languageServerHaskell.formattingProvider: enum { "brittany", "floskell", "ormolu", "none" }

Default: "brittany"

The tool to use for formatting requests.
languageServerHaskell.hieExecutablePath: string

Default: ""

Set the path to your hie executable, if it's not already on your $PATH. Works with ~, ${HOME} and ${workspaceFolder}.
languageServerHaskell.hlintOn: boolean

Default: true

Get suggestions from hlint
languageServerHaskell.liquidOn: boolean

Get diagnostics from liquid haskell
languageServerHaskell.logFile: string

Default: ""

If set, redirects the logs to a file.
languageServerHaskell.maxNumberOfProblems: number

Default: 100

Controls the maximum number of problems produced by the server.
languageServerHaskell.noLspParam: boolean

Do not set the '--lsp' flag in the hie/hie-wrapper arguments when launching it
languageServerHaskell.showTypeForSelection.command.location: enum { "dropdown", "channel" }

Default: "dropdown"

Determines where the type information for selected text will be shown when the showType command is triggered (distinct from automatically showing this information when hover is triggered). dropdown: in a dropdown channel: will be revealed in an output channel
languageServerHaskell.showTypeForSelection.onHover: boolean

Default: true

If true, when an expression is selected, the hover tooltip will attempt to display the type of the entire expression - rather than just the term under the cursor.
languageServerHaskell.trace.server: enum { "off", "messages", "verbose" }

Default: "off"

Traces the communication between VSCode and the languageServerHaskell service.
languageServerHaskell.useCustomHieWrapper: boolean

Use your own custom wrapper for hie (remember to specify the path!). This will take precedence over useHieWrapper and hieExecutablePath.
languageServerHaskell.useCustomHieWrapperPath: string

Default: ""

Specify the full path to your own custom hie wrapper (e.g. ${HOME}/.hie-wrapper.sh). Works with ~, ${HOME} and ${workspaceFolder}.

require'nvim_lsp'.hie.setup{}

  Default Values:
    cmd = { "hie-wrapper", "--lsp" }
    filetypes = { "haskell" }
    root_dir = root_pattern("stack.yaml", "package.yaml", ".git")

html

https://github.com/vscode-langservers/vscode-html-languageserver-bin

html-languageserver can be installed via :LspInstall html or by yourself with npm:

npm install -g vscode-html-languageserver-bin

Can be installed in Nvim with :LspInstall html

require'nvim_lsp'.html.setup{}

  Default Values:
    capabilities = {
      offsetEncoding = { "utf-8", "utf-16" },
      textDocument = {
        completion = {
          completionItem = {
            commitCharactersSupport = false,
            deprecatedSupport = false,
            documentationFormat = { "markdown", "plaintext" },
            preselectSupport = false,
            snippetSupport = false
          },
          completionItemKind = {
            valueSet = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 }
          },
          contextSupport = false,
          dynamicRegistration = false
        },
        documentHighlight = {
          dynamicRegistration = false
        },
        documentSymbol = {
          dynamicRegistration = false,
          hierarchicalDocumentSymbolSupport = true,
          symbolKind = {
            valueSet = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 }
          }
        },
        hover = {
          contentFormat = { "markdown", "plaintext" },
          dynamicRegistration = false
        },
        references = {
          dynamicRegistration = false
        },
        signatureHelp = {
          dynamicRegistration = false,
          signatureInformation = {
            documentationFormat = { "markdown", "plaintext" }
          }
        },
        synchronization = {
          didSave = true,
          dynamicRegistration = false,
          willSave = false,
          willSaveWaitUntil = false
        }
      }
    }
    cmd = { "html-languageserver", "--stdio" }
    filetypes = { "html" }
    init_options = {
      configurationSection = { "html", "css", "javascript" },
      embeddedLanguages = {
        css = true,
        javascript = true
      }
    }
    on_init = <function 1>
    root_dir = <function 1>
    settings = {}

intelephense

https://intelephense.com/

intelephense can be installed via :LspInstall intelephense or by yourself with npm:

npm install -g intelephense

Can be installed in Nvim with :LspInstall intelephense

require'nvim_lsp'.intelephense.setup{}

  Default Values:
    capabilities = default capabilities, with offsetEncoding utf-8
    cmd = { "intelephense", "--stdio" }
    filetypes = { "php" }
    on_init = function to handle changing offsetEncoding
    root_dir = root_pattern("composer.json", ".git")

jsonls

https://github.com/vscode-langservers/vscode-json-languageserver

vscode-json-languageserver, a language server for JSON and JSON schema

vscode-json-languageserver can be installed via :LspInstall jsonls or by yourself with npm:

npm install -g vscode-json-languageserver

Can be installed in Nvim with :LspInstall jsonls This server accepts configuration via the settings key.

Available settings:

json.colorDecorators.enable: boolean

Default: true

%json.colorDecorators.enable.desc%
json.format.enable: boolean

Default: true

%json.format.enable.desc%
json.maxItemsComputed: number

Default: 5000

%json.maxItemsComputed.desc%
json.schemas: array

Array items: {default = {fileMatch = { "/myfile" },url = "schemaURL"},properties = {fileMatch = {description = "%json.schemas.fileMatch.desc%",items = {default = "MyFile.json",description = "%json.schemas.fileMatch.item.desc%",type = "string"},minItems = 1,type = "array"},schema = {["$ref"] = "http://json-schema.org/draft-07/schema#",description = "%json.schemas.schema.desc%"},url = {default = "/user.schema.json",description = "%json.schemas.url.desc%",type = "string"}},type = "object"}

%json.schemas.desc%
json.trace.server: enum { "off", "messages", "verbose" }

Default: "off"

%json.tracing.desc%

require'nvim_lsp'.jsonls.setup{}

  Default Values:
    capabilities = {
      offsetEncoding = { "utf-8", "utf-16" },
      textDocument = {
        completion = {
          completionItem = {
            commitCharactersSupport = false,
            deprecatedSupport = false,
            documentationFormat = { "markdown", "plaintext" },
            preselectSupport = false,
            snippetSupport = false
          },
          completionItemKind = {
            valueSet = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 }
          },
          contextSupport = false,
          dynamicRegistration = false
        },
        documentHighlight = {
          dynamicRegistration = false
        },
        documentSymbol = {
          dynamicRegistration = false,
          hierarchicalDocumentSymbolSupport = true,
          symbolKind = {
            valueSet = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 }
          }
        },
        hover = {
          contentFormat = { "markdown", "plaintext" },
          dynamicRegistration = false
        },
        references = {
          dynamicRegistration = false
        },
        signatureHelp = {
          dynamicRegistration = false,
          signatureInformation = {
            documentationFormat = { "markdown", "plaintext" }
          }
        },
        synchronization = {
          didSave = true,
          dynamicRegistration = false,
          willSave = false,
          willSaveWaitUntil = false
        }
      }
    }
    cmd = { "vscode-json-languageserver", "--stdio" }
    filetypes = { "json" }
    on_init = <function 1>
    root_dir = root_pattern(".git", vim.fn.getcwd())

julials

https://github.com/julia-vscode/julia-vscode LanguageServer.jl can be installed via :LspInstall julials or by yourself the julia and Pkg:

julia -e 'using Pkg; Pkg.add("LanguageServer")'

Can be installed in Nvim with :LspInstall julials This server accepts configuration via the settings key.

