chore(zsh/completion): improve completion setup for various commands

zsh/containers.zsh

@@ -32,19 +32,5 @@ fi
 
 if command-exists orb; then
   alias oc="orb"
-
-  _setup-orb-completion() {
-    local target
-    target="${ZSH_COMPLETIONS}/_orb"
-
-    if [ ! -f "$target" ] || [ "$target" -ot "$(command -v orb)" ]; then
-      echo "Setting up completion for orb -- $target"
-      mkdir -p "$(dirname "$target")"
-      orb completion zsh > "$target"
-      chmod +x "$target"
-      autoload -U compinit && compinit
-    fi
-  }
-
-  _setup-orb-completion
+  setup-completions orb "$(command -v orb)" orb completion zsh
 fi

zsh/kubernetes.zsh

@@ -9,19 +9,7 @@ alias hl="helm"
 alias mk="minikube"
 
 if command-exists kubectl; then
-  _setup-kubectl-completion() {
-    local target
-    target="$ZSH_COMPLETIONS/_kubectl"
-
-    if [ ! -f "$target" ] || [ "$target" -ot "$(command -v kubectl)" ]; then
-      echo "Setting up completion for kubectl -- $target"
-      mkdir -p "$ZSH_COMPLETIONS"
-      kubectl completion zsh > "$target"
-      chmod +x "$target"
-      autoload -U compinit && compinit
-    fi
-  }
-  _setup-kubectl-completion
+  setup-completions kubectl "$(command -v kubectl)" kubectl completion zsh
 
   if command-exists brew-prefix; then
     switch() {

zsh/rust.zsh

@@ -22,18 +22,10 @@ fi
 # ==============================================================================
 
 if command-exists rustup; then
-  _rustup() {
-    unset -f _rustup
-    eval "$(rustup completions zsh)"
-  }
-  compctl -K _rustup rustup
+  setup-completions rustup "$(command -v rustup)" rustup completions zsh
 
   if command-exists cargo; then
-    _cargo() {
-      unset -f _cargo
-      eval "$(rustup completions zsh cargo)"
-    }
-    compctl -K _cargo cargo
+    setup-completions cargo "$(command -v cargo)" rustup completions zsh cargo
   fi
 fi