mirror of
https://github.com/tiyn/tidy.nvim.git
synced 2025-07-12 07:57:49 +02:00
3d6f0c7d9f
• problem: attempt to index a nil value err
solution: check for opts table before attempting to check if
opts table contains anything else
Should be considered a temporary fix. Validating the incoming
options table should be its own functionality
61 lines
1.5 KiB
Lua
61 lines
1.5 KiB
Lua
local M = {}
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local function is_excluded_ft(opts)
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if not opts or not opts.filetype_exclude then
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return false
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end
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local ft = vim.api.nvim_buf_get_option(0, "filetype")
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for _, entry in ipairs(opts.filetype_exclude) do
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if entry == ft then
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return true
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end
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end
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return false
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end
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local function reset_cursor_pos(pos)
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local num_rows = vim.api.nvim_buf_line_count(0)
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--[[
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if the row value in the original cursor
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position tuple is greater than the
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line count after empty line deletion
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(meaning that the cursor was inside of
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the group of empty lines at the end of
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the file when they were deleted), set
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the cursor row to the last line.
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]]
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if pos[1] > num_rows then
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pos[1] = num_rows
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end
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vim.api.nvim_win_set_cursor(0, pos)
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end
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function M.setup(opts)
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local tidy_grp = vim.api.nvim_create_augroup("tidy", { clear = true })
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vim.api.nvim_create_autocmd("BufWritePre", {
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group = tidy_grp,
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callback = function()
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if is_excluded_ft(opts) then
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return false
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end
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local cursor_pos = vim.api.nvim_win_get_cursor(0)
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vim.cmd([[:keepjumps keeppatterns %s/\s\+$//e]])
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-- delete all lines at end of buffer, see source 2
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vim.cmd([[:keepjumps keeppatterns silent! 0;/^\%(\n*.\)\@!/,$d]])
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reset_cursor_pos(cursor_pos)
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end,
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})
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end
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return M
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