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local M = {}
local tbl = require "lvim.utils.table"
function M.is_client_active(name)
local clients = vim.lsp.get_active_clients()
return tbl.find_first(clients, function(client)
return client.name == name
end)
end
function M.get_active_clients_by_ft(filetype)
local matches = {}
local clients = vim.lsp.get_active_clients()
for _, client in pairs(clients) do
local supported_filetypes = client.config.filetypes or {}
if client.name ~= "null-ls" and vim.tbl_contains(supported_filetypes, filetype) then
table.insert(matches, client)
end
end
return matches
end
function M.get_client_capabilities(client_id)
local client
if not client_id then
local buf_clients = vim.lsp.buf_get_clients()
for _, buf_client in pairs(buf_clients) do
if buf_client.name ~= "null-ls" then
client = buf_client
break
end
end
else
client = vim.lsp.get_client_by_id(tonumber(client_id))
end
if not client then
error "Unable to determine client_id"
return
end
local enabled_caps = {}
for capability, status in pairs(client.server_capabilities or client.resolved_capabilities) do
if status == true then
table.insert(enabled_caps, capability)
end
end
return enabled_caps
end
---Get supported filetypes per server
---@param server_name string can be any server supported by nvim-lsp-installer
---@return string[] supported filestypes as a list of strings
function M.get_supported_filetypes(server_name)
local status_ok, config = pcall(require, ("lspconfig.server_configurations.%s"):format(server_name))
if not status_ok then
return {}
end
return config.default_config.filetypes or {}
end
---Get supported servers per filetype
---@param filter { filetype: string | string[] }?: (optional) Used to filter the list of server names.
---@return string[] list of names of supported servers
function M.get_supported_servers(filter)
local _, supported_servers = pcall(function()
return require("mason-lspconfig").get_available_servers(filter)
end)
return supported_servers or {}
end
---Get all supported filetypes by nvim-lsp-installer
---@return string[] supported filestypes as a list of strings
function M.get_all_supported_filetypes()
local status_ok, filetype_server_map = pcall(require, "mason-lspconfig.mappings.filetype")
if not status_ok then
return {}
end
return vim.tbl_keys(filetype_server_map or {})
end
function M.setup_document_highlight(client, bufnr)
local status_ok, highlight_supported = pcall(function()
return client.supports_method "textDocument/documentHighlight"
end)
if not status_ok or not highlight_supported then
return
end
local group = "lsp_document_highlight"
local hl_events = { "CursorHold", "CursorHoldI" }
local ok, hl_autocmds = pcall(vim.api.nvim_get_autocmds, {
group = group,
buffer = bufnr,
event = hl_events,
})
if ok and #hl_autocmds > 0 then
return
end
vim.api.nvim_create_augroup(group, { clear = false })
vim.api.nvim_create_autocmd(hl_events, {
group = group,
buffer = bufnr,
callback = vim.lsp.buf.document_highlight,
})
vim.api.nvim_create_autocmd("CursorMoved", {
group = group,
buffer = bufnr,
callback = vim.lsp.buf.clear_references,
})
end
function M.setup_codelens_refresh(client, bufnr)
local status_ok, codelens_supported = pcall(function()
return client.supports_method "textDocument/codeLens"
end)
if not status_ok or not codelens_supported then
return
end
local group = "lsp_code_lens_refresh"
local cl_events = { "BufEnter", "InsertLeave" }
local ok, cl_autocmds = pcall(vim.api.nvim_get_autocmds, {
group = group,
buffer = bufnr,
event = cl_events,
})
if ok and #cl_autocmds > 0 then
return
end
vim.api.nvim_create_augroup(group, { clear = false })
vim.api.nvim_create_autocmd(cl_events, {
group = group,
buffer = bufnr,
callback = vim.lsp.codelens.refresh,
})
end
---filter passed to vim.lsp.buf.format
---always selects null-ls if it's available and caches the value per buffer
---@param client table client attached to a buffer
---@return boolean if client matches
function M.format_filter(client)
local filetype = vim.bo.filetype
local n = require "null-ls"
local s = require "null-ls.sources"
local method = n.methods.FORMATTING
local avalable_formatters = s.get_available(filetype, method)
if #avalable_formatters > 0 then
return client.name == "null-ls"
elseif client.supports_method "textDocument/formatting" then
return true
else
return false
end
end
---Provide vim.lsp.buf.format for nvim <0.8
---@param opts table
function M.format(opts)
opts = opts or {}
opts.filter = opts.filter or M.format_filter
if vim.lsp.buf.format then
return vim.lsp.buf.format(opts)
end
local bufnr = opts.bufnr or vim.api.nvim_get_current_buf()
---@type table|nil
local clients = vim.lsp.get_active_clients {
id = opts.id,
bufnr = bufnr,
name = opts.name,
}
if opts.filter then
clients = vim.tbl_filter(opts.filter, clients)
end
clients = vim.tbl_filter(function(client)
return client.supports_method "textDocument/formatting"
end, clients)
if #clients == 0 then
vim.notify_once "[LSP] Format request failed, no matching language servers."
end
local timeout_ms = opts.timeout_ms or 1000
for _, client in pairs(clients) do
local params = vim.lsp.util.make_formatting_params(opts.formatting_options)
local result, err = client.request_sync("textDocument/formatting", params, timeout_ms, bufnr)
if result and result.result then
vim.lsp.util.apply_text_edits(result.result, bufnr, client.offset_encoding)
elseif err then
vim.notify(string.format("[LSP][%s] %s", client.name, err), vim.log.levels.WARN)
end
end
end
return M
|
