neoconfig/lua/custom/fold_telescope.lua
2025-03-09 20:27:36 +01:00

70 lines
2.0 KiB
Lua

local pickers = require("telescope.pickers")
local finders = require("telescope.finders")
local conf = require("telescope.config").values
local actions = require("telescope.actions")
local action_state = require("telescope.actions.state")
-- Utility: Given a line number, returns the fold's starting line.
local function get_fold_start(l)
local closed = vim.fn.foldclosed(l)
if closed ~= -1 then
return closed
else
local level = vim.fn.foldlevel(l)
if level == 0 then
return l
end
local start = l
while start > 1 and vim.fn.foldlevel(start - 1) >= level do
start = start - 1
end
return start
end
end
local function jump_to_fold_starts()
local lines = vim.api.nvim_buf_get_lines(0, 0, -1, false)
local entries = {}
local prev_level = 0
-- Detect fold-start lines by checking if foldlevel increases.
for i, line in ipairs(lines) do
local current_level = vim.fn.foldlevel(i)
if current_level > prev_level then
table.insert(entries, {
value = line,
display = string.format("%d: %s", i, line),
ordinal = line,
file_line = i, -- Save the actual file line number.
})
end
prev_level = current_level
end
pickers.new({}, {
prompt_title = "Fold Starts",
finder = finders.new_table {
results = entries,
entry_maker = function(entry)
return entry -- Already in the expected shape.
end,
},
sorter = conf.generic_sorter({}),
attach_mappings = function(prompt_bufnr, _)
actions.select_default:replace(function()
actions.close(prompt_bufnr)
local selection = action_state.get_selected_entry()
if selection then
local target_line = get_fold_start(selection.file_line)
vim.cmd(string.format("normal! %dG", target_line))
vim.cmd("normal! zv")
end
end)
return true
end,
}):find()
end
-- Expose the function so you can require it.
return { jump_to_fold_starts = jump_to_fold_starts }