save and restore screen in the wizard

README.md

@@ -1165,8 +1165,8 @@ parameters are defined. Based on your prompt style choices, the configuration wi
 source this file. The next time you start Zsh, the configuration wizard shouldn't run automatically.
 If it does, this means the evaluation of `~/.zshrc` terminates prematurely before it reaches the
 line that sources `~/.p10k.zsh`. This most often happens due to syntax errors in `~/.zshrc`. These
-errors get hidden by the configuration wizard screen, so you don't notice them. Scroll up in the
-first configuration wizard screen to see these errors. Alternatively, run
+errors get hidden by the configuration wizard screen, so you don't notice them. When you exit
+configuration wizard, look for error messages. You can also use
 `POWERLEVEL9K_DISABLE_CONFIGURATION_WIZARD=true zsh` to start Zsh without automatically running the
 configuration wizard. Once you can see the errors, fix `~/.zshrc` to get rid of them.
 

internal/notes.txt

@@ -30,7 +30,6 @@
     emulate zsh -o prompt_percent -c 'print -P "%F{#ff0000}red%F{green}%B bold green"'
 - bug: open a new tab and hit ctrl-p. an empty line will appear before prompt.
 - zsh-syntax-highlighting added two precommands: chronic and ifne.
-- use this in wizard: https://wiki.bash-hackers.org/snipplets/screen_saverestore
 - add POWERLEVEL9K_MODE=ascii
 - add ascii version of lean style (both color versions); hopefully without creating new files.
 - wizard: if the font seems very weak, add another question about ❯. if it's not visible, go ascii.

internal/wizard.zsh

@@ -14,6 +14,8 @@ if (( OPTIND <= ARGC )); then
   return 1
 fi
 
+(( $+terminfo[smcup] && $+terminfo[rmcup] )) && echoti smcup
+
 local -ri force
 
 local -r font_base_url='https://github.com/romkatv/dotfiles-public/raw/master/.local/share/fonts/NerdFonts'
@@ -201,7 +203,12 @@ function quit() {
   if [[ $1 == '-c' ]]; then
     print -P ""
   else
-    clear
+    if (( $+terminfo[smcup] && $+terminfo[rmcup] )); then
+      echoti rmcup
+      print
+    else
+      clear
+    fi
   fi
   if (( force )); then
     print -P "Powerlevel10k configuration wizard has been aborted. To run it again, type:"
@@ -1632,8 +1639,8 @@ function ask_config_overwrite() {
       q) quit;;
       r) return 1;;
       y)
-        config_backup="$(mktemp ${TMPDIR:-/tmp}/$__p9k_cfg_basename.XXXXXXXXXX)" || exit 1
-        cp $__p9k_cfg_path $config_backup                                        || exit 1
+        config_backup="$(mktemp ${TMPDIR:-/tmp}/$__p9k_cfg_basename.XXXXXXXXXX)" || quit -c
+        cp $__p9k_cfg_path $config_backup                                        || quit -c
         config_backup_u=${${TMPDIR:+\$TMPDIR}:-/tmp}/${(q-)config_backup:t}
         break
         ;;
@@ -2162,7 +2169,12 @@ while true; do
   break
 done
 
-clear
+if (( $+terminfo[smcup] && $+terminfo[rmcup] )); then
+  echoti rmcup
+  print
+else
+  clear
+fi
 
 flowing +c New config: "%B${__p9k_cfg_path_u//\\/\\\\}%b."
 if [[ -n $config_backup ]]; then