Minor CLI improvements

- Show Emojis on non-Windows platforms, instead of just macOS

- Change help text for `pulumi logs` to clarify the logs are specific
  to a stack, not a project

- Display stack name when showing logs

- Have preamble text show to users for engine operations read a little
  nicer

cmd/logs.go

@@ -29,7 +29,7 @@ func newLogsCmd() *cobra.Command {
 
 	logsCmd := &cobra.Command{
 		Use:   "logs",
-		Short: "Show aggregated logs for a project",
+		Short: "Show aggregated logs for a stack",
 		Args:  cmdutil.NoArgs,
 		Run: cmdutil.RunFunc(func(cmd *cobra.Command, args []string) error {
 			s, err := requireStack(stack, false)
@@ -48,7 +48,8 @@ func newLogsCmd() *cobra.Command {
 			}
 
 			fmt.Printf(
-				colors.ColorizeText(colors.BrightMagenta+"Collecting logs since %s.\n\n"+colors.Reset),
+				colors.ColorizeText(colors.BrightMagenta+"Collecting logs for stack %s since %s.\n\n"+colors.Reset),
+				s.Name().String(),
 				startTime.Format(timeFormat),
 			)
 

pkg/backend/cloud/backend.go

@@ -473,24 +473,28 @@ func (b *cloudBackend) GetStackCrypter(stackRef backend.StackReference) (config.
 	return &cloudCrypter{backend: b, stack: stack}, nil
 }
 
+var (
+	updateTextMap = map[string]struct {
+		previewText string
+		text        string
+	}{
+		string(client.UpdateKindUpdate):  {"update of", "Updating"},
+		string(client.UpdateKindRefresh): {"refresh of", "Refreshing"},
+		string(client.UpdateKindDestroy): {"destroy of", "Destroying"},
+		string(client.UpdateKindImport):  {"import to", "Importing into"},
+	}
+)
+
 func getActionLabel(key string, dryRun bool) string {
+	v := updateTextMap[key]
+	contract.Assert(v.previewText != "")
+	contract.Assert(v.text != "")
+
 	if dryRun {
-		return "Previewing"
+		return "Previewing " + v.previewText
 	}
 
-	switch key {
-	case string(client.UpdateKindUpdate):
-		return "Updating"
-	case string(client.UpdateKindRefresh):
-		return "Refreshing"
-	case string(client.UpdateKindDestroy):
-		return "Destroying"
-	case string(client.UpdateKindImport):
-		return "Importing"
-	}
-
-	contract.Failf("Should not get here.")
-	return ""
+	return v.text
 }
 
 type response string

pkg/util/cmdutil/console.go

@@ -15,7 +15,7 @@ import (
 )
 
 // Emoji controls whether emojis will by default be printed in the output.
-var Emoji = (runtime.GOOS == "darwin")
+var Emoji = (runtime.GOOS != "windows")
 
 // EmojiOr returns the emoji string e if emojis are enabled, or the string or if emojis are disabled.
 func EmojiOr(e, or string) string {