changeset 33722:ccde95a374dd

runtime(tar): improve the error detection Commit: https://github.com/vim/vim/commit/3d37231437fc0f761664a7cabc8f7b927b468767 Author: Christian Brabandt <cb@256bit.org> Date: Sun Nov 5 17:44:05 2023 +0100 runtime(tar): improve the error detection Do not rely on the fact, that the last line matches warning, error, inappropriate or unrecognized to determine if an error occurred. It could also be a file, contains such a keyword. So make the error detection slightly more strict and only assume an error occured, if in addition to those 4 keywords, also a space matches (this assumes the error message contains a space), which luckily on Unix not many files match by default. The whole if condition seems however slightly dubious. In case an error happened, this would probably already be caught in the previous if statement, since this checks for the return code of the tar program. There may however be tar implementations, that do not set the exit code for some kind of error (but print an error message)? But let's keep this check for now, not many people have noticed this behaviour until now, so it seems to work reasonably well anyhow. related: #6425 fixes: #13489 Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Sun, 05 Nov 2023 18:00:03 +0100
parents d7ac49e53d62
children b84cb07b4841
files runtime/autoload/tar.vim
diffstat 1 files changed, 13 insertions(+), 4 deletions(-) [+]
line wrap: on
line diff
--- a/runtime/autoload/tar.vim
+++ b/runtime/autoload/tar.vim
@@ -1,7 +1,7 @@
 " tar.vim: Handles browsing tarfiles
 "            AUTOLOAD PORTION
-" Date:		Jan 07, 2020
-" Version:	32
+" Date:		Nov 05, 2023
+" Version:	32a  (with modifications from the Vim Project)
 " Maintainer:	Charles E Campbell <NcampObell@SdrPchip.AorgM-NOSPAM>
 " License:	Vim License  (see vim's :help license)
 "
@@ -22,7 +22,7 @@
 if &cp || exists("g:loaded_tar")
  finish
 endif
-let g:loaded_tar= "v32"
+let g:loaded_tar= "v32a"
 if v:version < 702
  echohl WarningMsg
  echo "***warning*** this version of tar needs vim 7.2"
@@ -208,7 +208,16 @@ fun! tar#Browse(tarfile)
 "   call Dret("tar#Browse : a:tarfile<".a:tarfile.">")
    return
   endif
-  if line("$") == curlast || ( line("$") == (curlast + 1) && getline("$") =~# '\c\%(warning\|error\|inappropriate\|unrecognized\)')
+  " If there was an error message, the last line probably matches some keywords but
+  " should also contain whitespace for readability. Make sure not to match a
+  " filename that contains the keyword (error/warning/unrecognized/inappropriate, etc)
+  "
+  " FIXME:is this actually necessary? In case of an error, we should probably
+  "       have noticed in the if statement above since tar should have exited
+  "       with a non-zero exit code.
+  if line("$") == curlast || ( line("$") == (curlast + 1) &&
+        \ getline("$") =~# '\c\<\%(warning\|error\|inappropriate\|unrecognized\)\>' &&
+        \ getline("$") =~  '\s' )
    redraw!
    echohl WarningMsg | echo "***warning*** (tar#Browse) ".a:tarfile." doesn't appear to be a tar file" | echohl None
    keepj sil! %d