Use MarkFlagsMutuallyExclusive for config gen -rf and config gen -up

cmd/skywire-cli/commands/config/gen.go

@@ -110,8 +110,11 @@ func init() {
 	homepath := visorconfig.HomePath()
 	if homepath != "" {
 		genConfigCmd.Flags().BoolVarP(&isUsrEnv, "user", "u", false, "use paths for user space: "+homepath+"\033[0m")
+		genConfigCmd.MarkFlagsMutuallyExclusive("pkg", "user")
 	}
+
 	genConfigCmd.Flags().BoolVarP(&isRegen, "regen", "r", false, "re-generate existing config & retain keys")
+	genConfigCmd.MarkFlagsMutuallyExclusive("regen", "force")
 	genConfigCmd.Flags().VarP(&sk, "sk", "s", "a random key is generated if unspecified\n\r")
 	gHiddenFlags = append(gHiddenFlags, "sk")
 	genConfigCmd.Flags().BoolVarP(&isTestEnv, "testenv", "t", false, "use test deployment "+testConf+"\033[0m")
@@ -179,14 +182,6 @@ var genConfigCmd = &cobra.Command{
 		if isStdout {
 			isRegen = false
 		}
-		//--force will delete a config, which excludes --regen
-		if (isForce) && (isRegen) {
-			log.Fatal("Use of mutually exclusive flags: -f --force cannot override -r --regen")
-		}
-		// these flags overwrite each other
-		if (isUsrEnv) && (isPkgEnv) {
-			log.Fatal("Use of mutually exclusive flags: -u --user and -p --pkg")
-		}
 		//enable local hypervisor by default for user
 		if isUsrEnv {
 			isHypervisor = true

go.mod

@@ -21,7 +21,7 @@ require (
 	github.com/sirupsen/logrus v1.8.1
 	github.com/skycoin/skycoin v0.27.1
 	github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8
-	github.com/spf13/cobra v1.4.0
+	github.com/spf13/cobra v1.5.0
 	github.com/stretchr/testify v1.8.3
 	github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635
 	github.com/templexxx/cpufeat v0.0.0-20180724012125-cef66df7f161 // indirect

go.sum

@@ -63,6 +63,7 @@ github.com/containerd/console v1.0.3 h1:lIr7SlA5PxZyMV30bDW0MGbiOPXwc63yRuCP0ARu
 github.com/containerd/console v1.0.3/go.mod h1:7LqA/THxQ86k76b8c/EMSiaJ3h1eZkMkXar0TQ1gf3U=
 github.com/coreos/go-systemd v0.0.0-20181012123002-c6f51f82210d/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/cpuguy83/go-md2man/v2 v2.0.1/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/creack/pty v1.1.15 h1:cKRCLMj3Ddm54bKSpemfQ8AtYFBhAI2MPmdys22fBdc=
 github.com/creack/pty v1.1.15/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -330,8 +331,9 @@ github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8 h1:TG/diQgUe0pntT/2D
 github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8/go.mod h1:P5HUIBuIWKbyjl083/loAegFkfbFNx5i2qEP4CNbm7E=
 github.com/sourcegraph/annotate v0.0.0-20160123013949-f4cad6c6324d/go.mod h1:UdhH50NIW0fCiwBSr0co2m7BnFLdv4fQTgdqdJTHFeE=
 github.com/sourcegraph/syntaxhighlight v0.0.0-20170531221838-bd320f5d308e/go.mod h1:HuIsMU8RRBOtsCgI77wP899iHVBQpCmg4ErYMZB+2IA=
-github.com/spf13/cobra v1.4.0 h1:y+wJpx64xcgO1V+RcnwW0LEHxTKRi2ZDPSBjWnrg88Q=
 github.com/spf13/cobra v1.4.0/go.mod h1:Wo4iy3BUC+X2Fybo0PDqwJIv3dNRiZLHQymsfxlB84g=
+github.com/spf13/cobra v1.5.0 h1:X+jTBEBqF0bHN+9cSMgmfuvv2VHJ9ezmFNf9Y/XstYU=
+github.com/spf13/cobra v1.5.0/go.mod h1:dWXEIy2H428czQCjInthrTRUg7yKbok+2Qi/yBIJoUM=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=