Add prompt config setting and support in CanPrompt

internal/config/config_type.go

@@ -10,7 +10,11 @@ import (
 	"gopkg.in/yaml.v3"
 )
 
-const defaultGitProtocol = "https"
+const (
+	defaultGitProtocol = "https"
+	NeverPrompt        = "never"
+	AutoPrompt         = "auto"
+)
 
 // This interface describes interacting with some persistent configuration for gh.
 type Config interface {
@@ -167,6 +171,15 @@ func NewBlankRoot() *yaml.Node {
 						Kind:  yaml.ScalarNode,
 						Value: "",
 					},
+					{
+						HeadComment: "When to interactively prompt. This is a global config that cannot be overriden by hostname. Supported values: auto, never",
+						Kind:        yaml.ScalarNode,
+						Value:       "prompt",
+					},
+					{
+						Kind:  yaml.ScalarNode,
+						Value: AutoPrompt,
+					},
 					{
 						HeadComment: "Aliases allow you to create nicknames for gh commands",
 						Kind:        yaml.ScalarNode,
@@ -476,6 +489,8 @@ func defaultFor(key string) string {
 	switch key {
 	case "git_protocol":
 		return defaultGitProtocol
+	case "prompt":
+		return AutoPrompt
 	default:
 		return ""
 	}

pkg/iostreams/iostreams.go

@@ -91,6 +91,17 @@ func (s *IOStreams) IsStderrTTY() bool {
 }
 
 func (s *IOStreams) CanPrompt() bool {
+	cfg, err := s.Config()
+	if err == nil {
+		// TODO prompt is a global setting. Is this inconsistency ok? There's not a super strong case to
+		// set prompting by host, but it means we need to be clear about what can and can't be set per
+		// host.
+		prompt, _ := cfg.Get("", "prompt")
+		if prompt == config.NeverPrompt {
+			return false
+		}
+	}
+
 	return s.IsStdinTTY() && s.IsStdoutTTY()
 }