fino: fix dangling "using" and clean up (#9307)

Co-authored-by: Matsievskiy S.V <matsievskiysv@gmail.com>
Co-authored-by: Marc Cornellà <marc.cornella@live.com>

themes/fino.zsh-theme

@@ -11,26 +11,35 @@
 #
 # Also borrowing from http://stevelosh.com/blog/2010/02/my-extravagant-zsh-prompt/
 
+function virtualenv_prompt_info {
+  [[ -n ${VIRTUAL_ENV} ]] || return
+  echo "${ZSH_THEME_VIRTUALENV_PREFIX:=[}${VIRTUAL_ENV:t}${ZSH_THEME_VIRTUALENV_SUFFIX:=]}"
+}
+
 function prompt_char {
-  git branch >/dev/null 2>/dev/null && echo "±" && return
-  echo '○'
+  command git branch &>/dev/null && echo "±" || echo '○'
 }
 
 function box_name {
-    [ -f ~/.box-name ] && cat ~/.box-name || echo ${SHORT_HOST:-$HOST}
+  [ -f ~/.box-name ] && cat ~/.box-name || echo ${SHORT_HOST:-$HOST}
 }
 
-local ruby_env='using%{$FG[243]%} $(ruby_prompt_info)'
+local ruby_env='$(ruby_prompt_info)'
 local git_info='$(git_prompt_info)'
+local virtualenv_info='$(virtualenv_prompt_info)'
 local prompt_char='$(prompt_char)'
 
-
-PROMPT="╭─%{$FG[040]%}%n%{$reset_color%} %{$FG[239]%}at%{$reset_color%} %{$FG[033]%}$(box_name)%{$reset_color%} %{$FG[239]%}in%{$reset_color%} %{$terminfo[bold]$FG[226]%}%~%{$reset_color%}${git_info} %{$FG[239]%}${ruby_env}
+PROMPT="╭─${FG[040]}%n ${FG[239]}at ${FG[033]}$(box_name) ${FG[239]}in %B${FG[226]}%~%{$reset_color%}${git_info}${ruby_env}${virtualenv_info}
 ╰─${prompt_char}%{$reset_color%} "
 
-ZSH_THEME_GIT_PROMPT_PREFIX=" %{$FG[239]%}on%{$reset_color%} %{$fg[255]%}"
+ZSH_THEME_GIT_PROMPT_PREFIX=" ${FG[239]}on%{$reset_color%} ${FG[255]}"
 ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%}"
-ZSH_THEME_GIT_PROMPT_DIRTY="%{$FG[202]%}✘✘✘"
-ZSH_THEME_GIT_PROMPT_CLEAN="%{$FG[040]%}✔"
-ZSH_THEME_RUBY_PROMPT_PREFIX="‹"
+ZSH_THEME_GIT_PROMPT_DIRTY="${FG[202]}✘✘✘"
+ZSH_THEME_GIT_PROMPT_CLEAN="${FG[040]}✔"
+
+ZSH_THEME_RUBY_PROMPT_PREFIX=" ${FG[239]}using${FG[243]} ‹"
 ZSH_THEME_RUBY_PROMPT_SUFFIX="›%{$reset_color%}"
+
+export VIRTUAL_ENV_DISABLE_PROMPT=1
+ZSH_THEME_VIRTUALENV_PREFIX=" ${FG[239]}using${FG[243]} «"
+ZSH_THEME_VIRTUALENV_SUFFIX="»%{$reset_color%}"