REFACTOR: Opencode heavily optimized statusline

nvim/.config/nvim/lua/DarthMooMancer/statusline.lua

@@ -1,203 +1,186 @@
-local has_devicons, devicons = pcall(require, 'nvim-web-devicons')
+local ok, D = pcall(require, 'nvim-web-devicons')
-local uv, api, b = vim.uv or vim.loop, vim.api, vim.b
+local a, u, S = vim.api, vim.uv or vim.loop, vim.diagnostic.severity
-local SEV = vim.diagnostic.severity
+local C = a.nvim_get_current_buf
-
+local R = function()
-local function setup_highlights()
+	vim.cmd.redrawstatus()
-	local bg = api.nvim_get_hl(0, { name = 'StatusLine' }).bg or 'none'
-
-	local function set(name, link, bold)
-		local hl = api.nvim_get_hl(0, { name = link, link = false })
-		api.nvim_set_hl(0, name, { fg = hl.fg, bg = bg, bold = bold or false })
 end
-
+local M = '%#StatusLineMod#%m%*%#StatusLineRO#%r%* %='
-	set('StatusLineFilename', 'Normal', true)
+local FR = { '⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏' }
-	set('StatusLineMod', 'WarningMsg', true)
+local N, SPIN, LOAD = #FR, '%#StatusLspSpinner#', '%* %#StatusLspLoading#'
-	set('StatusLineRO', 'ErrorMsg', true)
+local c, T, JOB, TMR, IDX = {}, {}, nil, nil, 1
-	set('StatusDiagError', 'DiagnosticError', true)
+local function HI()
-	set('StatusDiagWarn', 'DiagnosticWarn', false)
+	local bg = a.nvim_get_hl(0, { name = 'StatusLine' }).bg or 'none'
-	set('StatusDiagHint', 'DiagnosticHint', false)
+	for _, t in ipairs({
-	set('StatusLspSpinner', 'DiagnosticWarn', true)
+		{ 'StatusLineFilename', 'Normal', true },
-	set('StatusLspLoading', 'DiagnosticInfo', false)
+		{ 'StatusLineMod', 'WarningMsg', true },
-	set('StatusLspReady', 'Comment', false)
+		{ 'StatusLineRO', 'ErrorMsg', true },
-end
+		{ 'StatusDiagError', 'DiagnosticError', true },
-
+		{ 'StatusDiagWarn', 'DiagnosticWarn', false },
-api.nvim_create_autocmd({ 'ColorScheme', 'FocusGained', 'VimEnter' }, {
+		{ 'StatusDiagHint', 'DiagnosticHint', false },
-	callback = function()
+		{ 'StatusLspSpinner', 'DiagnosticWarn', true },
-		setup_highlights()
+		{ 'StatusLspLoading', 'DiagnosticInfo', false },
-		vim.cmd('redrawstatus')
+		{ 'StatusLspReady', 'Comment', false },
-	end,
+	}) do
-})
+		local h = a.nvim_get_hl(0, { name = t[2], link = false })
-setup_highlights()
+		a.nvim_set_hl(0, t[1], { fg = h.fg, bg = bg, bold = t[3] })
-
-local function update_file_info(buf)
-	local path = api.nvim_buf_get_name(buf)
-	if path == '' then
-		b[buf].stl_file_info = ' %#StatusLineFilename#[No Name]%*'
-		return
-	end
-
-	local fname = path:match('([^/\\]+)$') or path
-	local icon = ''
-	if has_devicons then
-		local ic, hl = devicons.get_icon(
-			fname,
-			path:match('%.([^./\\]+)$'),
-			{ default = true }
-		)
-		if ic then
-			icon = '%#' .. hl .. '#' .. ic .. ' %*'
 	end
 end
-	b[buf].stl_file_info = ' '
+local function snap(bb)
-		.. icon
+	local p = a.nvim_buf_get_name(bb)
-		.. '%#StatusLineFilename#'
+	local nm = ' %#StatusLineFilename#'
-		.. fname
+	if p == '' then
-		.. '%*'
+		nm = nm .. '[No Name]%*'
-end
-
-local function update_lsp_clients(buf)
-	local clients = vim.lsp.get_clients({ bufnr = buf })
-	if #clients == 0 then
-		b[buf].stl_lsp_ready = ''
-		return
-	end
-
-	local names = {}
-	for i = 1, #clients do
-		names[i] = clients[i].name
