lspsaga.nvim

A light-weight lsp plugin based on neovim built-in lsp with highly a performant UI.

Install

• vim-plug

Plug 'neovim/nvim-lspconfig'
Plug 'glepnir/lspsaga.nvim'

Usage

Lspsaga support use command Lspsaga with completion or use lua function

local saga = require 'lspsaga'

-- add your config value here
-- default value
-- use_saga_diagnostic_sign = true
-- error_sign = '',
-- warn_sign = '',
-- hint_sign = '',
-- infor_sign = '',
-- dianostic_header_icon = '   ',
-- code_action_icon = ' ',
-- code_action_prompt = {
--   enable = true,
--   sign = true,
--   sign_priority = 20,
--   virtual_text = true,
-- },
-- finder_definition_icon = '  ',
-- finder_reference_icon = '  ',
-- max_preview_lines = 10, -- preview lines of lsp_finder and definition preview
-- finder_action_keys = {
--   open = 'o', vsplit = 's',split = 'i',quit = 'q',scroll_down = '<C-f>', scroll_up = '<C-b>' -- quit can be a table
-- },
-- code_action_keys = {
--   quit = 'q',exec = '<CR>'
-- },
-- rename_action_keys = {
--   quit = '<C-c>',exec = '<CR>'  -- quit can be a table
-- },
-- definition_preview_icon = '  '
-- "single" "double" "round" "plus"
-- border_style = "single"
-- rename_prompt_prefix = '➤',
-- if you don't use nvim-lspconfig you must pass your server name and
-- the related filetypes into this table
-- like server_filetype_map = {metals = {'sbt', 'scala'}}
-- server_filetype_map = {}

saga.init_lsp_saga {
  your custom option here
}

or --use default config
saga.init_lsp_saga()

Async Lsp Finder

-- lsp provider to find the cursor word definition and reference
nnoremap <silent> gh <cmd>lua require'lspsaga.provider'.lsp_finder()<CR>
-- or use command LspSagaFinder
nnoremap <silent> gh :Lspsaga lsp_finder<CR>

Code Action

-- code action
nnoremap <silent><leader>ca <cmd>lua require('lspsaga.codeaction').code_action()<CR>
vnoremap <silent><leader>ca :<C-U>lua require('lspsaga.codeaction').range_code_action()<CR>
-- or use command
nnoremap <silent><leader>ca :Lspsaga code_action<CR>
vnoremap <silent><leader>ca :<C-U>Lspsaga range_code_action<CR>

• code action auto prompt

Hover Doc

-- show hover doc
nnoremap <silent> K <cmd>lua require('lspsaga.hover').render_hover_doc()<CR>
-- or use command
nnoremap <silent>K :Lspsaga hover_doc<CR>

-- scroll down hover doc or scroll in definition preview
nnoremap <silent> <C-f> <cmd>lua require('lspsaga.action').smart_scroll_with_saga(1)<CR>
-- scroll up hover doc
nnoremap <silent> <C-b> <cmd>lua require('lspsaga.action').smart_scroll_with_saga(-1)<CR>

SignatureHelp

-- show signature help
nnoremap <silent> gs <cmd>lua require('lspsaga.signaturehelp').signature_help()<CR>
-- or command
nnoremap <silent> gs :Lspsaga signature_help<CR>

and you also can use smart_scroll_with_saga to scroll in signature help win

Rename

-- rename
nnoremap <silent>gr <cmd>lua require('lspsaga.rename').rename()<CR>
-- or command
nnoremap <silent>gr :Lspsaga rename<CR>
-- close rename win use <C-c> in insert mode or `q` in noremal mode or `:q`

Preview Definition

-- preview definition
nnoremap <silent> gd <cmd>lua require'lspsaga.provider'.preview_definition()<CR>
-- or use command
nnoremap <silent> gd :Lspsaga preview_definition<CR>

can use smart_scroll_with_saga to scroll

Jump Diagnostic and Show Diagnostics

-- show
nnoremap <silent><leader>cd <cmd>lua
require'lspsaga.diagnostic'.show_line_diagnostics()<CR>

nnoremap <silent> <leader>cd :Lspsaga show_line_diagnostics<CR>
-- only show diagnostic if cursor is over the area
nnoremap <silent><leader>cc <cmd>lua
require'lspsaga.diagnostic'.show_cursor_diagnostics()<CR>

-- jump diagnostic
nnoremap <silent> [e <cmd>lua require'lspsaga.diagnostic'.lsp_jump_diagnostic_prev()<CR>
nnoremap <silent> ]e <cmd>lua require'lspsaga.diagnostic'.lsp_jump_diagnostic_next()<CR>
-- or use command
nnoremap <silent> [e :Lspsaga diagnostic_jump_next<CR>
nnoremap <silent> ]e :Lspsaga diagnostic_jump_prev<CR>

Float Terminal

-- float terminal also you can pass the cli command in open_float_terminal function
nnoremap <silent> <A-d> <cmd>lua require('lspsaga.floaterm').open_float_terminal()<CR> -- or open_float_terminal('lazygit')<CR>
tnoremap <silent> <A-d> <C-\><C-n>:lua require('lspsaga.floaterm').close_float_terminal()<CR>
-- or use command
nnoremap <silent> <A-d> :Lspsaga open_floaterm<CR>
tnoremap <silent> <A-d> <C-\><C-n>:Lspsaga close_floaterm<CR>

Customize Appearance

Colors

Colors can be simply changed by overwriting the default highlights groups LspSaga is using.

highlight link LspSagaFinderSelection Search
" or
highlight link LspSagaFinderSelection guifg='#ff0000' guibg='#00ff00' gui='bold'

The available highlight groups are:

Group Name	Description
LspSagaFinderSelection	Currently active entry in the finder window that gets previewed.
LspFloatWinNormal
LspFloatWinBorder
LspSagaBorderTitle
TargetWord
ReferencesCount
DefinitionCount
TargetFileName
DefinitionIcon
ReferencesIcon
ProviderTruncateLine
SagaShadow
LspSagaFinderSelection
DiagnosticTruncateLine
DiagnosticError
DiagnosticWarning
DiagnosticInformation
DiagnosticHint
DefinitionPreviewTitle
LspSagaShTruncateLine
LspSagaDocTruncateLine
LineDiagTuncateLine
LspSagaCodeActionTitle
LspSagaCodeActionTruncateLine
LspSagaCodeActionContent
LspSagaRenamePromptPrefix
LspSagaRenameBorder
LspSagaHoverBorder
LspSagaSignatureHelpBorder
LspSagaCodeActionBorder
LspSagaAutoPreview
LspSagaDefPreviewBorder
LspLinesDiagBorder

License

MIT