Remove unused --config option

docs/cmd/kn.md

@@ -13,7 +13,6 @@ Eventing: Manage event subscriptions and channels. Connect up event sources.
 ### Options
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
   -h, --help                help for kn
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```

docs/cmd/kn_completion.md

@@ -20,7 +20,6 @@ kn completion [flags]
 ### Options inherited from parent commands
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```
 

docs/cmd/kn_revision.md

@@ -15,7 +15,6 @@ Revision command group
 ### Options inherited from parent commands
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```
 

docs/cmd/kn_revision_describe.md

@@ -23,7 +23,6 @@ kn revision describe NAME [flags]
 ### Options inherited from parent commands
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```
 

docs/cmd/kn_revision_get.md

@@ -24,7 +24,6 @@ kn revision get [flags]
 ### Options inherited from parent commands
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```
 

docs/cmd/kn_service.md

@@ -15,7 +15,6 @@ Service command group
 ### Options inherited from parent commands
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```
 

docs/cmd/kn_service_create.md

@@ -50,7 +50,6 @@ kn service create NAME --image IMAGE [flags]
 ### Options inherited from parent commands
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```
 

docs/cmd/kn_service_delete.md

@@ -31,7 +31,6 @@ kn service delete NAME [flags]
 ### Options inherited from parent commands
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```
 

docs/cmd/kn_service_describe.md

@@ -23,7 +23,6 @@ kn service describe NAME [flags]
 ### Options inherited from parent commands
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```
 

docs/cmd/kn_service_get.md

@@ -24,7 +24,6 @@ kn service get [flags]
 ### Options inherited from parent commands
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```
 

docs/cmd/kn_service_update.md

@@ -37,7 +37,6 @@ kn service update NAME [flags]
 ### Options inherited from parent commands
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```
 

docs/cmd/kn_version.md

@@ -19,7 +19,6 @@ kn version [flags]
 ### Options inherited from parent commands
 
 ```
-      --config string       config file (default is $HOME/.kn.yaml)
       --kubeconfig string   kubectl config file (default is $HOME/.kube/config)
 ```
 

go.mod

@@ -29,7 +29,7 @@ require (
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
 	github.com/spf13/cobra v0.0.3
 	github.com/spf13/pflag v1.0.3
-	github.com/spf13/viper v1.3.1
+	github.com/spf13/viper v1.3.1 // indirect
 	github.com/stretchr/objx v0.2.0 // indirect
 	golang.org/x/net v0.0.0-20190514140710-3ec191127204 // indirect
 	golang.org/x/oauth2 v0.0.0-20190517181255-950ef44c6e07 // indirect

pkg/kn/core/root.go

@@ -25,7 +25,6 @@ import (
 	"github.com/knative/client/pkg/kn/commands/service"
 	homedir "github.com/mitchellh/go-homedir"
 	"github.com/spf13/cobra"
-	"github.com/spf13/viper"
 	_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
 	_ "k8s.io/client-go/plugin/pkg/client/auth/oidc"
 )
@@ -63,7 +62,6 @@ Eventing: Manage event subscriptions and channels. Connect up event sources.`,
 	if p.Output != nil {
 		rootCmd.SetOutput(p.Output)
 	}
-	rootCmd.PersistentFlags().StringVar(&commands.CfgFile, "config", "", "config file (default is $HOME/.kn.yaml)")
 	rootCmd.PersistentFlags().StringVar(&commands.KubeCfgFile, "kubeconfig", "", "kubectl config file (default is $HOME/.kube/config)")
 
 	rootCmd.AddCommand(service.NewServiceCommand(p))
@@ -77,9 +75,7 @@ Eventing: Manage event subscriptions and channels. Connect up event sources.`,
 }
 
 func InitializeConfig() {
-	cobra.OnInitialize(initConfig)
 	cobra.OnInitialize(initKubeConfig)
-
 }
 
 func initKubeConfig() {
@@ -97,29 +93,3 @@ func initKubeConfig() {
 		commands.KubeCfgFile = filepath.Join(home, ".kube", "config")
 	}
 }
-
-// initConfig reads in config file and ENV variables if set.
-func initConfig() {
-	if commands.CfgFile != "" {
-		// Use config file from the flag.
-		viper.SetConfigFile(commands.CfgFile)
-	} else {
-		// Find home directory.
-		home, err := homedir.Dir()
-		if err != nil {
-			fmt.Fprintln(os.Stderr, err)
-			os.Exit(1)
-		}
-
-		// Search config in home directory with name ".kn" (without extension).
-		viper.AddConfigPath(home)
-		viper.SetConfigName(".kn")
-	}
-
-	viper.AutomaticEnv() // read in environment variables that match
-
-	// If a config file is found, read it in.
-	if err := viper.ReadInConfig(); err == nil {
-		fmt.Fprintln(os.Stderr, "Using config file:", viper.ConfigFileUsed())
-	}
-}