Merge pull request #222 from preservim/check-system-returns

preservim · Jun 3, 2024 · fa35410 · tscolari · Aug 19, 2024 · fa35410
2 parents 5738a47 + 879cb5c
commit fa35410
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Showing 2 changed files with 18 additions and 2 deletions.
diff --git a/doc/vimux.txt b/doc/vimux.txt
@@ -469,5 +469,16 @@ runner is created instead, positioned according to `VimuxOrientation`.
 <
 Default: {}
 
+------------------------------------------------------------------------------
+                                                            *VimuxDebug*
+4.13 g:VimuxDebug~
+
+If you're having trouble with vimux, set this option to get vimux to pass each
+tmux command to |echomsg| before running it.
+>
+  let g:VimuxDebug = v:true
+<
+Default: v:false
+
 ==============================================================================
 vim:tw=78:ts=2:sw=2:expandtab:ft=help:norl:
diff --git a/plugin/vimux.vim b/plugin/vimux.vim
@@ -192,11 +192,16 @@ function! VimuxPromptCommand(...) abort
 endfunction
 
 function! VimuxTmux(arguments) abort
+  let l:tmuxCommand = VimuxOption('VimuxTmuxCommand').' '.a:arguments
   if VimuxOption('VimuxDebug')
-    echom VimuxOption('VimuxTmuxCommand').' '.a:arguments
+    echom l:tmuxCommand
   endif
   if has_key(environ(), 'TMUX')
-    return system(VimuxOption('VimuxTmuxCommand').' '.a:arguments)
+    let l:output = system(l:tmuxCommand)
+    if v:shell_error
+      throw 'Tmux command failed with message:' . l:output
+    endif
+    return l:output
   else
     throw 'Aborting, because not inside tmux session.'
   endif