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local configs = require 'lspconfig.configs'
local windows = require 'lspconfig.ui.windows'
local util = require 'lspconfig.util'
local error_messages = {
cmd_not_found = 'Unable to find executable. Please check your path and ensure the server is installed',
no_filetype_defined = 'No filetypes defined, Please define filetypes in setup()',
}
local function trim_blankspace(cmd)
local trimmed_cmd = {}
for _, str in pairs(cmd) do
table.insert(trimmed_cmd, str:match '^%s*(.*)')
end
return trimmed_cmd
end
local function indent_lines(lines, offset)
return vim.tbl_map(function(val)
return offset .. val
end, lines)
end
local function remove_newlines(cmd)
cmd = trim_blankspace(cmd)
cmd = table.concat(cmd, ' ')
cmd = vim.split(cmd, '\n')
cmd = trim_blankspace(cmd)
cmd = table.concat(cmd, ' ')
return cmd
end
local function make_config_info(config)
local config_info = {}
config_info.name = config.name
if config.cmd then
config_info.cmd = remove_newlines(config.cmd)
if vim.fn.executable(config.cmd[1]) == 1 then
config_info.cmd_is_executable = 'true'
else
config_info.cmd_is_executable = error_messages.cmd_not_found
end
else
config_info.cmd = 'cmd not defined'
config_info.cmd_is_executable = 'NA'
end
local buffer_dir = vim.fn.expand '%:p:h'
config_info.root_dir = config.get_root_dir(buffer_dir) or 'NA'
config_info.autostart = (config.autostart and 'true') or 'false'
config_info.handlers = table.concat(vim.tbl_keys(config.handlers), ', ')
config_info.filetypes = table.concat(config.filetypes or {}, ', ')
local lines = {
'Config: ' .. config_info.name,
}
local info_lines = {
'filetypes: ' .. config_info.filetypes,
'root directory: ' .. config_info.root_dir,
'cmd: ' .. config_info.cmd,
'cmd is executable: ' .. config_info.cmd_is_executable,
'autostart: ' .. config_info.autostart,
'custom handlers: ' .. config_info.handlers,
}
vim.list_extend(lines, indent_lines(info_lines, '\t'))
return lines
end
local function make_client_info(client)
local client_info = {}
client_info.cmd = remove_newlines(client.config.cmd)
if client.workspaceFolders then
client_info.root_dir = client.workspaceFolders[1].name
else
client_info.root_dir = 'Running in single file mode.'
end
client_info.filetypes = table.concat(client.config.filetypes or {}, ', ')
client_info.autostart = (client.config.autostart and 'true') or 'false'
client_info.attached_buffers_list = table.concat(vim.lsp.get_buffers_by_client_id(client.id), ', ')
local lines = {
'',
'Client: '
.. client.name
.. ' (id: '
.. tostring(client.id)
.. ', pid: '
.. tostring(client.rpc.pid)
.. ', bufnr: ['
.. client_info.attached_buffers_list
.. '])',
}
local info_lines = {
'filetypes: ' .. client_info.filetypes,
'autostart: ' .. client_info.autostart,
'root directory: ' .. client_info.root_dir,
'cmd: ' .. client_info.cmd,
}
if client.config.lspinfo then
local server_specific_info = client.config.lspinfo(client.config)
info_lines = vim.list_extend(info_lines, server_specific_info)
end
vim.list_extend(lines, indent_lines(info_lines, '\t'))
return lines
end
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 win_info = windows.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 buf_client_ids = {}
for _, client in pairs(buf_clients) do
table.insert(buf_client_ids, client.id)
end
local other_active_clients = {}
local client_names = {}
for _, client in pairs(clients) do
if not vim.tbl_contains(buf_client_ids, client.id) then
table.insert(other_active_clients, client)
end
table.insert(client_names, client.name)
end
local header = {
'',
'Language client log: ' .. (vim.lsp.get_log_path()),
'Detected filetype: ' .. buffer_filetype,
}
vim.list_extend(buf_lines, header)
local buffer_clients_header = {
'',
tostring(#vim.tbl_keys(buf_clients)) .. ' client(s) attached to this buffer: ',
}
vim.list_extend(buf_lines, buffer_clients_header)
for _, client in pairs(buf_clients) do
local client_info = make_client_info(client)
vim.list_extend(buf_lines, client_info)
end
local other_active_section_header = {
'',
tostring(#other_active_clients) .. ' active client(s) not attached to this buffer: ',
}
if not vim.tbl_isempty(other_active_clients) then
vim.list_extend(buf_lines, other_active_section_header)
end
for _, client in pairs(other_active_clients) do
local client_info = make_client_info(client)
vim.list_extend(buf_lines, client_info)
end
local other_matching_configs_header = {
'',
'Other clients that match the filetype: ' .. buffer_filetype,
'',
}
local other_matching_configs = util.get_other_matching_providers(buffer_filetype)
if not vim.tbl_isempty(other_matching_configs) then
vim.list_extend(buf_lines, other_matching_configs_header)
for _, config in pairs(other_matching_configs) do
vim.list_extend(buf_lines, make_config_info(config))
end
end
local matching_config_header = {
'',
'Configured servers list: ' .. table.concat(vim.tbl_keys(configs), ', '),
}
vim.list_extend(buf_lines, matching_config_header)
local fmt_buf_lines = indent_lines(buf_lines, ' ')
fmt_buf_lines = vim.lsp.util._trim(fmt_buf_lines, {})
vim.api.nvim_buf_set_lines(bufnr, 0, -1, true, fmt_buf_lines)
vim.api.nvim_buf_set_option(bufnr, 'modifiable', false)
vim.api.nvim_buf_set_option(bufnr, 'filetype', 'lspinfo')
vim.api.nvim_buf_set_keymap(bufnr, 'n', '<esc>', '<cmd>bd<CR>', { noremap = true })
vim.api.nvim_command(
string.format('autocmd BufHidden,BufLeave <buffer> ++once lua pcall(vim.api.nvim_win_close, %d, true)', win_id)
)
vim.fn.matchadd(
'Error',
error_messages.no_filetype_defined .. '.\\|' .. 'cmd not defined\\|' .. error_messages.cmd_not_found
)
vim.cmd 'let m=matchadd("string", "true")'
vim.cmd 'let m=matchadd("error", "false")'
for _, config in pairs(configs) do
vim.fn.matchadd('Title', '\\%(Client\\|Config\\):.*\\zs' .. config.name .. '\\ze')
vim.fn.matchadd('Visual', 'list:.*\\zs' .. config.name .. '\\ze')
if config.filetypes then
for _, ft in pairs(config.filetypes) do
vim.fn.matchadd('Type', '\\%(filetypes\\|filetype\\):.*\\zs' .. ft .. '\\ze')
end
end
end
end
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