Linux compatibility, save gracefully in insert or visual modes

plugin/autowrite.vim

@@ -24,7 +24,7 @@ function! s:RemoveVimPane()
 endfunction
 
 function! s:CurrentVimPane()
-  return join([s:chomp(system('echo $TMUX_PANE')), s:chomp(system('ps $$ -otty=')), getpid()], " ")
+  return join([s:chomp(system('echo $TMUX_PANE')), s:chomp(system('ps -otty= $$')), getpid()], " ")
 endfunction
 
 function! s:chomp(string)
@@ -42,4 +42,10 @@ if &term == "screen-256color"
   set t_F9=[33~
 endif
 
-map <silent> <F19>WriteAll :silent! wall<CR>
+nnoremap <silent> <F19>WriteAll :silent! wall<CR>
+inoremap <silent> <F19>WriteAll <C-o>:silent! wall<CR>
+vnoremap <silent> <F19>WriteAll <Esc>:silent! wall<CR>gv
+
+nnoremap <silent> <F19>AutoReload :silent! checktime<CR>
+inoremap <silent> <F19>AutoReload <C-o>:silent! checktime<CR>
+vnoremap <silent> <F19>AutoReload <Esc>:silent! checktime<CR>gv

tmux-autowrite/autowrite-vim.zsh

@@ -0,0 +1,47 @@
+autoload -U add-zsh-hook
+
+# Things that could go wrong:
+# √ No vim
+# √ Vim is suspended
+# √ Multiple vims
+# √ A vim doesn't support F-keys
+# √ No tmux
+# √ Command given to run-shell could return non-zero
+# √ No tmux server running
+function send_to_vim {
+  local pane=$1
+  local tty=$2
+  local pid=$3
+
+  shift 3  # Remaining arguments are keys to send
+
+  (ps -ostate=,pid= -t $tty | grep "S \+$pid") >/dev/null 2>&1
+  local vim_in_foreground=$?
+
+  if [[ $vim_in_foreground == 0 ]]; then
+    tmux send-keys -t $pane $@
+  fi
+}
+
+function trigger_vim_function {
+  local keys=$1
+  local pane_list
+  local panes
+  pane_list=$(tmux show-environment -g | grep VIM_PANES | cut -f 2 -d =)
+  panes=("${(s/;/)pane_list}")
+  for vim_pane in $panes; do
+    eval send_to_vim $vim_pane $keys
+  done
+  true
+}
+
+function trigger_autosave {
+  trigger_vim_function "F19 WriteAll"
+}
+
+function trigger_autoreload {
+  trigger_vim_function "F19 AutoReload"  
+}
+
+add-zsh-hook preexec trigger_autosave
+add-zsh-hook precmd  trigger_autoreload