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local configs = require "lspconfig/configs"
local lspui = require "lspconfig/_lspui"
return function()
-- These options need to be cached before switching to the floating
-- buffer.
local buf_clients = vim.lsp.buf_get_clients()
local clients = vim.lsp.get_active_clients()
local buffer_filetype = vim.bo.filetype
local buffer_dir = vim.fn.expand "%:p:h"
local win_info = lspui.percentage_range_window(0.8, 0.7)
local bufnr, win_id = win_info.bufnr, win_info.win_id
local buf_lines = {}
local buf_client_names = {}
for _, client in pairs(buf_clients) do
table.insert(buf_client_names, client.name)
end
local header = {
"Configured servers: " .. table.concat(vim.tbl_keys(configs), ", "),
"Neovim logs at: " .. (vim.lsp.get_log_path()),
"",
tostring(#vim.tbl_keys(buf_clients)) .. " client(s) attached to this buffer: " .. table.concat(
buf_client_names,
", "
),
}
vim.list_extend(buf_lines, header)
local function trim_whitespace(cmd)
local trimmed_cmd = {}
for _, str in pairs(cmd) do
table.insert(trimmed_cmd, str:match "^%s*(.*)")
end
return trimmed_cmd
end
local function remove_newlines(cmd)
cmd = trim_whitespace(cmd)
cmd = table.concat(cmd, " ")
cmd = vim.split(cmd, "\n")
cmd = trim_whitespace(cmd)
cmd = table.concat(cmd, " ")
return cmd
end
local indent = " "
local function make_client_info(client)
local server_specific_info = ""
if client.config.lspinfo then
server_specific_info = client.config.lspinfo(client.config)
end
return {
"",
indent .. "Client: " .. client.name .. " (id " .. tostring(client.id) .. ")",
indent .. "\troot: " .. client.workspaceFolders[1].name,
indent .. "\tfiletypes: " .. table.concat(client.config.filetypes or {}, ", "),
indent .. "\tcmd: " .. remove_newlines(client.config.cmd),
indent .. "\t" .. server_specific_info,
"",
}
end
for _, client in pairs(buf_clients) do
local client_info = make_client_info(client)
vim.list_extend(buf_lines, client_info)
end
local active_section_header = {
"",
tostring(#clients) .. " active client(s): ",
}
vim.list_extend(buf_lines, active_section_header)
for _, client in pairs(clients) do
local client_info = make_client_info(client)
vim.list_extend(buf_lines, client_info)
end
local matching_config_header = {
"",
"Clients that match the filetype " .. buffer_filetype .. ":",
}
local cmd_not_found_msg = "False. Please check your path and ensure the server is installed"
vim.list_extend(buf_lines, matching_config_header)
for _, config in pairs(configs) do
local cmd_is_executable, cmd
if config.cmd then
cmd = remove_newlines(config.cmd)
if vim.fn.executable(config.cmd[1]) == 1 then
cmd_is_executable = "True"
else
cmd_is_executable = cmd_not_found_msg
end
else
cmd = "cmd not defined"
cmd_is_executable = cmd
end
if config.filetypes then
for _, filetype_match in pairs(config.filetypes) do
if buffer_filetype == filetype_match then
local matching_config_info = {
indent .. "",
indent .. "Config: " .. config.name,
indent .. "\tcmd: " .. cmd,
indent .. "\tcmd is executable: " .. cmd_is_executable,
indent .. "\tidentified root: " .. (config.get_root_dir(buffer_dir) or "None"),
indent .. "\tcustom handlers: " .. table.concat(vim.tbl_keys(config.handlers), ", "),
}
vim.list_extend(buf_lines, matching_config_info)
end
end
else
local matching_config_info = {
"",
"Config: " .. config.name,
"\tfiletype: " .. "No filetypes defined, please define filetypes in setup().",
}
vim.list_extend(buf_lines, matching_config_info)
end
end
buf_lines = vim.lsp.util._trim(buf_lines, {})
vim.api.nvim_buf_set_lines(bufnr, 0, -1, true, buf_lines)
vim.api.nvim_buf_set_option(bufnr, "modifiable", false)
vim.api.nvim_buf_set_option(bufnr, "filetype", "lspinfo")
local configs_pattern = "\\%(" .. table.concat(vim.tbl_keys(configs), "\\|") .. "\\)"
vim.cmd("syntax match Title /\\%(Client\\|Config\\):.*\\zs" .. configs_pattern .. "/")
vim.cmd("syntax match Identifier /filetypes:.*\\zs\\<" .. buffer_filetype .. "\\>/")
vim.fn.matchadd(
"Error",
"No filetypes defined, please define filetypes in setup().\\|" .. "cmd not defined\\|" .. cmd_not_found_msg
)
vim.api.nvim_buf_set_keymap(bufnr, "n", "<esc>", "<cmd>bd<CR>", { noremap = true })
vim.lsp.util.close_preview_autocmd({ "BufHidden", "BufLeave" }, win_id)
end
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