refactor: move api, client, compose packages to pkg

pkg/compose/port.go

@@ -0,0 +1,43 @@
+package compose
+
+import (
+	"fmt"
+	"github.com/compose-spec/compose-go/v2/types"
+	"github.com/psviderski/uncloud/pkg/api"
+)
+
+const PortsExtensionKey = "x-ports"
+
+type PortsSource []string
+
+// TransformServicesPortsExtension transforms the ports extension of all services in the project by replacing a string
+// representation of each port with a parsed PortSpec.
+func transformServicesPortsExtension(project *types.Project) (*types.Project, error) {
+	return project.WithServicesTransform(func(name string, service types.ServiceConfig) (types.ServiceConfig, error) {
+		ports, ok := service.Extensions[PortsExtensionKey].(PortsSource)
+		if !ok {
+			return service, nil
+		}
+
+		specs, err := transformPortsExtension(ports)
+		if err != nil {
+			return service, err
+		}
+
+		service.Extensions[PortsExtensionKey] = specs
+		return service, nil
+	})
+}
+
+func transformPortsExtension(ports PortsSource) ([]api.PortSpec, error) {
+	var specs []api.PortSpec
+	for _, port := range ports {
+		spec, err := api.ParsePortSpec(port)
+		if err != nil {
+			return specs, fmt.Errorf("parse port %q: %w", port, err)
+		}
+		specs = append(specs, spec)
+	}
+
+	return specs, nil
+}