Available settings:

julia.NumThreads: integer

Default: 1

Number of threads to use for Julia processes.
julia.additionalArgs: array

Default: {}

Additional julia arguments.
julia.enableCrashReporter: boolean|null

Default: vim.NIL

Enable crash reports to be sent to the julia VS Code extension developers.
julia.enableTelemetry: boolean|null

Default: vim.NIL

Enable usage data and errors to be sent to the julia VS Code extension developers.
julia.environmentPath: string|null

Default: vim.NIL

Path to a julia environment.
julia.executablePath: string

Default: ""

Points to the julia executable.
julia.format.calls: boolean

Default: true

Format function calls.
julia.format.comments: boolean

Default: true

Format comments.
julia.format.curly: boolean

Default: true

Format braces.
julia.format.docs: boolean

Default: true

Format inline documentation.
julia.format.indent: integer

Default: 4

Indent size for formatting.
julia.format.indents: boolean

Default: true

Format file indents.
julia.format.iterOps: boolean

Default: true

Format loop iterators.
julia.format.kw: boolean

Default: true

Remove spaces around = in function keywords.
julia.format.ops: boolean

Default: true

Format whitespace around operators.
julia.format.tuples: boolean

Default: true

Format tuples.
julia.lint.call: boolean

Check calls against existing methods. (experimental)
julia.lint.constif: boolean

Default: true

Check for constant conditionals of if statements.
julia.lint.iter: boolean

Default: true

Check iterator syntax of loops.
julia.lint.lazy: boolean

Default: true

Check for deterministic lazy boolean operators.
julia.lint.missingrefs: boolean

Default: true

Report possibly missing references.
julia.lint.modname: boolean

Default: true

Check for invalid submodule names.
julia.lint.pirates: boolean

Default: true

Check for type piracy.
julia.lint.run: boolean

Default: true

Run the linter on active files.
julia.lint.typeparam: boolean

Default: true

Check for unused DataType parameters.
julia.trace.server: enum { "off", "messages", "verbose" }

Default: "off"

Traces the communication between VS Code and the language server.
julia.useCustomSysimage: boolean

Default: "false"

Use an existing custom sysimage when starting the REPL
julia.usePlotPane: boolean

Default: true

Display plots within vscode.
julia.useRevise: boolean

Default: true

Load Revise.jl on startup of the REPL.

require'nvim_lsp'.julials.setup{}

  Default Values:
    cmd = { "julia", "--project", "--startup-file=no", "--history-file=no", "-e", "        using LanguageServer;\n        using Pkg;\n        server = LanguageServer.LanguageServerInstance(stdin, stdout, false, dirname(Pkg.Types.Context().env.project_file));\n        server.runlinter = true; run(server);\n        " }
    filetypes = { "julia" }
    root_dir = <function 1>

leanls

https://github.com/leanprover/lean-client-js/tree/master/lean-language-server

Lean language server.

This server accepts configuration via the settings key.

Available settings:

lean.executablePath: string

Default: "lean"

Path to the Lean executable to use.
lean.extraOptions: array

Default: {}

Array items: {description = "a single command-line argument",type = "string"}

Extra command-line options for the Lean server.
lean.infoViewAllErrorsOnLine: boolean

Info view: show all errors on the current line, instead of just the ones on the right of the cursor.
lean.infoViewAutoOpen: boolean

Default: true

Info view: open info view when Lean extension is activated.
lean.infoViewAutoOpenShowGoal: boolean

Default: true

Info view: auto open shows goal and messages for the current line (instead of all messages for the whole file)
lean.infoViewFilterIndex: number

Default: -1

Index of the filter applied to the tactic state (in the array infoViewTacticStateFilters). An index of -1 means no filter is applied.
lean.infoViewStyle: string

Default: ""

Add an additional CSS snippet to the info view.
lean.infoViewTacticStateFilters: array

Default: { {flags = "",match = false,regex = "^_"}, {flags = "",match = true,name = "goals only",regex = "^(⊢|\\d+ goals|case|$)"} }

Array items: {description = "an object with required properties 'regex': string, 'match': boolean, and 'flags': string, and optional property 'name': string",properties = {flags = {description = "additional flags passed to the RegExp constructor, e.g. 'i' for ignore case",type = "string"},match = {description = "whether tactic state lines matching the value of 'regex' should be included (true) or excluded (false)",type = "boolean"},name = {description = "name displayed in the dropdown",type = "string"},regex = {description = "a properly-escaped regex string, e.g. '^_' matches any string beginning with an underscore",type = "string"}},required = { "regex", "match", "flags" },type = "object"}

An array of objects containing regular expression strings that can be used to filter (positively or negatively) the tactic state in the info view. Set to an empty array '[]' to hide the filter select dropdown.

Each object must contain the following keys: 'regex': string, 'match': boolean, 'flags': string. 'regex' is a properly-escaped regex string, 'match' = true (false) means blocks in the tactic state matching 'regex' will be included (excluded) in the info view, 'flags' are additional flags passed to the JavaScript RegExp constructor. The 'name' key is optional and may contain a string that is displayed in the dropdown instead of the full regex details.
lean.input.customTranslations: object

Default: vim.empty_dict()

Array items: {description = "Unicode character to translate to",type = "string"}

Add additional input Unicode translations. Example: {"foo": "☺"} will correct \foo to ☺.
lean.input.enabled: boolean

Default: true

Enable Lean input mode.
lean.input.languages: array

Default: { "lean" }

Array items: {description = "the name of a language, e.g. 'lean', 'markdown'",type = "string"}

Enable Lean Unicode input in other file types.
lean.input.leader: string

Default: "\\"

Leader key to trigger input mode.
lean.leanpkgPath: string

Default: "leanpkg"

Path to the leanpkg executable to use.
lean.memoryLimit: number

Default: 4096

Set a memory limit (in megabytes) for the Lean server.
lean.progressMessages: boolean

Show error messages where Lean is still checking.
lean.roiModeDefault: string

Default: "visible"

Set the default region of interest mode (nothing, visible, lines, linesAndAbove, open, or project) for the Lean extension.
lean.timeLimit: number

Default: 100000

Set a deterministic timeout (it is approximately the maximum number of memory allocations in thousands) for the Lean server.
lean.typeInStatusBar: boolean

Default: true

Show the type of term under the cursor in the status bar.
lean.typesInCompletionList: boolean

Display types of all items in the list of completions. By default, only the type of the highlighted item is shown.

require'nvim_lsp'.leanls.setup{}

  Default Values:
    cmd = { "lean-language-server", "--stdio" }
    filetypes = { "lean" }
    root_dir = util.root_pattern(".git")

metals

https://scalameta.org/metals/

Scala language server with rich IDE features. metals can be installed via :LspInstall metals.

