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Racle/lspsaga.nvim

neovim lsp plugin

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README

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                          ⚡ Designed for convenience and efficiency ⚡

A lightweight LSP plugin based on Neovim's built-in LSP with a highly performant UI.

  1. Install
  2. Example Configuration
  3. Using Lspsaga
  4. Customizing Lspsaga's Appearance
  5. Backers
  6. Donate
  7. License

Install

You can use plugin managers like lazy.nvim and packer.nvim to install lspsaga and lazy load lspsaga using the plugin manager's keyword for lazy loading (lazy for lazy.nvim and opt for packer.nvim).

  • cmd - Load lspsaga only when a lspsaga command is called.
  • ft - lazy.nvim and packer.nvim both provide lazy loading by filetype. This way, you can load lspsaga according to the filetypes that you use a LSP in.
  • event - Only load lspsaga on an event like BufRead or BufReadPost. Do make sure that your LSP plugins, like lsp-zero or lsp-config, are loaded before loading lspsaga.
  • dependencies - For lazy.nvim you can set glepnir/lspsaga.nvim as a dependency of nvim-lspconfig using the dependencies keyword and vice versa. For packer.nvim you should use requires as the keyword instead.
  • after - For packer.nvim you can use after keyword to ensure lspsaga only loads after your LSP plugins have loaded. This is not necessary for lazy.nvim.

Lazy

require("lazy").setup({
    "glepnir/lspsaga.nvim",
    event = "BufRead",
    config = function()
        require("lspsaga").setup({})
    end,
    dependencies = { {"nvim-tree/nvim-web-devicons"} }
}, opt)

Packer

use({
    "glepnir/lspsaga.nvim",
    branch = "main",
    config = function()
        require("lspsaga").setup({})
    end,
    requires = { {"nvim-tree/nvim-web-devicons"} }
})

Example Configuration

require("lazy").setup({
    "glepnir/lspsaga.nvim",
    event = "BufRead",
    config = function()
      require("lspsaga").setup({})
    end,
    dependencies = { {"nvim-tree/nvim-web-devicons"} }
})

local keymap = vim.keymap.set

-- LSP finder - Find the symbol's definition
-- If there is no definition, it will instead be hidden
-- When you use an action in finder like "open vsplit",
-- you can use <C-t> to jump back
keymap("n", "gh", "<cmd>Lspsaga lsp_finder<CR>")

-- Code action
keymap({"n","v"}, "<leader>ca", "<cmd>Lspsaga code_action<CR>")

-- Rename all occurrences of the hovered word for the entire file
keymap("n", "gr", "<cmd>Lspsaga rename<CR>")

-- Rename all occurrences of the hovered word for the selected files
keymap("n", "gr", "<cmd>Lspsaga rename ++project<CR>")

-- Peek definition
-- You can edit the file containing the definition in the floating window
-- It also supports open/vsplit/etc operations, do refer to "definition_action_keys"
-- It also supports tagstack
-- Use <C-t> to jump back
keymap("n", "gd", "<cmd>Lspsaga peek_definition<CR>")

-- Go to definition
keymap("n","gd", "<cmd>Lspsaga goto_definition<CR>")

-- Show line diagnostics
-- You can pass argument ++unfocus to
-- unfocus the show_line_diagnostics floating window
keymap("n", "<leader>sl", "<cmd>Lspsaga show_line_diagnostics<CR>")

-- Show cursor diagnostics
-- Like show_line_diagnostics, it supports passing the ++unfocus argument
keymap("n", "<leader>sc", "<cmd>Lspsaga show_cursor_diagnostics<CR>")

-- Show buffer diagnostics
keymap("n", "<leader>sb", "<cmd>Lspsaga show_buf_diagnostics<CR>")

-- Diagnostic jump
-- You can use <C-o> to jump back to your previous location
keymap("n", "[e", "<cmd>Lspsaga diagnostic_jump_prev<CR>")
keymap("n", "]e", "<cmd>Lspsaga diagnostic_jump_next<CR>")

-- Diagnostic jump with filters such as only jumping to an error
keymap("n", "[E", function()
  require("lspsaga.diagnostic"):goto_prev({ severity = vim.diagnostic.severity.ERROR })
end)
keymap("n", "]E", function()
  require("lspsaga.diagnostic"):goto_next({ severity = vim.diagnostic.severity.ERROR })
end)

-- Toggle outline
keymap("n","<leader>o", "<cmd>Lspsaga outline<CR>")

-- Hover Doc
-- If there is no hover doc,
-- there will be a notification stating that
-- there is no information available.
-- To disable it just use ":Lspsaga hover_doc ++quiet"
-- Pressing the key twice will enter the hover window
keymap("n", "K", "<cmd>Lspsaga hover_doc<CR>")

-- If you want to keep the hover window in the top right hand corner,
-- you can pass the ++keep argument
-- Note that if you use hover with ++keep, pressing this key again will
-- close the hover window. If you want to jump to the hover window
-- you should use the wincmd command "<C-w>w"
keymap("n", "K", "<cmd>Lspsaga hover_doc ++keep<CR>")

-- Call hierarchy
keymap("n", "<Leader>ci", "<cmd>Lspsaga incoming_calls<CR>")
keymap("n", "<Leader>co", "<cmd>Lspsaga outgoing_calls<CR>")

-- Floating terminal
keymap({"n", "t"}, "<A-d>", "<cmd>Lspsaga term_toggle<CR>")

Using Lspsaga

Note that the title in the floating window requires Neovim 0.9 or greater. If you are using Neovim 0.8 you won't see a title.

