refactor: use vim.g config and lazy loading

Replace setup() with vim.g.live_server configuration. Add plugin/ file
with load guard and user commands for proper lazy loading.
This commit is contained in:
Barrett Ruth 2026-02-03 20:13:12 -05:00
parent 58f2e30e02
commit af7255b0a0
2 changed files with 124 additions and 123 deletions

View file

@ -1,143 +1,128 @@
local M = {}
local function log(message, level)
vim.notify(
string.format('live-server.nvim: %s', message),
vim.log.levels[level]
)
end
local initialized = false
local job_cache = {}
local function find_cached_dir(dir)
if not dir then
vim.notify("live-server.nvim: No directory provided to find_cached_dir()", vim.log.levels.ERROR)
return
end
local defaults = {
args = { '--port=5555' },
}
local cur = dir
while not job_cache[cur] do
if cur == '/' or string.match(cur, '^[A-Z]:\\$') then
return
end
cur = vim.fn.fnamemodify(cur, ':h')
local config = vim.deepcopy(defaults)
local function log(message, level)
vim.notify(string.format('live-server.nvim: %s', message), vim.log.levels[level])
end
local function is_windows()
return vim.loop.os_uname().version:match('Windows')
end
local function init()
if initialized then
return true
end
local user_config = vim.g.live_server or {}
config = vim.tbl_deep_extend('force', defaults, user_config)
if not vim.fn.executable('live-server') and not (is_windows() and vim.fn.executable('live-server.cmd')) then
log('live-server is not executable. Ensure the npm module is properly installed', 'ERROR')
return false
end
initialized = true
return true
end
local function find_cached_dir(dir)
if not dir then
return nil
end
local cur = dir
while not job_cache[cur] do
if cur == '/' or cur:match('^[A-Z]:\\$') then
return nil
end
return cur
cur = vim.fn.fnamemodify(cur, ':h')
end
return cur
end
local function is_running(dir)
local cached_dir = find_cached_dir(dir)
return cached_dir and job_cache[cached_dir]
local cached_dir = find_cached_dir(dir)
return cached_dir and job_cache[cached_dir]
end
-- Detect if OS is Windows
local function is_windows()
return vim.loop.os_uname().version:match("Windows")
local function resolve_dir(dir)
if not dir or dir == '' then
dir = '%:p:h'
end
return vim.fn.expand(vim.fn.fnamemodify(vim.fn.expand(dir), ':p'))
end
M.config = {
-- 8080 default is commonly used, here 5555
args = { '--port=5555' },
}
function M.start(dir)
if not init() then
return
end
M.toggle = function(dir)
local running = is_running(dir)
if not running then
M.start(dir)
dir = resolve_dir(dir)
if is_running(dir) then
log('live-server already running', 'INFO')
return
end
local cmd_exe = is_windows() and 'live-server.cmd' or 'live-server'
local cmd = { cmd_exe, dir }
vim.list_extend(cmd, config.args)
local job_id = vim.fn.jobstart(cmd, {
on_stderr = function(_, data)
if not data or data[1] == '' then
return
end
log(data[1]:match('.-m(.-)\27') or data[1], 'ERROR')
end,
on_exit = function(_, exit_code)
job_cache[dir] = nil
if exit_code == 143 then
return
end
log(string.format('stopped with code %s', exit_code), 'INFO')
end,
})
local port = 'unknown'
for _, arg in ipairs(config.args) do
local p = arg:match('%-%-port=(%d+)')
if p then
port = p
break
end
end
log(string.format('live-server started on 127.0.0.1:%s', port), 'INFO')
job_cache[dir] = job_id
end
function M.stop(dir)
dir = resolve_dir(dir)
local cached_dir = find_cached_dir(dir)
if cached_dir and job_cache[cached_dir] then
vim.fn.jobstop(job_cache[cached_dir])
job_cache[cached_dir] = nil
log('live-server stopped', 'INFO')
end
end
function M.toggle(dir)
dir = resolve_dir(dir)
if is_running(dir) then
M.stop(dir)
end
M.setup = function(user_config)
M.config = vim.tbl_deep_extend('force', M.config, user_config or {})
if not vim.fn.executable('live-server') and not (is_windows() and vim.fn.executable('live-server.cmd')) then
log(
'live-server is not executable. Ensure the npm module is properly installed',
vim.log.levels.ERROR
)
return
end
local function find_dir(args)
local dir = args ~= '' and args or '%:p:h'
return vim.fn.expand(vim.fn.fnamemodify(vim.fn.expand(dir), ':p'))
end
vim.api.nvim_create_user_command('LiveServerStart', function(opts)
M.start(find_dir(opts.args))
end, { nargs = '?' })
vim.api.nvim_create_user_command('LiveServerStop', function(opts)
M.stop(find_dir(opts.args))
end, { nargs = '?' })
vim.api.nvim_create_user_command('LiveServerToggle', function(opts)
M.toggle(find_dir(opts.args))
end, { nargs = '?' })
end
M.start = function(dir)
local running = is_running(dir)
if running then
log('live-server already running', 'INFO')
return
end
local cmd_exe = 'live-server'
if is_windows() then
cmd_exe = 'live-server.cmd'
end
local cmd = { cmd_exe, dir }
vim.list_extend(cmd, M.config.args)
local job_id = vim.fn.jobstart(cmd, {
on_stderr = function(_, data)
if not data or data[1] == '' then
return
end
-- Remove color from error if present
log(data[1]:match('.-m(.-)\27') or data[1], 'ERROR')
end,
on_exit = function(_, exit_code)
job_cache[dir] = nil
-- instance killed with SIGTERM
if exit_code == 143 then
return
end
log(string.format('stopped with code %s', exit_code), 'INFO')
end,
})
-- Extract port from args
local port = 'unknown'
for _, arg in ipairs(M.config.args) do
local p = arg:match('%-%-port=(%d+)')
if p then
port = p
break
end
end
log(string.format('live-server started on 127.0.0.1:%s', port), 'INFO')
job_cache[dir] = job_id
end
M.stop = function(dir)
local running = is_running(dir)
if running then
local cached_dir = find_cached_dir(dir)
if cached_dir then
vim.fn.jobstop(job_cache[cached_dir])
job_cache[cached_dir] = nil
log('live-server stopped', 'INFO')
end
end
else
M.start(dir)
end
end
return M