Can be installed in Nvim with :LspInstall metals This server accepts configuration via the settings key.

Available settings:

metals.bloopSbtAlreadyInstalled: boolean
metals.bloopVersion: string
metals.customRepositories: array

Array items: {type = "string"}
metals.gradleScript: string
metals.javaHome: string
metals.mavenScript: string
metals.millScript: string
metals.sbtScript: string
metals.scalafmtConfigPath: string
metals.serverProperties: array

Array items: {type = "string"}
metals.serverVersion: string

Default: "0.8.3"

require'nvim_lsp'.metals.setup{}

  Default Values:
    cmd = { "metals" }
    filetypes = { "scala" }
    root_dir = util.root_pattern("build.sbt")

nimls

https://github.com/PMunch/nimlsp nimlsp can be installed via :LspInstall nimls or by yourself the nimble package manager:

nimble install nimlsp

Can be installed in Nvim with :LspInstall nimls This server accepts configuration via the settings key.

Available settings:

nim.buildCommand: string

Default: "c"

Nim build command (c, cpp, doc, etc)
nim.buildOnSave: boolean

Execute build task from tasks.json file on save.
nim.licenseString: string

Default: ""

Optional license text that will be inserted on nim file creation.
nim.lintOnSave: boolean

Default: true

Check code by using 'nim check' on save.
nim.logNimsuggest: boolean

Enable verbose logging of nimsuggest to use profile directory.
nim.nimsuggestRestartTimeout: integer

Default: 60

Nimsuggest will be restarted after this timeout in minutes, if 0 then restart disabled.
nim.project: array

Default: {}

Nim project file, if empty use current selected.
nim.runOutputDirectory: string

Default: ""

Output directory for run selected file command. The directory is relative to the workspace root.
nim.test-project: string

Default: ""

Optional test project.

require'nvim_lsp'.nimls.setup{}

  Default Values:
    cmd = { "nimlsp" }
    filetypes = { "nim" }
    root_dir = root_pattern(".git") or os_homedir

ocamlls

https://github.com/ocaml-lsp/ocaml-language-server

ocaml-language-server can be installed via :LspInstall ocamlls or by yourself with npm

npm install -g ocaml-langauge-server

Can be installed in Nvim with :LspInstall ocamlls

require'nvim_lsp'.ocamlls.setup{}

  Default Values:
    cmd = { "ocaml-language-server", "--stdio" }
    filetypes = { "ocaml", "reason" }
    root_dir = root_pattern(".merlin", "package.json")

purescriptls

https://github.com/nwolverson/purescript-language-server purescript-language-server can be installed via :LspInstall purescriptls or by yourself with npm

npm install -g purescript-language-server

Can be installed in Nvim with :LspInstall purescriptls This server accepts configuration via the settings key.

Available settings:

purescript.addNpmPath: boolean

Whether to add the local npm bin directory to the PATH for purs IDE server and build command.
purescript.addPscPackageSources: boolean

Whether to add psc-package sources to the globs passed to the IDE server for source locations (specifically the output of psc-package sources, if this is a psc-package project). Update due to adding packages/changing package set requires psc-ide server restart.
purescript.addSpagoSources: boolean

Whether to add spago sources to the globs passed to the IDE server for source locations (specifically the output of spago sources, if this is a spago project). Update due to adding packages/changing package set requires psc-ide server restart.
purescript.autoStartPscIde: boolean

Default: true

Whether to automatically start/connect to purs IDE server when editing a PureScript file (includes connecting to an existing running instance). If this is disabled, various features like autocomplete, tooltips, and other type info will not work until start command is run manually.
purescript.autocompleteAddImport: boolean

Default: true

Whether to automatically add imported identifiers when accepting autocomplete result.
purescript.autocompleteAllModules: boolean

Default: true

Whether to always autocomplete from all built modules, or just those imported in the file. Suggestions from all modules always available by explicitly triggering autocomplete.
purescript.autocompleteGrouped: boolean

Default: true

Whether to group completions in autocomplete results. Requires compiler 0.11.6
purescript.autocompleteLimit: null|integer

Default: vim.NIL

Maximum number of results to fetch for an autocompletion request. May improve performance on large projects.
purescript.buildCommand: string

Default: "pulp build -- --json-errors"

Build command to use with arguments. Not passed to shell. eg pulp build -- --json-errors (this default requires pulp >=10)
purescript.censorWarnings: array

Default: {}

Array items: {type = "string"}

The warning codes to censor, both for fast rebuild and a full build. Unrelated to any psa setup. e.g.: ["ShadowedName","MissingTypeDeclaration"]
purescript.codegenTargets: array

Default: vim.NIL

Array items: {type = "string"}

List of codegen targets to pass to the compiler for rebuild. e.g. js, corefn. If not specified (rather than empty array) this will not be passed and the compiler will default to js. Requires 0.12.1+
purescript.editorMode: boolean

Whether to set the editor-mode flag on the IDE server
purescript.fastRebuild: boolean

Default: true

Enable purs IDE server fast rebuild
purescript.importsPreferredModules: array

Default: { "Prelude" }

Array items: {type = "string"}

Module to prefer to insert when adding imports which have been re-exported. In order of preference, most preferred first.
purescript.outputDirectory: string

Default: vim.NIL

Override purs ide output directory (output/ if not specified). This should match up to your build command
purescript.packagePath: string

Default: "bower_components"

Path to installed packages. Will be used to control globs passed to IDE server for source locations. Change requires IDE server restart.
purescript.polling: boolean

Whether to set the polling flag on the IDE server
purescript.preludeModule: string

Default: "Prelude"

Module to consider as your default prelude, if an auto-complete suggestion comes from this module it will be imported unqualified.
purescript.pscIdePort: integer|null

Default: vim.NIL

Port to use for purs IDE server (whether an existing server or to start a new one). By default a random port is chosen (or an existing port in .psc-ide-port if present), if this is specified no attempt will be made to select an alternative port on failure.
purescript.pscIdeServerExe: string

Default: "psc-ide-server"

Location of legacy psc-ide-server executable (resolved wrt PATH)
purescript.pscIdelogLevel: string