-	end
-	b[buf].stl_lsp_ready = '%#StatusLspReady#󰄭 '
-		.. table.concat(names, '/')
-		.. '%* '
-end
-
-local active_tokens = {}
-local spinner_frames =
-	{ '⠋', '⠙', '⠹', '⠸', '⠼', '⠴', '⠦', '⠧', '⠇', '⠏' }
-local current_job, spinner_timer = nil, nil
-
-local function sync_spinner()
-	current_job = nil
-	for _, tokens in pairs(active_tokens) do
-		for _, msg in pairs(tokens) do
-			current_job = msg
-			break
-		end
-		if current_job then
-			break
-		end
-	end
-
-	if current_job and not spinner_timer then
-		spinner_timer = uv.new_timer()
-		spinner_timer:start(
-			0,
-			100,
-			vim.schedule_wrap(function()
-				if current_job then
-					vim.cmd('redrawstatus')
-				elseif spinner_timer then
-					spinner_timer:stop()
-					spinner_timer:close()
-					spinner_timer = nil
-				end
-			end)
-		)
-	elseif not current_job and spinner_timer then
-		spinner_timer:stop()
-		spinner_timer:close()
-		spinner_timer = nil
-		vim.cmd('redrawstatus')
-	end
-end
-
-local group = api.nvim_create_augroup('MinimalStatusline', { clear = true })
-
-api.nvim_create_autocmd({ 'BufEnter', 'BufFilePost' }, {
-	group = group,
-	callback = function(ev)
-		update_file_info(ev.buf)
-		update_lsp_clients(ev.buf)
-	end,
-})
-
-api.nvim_create_autocmd('DiagnosticChanged', {
-	group = group,
-	callback = function(ev)
-		if ev.buf == api.nvim_get_current_buf() then
-			vim.cmd('redrawstatus')
-		end
-	end,
-})
-
-api.nvim_create_autocmd({ 'LspAttach', 'LspDetach' }, {
-	group = group,
-	callback = function(ev)
-		if ev.event == 'LspDetach' then
-			active_tokens[ev.data.client_id] = nil
-			sync_spinner()
-		end
-		update_lsp_clients(ev.buf)
-		vim.cmd('redrawstatus')
-	end,
-})
-
-api.nvim_create_autocmd('LspProgress', {
-	group = group,
-	callback = function(ev)
-		local val = ev.data.params.value
-		if type(val) ~= 'table' then
-			return
-		end
-
-		local client_id = ev.data.client_id
-		local token = ev.data.params.token or 'default'
-		active_tokens[client_id] = active_tokens[client_id] or {}
-
-		if
-			val.kind == 'end'
-			or (val.kind == 'report' and val.percentage == 100)
-		then
-			active_tokens[client_id][token] = nil
 	else
-			local msg = (val.title and val.title ~= '' and val.title)
+		local f = p:match('([^/\\]+)$') or p
-				or val.message
+		if ok then
-				or 'Loading...'
+			local i, hl = D.get_icon(f, p:match('%.([^./\\]+)$'), { default = true })
-			if val.title and val.message and val.message ~= '' then
+			if i then
-				msg = val.title .. ' ' .. val.message
+				nm = nm .. '%#' .. hl .. '#' .. i .. ' %*'
 			end
-			active_tokens[client_id][token] = msg
 		end
-
+		nm = nm .. f .. '%*'
-		sync_spinner()
+	end
-	end,
+	local x = vim.diagnostic.count(bb)
-})
+	local e, w, h = x[S.ERROR] or 0, x[S.WARN] or 0, x[S.HINT] or 0
-
+	local dg = ''
-function MinimalStatusline()
+	if e + w + h > 0 then
-	local cur_buf = api.nvim_get_current_buf()
+		dg = (e > 0 and ('%#StatusDiagError#E' .. e .. '%* ') or '')
-	local vars = b[cur_buf]
-
-	local c = vim.diagnostic.count(cur_buf)
-	local e, w, h = c[SEV.ERROR] or 0, c[SEV.WARN] or 0, c[SEV.HINT] or 0
-	local diags = ''
-	if e > 0 or w > 0 or h > 0 then
-		diags = (e > 0 and ('%#StatusDiagError#E' .. e .. '%* ') or '')
