if [ -n "$__CURRENT_GIT_BRANCH" ]; then
local s="%F{cyan}-[%F{white}"
s+="$__CURRENT_GIT_BRANCH"
case "$__CURRENT_GIT_BRANCH_STATUS" in
ahead)
s+="↑"
;;
diverged)
s+="↕"
;;
behind)
s+="↓"
;;
esac
if [ -n "$__CURRENT_GIT_BRANCH_IS_DIRTY" ]; then
s+="⚡"
fi
s+="%F{cyan}]"
printf "%s%s" $s
fi