cue modules: move stdlib to pkg/alpha.dagger.io

In preparation for Europa, we will vendor multiple CUE modules:

- `pkg/alpha.dagger.io`: legacy non-europa packages
- `pkg/dagger.io`: core Europa packages
- `pkg/universe.dagger.io`: Europa universe

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

pkg/alpha.dagger.io/kubernetes/helm/code.cue

@@ -0,0 +1,43 @@
+package helm
+
+#code: #"""
+	# Add the repository
+	if [ -n "$HELM_REPO" ]; then
+		helm repo add repository "${HELM_REPO}"
+		helm repo update
+	fi
+
+	# If the chart is a file, then it's the chart name
+	# If it's a directly, then it's the contents of the cart
+	if [ -f "/helm/chart" ]; then
+	    HELM_CHART="repository/$(cat /helm/chart)"
+	else
+	    HELM_CHART="/helm/chart"
+	fi
+
+	OPTS=""
+	OPTS="$OPTS --timeout "$HELM_TIMEOUT""
+	OPTS="$OPTS --namespace "$KUBE_NAMESPACE""
+	[ "$HELM_WAIT" = "true" ] && OPTS="$OPTS --wait"
+	[ "$HELM_ATOMIC" = "true" ] && OPTS="$OPTS --atomic"
+	[ -f "/helm/values.yaml" ] && OPTS="$OPTS -f /helm/values.yaml"
+
+	# Select the namespace
+	kubectl create namespace "$KUBE_NAMESPACE" || true
+
+	case "$HELM_ACTION" in
+	    install)
+	        helm install $OPTS "$HELM_NAME" "$HELM_CHART"
+	    ;;
+	    upgrade)
+	        helm upgrade $OPTS "$HELM_NAME" "$HELM_CHART"
+	    ;;
+	    installOrUpgrade)
+	        helm upgrade $OPTS --install "$HELM_NAME" "$HELM_CHART"
+	    ;;
+	    *)
+	        echo unsupported helm action "$HELM_ACTION"
+	        exit 1
+	    ;;
+	esac
+	"""#