**If you are using Neovim 0.9 and want to disable the title, see Customizing Lspsaga's Appearance

You need not copy all of the options into the setup function. Just set the options that you've changed in the setup function and it will be extended with the default options!

You can find the documentation for Lspsaga in Neovim by using :h lspsaga.

Default options

  preview = {
    lines_above = 0,
    lines_below = 10,
  },
  scroll_preview = {
    scroll_down = "<C-f>",
    scroll_up = "<C-b>",
  },
  request_timeout = 2000,

:Lspsaga lsp_finder

A finder to show the defintion, reference and implementation (only shown when current hovered word is a function, a type, a class, or an interface).

Default options:

  finder = {
    edit = { "o", "<CR>" },
    vsplit = "s",
    split = "i",
    tabe = "t",
    quit = { "q", "<ESC>" },
  },
lsp_finder showcase

:Lspsaga peek_definition

There are two commands, :Lspsaga peek_definition and :Lspsaga goto_definition. The peek_definition command works like the VSCode command of the same name, which shows the target file in an editable floating window.

Default options:

  definition = {
    edit = "<C-c>o",
    vsplit = "<C-c>v",
    split = "<C-c>i",
    tabe = "<C-c>t",
    quit = "q",
    close = "<Esc>",
  }
peek_definition showcase

The steps demonstrated in this showcase are:

  • Pressing gd to run :Lspsaga peek_definition
  • Editing a comment and using :w to save
  • Pressing <C-c>o to jump to the file in the floating window
  • Lspsaga shows a beacon highlight after jumping to the file

:Lspsaga goto_definition

Jumps to the definition of the hovered word and shows a beacon highlight.

:Lspsaga code_action

Default options:

  code_action = {
    num_shortcut = true,
    keys = {
      -- string | table type
      quit = "q",
      exec = "<CR>",
    },
  },
  • num_shortcut - It is true by default so you can quickly run a code action by pressing its corresponding number.
code_action showcase

The steps demonstrated in this showcase are:

  • Pressing ga to run :Lspsaga code_action
  • Pressing j to move within the code action preview window
  • Pressing <Cr> to run the action

:Lspsaga Lightbulb

When there are possible code actions to be taken, a lightbulb icon will be shown.

Default options:

  lightbulb = {
    enable = true,
    enable_in_insert = true,
    sign = true,
    sign_priority = 40,
    virtual_text = true,
  },
lightbulb showcase

:Lspasga hover_doc

You should install the treesitter markdown parser so Lspsaga can use it to render the hover window. You can press the keyboard shortcut for :Lspsaga hover_doc twice to enter the hover window.

hover_docshow case

The steps demonstrated in this showcase are:

  • Pressing K once to run :Lspsaga hover_doc
  • Pressing K again to enter the hover window
  • Pressing q to quit

:Lspsaga diagnostic_jump_next

Jumps to next diagnostic position and show a beacon highlight. Lspsaga will then show the code actions.

Default options:

  diagnostic = {
    show_code_action = true,
    show_source = true,
    jump_num_shortcut = true,
     --1 is max
    max_width = 0.7,
    custom_fix = nil,
    custom_msg = nil,
    keys = {
      exec_action = "o",
      quit = "q",
      go_action = "g"
    },
  },
  • Using go_action, you can quickly jump to line where actions need to be taken in the diagnostics floating window.
  • jump_num_shortcut - The default is true. After jumping, Lspasga will automatically bind code actions to a number. Afterwards, you can press the number to execute the code action. After the floating window is closed, these numbers will no longer be tied to the same code actions.
  • custom_msg string used to custom the diagnostic jump Msg section titile
  • custom_fix string used to custom the diagnostic jump Fix section titile
  • max_width is the max width for diagnostic jump window. percentage

You can also use a filter when using diagnostic jump by using a Lspsaga function. The function takes a table as its argument. It is functionally identical to :h vim.diagnostic.get_next.

-- This will only jump to an error
-- If no error is found, it executes "goto_next"
require("lspsaga.diagnostic"):goto_prev({ severity = vim.diagnostic.severity.ERROR })
diagnostic_jump_next showcase

The steps demonstrated in this showcase are:

  • Pressing [e to jump to the next diagnostic position, which shows the beacon highlight and the code actions in a diagnostic window
  • Pressing the number 2 to execute the code action without needing to enter the floating window
  • If you want to see the code action, you can use <C-w>w to enter the floating window.
  • Press g to go to the action line and see the code action preview.
  • Press o to execute the action.