 			.. (w > 0 and ('%#StatusDiagWarn#W' .. w .. '%* ') or '')
 			.. (h > 0 and ('%#StatusDiagHint#H' .. h .. '%* ') or '')
 	end
-
+	local rd, cs = '', vim.lsp.get_clients({ bufnr = bb })
-	local right = current_job
+	if #cs > 0 then
-			and ('%#StatusLspSpinner#' .. spinner_frames[(math.floor(
+		local nm2 = {}
-				uv.now() / 100
+		for i = 1, #cs do
-			) % 10) + 1] .. '%* %#StatusLspLoading#' .. current_job .. '%* ')
+			nm2[i] = cs[i].name
-		or (vars.stl_lsp_ready or '')
-
-	return (vars.stl_file_info or '')
-		.. '%#StatusLineMod#%m%*%#StatusLineRO#%r%* %='
-		.. diags
-		.. '%='
-		.. right
 		end
-
+		rd = '%#StatusLspReady#󰄭 ' .. table.concat(nm2, '/') .. '%* '
-vim.opt.laststatus = 3
+	end
-vim.opt.statusline = '%!v:lua.MinimalStatusline()'
+	return nm .. M .. dg, rd
+end
+local function touch(bb, redraw)
+	local v = c[bb]
+	if v then
+		v.d = true
+	end
+	if redraw then
+		R()
+	end
+end
+local function SYNC()
+	JOB = nil
+	for _, t in pairs(T) do
+		for _, m in pairs(t) do
+			JOB = m
+			break
+		end
+		if JOB then
+			break
+		end
+	end
+	if JOB and not TMR then
+		IDX = math.floor(u.now() / 100) % N + 1
+		TMR = u.new_timer()
+		TMR:start(
+			0,
+			100,
+			vim.schedule_wrap(function()
+				if JOB then
+					IDX = IDX % N + 1
+					R()
+				elseif TMR then
+					TMR:stop()
+					TMR:close()
+					TMR = nil
+				end
+			end)
+		)
+	elseif not JOB and TMR then
+		TMR:stop()
+		TMR:close()
+		TMR = nil
+		R()
+	end
+end
+local G = a.nvim_create_augroup('STL5', { clear = true })
+for _, s in ipairs({
+	{
+		{ 'BufEnter', 'BufFilePost' },
+		function(e)
+			touch(e.buf, true)
+		end,
+	},
+	{
+		'DiagnosticChanged',
+		function(e)
+			touch(e.buf, e.buf == C())
+		end,
+	},
+	{
+		{ 'LspAttach', 'LspDetach' },
+		function(e)
+			if e.event == 'LspDetach' then
+				T[e.data.client_id] = nil
+				SYNC()
+			end
+			touch(e.buf, true)
+		end,
+	},
+	{
+		'LspProgress',
+		function(e)
+			local v = e.data.params.value
+			if type(v) ~= 'table' then
+				return
+			end
+			local id, tk = e.data.client_id, e.data.params.token or 'default'
+			T[id] = T[id] or {}
+			if v.kind == 'end' or (v.kind == 'report' and v.percentage == 100) then
+				T[id][tk] = nil
+			else
+				local m = (v.title and v.title ~= '' and v.title) or v.message or 'Loading...'
+				if v.title and v.message and v.message ~= '' then
+					m = v.title .. ' ' .. v.message
+				end
+				T[id][tk] = m
+			end
+			SYNC()
+		end,
+	},
+	{
+		'BufUnload',
+		function(e)
+			c[e.buf] = nil
+		end,
+	},
+	{
+		'ColorScheme',
+		function()
+			HI()
+			R()
+		end,
+	},
+	{ 'FocusGained', R },
+}) do
+	a.nvim_create_autocmd(s[1], { group = G, callback = s[2] })
+end
+HI()
+local function Status()
+	local bb = C()
+	local v = c[bb]
+	if not v or v.d then
+		if not v then
+			v = {}
+			c[bb] = v
+		end
+		v.h, v.r = snap(bb)
+		v.stl = v.h .. v.r
+		v.d = nil
+	end
+	if JOB then
+		return v.h .. SPIN .. FR[IDX] .. LOAD .. JOB .. '%* '
+	end
+	return v.stl
+end
+_G.Status = Status
+vim.opt.statusline = '%!v:lua.Status()'

nvim/.config/nvim/stylua.toml

@@ -1,5 +1,5 @@
-column_width = 80
+column_width = 120
 line_endings = "Unix"
 indent_type = "Tabs"
-indent_width = 4
+indent_width = 2
 quote_style = "AutoPreferSingle"