Removed -4 and -6 from CLI (these are still usable in the lib)

README.md

@@ -60,11 +60,9 @@ hostess may be configured via environment variables.
 
 ## IPv4 and IPv6
 
-Your hosts file _may_ contain overlapping entries where the same hostname points
-to both an IPv4 and IPv6 IP. In this case, hostess commands will apply to both
-entries. Typically you won't have this kind of overlap and the default behavior
-is OK. However, if you need to be more granular you can use `-4` or `-6` to
-limit operations to entries associated with that type of IP.
+It's possible for your hosts file to include overlapping entries for IPv4 and
+IPv6. This is an uncommon case so the CLI ignores this distinction. The hostess
+library includes logic that differentiates between these cases.
 
 ## Contributing
 

commands.go

@@ -11,13 +11,7 @@ import (
 	"github.com/cbednarski/hostess/hostess"
 )
 
-const (
-	IPv4 = 1 << iota
-	IPv6 = 1 << iota
-)
-
 type Options struct {
-	IPVersion int
 	Preview   bool
 }
 

main.go

@@ -33,8 +33,6 @@ Commands
 Flags
 
     -n will preview changes but not rewrite your hosts file
-    -4 limit changes to IPv4 entries
-    -6 limit changes to IPv6 entries
 
 Configuration
 
@@ -67,8 +65,6 @@ func CommandUsage(command string) error {
 
 func wrappedMain(args []string) error {
 	cli := flag.NewFlagSet(args[0], flag.ExitOnError)
-	ipv4 := cli.Bool("4", false, "IPv4")
-	ipv6 := cli.Bool("6", false, "IPv6")
 	preview := cli.Bool("n", false, "preview")
 	cli.Usage = func() {
 		fmt.Printf(help, hostess.GetHostsPath())
@@ -79,15 +75,8 @@ func wrappedMain(args []string) error {
 	}
 
 	options := &Options{
-		IPVersion: 0,
 		Preview:   *preview,
 	}
-	if *ipv4 {
-		options.IPVersion = options.IPVersion | IPv4
-	}
-	if *ipv6 {
-		options.IPVersion = options.IPVersion | IPv6
-	}
 
 	command := cli.Arg(0)
 	switch command {