Default: ""

Log level for purs IDE server
purescript.pursExe: string

Default: "purs"

Location of purs executable (resolved wrt PATH)
purescript.sourcePath: string

Default: "src"

Path to application source root. Will be used to control globs passed to IDE server for source locations. Change requires IDE server restart.
purescript.trace.server: enum { "off", "messages", "verbose" }

Default: "off"

Traces the communication between VSCode and the PureScript language service.
purescript.useCombinedExe: boolean

Default: true

Whether to use the new combined purs executable. This will default to true in the future then go away.

require'nvim_lsp'.purescriptls.setup{}

  Default Values:
    capabilities = {
      offsetEncoding = { "utf-8", "utf-16" },
      textDocument = {
        completion = {
          completionItem = {
            commitCharactersSupport = false,
            deprecatedSupport = false,
            documentationFormat = { "markdown", "plaintext" },
            preselectSupport = false,
            snippetSupport = false
          },
          completionItemKind = {
            valueSet = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 }
          },
          contextSupport = false,
          dynamicRegistration = false
        },
        documentHighlight = {
          dynamicRegistration = false
        },
        documentSymbol = {
          dynamicRegistration = false,
          hierarchicalDocumentSymbolSupport = true,
          symbolKind = {
            valueSet = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 }
          }
        },
        hover = {
          contentFormat = { "markdown", "plaintext" },
          dynamicRegistration = false
        },
        references = {
          dynamicRegistration = false
        },
        signatureHelp = {
          dynamicRegistration = false,
          signatureInformation = {
            documentationFormat = { "markdown", "plaintext" }
          }
        },
        synchronization = {
          didSave = true,
          dynamicRegistration = false,
          willSave = false,
          willSaveWaitUntil = false
        }
      }
    }
    cmd = { "purescript-language-server", "--stdio" }
    filetypes = { "purescript" }
    on_init = <function 1>
    root_dir = root_pattern("spago.dhall, bower.json")

pyls

https://github.com/palantir/python-language-server

python-language-server, a language server for Python.

This server accepts configuration via the settings key.

Available settings:

pyls.configurationSources: array

Default: { "pycodestyle" }

Array items: {enum = { "pycodestyle", "pyflakes" },type = "string"}

List of configuration sources to use.
pyls.executable: string

Default: "pyls"

Language server executable
pyls.plugins.jedi.environment: string

Default: vim.NIL

Define environment for jedi.Script and Jedi.names.
pyls.plugins.jedi.extra_paths: array

Default: {}

Define extra paths for jedi.Script.
pyls.plugins.jedi_completion.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.plugins.jedi_completion.include_params: boolean

Default: true

Auto-completes methods and classes with tabstops for each parameter.
pyls.plugins.jedi_definition.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.plugins.jedi_definition.follow_builtin_imports: boolean

Default: true

If follow_imports is True will decide if it follow builtin imports.
pyls.plugins.jedi_definition.follow_imports: boolean

Default: true

The goto call will follow imports.
pyls.plugins.jedi_hover.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.plugins.jedi_references.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.plugins.jedi_signature_help.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.plugins.jedi_symbols.all_scopes: boolean

Default: true

If True lists the names of all scopes instead of only the module namespace.
pyls.plugins.jedi_symbols.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.plugins.mccabe.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.plugins.mccabe.threshold: number

Default: 15

The minimum threshold that triggers warnings about cyclomatic complexity.
pyls.plugins.preload.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.plugins.preload.modules: array

Default: vim.NIL

Array items: {type = "string"}

List of modules to import on startup
pyls.plugins.pycodestyle.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.plugins.pycodestyle.exclude: array

Default: vim.NIL

Array items: {type = "string"}

Exclude files or directories which match these patterns.
pyls.plugins.pycodestyle.filename: array

Default: vim.NIL

Array items: {type = "string"}

When parsing directories, only check filenames matching these patterns.
pyls.plugins.pycodestyle.hangClosing: boolean

Default: vim.NIL

Hang closing bracket instead of matching indentation of opening bracket's line.
pyls.plugins.pycodestyle.ignore: array

Default: vim.NIL

Array items: {type = "string"}

Ignore errors and warnings
pyls.plugins.pycodestyle.maxLineLength: number

Default: vim.NIL

Set maximum allowed line length.
pyls.plugins.pycodestyle.select: array

Default: vim.NIL

Array items: {type = "string"}

Select errors and warnings
pyls.plugins.pydocstyle.addIgnore: array

Default: vim.NIL

Array items: {type = "string"}

Ignore errors and warnings in addition to the specified convention.
pyls.plugins.pydocstyle.addSelect: array

Default: vim.NIL

Array items: {type = "string"}

Select errors and warnings in addition to the specified convention.
pyls.plugins.pydocstyle.convention: enum { "pep257", "numpy" }

Default: vim.NIL

Choose the basic list of checked errors by specifying an existing convention.
pyls.plugins.pydocstyle.enabled: boolean

Enable or disable the plugin.
pyls.plugins.pydocstyle.ignore: array

Default: vim.NIL

Array items: {type = "string"}

Ignore errors and warnings
pyls.plugins.pydocstyle.match: string

Default: "(?!test_).*\\.py"

Check only files that exactly match the given regular expression; default is to match files that don't start with 'test_' but end with '.py'.
pyls.plugins.pydocstyle.matchDir: string

Default: "[^\\.].*"

Search only dirs that exactly match the given regular expression; default is to match dirs which do not begin with a dot.
pyls.plugins.pydocstyle.select: array

Default: vim.NIL

Array items: {type = "string"}

Select errors and warnings
pyls.plugins.pyflakes.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.plugins.pylint.args: array

Default: vim.NIL

Array items: {type = "string"}

Arguments to pass to pylint.
pyls.plugins.pylint.enabled: boolean

Enable or disable the plugin.
pyls.plugins.rope_completion.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.plugins.yapf.enabled: boolean

Default: true

Enable or disable the plugin.
pyls.rope.extensionModules: string

Default: vim.NIL

Builtin and c-extension modules that are allowed to be imported and inspected by rope.
pyls.rope.ropeFolder: array

Default: vim.NIL

Array items: {type = "string"}

The name of the folder in which rope stores project configurations and data. Pass null for not using such a folder at all.

require'nvim_lsp'.pyls.setup{}

  Default Values:
    cmd = { "pyls" }
    filetypes = { "python" }
    root_dir = vim's starting directory

pyls_ms

https://github.com/Microsoft/python-language-server

python-language-server, a language server for Python.

Requires .NET Core to run. On Linux or macOS:

curl -L https://dot.net/v1/dotnet-install.sh | sh

This server accepts configuration via the settings key.

