From 663119c828c5f471de41da2a5d399b6f9c972438 Mon Sep 17 00:00:00 2001
From: Daniel Lundin <dln@arity.se>
Date: Sun, 10 Nov 2024 14:18:24 +0100
Subject: [PATCH] nvim: sort buffers by most recent use

---
 home/common/nvim/mini.lua | 54 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/home/common/nvim/mini.lua b/home/common/nvim/mini.lua
index 0b41ecd..2c71357 100644
--- a/home/common/nvim/mini.lua
+++ b/home/common/nvim/mini.lua
@@ -78,6 +78,60 @@ MiniPick.registry.grep_live_root = function(local_opts)
   return MiniPick.builtin.grep_live(local_opts, { source = { cwd = root_dir } })
 end
 
+require("mini.pick").registry.buffers = function(local_opts, opts)
+		local_opts = vim.tbl_deep_extend(
+			"force",
+			{ sort_lastused = false, sort_mru = true, include_current = true, include_unlisted = false },
+			local_opts or {}
+		)
+		local buffers_output = vim.api.nvim_exec("buffers" .. (local_opts.include_unlisted and "!" or ""), true)
+		local cur_buf_id, include_current = vim.api.nvim_get_current_buf(), local_opts.include_current
+		local items = {}
+		local default_selection_idx = 1
+		for _, l in ipairs(vim.split(buffers_output, "\n")) do
+			local buf_str, name = l:match("^%s*%d+"), l:match('"(.*)"')
+			local buf_id = tonumber(buf_str)
+			local flag = buf_id == vim.fn.bufnr("") and "%" or (buf_id == vim.fn.bufnr("#") and "#" or " ")
+			local item = { text = name, bufnr = buf_id, flag = flag }
+			if buf_id ~= cur_buf_id or include_current then
+				if local_opts.sort_lastused and not local_opts.ignore_current_buffer and flag == "#" then
+					default_selection_idx = 2
+				end
+				if local_opts.sort_lastused and (flag == "#" or flag == "%") then
+					local idx = ((items[1] ~= nil and items[1].flag == "%") and 2 or 1)
+					table.insert(items, idx, item)
+				else
+					table.insert(items, item)
+				end
+			end
+		end
+		if local_opts.sort_mru then
+			table.sort(items, function(a, b)
+				return vim.fn.getbufinfo(a.bufnr)[1].lastused > vim.fn.getbufinfo(b.bufnr)[1].lastused
+			end)
+		end
+
+		local show = function(buf_id, items, query)
+			require("mini.pick").default_show(buf_id, items, query, { show_icons = true })
+		end
+		local default_opts = { source = { name = "Buffers", show = show } }
+		opts = vim.tbl_deep_extend("force", default_opts, opts or {}, { source = { items = items } })
+		if default_selection_idx > 1 then
+			vim.api.nvim_create_autocmd("User", {
+				pattern = "MiniPickStart",
+				once = true,
+				callback = function()
+					local mappings = require("mini.pick").get_picker_opts().mappings
+					local keys = vim.fn["repeat"](mappings.move_down, default_selection_idx - 1)
+					vim.api.nvim_input(vim.api.nvim_replace_termcodes(keys, true, true, true))
+				end,
+			})
+		end
+		return require("mini.pick").start(opts)
+	end
+
+
+
 
 local miniclue = require('mini.clue')
 miniclue.setup({ -- cute prompts about bindings