99 lines
3 KiB
Lua
99 lines
3 KiB
Lua
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vim.o.foldcolumn = "1" -- '0' is not bad
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vim.o.foldlevel = 99 -- Using ufo provider need a large value, feel free to decrease the value
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vim.o.foldlevelstart = 99
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vim.o.foldenable = true
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vim.o.fillchars = [[eob: ,fold: ,foldopen:,foldsep: ,foldclose:]]
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vim.o.statuscolumn = "%s" -- sign column
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.. "%="
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.. "%{%" -- evaluate this, and then evaluate what it returns
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.. "&number ?"
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.. "(v:relnum ?"
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-- when showing relative numbers, make sure to pad so things don't shift as you move the cursor
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.. 'printf("%"..len(line("$")).."s", v:relnum)'
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.. ":"
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.. "v:lnum"
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.. ")"
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.. ":"
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.. '""'
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.. "%}"
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.. "%#FoldColumn#" -- highlight group for fold
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.. "%{" -- expression for showing fold expand/colapse
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.. "foldlevel(v:lnum) > foldlevel(v:lnum - 1)" -- any folds?
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.. "? (foldclosed(v:lnum) == -1" -- currently open?
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.. '? ""' -- point down
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.. ': ""' -- point to right
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.. ")"
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.. ': " "' -- blank for no fold, or inside fold
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.. "}"
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.. " "
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local ftMap = {
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vim = "indent",
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python = { "indent" },
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git = "",
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}
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---@param bufnr number
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---@return Promise
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local function customizeSelector(bufnr)
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local function handleFallbackException(err, providerName)
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if type(err) == "string" and err:match("UfoFallbackException") then
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return require("ufo").getFolds(bufnr, providerName)
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else
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return require("promise").reject(err)
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end
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end
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return require("ufo")
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.getFolds(bufnr, "lsp")
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:catch(function(err)
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return handleFallbackException(err, "treesitter")
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end)
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:catch(function(err)
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return handleFallbackException(err, "indent")
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end)
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end
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local handler = function(virtText, lnum, endLnum, width, truncate)
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local newVirtText = {}
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local suffix = (" %d "):format(endLnum - lnum)
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local sufWidth = vim.fn.strdisplaywidth(suffix)
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local targetWidth = width - sufWidth
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local curWidth = 0
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for _, chunk in ipairs(virtText) do
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local chunkText = chunk[1]
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local chunkWidth = vim.fn.strdisplaywidth(chunkText)
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if targetWidth > curWidth + chunkWidth then
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table.insert(newVirtText, chunk)
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else
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chunkText = truncate(chunkText, targetWidth - curWidth)
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local hlGroup = chunk[2]
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table.insert(newVirtText, { chunkText, hlGroup })
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chunkWidth = vim.fn.strdisplaywidth(chunkText)
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-- str width returned from truncate() may less than 2nd argument, need padding
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if curWidth + chunkWidth < targetWidth then
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suffix = suffix .. (" "):rep(targetWidth - curWidth - chunkWidth)
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end
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break
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end
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curWidth = curWidth + chunkWidth
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end
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table.insert(newVirtText, { suffix, "MoreMsg" })
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return newVirtText
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end
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require("ufo").setup({
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provider_selector = function(_, filetype, _)
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return ftMap[filetype] or customizeSelector
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end,
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fold_virt_text_handler = handler,
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})
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-- Using ufo provider need remap `zR` and `zM`. If Neovim is 0.6.1, remap yourself
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require("which-key").register({
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z = {
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R = { require("ufo").openAllFolds, "Open all folds" },
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M = { require("ufo").closeAllFolds, "Close all folds" },
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},
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})
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