From 29fe883aa9166bdbcae3f935523c75a8aa56fe45 Mon Sep 17 00:00:00 2001 From: "Justin M. Keyes" Date: Wed, 4 Oct 2023 06:31:25 -0700 Subject: feat: ignore swapfile for running Nvim processes #25336 Problem: The swapfile "E325: ATTENTION" dialog is displayed when editing a file already open in another (running) Nvim. Usually this behavior is annoying and irrelevant: - "Recover" and the other options ("Open readonly", "Quit", "Abort") are almost never wanted. - swapfiles are less relevant for "multi-Nvim" since 'autoread' is enabled by default. - Even less relevant if user enables 'autowrite'. Solution: Define a default SwapExists handler which does the following: 1. If the swapfile is owned by a running Nvim process, automatically chooses "(E)dit anyway" (caveat: this creates a new, extra swapfile, which is mostly harmless and ignored except by `:recover` or `nvim -r`. 2. Shows a 1-line "ignoring swapfile..." message. 3. Users can disable the default SwapExists handler via `autocmd! nvim_swapfile`. --- runtime/lua/vim/_editor.lua | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'runtime/lua/vim/_editor.lua') diff --git a/runtime/lua/vim/_editor.lua b/runtime/lua/vim/_editor.lua index 7f09fc8038..1ba7d6163d 100644 --- a/runtime/lua/vim/_editor.lua +++ b/runtime/lua/vim/_editor.lua @@ -1147,11 +1147,28 @@ function vim._init_default_autocmds() end end, }) + vim.api.nvim_create_autocmd({ 'CmdwinEnter' }, { pattern = '[:>]', group = vim.api.nvim_create_augroup('nvim_cmdwin', {}), command = 'syntax sync minlines=1 maxlines=1', }) + + vim.api.nvim_create_autocmd({ 'SwapExists' }, { + pattern = '*', + group = vim.api.nvim_create_augroup('nvim_swapfile', {}), + callback = function() + local info = vim.fn.swapinfo(vim.v.swapname) + local user = vim.uv.os_get_passwd().username + local iswin = 1 == vim.fn.has('win32') + if info.error or info.pid <= 0 or (not iswin and info.user ~= user) then + vim.v.swapchoice = '' -- Show the prompt. + return + end + vim.v.swapchoice = 'e' -- Choose "(E)dit". + vim.notify(('W325: Ignoring swapfile from Nvim process %d'):format(info.pid)) + end, + }) end function vim._init_defaults() -- cgit