feat(tabline): Added current bufname support for tabline

Author: OXY2DEV

lua/bars/components/tabline.lua

@@ -86,6 +86,7 @@ tlC.tabs = function (config)
 	end
 
 	local wrapped = false;
+	local rendered_paths = {};
 
 	for t = from, from + (max - 1), 1 do
 		local tab_index = wrapped_index(#tabs, t);
@@ -137,6 +138,7 @@ tlC.tabs = function (config)
 			utils.create_segmant(tab_config.padding_left, tab_config.padding_left_hl or tab_config.hl),
 
 			utils.create_segmant(tab_config.icon, tab_config.icon_hl),
+			utils.create_segmant(tab, tab_config.hl)
 		});
 
 		if type(tab_config.win_count) == "string" then
@@ -145,16 +147,42 @@ tlC.tabs = function (config)
 			_o = table.concat({
 				_o,
 
-				utils.create_segmant(tab, tab_config.hl),
+				utils.create_segmant(tab_config.divider, tab_config.divider_hl),
 				utils.create_segmant(
 					string.format(tab_config.win_count, #wins),
 					tab_config.win_count_hl
 				),
 			});
-		else
+		end
+
+		if type(tab_config.bufname) == "string" then
+			---@type integer
+			local winnr = vim.fn.tabpagewinnr(tab);
+			local winid = vim.fn.win_getid(winnr);
+
+			local bufname = vim.api.nvim_buf_get_name(vim.api.nvim_win_get_buf(winid))
+			local path;
+
+			if bufname == "" then
+				path = "No name";
+			else
+				path = utils.truncate_path(
+					vim.fn.fnamemodify(bufname, ":~"),
+					{
+						existing_paths = rendered_paths,
+					}
+				);
+				table.insert(rendered_paths, path);
+			end
+
 			_o = table.concat({
 				_o,
-				utils.create_segmant(tab, tab_config.hl)
+
+				utils.create_segmant(tab_config.divider, tab_config.divider_hl),
+				utils.create_segmant(
+					string.format(tab_config.bufname, path),
+					tab_config.bufname_hl
+				),
 			});
 		end
 

lua/bars/tabline.lua

@@ -1,5 +1,4 @@
 local tabline = {}
-local utils = require("bars.utils");
 local components = require("bars.components.tabline");
 
 ---@class tabline.config
@@ -38,9 +37,13 @@ tabline.config = {
 					padding_left = " ",
 					padding_right = " ",
 
-					win_count = " ┃ 󰨝 %d",
+					divider = " ┃ ",
+
+					win_count = "󰨝 %d",
 					win_count_hl = nil,
 
+					-- bufname = "󰳽 %s",
+
 					icon = "󰛺 ",
 
 					hl = "Color4R"
@@ -49,8 +52,12 @@ tabline.config = {
 					padding_left = " ",
 					padding_right = " ",
 
+					divider = " | ",
+
 					icon = "󰛻 ",
 
+					-- bufname = "󰳽 %s",
+
 					hl = "Color0B"
 				}
 			},

lua/bars/utils.lua

@@ -159,4 +159,72 @@ utils.create_to_buf = function (buffer)
 	end
 end
 
+--- Component-style path truncation.
+---@param path string
+---@param opts table
+---@return string
+utils.truncate_path = function (path, opts)
+	local default_opts = {
+		existing_paths = {},
+		raw_segmants = {},
+		rewrite_segmants = {},
+
+		length = 1
+	};
+
+	local function match (text)
+		local keys = vim.tbl_keys(opts.rewrite_segmants);
+		table.sort(keys);
+
+		for _, k in ipairs(keys) do
+			if string.match(text, k) ~= nil then
+				return opts.rewrite_segmants[k];
+			end
+		end
+	end
+
+	path = path or "";
+
+	if type(opts) == "table" then
+		opts = vim.tbl_deep_extend("force", default_opts, opts);
+	else
+		opts = default_opts;
+	end
+
+	--- Break the path into parts.
+	---@type string[]
+	local path_parts = vim.split(path, "/", { trimempty = true });
+	local _o;
+
+	while _o == nil or vim.tbl_contains(opts.existing_paths, _o) do
+		---@type string
+		local part = table.remove(path_parts);
+		local rewrite = match(part);
+
+		if rewrite then
+			local is_callable, rename = pcall(rewrite, part);
+
+			if is_callable == true and type(rename) == "string" then
+				part = rename;
+			elseif type(rewrite) == "string" then
+				part = rewrite;
+			end
+		elseif _o ~= nil and vim.list_contains(opts.raw_segmants, part) == false then
+			if string.match(part, "^%.") then
+				part = vim.fn.strcharpart(part, 0, opts.length + 1);
+			else
+				part = vim.fn.strcharpart(part, 0, opts.length);
+			end
+		end
+
+		_o = table.concat({
+			part,
+			_o ~= nil and "/" or "",
+			_o or ""
+		})
+	end
+
+	return _o;
+end
+
 return utils;

lua/definitions/tabline.lua

@@ -93,6 +93,11 @@
 --- Highlight group for window count.
 ---@field win_count_hl? string
 ---
+--- Text to use between the bufname &
+--- window count.
+---@field divider? string
+---@field divider_hl? string
+---
 ---@field corner_left? string
 ---@field padding_left? string
 ---@field icon? string