theme: Rework zsh-git-prompt exception

vulporuza.zsh-theme

@@ -2,18 +2,29 @@
 
 typeset my_gray="$FG[240]"
 
-# Primary prompt
+# Optional widgets: zsh-git-prompt and virtualenv plugin may be missing.
-if  [ -z "${__GIT_PROMPT_DIR}" ]; then
+if (( $+functions[git_super_status] )); then
-	PS1='$my_gray${(r:$COLUMNS::-:)}%{$reset_color%}
+  _vulporuza_git='$(git_super_status)'
-╭ %T %{$FG[208]%}%~%{$reset_color%}$(git_prompt_info)
-╰$(virtualenv_prompt_info) %(!.#.») '
 else
-	PS1='$my_gray${(r:$COLUMNS::-:)}%{$reset_color%}
+  _vulporuza_git='$(git_prompt_info)'
-╭ %T %{$FG[208]%}%~%{$reset_color%}$(git_super_status)
-╰$(virtualenv_prompt_info) %(!.#.») '
 fi
+
+if (( $+functions[virtualenv_prompt_info] )); then
+  _vulporuza_venv='$(virtualenv_prompt_info)'
+else
+  _vulporuza_venv=''
+fi
+
+# Primary prompt
+PS1='$my_gray${(r:$COLUMNS::-:)}%{$reset_color%}
+╭ %T %{$FG[208]%}%~%{$reset_color%}'$_vulporuza_git'
+╰'$_vulporuza_venv' %(!.#.») '
+
 PS2='%{$fg[red]%}\ %{$reset_color%}'
 
+# Cleanup
+unset _vulporuza_git _vulporuza_venv
+
 # Right prompt
 RPS1='%(?..%{$fg[red]%}%? ↵%{$reset_color%}) $FG[245]%n@%m%{$reset_color%}'
 
@@ -25,37 +36,36 @@ ZSH_THEME_VIRTUALENV_SUFFIX=")%{$reset_color%}"
 ZSH_THEME_GIT_PROMPT_PREFIX=" %{$reset_color%}["
 ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%}]"
 
-if  [ -z "${__GIT_PROMPT_DIR}" ]; then
+if (( $+functions[git_super_status] )); then
-	# git settings
+  ZSH_THEME_GIT_PROMPT_HASH_PREFIX=":"
-	ZSH_THEME_GIT_PROMPT_CLEAN="%{$reset_color%}|%{$FG[034]%}✔"
+  ZSH_THEME_GIT_PROMPT_SEPARATOR="|"
-	ZSH_THEME_GIT_PROMPT_DIRTY="%{$reset_color%}|%{$FG[075]%}…"
+  ZSH_THEME_GIT_PROMPT_BRANCH="%{$fg_bold[magenta]%}"
+  ZSH_THEME_GIT_PROMPT_STAGED="%{$fg[red]%}%{●%1G%}"
+  ZSH_THEME_GIT_PROMPT_CONFLICTS="%{$fg[red]%}%{✖%1G%}"
+  ZSH_THEME_GIT_PROMPT_CHANGED="%{$fg[blue]%}%{✚%1G%}"
+  ZSH_THEME_GIT_PROMPT_BEHIND="%{↓%1G%}"
+  ZSH_THEME_GIT_PROMPT_AHEAD="%{↑%1G%}"
+  ZSH_THEME_GIT_PROMPT_STASHED="%{$fg_bold[blue]%}%{⚑%1G%}"
+  ZSH_THEME_GIT_PROMPT_UNTRACKED="%{$fg[cyan]%}%{…%1G%}"
+  ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg_bold[green]%}%{✔%1G%}"
+  ZSH_THEME_GIT_PROMPT_LOCAL=" L"
+  # The remote branch will be shown between these two
+  ZSH_THEME_GIT_PROMPT_UPSTREAM_FRONT=" {%{$fg[blue]%}"
+  ZSH_THEME_GIT_PROMPT_UPSTREAM_END="%{${reset_color}%}}"
+  ZSH_THEME_GIT_PROMPT_MERGING="%{$fg_bold[magenta]%}|MERGING%{${reset_color}%}"
+  ZSH_THEME_GIT_PROMPT_REBASE="%{$fg_bold[magenta]%}|REBASE%{${reset_color}%} "
+  ZSH_THEME_GIT_PROMPT_BISECT="%{$fg_bold[magenta]%}|BISECT%{${reset_color}%} "
 else
-	ZSH_THEME_GIT_PROMPT_HASH_PREFIX=":"
+  ZSH_THEME_GIT_PROMPT_CLEAN="%{$reset_color%}|%{$FG[034]%}✔"
-	ZSH_THEME_GIT_PROMPT_SEPARATOR="|"
+  ZSH_THEME_GIT_PROMPT_DIRTY="%{$reset_color%}|%{$FG[075]%}…"
-	ZSH_THEME_GIT_PROMPT_BRANCH="%{$fg_bold[magenta]%}"
-	ZSH_THEME_GIT_PROMPT_STAGED="%{$fg[red]%}%{●%1G%}"
-	ZSH_THEME_GIT_PROMPT_CONFLICTS="%{$fg[red]%}%{✖%1G%}"
-	ZSH_THEME_GIT_PROMPT_CHANGED="%{$fg[blue]%}%{✚%1G%}"
-	ZSH_THEME_GIT_PROMPT_BEHIND="%{↓%1G%}"
-	ZSH_THEME_GIT_PROMPT_AHEAD="%{↑%1G%}"
-	ZSH_THEME_GIT_PROMPT_STASHED="%{$fg_bold[blue]%}%{⚑%1G%}"
-	ZSH_THEME_GIT_PROMPT_UNTRACKED="%{$fg[cyan]%}%{…%1G%}"
-	ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg_bold[green]%}%{✔%1G%}"
-	ZSH_THEME_GIT_PROMPT_LOCAL=" L"
-	# The remote branch will be shown between these two
-	ZSH_THEME_GIT_PROMPT_UPSTREAM_FRONT=" {%{$fg[blue]%}"
-	ZSH_THEME_GIT_PROMPT_UPSTREAM_END="%{${reset_color}%}}"
-	ZSH_THEME_GIT_PROMPT_MERGING="%{$fg_bold[magenta]%}|MERGING%{${reset_color}%}"
-	ZSH_THEME_GIT_PROMPT_REBASE="%{$fg_bold[magenta]%}|REBASE%{${reset_color}%} "
-	ZSH_THEME_GIT_PROMPT_BISECT="%{$fg_bold[magenta]%}|BISECT%{${reset_color}%} "
 fi
 
 function theme_preexec {
-	print -nr $'\e]2;'"$USER@$HOST » $PWD » $1"$'\a'
+  print -nr $'\e]2;'"$USER@$HOST » $PWD » $1"$'\a'
 }
 add-zsh-hook preexec theme_preexec
 
 function theme_precmd {
-	print -nr $'\e]2;'"$USER@$HOST » $PWD"$'\a'
+  print -nr $'\e]2;'"$USER@$HOST » $PWD"$'\a'
 }
 add-zsh-hook precmd theme_precmd