fix: prebuilt_etc_xml

Since aosp/872653 and aosp/904233 landed, prebuilt_etc_xml has been broken.
aosp/872653: Enable arch variant properties in prebuilt_etc.
aosp/904233: Add a prebuilt module type for usr/share.

This change fixes
1) pass baseDir "etc" to initialize PrebuiltEtc struct
2) change "multlib" argument to MultilibFirst to reflect aosp/872653

Bug: 138082739
Test: m com.google.vr.platform.xml && see if it is installed in /system/etc
Change-Id: I4802107fd8ccf28a1170d7d165700c92df32e341

android/prebuilt_etc.go

@@ -91,6 +91,10 @@ func (p *PrebuiltEtc) SourceFilePath(ctx ModuleContext) Path {
 	return PathForModuleSrc(ctx, String(p.properties.Src))
 }
 
+func (p *PrebuiltEtc) InstallDirPath() OutputPath {
+	return p.installDirPath
+}
+
 // This allows other derivative modules (e.g. prebuilt_etc_xml) to perform
 // additional steps (like validating the src) before the file is installed.
 func (p *PrebuiltEtc) SetAdditionalDependencies(paths Paths) {
@@ -165,15 +169,16 @@ func (p *PrebuiltEtc) AndroidMkEntries() AndroidMkEntries {
 	}
 }
 
-func InitPrebuiltEtcModule(p *PrebuiltEtc) {
+func InitPrebuiltEtcModule(p *PrebuiltEtc, dirBase string) {
+	p.installDirBase = dirBase
 	p.AddProperties(&p.properties)
 }
 
 // prebuilt_etc is for a prebuilt artifact that is installed in
 // <partition>/etc/<sub_dir> directory.
 func PrebuiltEtcFactory() Module {
-	module := &PrebuiltEtc{installDirBase: "etc"}
-	InitPrebuiltEtcModule(module)
+	module := &PrebuiltEtc{}
+	InitPrebuiltEtcModule(module, "etc")
 	// This module is device-only
 	InitAndroidArchModule(module, DeviceSupported, MultilibFirst)
 	return module
@@ -182,8 +187,8 @@ func PrebuiltEtcFactory() Module {
 // prebuilt_etc_host is for a host prebuilt artifact that is installed in
 // $(HOST_OUT)/etc/<sub_dir> directory.
 func PrebuiltEtcHostFactory() Module {
-	module := &PrebuiltEtc{installDirBase: "etc"}
-	InitPrebuiltEtcModule(module)
+	module := &PrebuiltEtc{}
+	InitPrebuiltEtcModule(module, "etc")
 	// This module is host-only
 	InitAndroidArchModule(module, HostSupported, MultilibCommon)
 	return module
@@ -192,8 +197,8 @@ func PrebuiltEtcHostFactory() Module {
 // prebuilt_usr_share is for a prebuilt artifact that is installed in
 // <partition>/usr/share/<sub_dir> directory.
 func PrebuiltUserShareFactory() Module {
-	module := &PrebuiltEtc{installDirBase: "usr/share"}
-	InitPrebuiltEtcModule(module)
+	module := &PrebuiltEtc{}
+	InitPrebuiltEtcModule(module, "usr/share")
 	// This module is device-only
 	InitAndroidArchModule(module, DeviceSupported, MultilibFirst)
 	return module
@@ -202,8 +207,8 @@ func PrebuiltUserShareFactory() Module {
 // prebuild_usr_share_host is for a host prebuilt artifact that is installed in
 // $(HOST_OUT)/usr/share/<sub_dir> directory.
 func PrebuiltUserShareHostFactory() Module {
-	module := &PrebuiltEtc{installDirBase: "usr/share"}
-	InitPrebuiltEtcModule(module)
+	module := &PrebuiltEtc{}
+	InitPrebuiltEtcModule(module, "usr/share")
 	// This module is host-only
 	InitAndroidArchModule(module, HostSupported, MultilibCommon)
 	return module
@@ -254,8 +259,8 @@ func prebuiltEtcMutator(mctx BottomUpMutatorContext) {
 