:Lspsaga show_diagnostics

show_line_diagnostics, show_buf_diagnostics, show_cursor_diagnostics

  • you can use <C-w>w jump into and use <CR> jump to diagnostic position
show_diagnostics showcase

:Lspsaga rename

Uses the current LSP to rename the hovered word.

Default options:

  rename = {
    quit = "<C-c>",
    exec = "<CR>",
    mark = "x",
    confirm = "<CR>",
    in_select = true,
  },
  • mark is used for the ++project argument. It is used to mark the files which you want to rename the hovered word in.
  • confirm - After you have marked the files, press this key to execute the rename.
rename showcase

The steps demonstrated in this showcase are:

  • Pressing gr to run :Lspsaga rename
  • Typing stesdd and then pressing <CR> to execute the rename

The steps demonstrated in this showcase are:

  • Pressing gR to run :Lspsaga rename ++project
  • Pressing x to mark the file
  • Pressing <CR> to execute rename

:Lspsaga outline

Default options:

  outline = {
    win_position = "right",
    win_with = "",
    win_width = 30,
    show_detail = true,
    auto_preview = true,
    auto_refresh = true,
    auto_close = true,
    custom_sort = nil,
    keys = {
      jump = "o",
      expand_collapse = "u",
      quit = "q",
    },
  },
outline showcase

The steps demonstrated in this showcase are:

  • Pressing <Leader>o run :Lspsaga outline
  • Pressing j to move down
  • Pressing o to jump

:Lspsaga incoming_calls

Runs the LSP's callhierarchy/incoming_calls.

Default options:

  callhierarchy = {
    show_detail = false,
    keys = {
      edit = "e",
      vsplit = "s",
      split = "i",
      tabe = "t",
      jump = "o",
      quit = "q",
      expand_collapse = "u",
    },
  },
incoming_calls showcase

:Lspsaga outgoing_calls

Runs the LSP's callhierarchy/outgoing_calls.

outgoing_calls showcase

:Lspsaga symbols in winbar

This requires Neovim version >= 0.8.

Default options:

  symbol_in_winbar = {
    enable = true,
    separator = "",
    hide_keyword = true,
    show_file = true,
    folder_level = 2,
    respect_root = false,
    color_mode = true,
  },
  • hide_keyword - The default value is true. Lspsaga will hide some keywords and temporary variables to make the symbols look cleaner.
  • folder_level only works when show_file is true.
  • respect_root will respect the LSP's root. If this is true, Lspsaga will ignore the folder_level option. If no LSP client is being used, Lspsaga will fall back to using folder level.
  • color_mode - The default value is true. When it is set to false, only icons will have color.
Symbols in winbar

:Lspsaga symbols in a custom winbar/statusline

Lspsaga provides an API that you can use in your custom winbar or statusline.

vim.wo.winbar / vim.wo.stl = require('lspsaga.symbolwinbar'):get_winbar()

:Lspsaga term_toggle

A simple floating terminal.

Toggling the floating terminal

:Lspsaga beacon

after jump from float window there will show beacon to remind you where the cursor is.

  beacon = {
    enable = true,
    frequency = 7,
  },

frequency the blink frequency.

Customizing Lspsaga's Appearance

:Lspsaga UI

Default UI options

  ui = {
    -- Currently, only the round theme exists
    theme = "round",
    -- This option only works in Neovim 0.9
    title = true,
    -- Border type can be single, double, rounded, solid, shadow.
    border = "solid",
    winblend = 0,
    expand = "",
    collapse = "",
    preview = "",
    code_action = "💡",
    diagnostic = "🐞",
    incoming = "",
    outgoing = "",
    hover = '',
    kind = {},
  },

Custom Highlighting

All highlight groups can be found in highlight.lua.

Custom Kind

Modify ui.kind to change the icons of the kinds.

All kinds used in Lspsaga are defined in lspkind.lua. The key in ui.kind is the kind name, and the value can either be a string or a table. If a string is passed, it is setting the icon. If table is passed, it will be passed as { icon, color }.

Backers

Thanks for everything!

@Möller Lukas, @HendrikPetertje, @Bojan Wilytsch and @Burgess Darrion

Donate

Currently, I am in need of some donations. If you'd like to support my work financially, please donate through PayPal. Thanks!

License

Licensed under the MIT license.

Contributors

glepnirgithub-actions[bot]rewhileweilbithtapayne88ckipp01AlienoverXXiaoAleaxoytamago324someoneinjdcooperusercharlie39alex-popov-techadelarsqleoatchinaJint-lzxyyuki-yanoelianivakuznetsssPHSixuga-rosajoeveigaspeed2exeakinshoYangEfeiXmgplaysRacleVRShardUnoqwy

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