Cut the multiproduct_kati -> soong-ui-build dep.

This is done by moving SetupSignals() to its own little package.

There are a number of tiny little utility packages for soong_ui we might
be better of merging, but that's for another change (maybe)

Test: Presubmits.
Change-Id: I07b0ca98bfb8884ef4223d665e632183b9896a0d

cmd/multiproduct_kati/Android.bp

@@ -19,8 +19,8 @@ package {
 blueprint_go_binary {
     name: "multiproduct_kati",
     deps: [
-        "soong-ui-build",
         "soong-ui-logger",
+        "soong-ui-signal",
         "soong-ui-terminal",
         "soong-ui-tracer",
         "soong-zip",

cmd/multiproduct_kati/main.go

@@ -31,8 +31,8 @@ import (
 	"syscall"
 	"time"
 
-	"android/soong/ui/build"
 	"android/soong/ui/logger"
+	"android/soong/ui/signal"
 	"android/soong/ui/status"
 	"android/soong/ui/terminal"
 	"android/soong/ui/tracer"
@@ -127,12 +127,12 @@ func copyFile(from, to string) error {
 }
 
 type mpContext struct {
-	Context context.Context
 	Logger logger.Logger
 	Status status.ToolStatus
-	Tracer  tracer.Tracer
 
-	LogsDir string
+	SoongUi     string
+	MainOutDir  string
+	MainLogsDir string
 }
 
 func detectTotalRAM() uint64 {
@@ -179,7 +179,7 @@ func main() {
 
 	flag.Parse()
 
-	ctx, cancel := context.WithCancel(context.Background())
+	_, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
 	trace := tracer.New(log)
@@ -192,7 +192,7 @@ func main() {
 	var failures failureCount
 	stat.AddOutput(&failures)
 
-	build.SetupSignals(log, cancel, func() {
+	signal.SetupSignals(log, cancel, func() {
 		trace.Close()
 		log.Cleanup()
 		stat.Finish()
@@ -310,12 +310,11 @@ func main() {
 	s.SetTotalActions(len(finalProductsList))
 
 	mpCtx := &mpContext{
-		Context: ctx,
 		Logger:      log,
 		Status:      s,
-		Tracer:  trace,
-
-		LogsDir: logsDir,
+		SoongUi:     soongUi,
+		MainOutDir:  outputDir,
+		MainLogsDir: logsDir,
 	}
 
 	products := make(chan string, len(productsList))
@@ -337,7 +336,7 @@ func main() {
 					if product == "" {
 						return
 					}
-					runSoongUiForProduct(mpCtx, product, soongUi, outputDir)
+					runSoongUiForProduct(mpCtx, product)
 				}
 			}
 		}()
@@ -391,10 +390,10 @@ func cleanupAfterProduct(outDir, productZip string) {
 	}
 }
 
-func runSoongUiForProduct(mpctx *mpContext, product, soongUi, mainOutDir string) {
-	outDir := filepath.Join(mainOutDir, product)
-	logsDir := filepath.Join(mpctx.LogsDir, product)
-	productZip := filepath.Join(mainOutDir, product+".zip")
+func runSoongUiForProduct(mpctx *mpContext, product string) {
+	outDir := filepath.Join(mpctx.MainOutDir, product)
+	logsDir := filepath.Join(mpctx.MainLogsDir, product)
+	productZip := filepath.Join(mpctx.MainOutDir, product+".zip")
 	consoleLogPath := filepath.Join(logsDir, "std.log")
 
 	if err := os.MkdirAll(outDir, 0777); err != nil {
@@ -429,7 +428,7 @@ func runSoongUiForProduct(mpctx *mpContext, product, soongUi, mainOutDir string)
 		args = append(args, "dist")
 	}
 
-	cmd := exec.Command(soongUi, args...)
+	cmd := exec.Command(mpctx.SoongUi, args...)
 	cmd.Stdout = consoleLogWriter
 	cmd.Stderr = consoleLogWriter
 	cmd.Env = append(os.Environ(),

cmd/soong_ui/Android.bp

@@ -20,6 +20,7 @@ blueprint_go_binary {
     name: "soong_ui",
     deps: [
         "soong-ui-build",
+        "soong-ui-signal",
         "soong-ui-logger",
         "soong-ui-terminal",
         "soong-ui-tracer",

cmd/soong_ui/main.go

@@ -30,6 +30,7 @@ import (
 	"android/soong/ui/build"
 	"android/soong/ui/logger"
 	"android/soong/ui/metrics"
+	"android/soong/ui/signal"
 	"android/soong/ui/status"
 	"android/soong/ui/terminal"
 	"android/soong/ui/tracer"
@@ -190,7 +191,7 @@ func main() {
 	stat.AddOutput(trace.StatusTracer())
 
 	// Set up a cleanup procedure in case the normal termination process doesn't work.
-	build.SetupSignals(log, cancel, func() {
+	signal.SetupSignals(log, cancel, func() {
 		trace.Close()
 		log.Cleanup()
 		stat.Finish()

cuj/Android.bp

@@ -7,6 +7,7 @@ blueprint_go_binary {
     deps: [
         "soong-ui-build",
         "soong-ui-logger",
+        "soong-ui-signal",
         "soong-ui-terminal",
         "soong-ui-tracer",
     ],

cuj/cuj.go

@@ -27,6 +27,7 @@ import (
 	"android/soong/ui/build"
 	"android/soong/ui/logger"
 	"android/soong/ui/metrics"
+	"android/soong/ui/signal"
 	"android/soong/ui/status"
 	"android/soong/ui/terminal"
 	"android/soong/ui/tracer"
@@ -65,7 +66,7 @@ func (t *Test) Run(logsDir string) {
 	stat.AddOutput(output)
 	stat.AddOutput(trace.StatusTracer())
 
-	build.SetupSignals(log, cancel, func() {
+	signal.SetupSignals(log, cancel, func() {
 		trace.Close()
 		log.Cleanup()
 		stat.Finish()

ui/build/Android.bp

@@ -61,7 +61,6 @@ bootstrap_go_package {
         "proc_sync.go",
         "rbe.go",
         "sandbox_config.go",
-        "signal.go",
         "soong.go",
         "test_build.go",
         "upload.go",

ui/signal/Android.bp

@@ -0,0 +1,28 @@
+// Copyright 2021 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+bootstrap_go_package {
+    name: "soong-ui-signal",
+    pkgPath: "android/soong/ui/signal",
+    srcs: [
+        "signal.go",
+    ],
+    deps: [
+        "soong-ui-logger",
+    ],
+}

ui/signal/signal.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package build
+package signal
 
 import (
 	"os"