Can be installed in Nvim with :LspInstall pyls_ms

require'nvim_lsp'.pyls_ms.setup{}

  Default Values:
    filetypes = { "python" }
    init_options = {
      analysisUpdates = true,
      asyncStartup = true,
      displayOptions = {},
      interpreter = {
        properties = {
          InterpreterPath = "/usr/bin/python",
          Version = "2.7"
        }
      }
    }
    on_new_config = <function 1>
    root_dir = vim's starting directory
    settings = {
      python = {
        analysis = {
          disabled = {},
          errors = {},
          info = {}
        }
      }
    }

rls

https://github.com/rust-lang/rls

rls, a language server for Rust

See https://github.com/rust-lang/rls#setup to setup rls itself. See https://github.com/rust-lang/rls#configuration for rls-specific settings.

If you want to use rls for a particular build, eg nightly, set cmd as follows:

cmd = {"rustup", "run", "nightly", "rls"}

This server accepts configuration via the settings key.

Available settings:

rust-client.channel: enum { "stable", "beta", "nightly" }

Default: vim.NIL

Rust channel to invoke rustup with. Ignored if rustup is disabled. By default, uses the same channel as your currently open project.
rust-client.disableRustup: boolean

Disable usage of rustup and use rustc/rls from PATH.
rust-client.enableMultiProjectSetup: boolean

Allow multiple projects in the same folder, along with remove the constraint that the cargo.toml must be located at the root. (Experimental: might not work for certain setups)
rust-client.logToFile: boolean

When set to true, RLS stderr is logged to a file at workspace root level. Requires reloading extension after change.
rust-client.nestedMultiRootConfigInOutermost: boolean

Default: true

If one root workspace folder is nested in another root folder, look for the Rust config in the outermost root.
rust-client.revealOutputChannelOn: enum { "info", "warn", "error", "never" }

Default: "never"

Specifies message severity on which the output channel will be revealed. Requires reloading extension after change.
rust-client.rlsPath: string|null

Default: vim.NIL

Override RLS path. Only required for RLS developers. If you set this and use rustup, you should also set rust-client.channel to ensure your RLS sees the right libraries. If you don't use rustup, make sure to set rust-client.disableRustup.
rust-client.rustupPath: string

Default: "rustup"

Path to rustup executable. Ignored if rustup is disabled.
rust-client.trace.server: enum { "off", "messages", "verbose" }

Default: "off"

Traces the communication between VS Code and the Rust language server.
rust-client.updateOnStartup: boolean

Update the RLS whenever the extension starts up.
rust-client.useWSL: boolean

When set to true, RLS is started within Windows Subsystem for Linux.
rust.all_features: boolean

Enable all Cargo features.
rust.all_targets: boolean

Default: true

Checks the project as if you were running cargo check --all-targets (I.e., check all targets and integration tests too).
rust.build_bin: string|null

Default: vim.NIL

Specify to run analysis as if running cargo check --bin <name>. Use null to auto-detect. (unstable)
rust.build_command: string|null

Default: vim.NIL

EXPERIMENTAL (requires unstable_features) If set, executes a given program responsible for rebuilding save-analysis to be loaded by the RLS. The program given should output a list of resulting .json files on stdout. Implies rust.build_on_save: true.
rust.build_lib: boolean|null

Default: vim.NIL

Specify to run analysis as if running cargo check --lib. Use null to auto-detect. (unstable)
rust.build_on_save: boolean

Only index the project when a file is saved and not on change.
rust.cfg_test: boolean

Build cfg(test) code. (unstable)
rust.clear_env_rust_log: boolean

Default: true

Clear the RUST_LOG environment variable before running rustc or cargo.
rust.clippy_preference: enum { "on", "opt-in", "off" }

Default: "opt-in"

Controls eagerness of clippy diagnostics when available. Valid values are (case-insensitive):
- "off": Disable clippy lints.
- "on": Display the same diagnostics as command-line clippy invoked with no arguments (clippy::all unless overridden).
- "opt-in": Only display the lints explicitly enabled in the code. Start by adding #![warn(clippy::all)] to the root of each crate you want linted. You need to install clippy via rustup if you haven't already.
rust.crate_blacklist: array|null

Default: { "cocoa", "gleam", "glium", "idna", "libc", "openssl", "rustc_serialize", "serde", "serde_json", "typenum", "unicode_normalization", "unicode_segmentation", "winapi" }

Overrides the default list of packages for which analysis is skipped. Available since RLS 1.38
rust.features: array

Default: {}

A list of Cargo features to enable.
rust.full_docs: boolean|null

Default: vim.NIL

Instructs cargo to enable full documentation extraction during save-analysis while building the crate.
rust.jobs: number|null

Default: vim.NIL

Number of Cargo jobs to be run in parallel.
rust.no_default_features: boolean

Do not enable default Cargo features.
rust.racer_completion: boolean

Default: true

Enables code completion using racer.
rust.rustflags: string|null

Default: vim.NIL

Flags added to RUSTFLAGS.
rust.rustfmt_path: string|null

Default: vim.NIL

When specified, RLS will use the Rustfmt pointed at the path instead of the bundled one
rust.show_hover_context: boolean

Default: true

Show additional context in hover tooltips when available. This is often the type local variable declaration.
rust.show_warnings: boolean

Default: true

Show warnings.
rust.sysroot: string|null

Default: vim.NIL

--sysroot
rust.target: string|null

Default: vim.NIL

--target
rust.target_dir: string|null

Default: vim.NIL

When specified, it places the generated analysis files at the specified target directory. By default it is placed target/rls directory.
rust.unstable_features: boolean

Enable unstable features.
rust.wait_to_build: number

Default: 1500

Time in milliseconds between receiving a change notification and starting build.

require'nvim_lsp'.rls.setup{}

  Default Values:
    cmd = { "rls" }
    filetypes = { "rust" }
    root_dir = root_pattern("Cargo.toml")

rust_analyzer

https://github.com/rust-analyzer/rust-analyzer

rust-analyzer (aka rls 2.0), a language server for Rust

See docs for extra settings.

This server accepts configuration via the settings key.

