100 lines
2.9 KiB
Lua
100 lines
2.9 KiB
Lua
local M = {}
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function M.safe_require(name)
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local ok, mod = pcall(require, name)
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if ok then return mod end
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return nil
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end
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-- Number of parent directories to show in full in the tabline
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-- The rest will be shortened according to tabline_shorten_length
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-- Example: with full_parents = 1, /path/to/my/project/src/file.txt becomes pat/to/my/project/src/file.txt
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-- Example: with full_parents = 2, it becomes pat/to/my/project/src/file.txt
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M.tabline_full_parents = 1
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-- Number of characters to show for shortened directory names in the tabline
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-- Example: with shorten_length = 3, /path/to/my becomes pat/to/my
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-- Example: with shorten_length = 1, /path/to/my becomes p/t/m
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M.tabline_shorten_length = 3
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-- Custom tabline function
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-- Shows configurable number of full parent directories, shortens the rest
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function M.custom_tabline()
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local tabline = ''
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local num_tabs = vim.fn.tabpagenr('$')
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for i = 1, num_tabs do
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local buflist = vim.fn.tabpagebuflist(i)
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local winnr = vim.fn.tabpagewinnr(i)
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local bufnr = buflist[winnr]
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local bufname = vim.fn.bufname(bufnr)
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local bufmodified = vim.fn.getbufvar(bufnr, "&modified")
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-- Highlight for the tab
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if i == vim.fn.tabpagenr() then
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tabline = tabline .. '%#TabLineSel#'
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else
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tabline = tabline .. '%#TabLine#'
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end
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-- Tab number
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tabline = tabline .. ' ' .. i .. ' '
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-- Format the filename with smart path shortening
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local filename
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if bufname == '' then
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filename = '[No Name]'
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else
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-- Get the full path relative to cwd if possible
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local path = vim.fn.fnamemodify(bufname, ':~:.')
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-- Split path into components
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local parts = vim.split(path, '/', { plain = true })
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if #parts > M.tabline_full_parents + 1 then
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-- We have enough parts to do smart shortening
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local result = {}
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-- Shorten the leading directories (all but the last full_parents + filename)
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local num_to_shorten = #parts - M.tabline_full_parents - 1
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for j = 1, num_to_shorten do
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table.insert(result, parts[j]:sub(1, M.tabline_shorten_length))
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end
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-- Add the full parent directories
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for j = num_to_shorten + 1, #parts - 1 do
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table.insert(result, parts[j])
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end
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-- Add the filename
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table.insert(result, parts[#parts])
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filename = table.concat(result, '/')
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else
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-- Path is short enough, just use it as-is
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filename = path
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end
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end
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-- Add modified flag
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if bufmodified == 1 then
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filename = filename .. ' [+]'
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end
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tabline = tabline .. filename .. ' '
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end
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-- Fill the rest with TabLineFill
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tabline = tabline .. '%#TabLineFill#%T'
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-- Right-align: show tab page count if more than one tab
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if num_tabs > 1 then
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tabline = tabline .. '%=%#TabLine# ' .. num_tabs .. ' tabs '
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end
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return tabline
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end
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return M
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