From 91fd4d127ef07e11a226cd0de008ade43ae1439b Mon Sep 17 00:00:00 2001 From: Shmerl Date: Wed, 10 Dec 2025 13:33:33 -0500 Subject: [PATCH] fix(vim.loader): randomized AppImage path pollutes luac cache #35636 Problem: When using the Nvim appimage, `~/.cache/nvim/luac` directory can grow to 250,000+ files. Example of 2 identical files in `./luac/`: %2ftmp%2f.mount_nvim.a65Rja0%2fusr%2fshare%2fnvim%2fruntime%2flua%2fvim%2ftreesitter.luac %2ftmp%2f.mount_nvim.aNpxXgo%2fusr%2fshare%2fnvim%2fruntime%2flua%2fvim%2ftreesitter.luac Analysis: The `nvim.appimage` mounts nvim at a different temporary path each time it is invoked. The naming scheme of these cache files is random, which defats the purpose of the cache creates N new files on every launch of nvim. Steps to reproduce: 1. install `nvim.appimage` 2. `mv ~/.cache/nvim/luac ~/.cache/nvim/luac.backup` 3. `nvim` 4. Observe contents of `~/.cache/nvim/luac/` 5. Close nvim and run `nvim` again 6. Observe contents of `~/.cache/nvim/luac/` and see that new identical files have been added with a different mount prefix Solution: When running from an appimage, trim the random part of the filepaths. (cherry picked from commit 78bbe53f7615e8b38d5289d9ce0579996109579b) --- runtime/lua/vim/loader.lua | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/runtime/lua/vim/loader.lua b/runtime/lua/vim/loader.lua index c7158673fe..bf3d6f9c8e 100644 --- a/runtime/lua/vim/loader.lua +++ b/runtime/lua/vim/loader.lua @@ -7,6 +7,7 @@ local loaders = package.loaders local _loadfile = loadfile local VERSION = 4 +local is_appimage = (os.getenv('APPIMAGE') ~= nil) local M = {} @@ -78,7 +79,15 @@ local function fs_stat_cached(path) end local function normalize(path) - return fs.normalize(path, { expand_env = false, _fast = true }) + path = fs.normalize(path, { expand_env = false, _fast = true }) + + if is_appimage then + -- Avoid cache pollution caused by AppImage randomizing the program root. #31165 + -- "/tmp/.mount_nvimAmpHPH/usr/share/nvim/runtime" => "/usr/share/nvim/runtime" + path = path:match('(/usr/.*)') or path + end + + return path end local rtp_cached = {} --- @type string[]