From 0eb24a7041c26bba2061a96a45c6144c075cf3ce Mon Sep 17 00:00:00 2001
From: "Lukacs T. Berki" <lberki@google.com>
Date: Mon, 16 Aug 2021 11:48:07 +0200
Subject: [PATCH] Explain why build.ninja is a non-default output.

Test: Only comment change.
Change-Id: I335670b7f3bed0fe34fdb1d625b6e459146cc192
---
 bootstrap/bootstrap.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/bootstrap/bootstrap.go b/bootstrap/bootstrap.go
index 73ea502..da7f01b 100644
--- a/bootstrap/bootstrap.go
+++ b/bootstrap/bootstrap.go
@@ -761,6 +761,9 @@ func (s *singleton) GenerateBuildActions(ctx blueprint.SingletonContext) {
 					"builder": primaryBuilderFile,
 					"extra":   strings.Join(flags, " "),
 				},
+				// soong_ui explicitly requests what it wants to be build. This is
+				// because the same Ninja file contains instructions to run
+				// soong_build, run bp2build and to generate the JSON module graph.
 				Optional: true,
 			})
 		}