Available settings:

rust-analyzer.cargo-watch.allTargets: boolean

Default: true
rust-analyzer.cargo-watch.arguments: array

Default: {}

Array items: {type = "string"}
rust-analyzer.cargo-watch.command: string

Default: "check"
rust-analyzer.cargo-watch.enable: boolean

Default: true
rust-analyzer.cargoFeatures.allFeatures: boolean

Default: true

Activate all available features
rust-analyzer.cargoFeatures.features: array

Default: {}

Array items: {type = "string"}

List of features to activate
rust-analyzer.cargoFeatures.loadOutDirsFromCheck: boolean
rust-analyzer.cargoFeatures.noDefaultFeatures: boolean
rust-analyzer.excludeGlobs: array

Default: {}

Array items: {type = "string"}

Paths to exclude from analysis
rust-analyzer.featureFlags: object

Default: vim.empty_dict()

Fine grained feature flags to disable annoying features
rust-analyzer.highlighting.semanticTokens: boolean

Use proposed semantic tokens API for syntax highlighting
rust-analyzer.highlightingOn: boolean

Highlight Rust code (overrides built-in syntax highlighting)
rust-analyzer.inlayHints.maxLength: null|integer

Default: 20

Maximum length for inlay hints
rust-analyzer.inlayHints.parameterHints: boolean

Default: true

Whether to show function parameter name inlay hints at the call site
rust-analyzer.inlayHints.typeHints: boolean

Default: true

Whether to show inlay type hints
rust-analyzer.lruCapacity: null|integer

Default: vim.NIL

Number of syntax trees rust-analyzer keeps in memory
rust-analyzer.rainbowHighlightingOn: boolean

When highlighting Rust code, use a unique color per identifier
rust-analyzer.rustfmtArgs: array

Default: {}

Array items: {type = "string"}

Additional arguments to rustfmt
rust-analyzer.serverPath: null|string

Default: vim.NIL

Path to rust-analyzer executable (points to bundled binary by default). If this is set, then "rust-analyzer.updates.channel" setting is not used
rust-analyzer.trace.extension: boolean

Enable logging of VS Code extensions itself
rust-analyzer.trace.server: enum { "off", "messages", "verbose" }

Default: "off"

Trace requests to the rust-analyzer
rust-analyzer.updates.askBeforeDownload: boolean

Default: true

Whether to ask for permission before downloading any files from the Internet
rust-analyzer.updates.channel: enum { "stable", "nightly" }

Default: "stable"
rust-analyzer.useClientWatching: boolean

Default: true

client provided file watching instead of notify watching.

require'nvim_lsp'.rust_analyzer.setup{}

  Default Values:
    capabilities = {
      offsetEncoding = { "utf-8", "utf-16" },
      textDocument = {
        completion = {
          completionItem = {
            commitCharactersSupport = false,
            deprecatedSupport = false,
            documentationFormat = { "markdown", "plaintext" },
            preselectSupport = false,
            snippetSupport = false
          },
          completionItemKind = {
            valueSet = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 }
          },
          contextSupport = false,
          dynamicRegistration = false
        },
        documentHighlight = {
          dynamicRegistration = false
        },
        documentSymbol = {
          dynamicRegistration = false,
          hierarchicalDocumentSymbolSupport = true,
          symbolKind = {
            valueSet = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 }
          }
        },
        hover = {
          contentFormat = { "markdown", "plaintext" },
          dynamicRegistration = false
        },
        references = {
          dynamicRegistration = false
        },
        signatureHelp = {
          dynamicRegistration = false,
          signatureInformation = {
            documentationFormat = { "markdown", "plaintext" }
          }
        },
        synchronization = {
          didSave = true,
          dynamicRegistration = false,
          willSave = false,
          willSaveWaitUntil = false
        }
      }
    }
    cmd = { "rust-analyzer" }
    filetypes = { "rust" }
    on_init = <function 1>
    root_dir = root_pattern("Cargo.toml", "rust-project.json")

solargraph

https://solargraph.org/

solargraph, a language server for Ruby

You can install solargraph via gem install.

gem install solargraph

This server accepts configuration via the settings key.

Available settings:

solargraph.autoformat: enum { true, false }

Enable automatic formatting while typing (WARNING: experimental)
solargraph.bundlerPath: string

Default: "bundle"

Path to the bundle executable, defaults to 'bundle'
solargraph.checkGemVersion: enum { true, false }

Default: true

Automatically check if a new version of the Solargraph gem is available.
solargraph.commandPath: string

Default: "solargraph"

Path to the solargraph command. Set this to an absolute path to select from multiple installed Ruby versions.
solargraph.completion: enum { true, false }

Default: true

Enable completion
solargraph.definitions: enum { true, false }

Default: true

Enable definitions (go to, etc.)
solargraph.diagnostics: enum { true, false }

Enable diagnostics
solargraph.externalServer: object

Default: {host = "localhost",port = 7658}

The host and port to use for external transports. (Ignored for stdio and socket transports.)
solargraph.folding: boolean

Default: true

Enable folding ranges
solargraph.formatting: enum { true, false }

Enable document formatting
solargraph.hover: enum { true, false }

Default: true

Enable hover
solargraph.logLevel: enum { "warn", "info", "debug" }

Default: "warn"

Level of debug info to log. warn is least and debug is most.
solargraph.references: enum { true, false }

Default: true

Enable finding references
solargraph.rename: enum { true, false }

Default: true

Enable symbol renaming
solargraph.symbols: enum { true, false }

Default: true

Enable symbols
solargraph.transport: enum { "socket", "stdio", "external" }

Default: "socket"

The type of transport to use.
solargraph.useBundler: boolean

Use bundle exec to run solargraph. (If this is true, the solargraph.commandPath setting is ignored.)

require'nvim_lsp'.solargraph.setup{}

  Default Values:
    cmd = { "solargraph", "stdio" }
    filetypes = { "ruby" }
    root_dir = root_pattern("Gemfile", ".git")

sumneko_lua

https://github.com/sumneko/lua-language-server

Lua language server. By default, this doesn't have a cmd set. This is because it doesn't provide a global binary. We provide an installer for Linux and macOS using :LspInstall. If you wish to install it yourself, here is a guide. So you should set cmd yourself like this.

require'nvim_lsp'.sumneko_lua.setup{
  cmd = {"path", "to", "cmd"};
  ...
}

If you install via our installer, if you execute :LspInstallInfo sumneko_lua, you can know cmd value.

Can be installed in Nvim with :LspInstall sumneko_lua This server accepts configuration via the settings key.

Available settings:

Lua.completion.callSnippet: enum { "Disable", "Both", "Replace" }

Default: "Disable"
Lua.completion.enable: boolean

Default: true
Lua.completion.keywordSnippet: enum { "Disable", "Both", "Replace" }

Default: "Replace"
Lua.develop.debuggerPort: integer

Default: 11412
Lua.develop.debuggerWait: boolean
Lua.develop.enable: boolean
Lua.diagnostics.disable: array

Array items: {type = "string"}
Lua.diagnostics.enable: boolean

Default: true
Lua.diagnostics.globals: array

Array items: {type = "string"}
Lua.diagnostics.severity: object
Lua.runtime.path: array

Default: { "?.lua", "?/init.lua", "?/?.lua" }

Array items: {type = "string"}
Lua.runtime.version: enum { "Lua 5.1", "Lua 5.2", "Lua 5.3", "Lua 5.4", "LuaJIT" }

Default: "Lua 5.3"
Lua.workspace.ignoreDir: array

Default: { ".vscode" }

Array items: {type = "string"}
Lua.workspace.ignoreSubmodules: boolean

Default: true
Lua.workspace.library: object
Lua.workspace.maxPreload: integer

Default: 300
Lua.workspace.preloadFileSize: integer

Default: 100
Lua.workspace.useGitIgnore: boolean

Default: true

require'nvim_lsp'.sumneko_lua.setup{}

  Default Values:
    filetypes = { "lua" }
    log_level = 2
    root_dir = root_pattern(".git") or os_homedir

terraformls

https://github.com/juliosueiras/terraform-lsp

Terraform language server You can use released binary or build your own.