 // prebuilt_font installs a font in <partition>/fonts directory.
 func PrebuiltFontFactory() Module {
-	module := &PrebuiltEtc{installDirBase: "fonts"}
-	InitPrebuiltEtcModule(module)
+	module := &PrebuiltEtc{}
+	InitPrebuiltEtcModule(module, "fonts")
 	// This module is device-only
 	InitAndroidArchModule(module, DeviceSupported, MultilibFirst)
 	return module
@@ -265,8 +270,9 @@ func PrebuiltFontFactory() Module {
 // If soc_specific property is set to true, the firmware file is installed to the vendor <partition>/firmware
 // directory for vendor image.
 func PrebuiltFirmwareFactory() Module {
-	module := &PrebuiltEtc{installDirBase: "etc/firmware", socInstallDirBase: "firmware"}
-	InitPrebuiltEtcModule(module)
+	module := &PrebuiltEtc{}
+	module.socInstallDirBase = "firmware"
+	InitPrebuiltEtcModule(module, "etc/firmware")
 	// This module is device-only
 	InitAndroidArchModule(module, DeviceSupported, MultilibFirst)
 	return module

xml/xml.go

@@ -71,10 +71,6 @@ func (p *prebuiltEtcXml) timestampFilePath(ctx android.ModuleContext) android.Wr
 	return android.PathForModuleOut(ctx, p.PrebuiltEtc.SourceFilePath(ctx).Base()+"-timestamp")
 }
 
-func (p *prebuiltEtcXml) DepsMutator(ctx android.BottomUpMutatorContext) {
-	p.PrebuiltEtc.DepsMutator(ctx)
-}
-
 func (p *prebuiltEtcXml) GenerateAndroidBuildActions(ctx android.ModuleContext) {
 	p.PrebuiltEtc.GenerateAndroidBuildActions(ctx)
 
@@ -125,9 +121,8 @@ func (p *prebuiltEtcXml) GenerateAndroidBuildActions(ctx android.ModuleContext)
 func PrebuiltEtcXmlFactory() android.Module {
 	module := &prebuiltEtcXml{}
 	module.AddProperties(&module.properties)
-
-	android.InitPrebuiltEtcModule(&module.PrebuiltEtc)
+	android.InitPrebuiltEtcModule(&module.PrebuiltEtc, "etc")
 	// This module is device-only
-	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
+	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibFirst)
 	return module
 }

xml/xml_test.go

@@ -34,6 +34,7 @@ func testXml(t *testing.T, bp string) *android.TestContext {
 		"foo.dtd":    nil,
 		"bar.xml":    nil,
 		"bar.xsd":    nil,
+		"baz.xml":    nil,
 	}
 	ctx.MockFileSystem(mockFiles)
 	_, errs := ctx.ParseFileList(".", []string{"Android.bp"})
@@ -59,6 +60,13 @@ func teardown(buildDir string) {
 	os.RemoveAll(buildDir)
 }
 
+func assertEqual(t *testing.T, name, expected, actual string) {
+	t.Helper()
+	if expected != actual {
+		t.Errorf(name+" expected %q != got %q", expected, actual)
+	}
+}
+
 // Minimal test
 func TestPrebuiltEtcXml(t *testing.T) {
 	ctx := testXml(t, `
@@ -72,15 +80,28 @@ func TestPrebuiltEtcXml(t *testing.T) {
 			src: "bar.xml",
 			schema: "bar.xsd",
 		}
+		prebuilt_etc_xml {
+			name: "baz.xml",
+			src: "baz.xml",
+		}
 	`)
 
-	xmllint := ctx.ModuleForTests("foo.xml", "android_common").Rule("xmllint")
-	input := xmllint.Input.String()
-	if input != "foo.xml" {
-		t.Errorf("input expected %q != got %q", "foo.xml", input)
+	for _, tc := range []struct {
+		rule, input, schemaType, schema string
+	}{
+		{rule: "xmllint-dtd", input: "foo.xml", schemaType: "dtd", schema: "foo.dtd"},
+		{rule: "xmllint-xsd", input: "bar.xml", schemaType: "xsd", schema: "bar.xsd"},
+		{rule: "xmllint-minimal", input: "baz.xml"},
+	} {
+		t.Run(tc.schemaType, func(t *testing.T) {
+			rule := ctx.ModuleForTests(tc.input, "android_arm64_armv8-a").Rule(tc.rule)
+			assertEqual(t, "input", tc.input, rule.Input.String())
+			if tc.schemaType != "" {
+				assertEqual(t, "schema", tc.schema, rule.Args[tc.schemaType])
 			}
-	schema := xmllint.Args["dtd"]
-	if schema != "foo.dtd" {
-		t.Errorf("dtd expected %q != got %q", "foo.dtdl", schema)
+		})
 	}
+
+	m := ctx.ModuleForTests("foo.xml", "android_arm64_armv8-a").Module().(*prebuiltEtcXml)
+	assertEqual(t, "installDir", "target/product/test_device/system/etc", m.InstallDirPath().RelPathString())
 }