Merge "Delete bazel-related files while bazel is off" into main

ui/build/soong.go

@@ -632,6 +632,10 @@ func runSoong(ctx Context, config Config) {
 
 		if config.BazelBuildEnabled() || config.Bp2Build() {
 			checkEnvironmentFile(ctx, soongBuildEnv, config.UsedEnvFile(bp2buildFilesTag))
+		} else {
+			// Remove bazel files in the event that bazel is disabled for the build.
+			// These files may have been left over from a previous bazel-enabled build.
+			cleanBazelFiles(config)
 		}
 
 		if config.JsonModuleGraph() {
@@ -790,6 +794,18 @@ func loadSoongBuildMetrics(ctx Context, config Config, oldTimestamp time.Time) {
 	}
 }
 
+func cleanBazelFiles(config Config) {
+	files := []string{
+		shared.JoinPath(config.SoongOutDir(), "bp2build"),
+		shared.JoinPath(config.SoongOutDir(), "workspace"),
+		shared.JoinPath(config.SoongOutDir(), bazel.SoongInjectionDirName),
+		shared.JoinPath(config.OutDir(), "bazel")}
+
+	for _, f := range files {
+		os.RemoveAll(f)
+	}
+}
+
 func runMicrofactory(ctx Context, config Config, name string, pkg string, mapping map[string]string) {
 	ctx.BeginTrace(metrics.RunSoong, name)
 	defer ctx.EndTrace()