From b9cc11536a4e726c58c4776e9bcecff26fc454cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karl=20Yngve=20Lerv=C3=A5g?= <karl.yngve+git@gmail.com>
Date: Mon, 23 Sep 2024 23:07:42 +0200
Subject: [PATCH] fix: handle too long file names

refer: #3001
---
 autoload/vimtex/cache.vim | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/autoload/vimtex/cache.vim b/autoload/vimtex/cache.vim
index c2e1249eea..e6eb0bc253 100644
--- a/autoload/vimtex/cache.vim
+++ b/autoload/vimtex/cache.vim
@@ -320,6 +320,14 @@ function! s:local_name(name) abort " {{{1
   let l:filename = substitute(l:filename, '\/', '%', 'g')
   let l:filename = substitute(l:filename, '\\', '%', 'g')
   let l:filename = substitute(l:filename, ':', '%', 'g')
+
+  " We can't save cache files with too long names. This is not a rigorous fix,
+  " but I think it should handle most relevant cases well enough.
+  " See: https://github.com/lervag/vimtex/issues/3001
+  if strlen(l:filename) > 200
+    let l:filename = '%...' .. strpart(l:filename, strlen(l:filename) - 200)
+  endif
+
   return a:name . l:filename
 endfunction