From 6c7b83a9607cd9e929d79bef1ae947fc2ddcbe10 Mon Sep 17 00:00:00 2001
From: fiplox <me@vpatuta.xyz>
Date: Sun, 22 Jan 2023 17:46:45 +0100
Subject: [PATCH] restore cursor position

---
 lua/config/settings.lua | 50 ++++++++++++++++++++++++++++++++++++++---
 1 file changed, 47 insertions(+), 3 deletions(-)

diff --git a/lua/config/settings.lua b/lua/config/settings.lua
index 354edf0..459a977 100644
--- a/lua/config/settings.lua
+++ b/lua/config/settings.lua
@@ -66,9 +66,8 @@ vim.api.nvim_create_user_command('Pdf', '!pandoc % -o %:r.pdf', { nargs = 0 })
 vim.api.nvim_create_user_command('Slide', '!pandoc -t beamer % -o %:r.pdf', { nargs = 0 })
 vim.api.nvim_create_user_command('Cd', 'lcd %:p:h', { nargs = 0 })
 
--- vim.api.nvim_create_autocmd({ 'BufReadPost' }, { pattern = { '*' }, command = 'silent! g`"zz' })
--- vim.api.nvim_create_autocmd({ 'BufWinLeave' }, { pattern = { '*' }, command = 'mkview' })
--- vim.api.nvim_create_autocmd({ 'BufReadPost' }, { pattern = { '*' }, command = 'silent! loadview' })
+-- vim.api.nvim_create_autocmd({ 'BufWinLeave', 'BufLeave', 'WinLeave' }, { pattern = { '?*' }, command = 'mkview' })
+-- vim.api.nvim_create_autocmd({ 'BufWinEnter' }, { pattern = { '?*' }, command = 'silent! loadview' })
 -- }}}
 function ToggleTroubleAuto()
 	local ok, trouble = pcall(require, 'trouble')
@@ -79,3 +78,48 @@ function ToggleTroubleAuto()
 		end, 0)
 	end
 end
+
+local ignore_buftype = { 'quickfix', 'nofile', 'help' }
+local ignore_filetype = { 'gitcommit', 'gitrebase', 'svn', 'hgcommit' }
+
+local function run()
+	if vim.tbl_contains(ignore_buftype, vim.bo.buftype) then
+		return
+	end
+
+	if vim.tbl_contains(ignore_filetype, vim.bo.filetype) then
+		-- reset cursor to first line
+		vim.cmd [[normal! gg]]
+		return
+	end
+
+	-- If a line has already been specified on the command line, we are done
+	--   nvim file +num
+	if vim.fn.line '.' > 1 then
+		return
+	end
+
+	local last_line = vim.fn.line [['"]]
+	local buff_last_line = vim.fn.line '$'
+
+	-- If the last line is set and the less than the last line in the buffer
+	if last_line > 0 and last_line <= buff_last_line then
+		local win_last_line = vim.fn.line 'w$'
+		local win_first_line = vim.fn.line 'w0'
+		-- Check if the last line of the buffer is the same as the win
+		if win_last_line == buff_last_line then
+			-- Set line to last line edited
+			vim.cmd [[normal! g`"]]
+		-- Try to center
+		elseif buff_last_line - last_line > ((win_last_line - win_first_line) / 2) - 1 then
+			vim.cmd [[normal! g`"zz]]
+		else
+			vim.cmd [[normal! G'"<c-e>]]
+		end
+	end
+end
+
+vim.api.nvim_create_autocmd({ 'BufWinEnter', 'FileType' }, {
+	group = vim.api.nvim_create_augroup('nvim-lastplace', {}),
+	callback = run,
+})