feat: simplify flag parsing in resource plugin

Commands should be written such that they take arguments as is.

plugins/resource/functions.go

@@ -0,0 +1,130 @@
+package resource
+
+import (
+	"fmt"
+
+	"github.com/dokku/dokku/plugins/common"
+)
+
+func clearByResourceType(appName string, processType string, resourceType string) {
+	noun := "limits"
+	if resourceType == "reserve" {
+		noun = "reservation"
+	}
+
+	message := fmt.Sprintf("clearing %v %v", appName, noun)
+	if processType != "_default_" && processType != "" {
+		message = fmt.Sprintf("%v (%v)", message, processType)
+	}
+	common.LogInfo2Quiet(message)
+
+	if processType == "" {
+		resources, err := common.PropertyGetAll("resource", appName)
+		if err != nil {
+			return
+		}
+		for key := range resources {
+			common.PropertyDelete("resource", appName, key)
+		}
+	} else {
+		resources := []string{
+			"cpu",
+			"memory",
+			"memory-swap",
+			"network",
+			"network-ingress",
+			"network-egress",
+			"nvidia-gpu",
+		}
+
+		for _, key := range resources {
+			property := propertyKey(processType, resourceType, key)
+			common.PropertyDelete("resource", appName, property)
+		}
+	}
+}
+
+func setResourceType(appName string, processType string, r Resource, resourceType string) error {
+	if len(processType) == 0 {
+		processType = "_default_"
+	}
+
+	resources := map[string]string{
+		"cpu":             r.CPU,
+		"memory":          r.Memory,
+		"memory-swap":     r.MemorySwap,
+		"network":         r.Network,
+		"network-ingress": r.NetworkIngress,
+		"network-egress":  r.NetworkEgress,
+		"nvidia-gpu":      r.NvidiaGPU,
+	}
+
+	hasValues := false
+	for _, value := range resources {
+		if value != "" {
+			hasValues = true
+		}
+	}
+
+	if !hasValues {
+		reportResourceType(appName, processType, resourceType)
+		return nil
+	}
+
+	noun := "limits"
+	if resourceType == "reserve" {
+		noun = "reservation"
+	}
+	message := fmt.Sprintf("Setting resource %v for %v", noun, appName)
+	if processType != "_default_" {
+		message = fmt.Sprintf("%v (%v)", message, processType)
+	}
+	common.LogInfo2Quiet(message)
+
+	for key, value := range resources {
+		if value == "" {
+			continue
+		}
+
+		common.LogVerbose(fmt.Sprintf("%v: %v", key, value))
+		property := propertyKey(processType, resourceType, key)
+		err := common.PropertyWrite("resource", appName, property, value)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func reportResourceType(appName string, processType string, resourceType string) {
+	noun := "limits"
+	if resourceType == "reserve" {
+		noun = "reservation"
+	}
+
+	message := fmt.Sprintf("resource %v %v information", noun, appName)
+	if processType == "_default_" {
+		message = fmt.Sprintf("%v [defaults]", message)
+	} else {
+		message = fmt.Sprintf("%v (%v)", message, processType)
+	}
+	common.LogInfo2Quiet(message)
+
+	resources := []string{
+		"cpu",
+		"memory",
+		"memory-swap",
+		"network",
+		"network-ingress",
+		"network-egress",
+		"nvidia-gpu",
+	}
+
+	for _, key := range resources {
+		property := propertyKey(processType, resourceType, key)
+		value := common.PropertyGet("resource", appName, property)
+		common.LogVerbose(fmt.Sprintf("%v: %v", key, value))
+	}
+	return
+}