expose P9K_SSH and make it available as soon as p10k is sourced

internal/p10k.zsh

@@ -1062,7 +1062,7 @@ prompt_context() {
   if ! _p9k_cache_get $0 "${(%):-%#}"; then
     local -i enabled=1
     local content
-    if [[ $_POWERLEVEL9K_ALWAYS_SHOW_CONTEXT == 0 && -n $DEFAULT_USER && $_P9K_SSH == 0 ]]; then
+    if [[ $_POWERLEVEL9K_ALWAYS_SHOW_CONTEXT == 0 && -n $DEFAULT_USER && $P9K_SSH == 0 ]]; then
       local user="$(whoami)"
       if [[ $user == $DEFAULT_USER ]]; then
         if (( _POWERLEVEL9K_ALWAYS_SHOW_USER )); then
@@ -1078,7 +1078,7 @@ prompt_context() {
       state="DEFAULT"
       if [[ "${(%):-%#}" == '#' ]]; then
         state="ROOT"
-      elif (( _P9K_SSH )); then
+      elif (( P9K_SSH )); then
         if [[ -n "$SUDO_COMMAND" ]]; then
           state="REMOTE_SUDO"
         else
@@ -1128,7 +1128,7 @@ prompt_user() {
 ################################################################
 # Host: machine (where am I)
 prompt_host() {
-  if (( _P9K_SSH )); then
+  if (( P9K_SSH )); then
     _p9k_prompt_segment "$0_REMOTE" "${_p9k_color1}" yellow SSH_ICON 0 '' "$_POWERLEVEL9K_HOST_TEMPLATE"
   else
     _p9k_prompt_segment "$0_LOCAL" "${_p9k_color1}" yellow HOST_ICON 0 '' "$_POWERLEVEL9K_HOST_TEMPLATE"
@@ -1994,7 +1994,7 @@ prompt_rvm() {
 ################################################################
 # Segment to display SSH icon when connected
 prompt_ssh() {
-  if (( _P9K_SSH )); then
+  if (( P9K_SSH )); then
     _p9k_prompt_segment "$0" "$_p9k_color1" "yellow" 'SSH_ICON' 0 '' ''
   fi
 }
@@ -4039,25 +4039,27 @@ _p9k_init_ssh() {
   #
   # License: https://github.com/sindresorhus/pure/blob/e8abf9d37185ec9b7b4398ca9c5eba555a1028eb/license.
 
-  [[ -n $_P9K_SSH ]] && return
-  export _P9K_SSH=0
+  [[ -n $P9K_SSH ]] && return
+  typeset -gix P9K_SSH=0
   if [[ -n $SSH_CLIENT || -n $SSH_TTY || -n $SSH_CONNECTION ]]; then
-    _P9K_SSH=1
+    P9K_SSH=1
     return
   fi
 
   # When changing user on a remote system, the $SSH_CONNECTION environment variable can be lost.
   # Attempt detection via `who`.
   (( $+commands[who] )) || return
-  local w && w="$(who -m 2>/dev/null)" || w=${(@M)${(f)"$(who 2>/dev/null)"}:#*[[:space:]]${TTY#/dev/}[[:space:]]*}
 
   local ipv6='(([0-9a-fA-F]+:)|:){2,}[0-9a-fA-F]+'  # Simplified, only checks partial pattern.
   local ipv4='([0-9]{1,3}\.){3}[0-9]+'              # Simplified, allows invalid ranges.
   # Assume two non-consecutive periods represents a hostname. Matches `x.y.z`, but not `x.y`.
   local hostname='([.][^. ]+){2}'
 
+  local w
+  w="$(who -m 2>/dev/null)" || w=${(@M)${(f)"$(who 2>/dev/null)"}:#*[[:space:]]${TTY#/dev/}[[:space:]]*}
+
   # Usually the remote address is surrounded by parenthesis but not on all systems (e.g., Busybox).
-  [[ $w =~ "\(?($ipv4|$ipv6|$hostname)\)?\$" ]] && _P9K_SSH=1
+  [[ $w =~ "\(?($ipv4|$ipv6|$hostname)\)?\$" ]] && P9K_SSH=1
 }
 
 _p9k_must_init() {
@@ -4086,7 +4088,6 @@ _p9k_init() {
   _p9k_init_vars
   _p9k_init_params
   _p9k_init_prompt
-  _p9k_init_ssh
 
   local uname="$(uname)"
   if [[ $uname == Linux && "$(uname -o 2>/dev/null)" == Android ]]; then
@@ -4505,4 +4506,5 @@ zmodload zsh/system
 zmodload -F zsh/stat b:zstat
 zmodload -F zsh/net/socket b:zsocket
 
+_p9k_init_ssh
 prompt_powerlevel9k_setup