Zsh: Don't run antibody if we don't need it

.config/zsh/.zshrc

@@ -56,7 +56,7 @@ for plugin in "${(@s/ /)ZSH_PLUGIN_DIST}"; do
     [[ -n "${plugin}" ]] && source "${plugin}"
 done
 unset plugin
-source "${ZSH_PLUGIN_SOURCE}"
+[[ -n "${ZSH_PLUGIN_SOURCE}" ]] && source "${ZSH_PLUGIN_SOURCE}"
 
 # Fuzzy finder, <https://github.com/junegunn/fzf>.
 export FZF_CTRL_R_OPTS="--layout=reverse"

.config/zsh/plugins.zsh

@@ -14,10 +14,12 @@ local -a _my_plugins=(
     # Must come after zsh-syntax-highlighting
     zsh-users/zsh-history-substring-search
 )
+
 if ! command -v fzf > /dev/null; then
     # Don't load these plugins if fzf was not found
     _my_plugins=(${_my_plugins:#Aloxaf/fzf-tab})
 fi
+
 if [[ "$HOST" == "steuerbeamter" ]]; then
     # Don't load these plugins on slow computers
     _my_plugins=(${_my_plugins:#zsh-users/zsh-autosuggestions})
@@ -40,10 +42,11 @@ if [[ -f /etc/gentoo-release ]]; then
 fi
 export ZSH_PLUGIN_DIST="${_my_plugins_dist}" # Arrays can not be exported
 
-zmodload zsh/stat
-zmodload zsh/datetime
+# If there are plugins not handled by the package manager, use antibody
+if [[ -n ${_my_plugins} ]] && command -v antibody > /dev/null; then
+    zmodload zsh/stat
+    zmodload zsh/datetime
 
-if command -v antibody > /dev/null; then
     local plugin_cache_dir="$(antibody home)"
     export ZSH_PLUGIN_SOURCE="${plugin_cache_dir}/antibody-plugins.zsh"