This server accepts configuration via the settings key.

Available settings:

terraform.codelens.enabled: boolean

Default: true

Enable/disable the CodeLens feature
terraform.format: object

Default: {ignoreExtensionsOnSave = { ".tfsmurf" }}

Formatting settings
terraform.indexing: object

Default: {delay = 500,enabled = true,exclude = { ".terraform/**/*", "**/.terraform/**/*" },liveIndexing = false}

Indexes all terraform sources to get live syntax errors, rename support, go to symbol, and much more...
terraform.languageServer: object

Default: {args = {},enabled = false}

Configures how the language server runs and works
terraform.lintConfig: string|null

Default: vim.NIL

Path to the tflint config file.
terraform.lintPath: string

Default: "tflint"

Path to the tflint executable.
terraform.path: string

Default: "terraform"

Path to the terraform executable
terraform.paths: array

Default: {}

List of terraform paths or paths with versions
terraform.telemetry.enabled: boolean

Default: true

Enable/disable telemetry reporting for this plugin. The global telemetry.enableTelemetry is also respected. If the global is disabled, this setting has no effect.
terraform.templateDirectory: string

Default: "templates"

A relative path to where your templates are stored relative to the workspace root.

require'nvim_lsp'.terraformls.setup{}

  Default Values:
    cmd = { "terraform-lsp" }
    filetypes = { "terraform" }
    root_dir = root_pattern(".git")

texlab

https://texlab.netlify.com/

A completion engine built from scratch for (La)TeX.

See https://texlab.netlify.com/docs/reference/configuration for configuration options.

require'nvim_lsp'.texlab.setup{}

  Commands:
  - TexlabBuild: Build the current buffer
  
  Default Values:
    cmd = { "texlab" }
    filetypes = { "tex", "bib" }
    root_dir = vim's starting directory
    settings = {
      bibtex = {
        formatting = {
          lineLength = 120
        }
      },
      latex = {
        build = {
          args = { "-pdf", "-interaction=nonstopmode", "-synctex=1" },
          executable = "latexmk",
          onSave = false
        },
        forwardSearch = {
          args = {},
          onSave = false
        },
        lint = {
          onChange = false
        }
      }
    }

tsserver

https://github.com/theia-ide/typescript-language-server

typescript-language-server can be installed via :LspInstall tsserver or by yourself with npm:

npm install -g typescript-language-server

Can be installed in Nvim with :LspInstall tsserver

require'nvim_lsp'.tsserver.setup{}

  Default Values:
    capabilities = default capabilities, with offsetEncoding utf-8
    cmd = { "typescript-language-server", "--stdio" }
    filetypes = { "javascript", "javascriptreact", "javascript.jsx", "typescript", "typescriptreact", "typescript.tsx" }
    on_init = function to handle changing offsetEncoding
    root_dir = root_pattern("package.json")

vimls

require'nvim_lsp'.vimls.setup{}

  Default Values:
    cmd = { "vim-language-server", "--stdio" }
    docs = {
      description = "https://github.com/iamcco/vim-language-server\n\nIf you don't want to use Nvim to install it, then you can use:\n```sh\nnpm install -g vim-language-server\n```\n"
    }
    filetypes = { "vim" }
    init_options = {
      diagnostic = {
        enable = true
      },
      indexes = {
        count = 3,
        gap = 100,
        projectRootPatterns = { "runtime", "nvim", ".git", "autoload", "plugin" },
        runtimepath = true
      },
      iskeyword = "@,48-57,_,192-255,-#",
      runtimepath = "",
      suggest = {
        fromRuntimepath = true,
        fromVimruntime = true
      },
      vimruntime = ""
    }
    on_new_config = <function 1>
    root_dir = <function 1>

vuels

https://github.com/vuejs/vetur/tree/master/server

Vue language server(vls) vue-language-server can be installed via :LspInstall vuels or by yourself with npm:

npm install -g vls

Can be installed in Nvim with :LspInstall vuels This server accepts configuration via the settings key.

Available settings:

vetur.completion.autoImport: boolean

Default: true

Include completion for module export and auto import them
vetur.completion.scaffoldSnippetSources: object

Default: {user = "🗒️",vetur = "✌",workspace = "💼"}

Where Vetur source Scaffold Snippets from and how to indicate them. Set a source to "" to disable it.
- workspace: <WORKSPACE>/.vscode/vetur/snippets.
- user: <USER-DATA-DIR>/User/snippets/vetur.
- vetur: Bundled in Vetur.
The default is:
```
"vetur.completion.scaffoldSnippetSources": {
  "workspace": "💼",
  "user": "🗒️",
  "vetur": "✌"
}
```
Alternatively, you can do:
```
"vetur.completion.scaffoldSnippetSources": {
  "workspace": "(W)",
  "user": "(U)",
  "vetur": "(V)"
}
```
Read more: https://vuejs.github.io/vetur/snippet.html.
vetur.completion.tagCasing: enum { "initial", "kebab" }

Default: "kebab"

Casing conversion for tag completion
vetur.dev.logLevel: enum { "INFO", "DEBUG" }

Default: "INFO"

Log level for VLS
vetur.dev.vlsPath: string

Path to VLS for Vetur developers. There are two ways of using it.
1. Clone vuejs/vetur from GitHub, build it and point it to the ABSOLUTE path of /server.
2. yarn global add vue-language-server and point Vetur to the installed location (yarn global dir + node_modules/vue-language-server)
vetur.dev.vlsPort: number

Default: -1

The port that VLS listens to. Can be used for attaching to the VLS Node process for debugging / profiling.
vetur.experimental.templateInterpolationService: boolean

Enable template interpolation service that offers diagnostics / hover / definition / references.
vetur.format.defaultFormatter.css: enum { "none", "prettier" }

Default: "prettier"

Default formatter for <style> region
vetur.format.defaultFormatter.html: enum { "none", "prettyhtml", "js-beautify-html", "prettier" }

Default: "prettyhtml"

Default formatter for region
vetur.format.defaultFormatter.js: enum { "none", "prettier", "prettier-eslint", "vscode-typescript" }

