diff --git a/ui/build/dumpvars.go b/ui/build/dumpvars.go
index e6c3f56..fb20d63 100644
--- a/ui/build/dumpvars.go
+++ b/ui/build/dumpvars.go
@@ -15,6 +15,7 @@
 package build
 
 import (
+	"bytes"
 	"fmt"
 	"strings"
 )
@@ -78,6 +79,49 @@
 	return ret, nil
 }
 
+// Variables to print out in the top banner
+var BannerVars = []string{
+	"PLATFORM_VERSION_CODENAME",
+	"PLATFORM_VERSION",
+	"TARGET_PRODUCT",
+	"TARGET_BUILD_VARIANT",
+	"TARGET_BUILD_TYPE",
+	"TARGET_BUILD_APPS",
+	"TARGET_ARCH",
+	"TARGET_ARCH_VARIANT",
+	"TARGET_CPU_VARIANT",
+	"TARGET_2ND_ARCH",
+	"TARGET_2ND_ARCH_VARIANT",
+	"TARGET_2ND_CPU_VARIANT",
+	"HOST_ARCH",
+	"HOST_2ND_ARCH",
+	"HOST_OS",
+	"HOST_OS_EXTRA",
+	"HOST_CROSS_OS",
+	"HOST_CROSS_ARCH",
+	"HOST_CROSS_2ND_ARCH",
+	"HOST_BUILD_TYPE",
+	"BUILD_ID",
+	"OUT_DIR",
+	"AUX_OS_VARIANT_LIST",
+	"TARGET_BUILD_PDK",
+	"PDK_FUSION_PLATFORM_ZIP",
+}
+
+func Banner(make_vars map[string]string) string {
+	b := &bytes.Buffer{}
+
+	fmt.Fprintln(b, "============================================")
+	for _, name := range BannerVars {
+		if make_vars[name] != "" {
+			fmt.Fprintf(b, "%s=%s\n", name, make_vars[name])
+		}
+	}
+	fmt.Fprint(b, "============================================")
+
+	return b.String()
+}
+
 func runMakeProductConfig(ctx Context, config Config) {
 	// Variables to export into the environment of Kati/Ninja
 	exportEnvVars := []string{
@@ -99,35 +143,6 @@
 		"CCACHE_CPP2",
 	}
 
-	// Variables to print out in the top banner
-	bannerVars := []string{
-		"PLATFORM_VERSION_CODENAME",
-		"PLATFORM_VERSION",
-		"TARGET_PRODUCT",
-		"TARGET_BUILD_VARIANT",
-		"TARGET_BUILD_TYPE",
-		"TARGET_BUILD_APPS",
-		"TARGET_ARCH",
-		"TARGET_ARCH_VARIANT",
-		"TARGET_CPU_VARIANT",
-		"TARGET_2ND_ARCH",
-		"TARGET_2ND_ARCH_VARIANT",
-		"TARGET_2ND_CPU_VARIANT",
-		"HOST_ARCH",
-		"HOST_2ND_ARCH",
-		"HOST_OS",
-		"HOST_OS_EXTRA",
-		"HOST_CROSS_OS",
-		"HOST_CROSS_ARCH",
-		"HOST_CROSS_2ND_ARCH",
-		"HOST_BUILD_TYPE",
-		"BUILD_ID",
-		"OUT_DIR",
-		"AUX_OS_VARIANT_LIST",
-		"TARGET_BUILD_PDK",
-		"PDK_FUSION_PLATFORM_ZIP",
-	}
-
 	allVars := append(append([]string{
 		// Used to execute Kati and Ninja
 		"NINJA_GOALS",
@@ -135,7 +150,7 @@
 
 		// To find target/product/<DEVICE>
 		"TARGET_DEVICE",
-	}, exportEnvVars...), bannerVars...)
+	}, exportEnvVars...), BannerVars...)
 
 	make_vars, err := dumpMakeVars(ctx, config, config.Arguments(), allVars, true)
 	if err != nil {
@@ -143,13 +158,7 @@
 	}
 
 	// Print the banner like make does
-	fmt.Fprintln(ctx.Stdout(), "============================================")
-	for _, name := range bannerVars {
-		if make_vars[name] != "" {
-			fmt.Fprintf(ctx.Stdout(), "%s=%s\n", name, make_vars[name])
-		}
-	}
-	fmt.Fprintln(ctx.Stdout(), "============================================")
+	fmt.Fprintln(ctx.Stdout(), Banner(make_vars))
 
 	// Populate the environment
 	env := config.Environment()