AndroidMkEntries minor refactoring.

This includes a few changes that make AndroidMkEntries more resemble
AndroidMkData, especially in terms of how extra entries are added.
Most importantly it can now have multiple custom functions.

Test: Soong tests
Change-Id: Ibf9102624d16d0c1c9894a2794fc7c797bb34c9a

3 files changed, 35 insertions, 28 deletions

diff --git a/android/androidmk.go b/android/androidmk.go
index 89dfd0ea..4a968f5e 100644
--- a/android/androidmk.go
+++ b/android/androidmk.go
@@ -75,12 +75,14 @@ type AndroidMkEntries struct {
 	header bytes.Buffer
 	footer bytes.Buffer
 
-	AddCustomEntries func(name, prefix, moduleDir string, entries *AndroidMkEntries)
+	ExtraEntries []AndroidMkExtraEntriesFunc
 
 	EntryMap   map[string][]string
 	entryOrder []string
 }
 
+type AndroidMkExtraEntriesFunc func(entries *AndroidMkEntries)
+
 func (a *AndroidMkEntries) SetString(name, value string) {
 	if _, ok := a.EntryMap[name]; !ok {
 		a.entryOrder = append(a.entryOrder, name)
@@ -228,9 +230,8 @@ func (a *AndroidMkEntries) fillInEntries(config Config, bpPath string, mod bluep
 			prefix = "2ND_" + prefix
 		}
 	}
-	blueprintDir := filepath.Dir(bpPath)
-	if a.AddCustomEntries != nil {
-		a.AddCustomEntries(name, prefix, blueprintDir, a)
+	for _, extra := range a.ExtraEntries {
+		extra(a)
 	}
 
 	// Write to footer.
diff --git a/android/prebuilt_etc.go b/android/prebuilt_etc.go
index bec24c77..f35e3c76 100644
--- a/android/prebuilt_etc.go
+++ b/android/prebuilt_etc.go
@@ -140,16 +140,18 @@ func (p *PrebuiltEtc) AndroidMkEntries() AndroidMkEntries {
 		Class:      "ETC",
 		SubName:    nameSuffix,
 		OutputFile: OptionalPathForPath(p.outputFilePath),
-		AddCustomEntries: func(name, prefix, moduleDir string, entries *AndroidMkEntries) {
-			entries.SetString("LOCAL_MODULE_TAGS", "optional")
-			entries.SetString("LOCAL_MODULE_PATH", "$(OUT_DIR)/"+p.installDirPath.RelPathString())
-			entries.SetString("LOCAL_INSTALLED_MODULE_STEM", p.outputFilePath.Base())
-			entries.SetString("LOCAL_UNINSTALLABLE_MODULE", strconv.FormatBool(!p.Installable()))
-			if p.additionalDependencies != nil {
-				for _, path := range *p.additionalDependencies {
-					entries.SetString("LOCAL_ADDITIONAL_DEPENDENCIES", path.String())
+		ExtraEntries: []AndroidMkExtraEntriesFunc{
+			func(entries *AndroidMkEntries) {
+				entries.SetString("LOCAL_MODULE_TAGS", "optional")
+				entries.SetString("LOCAL_MODULE_PATH", "$(OUT_DIR)/"+p.installDirPath.RelPathString())
+				entries.SetString("LOCAL_INSTALLED_MODULE_STEM", p.outputFilePath.Base())
+				entries.SetString("LOCAL_UNINSTALLABLE_MODULE", strconv.FormatBool(!p.Installable()))
+				if p.additionalDependencies != nil {
+					for _, path := range *p.additionalDependencies {
+						entries.SetString("LOCAL_ADDITIONAL_DEPENDENCIES", path.String())
+					}
 				}
-			}
+			},
 		},
 	}
 }
diff --git a/android/sh_binary.go b/android/sh_binary.go
index 2855aa04..ba0c8be7 100644
--- a/android/sh_binary.go
+++ b/android/sh_binary.go
@@ -133,8 +133,10 @@ func (s *ShBinary) AndroidMkEntries() AndroidMkEntries {
 		Class:      "EXECUTABLES",
 		OutputFile: OptionalPathForPath(s.outputFilePath),
 		Include:    "$(BUILD_SYSTEM)/soong_cc_prebuilt.mk",
-		AddCustomEntries: func(name, prefix, moduleDir string, entries *AndroidMkEntries) {
-			s.customAndroidMkEntries(entries)
+		ExtraEntries: []AndroidMkExtraEntriesFunc{
+			func(entries *AndroidMkEntries) {
+				s.customAndroidMkEntries(entries)
+			},
 		},
 	}
 }
@@ -156,20 +158,22 @@ func (s *ShTest) AndroidMkEntries() AndroidMkEntries {
 		Class:      "NATIVE_TESTS",
 		OutputFile: OptionalPathForPath(s.outputFilePath),
 		Include:    "$(BUILD_SYSTEM)/soong_cc_prebuilt.mk",
-		AddCustomEntries: func(name, prefix, moduleDir string, entries *AndroidMkEntries) {
-			s.customAndroidMkEntries(entries)
-
-			entries.AddStrings("LOCAL_COMPATIBILITY_SUITE", s.testProperties.Test_suites...)
-			entries.SetString("LOCAL_TEST_CONFIG", String(s.testProperties.Test_config))
-			for _, d := range s.data {
-				rel := d.Rel()
-				path := d.String()
-				if !strings.HasSuffix(path, rel) {
-					panic(fmt.Errorf("path %q does not end with %q", path, rel))
+		ExtraEntries: []AndroidMkExtraEntriesFunc{
+			func(entries *AndroidMkEntries) {
+				s.customAndroidMkEntries(entries)
+
+				entries.AddStrings("LOCAL_COMPATIBILITY_SUITE", s.testProperties.Test_suites...)
+				entries.SetString("LOCAL_TEST_CONFIG", String(s.testProperties.Test_config))
+				for _, d := range s.data {
+					rel := d.Rel()
+					path := d.String()
+					if !strings.HasSuffix(path, rel) {
+						panic(fmt.Errorf("path %q does not end with %q", path, rel))
+					}
+					path = strings.TrimSuffix(path, rel)
+					entries.AddStrings("LOCAL_TEST_DATA", path+":"+rel)
 				}
-				path = strings.TrimSuffix(path, rel)
-				entries.AddStrings("LOCAL_TEST_DATA", path+":"+rel)
-			}
+			},
 		},
 	}
 }