Default: "prettier"

Default formatter for <script> region
vetur.format.defaultFormatter.less: enum { "none", "prettier" }

Default: "prettier"

Default formatter for <style lang='less'> region
vetur.format.defaultFormatter.postcss: enum { "none", "prettier" }

Default: "prettier"

Default formatter for <style lang='postcss'> region
vetur.format.defaultFormatter.sass: enum { "none", "sass-formatter" }

Default: "sass-formatter"

Default formatter for <style lang='sass'> region
vetur.format.defaultFormatter.scss: enum { "none", "prettier" }

Default: "prettier"

Default formatter for <style lang='scss'> region
vetur.format.defaultFormatter.stylus: enum { "none", "stylus-supremacy" }

Default: "stylus-supremacy"

Default formatter for <style lang='stylus'> region
vetur.format.defaultFormatter.ts: enum { "none", "prettier", "prettier-tslint", "vscode-typescript" }

Default: "prettier"

Default formatter for <script> region
vetur.format.defaultFormatterOptions: object

Default: {["js-beautify-html"] = {wrap_attributes = "force-expand-multiline"},prettyhtml = {printWidth = 100,singleQuote = false,sortAttributes = false,wrapAttributes = false}}

Options for all default formatters
vetur.format.enable: boolean

Default: true

Enable/disable the Vetur document formatter.
vetur.format.options.tabSize: number

Default: 2

Number of spaces per indentation level. Inherited by all formatters.
vetur.format.options.useTabs: boolean

Use tabs for indentation. Inherited by all formatters.
vetur.format.scriptInitialIndent: boolean

Whether to have initial indent for <script> region
vetur.format.styleInitialIndent: boolean

Whether to have initial indent for <style> region
vetur.grammar.customBlocks: object

Default: {docs = "md",i18n = "json"}

Mapping from custom block tag name to language name. Used for generating grammar to support syntax highlighting for custom blocks.
vetur.trace.server: enum { "off", "messages", "verbose" }

Default: "off"

Traces the communication between VS Code and Vue Language Server.
vetur.useWorkspaceDependencies: boolean

Use dependencies from workspace. Currently only for TypeScript.
vetur.validation.script: boolean

Default: true

Validate js/ts in <script>
vetur.validation.style: boolean

Default: true

Validate css/scss/less/postcss in <style>

vetur.validation.template: boolean

Default: true

Validate vue-html in using eslint-plugin-vue

require'nvim_lsp'.vuels.setup{}

  Default Values:
    cmd = { "vls" }
    filetypes = { "vue" }
    init_options = {
      config = {
        css = {},
        emmet = {},
        html = {
          suggest = {}
        },
        javascript = {
          format = {}
        },
        stylusSupremacy = {},
        typescript = {
          format = {}
        },
        vetur = {
          completion = {
            autoImport = false,
            tagCasing = "kebab",
            useScaffoldSnippets = false
          },
          format = {
            defaultFormatter = {
              js = "none",
              ts = "none"
            },
            defaultFormatterOptions = {},
            scriptInitialIndent = false,
            styleInitialIndent = false
          },
          useWorkspaceDependencies = false,
          validation = {
            script = true,
            style = true,
            template = true
          }
        }
      }
    }
    root_dir = root_pattern("package.json", "vue.config.js")

yamlls

https://github.com/redhat-developer/yaml-language-server

yaml-language-server can be installed via :LspInstall yamlls or by yourself with npm:

npm install -g yaml-language-server

Can be installed in Nvim with :LspInstall yamlls This server accepts configuration via the settings key.

Available settings:

yaml.completion: boolean

Default: true

Enable/disable completion feature
yaml.customTags: array

Default: {}

Custom tags for the parser to use
yaml.format.bracketSpacing: boolean

Default: true

Print spaces between brackets in objects
yaml.format.enable: boolean

Default: true

Enable/disable default YAML formatter
yaml.format.printWidth: integer

Default: 80

Specify the line length that the printer will wrap on
yaml.format.proseWrap: enum { "preserve", "never", "always" }

Default: "preserve"

Always: wrap prose if it exeeds the print width, Never: never wrap the prose, Preserve: wrap prose as-is
yaml.format.singleQuote: boolean

Use single quotes instead of double quotes
yaml.hover: boolean

Default: true

Enable/disable hover feature
yaml.schemaStore.enable: boolean

Default: true

Automatically pull available YAML schemas from JSON Schema Store
yaml.schemas: object

Default: vim.empty_dict()

Associate schemas to YAML files in the current workspace
yaml.trace.server: enum { "off", "messages", "verbose" }

Default: "off"

Traces the communication between VSCode and the YAML language service.
yaml.validate: boolean

Default: true

Enable/disable validation feature

require'nvim_lsp'.yamlls.setup{}

  Default Values:
    capabilities = {
      offsetEncoding = { "utf-8", "utf-16" },
      textDocument = {
        completion = {
          completionItem = {
            commitCharactersSupport = false,
            deprecatedSupport = false,
            documentationFormat = { "markdown", "plaintext" },
            preselectSupport = false,
            snippetSupport = false
          },
          completionItemKind = {
            valueSet = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 }
          },
          contextSupport = false,
          dynamicRegistration = false
        },
        documentHighlight = {
          dynamicRegistration = false
        },
        documentSymbol = {
          dynamicRegistration = false,
          hierarchicalDocumentSymbolSupport = true,
          symbolKind = {
            valueSet = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 }
          }
        },
        hover = {
          contentFormat = { "markdown", "plaintext" },
          dynamicRegistration = false
        },
        references = {
          dynamicRegistration = false
        },
        signatureHelp = {
          dynamicRegistration = false,
          signatureInformation = {
            documentationFormat = { "markdown", "plaintext" }
          }
        },
        synchronization = {
          didSave = true,
          dynamicRegistration = false,
          willSave = false,
          willSaveWaitUntil = false
        }
      }
    }
    cmd = { "yaml-language-server", "--stdio" }
    filetypes = { "yaml" }
    on_init = <function 1>
    root_dir = root_pattern(".git", vim.fn.getcwd())

liarokapisv/nvim-lsp

nvim-lsp

Contributions are welcome!

Install

Usage

Example: using the defaults

Example: override some defaults

Example: custom config

Example: orverride default config

Installing a language server

setup() function

Configurations

bashls

ccls

clangd

cssls

dartls

dockerls

efm

elmls

flow

fortls

gdscript

ghcide

gopls

hie

html

intelephense

jsonls

julials

leanls

metals

nimls

ocamlls

purescriptls

pyls

pyls_ms

rls

rust_analyzer

solargraph

sumneko_lua

terraformls

texlab

tsserver

vimls

vuels

yamlls