Include bazel-status of build in metrics

Currently within metrics we cannot distinguish between Bazel-involved
configurations:
  Bazel as Ninja vs Ninja as Ninja builds
  Bazel mixed builds vs non-mixed builds

Add these to the build configuration in order to distinguish between and
track them independently.

Test: go soong tests
Test: USE_BAZEL_ANALYSIS=1 m nothing and verify out/soong_metrics
Bug: 193672397
Change-Id: I94ce56c1a98a76d929598d9fe3070df16ffa1376
diff --git a/ui/build/config.go b/ui/build/config.go
index 7370627..cd6d549 100644
--- a/ui/build/config.go
+++ b/ui/build/config.go
@@ -345,12 +345,7 @@
 		return
 	}
 
-	b := &smpb.BuildConfig{
-		ForceUseGoma: proto.Bool(config.ForceUseGoma()),
-		UseGoma:      proto.Bool(config.UseGoma()),
-		UseRbe:       proto.Bool(config.UseRBE()),
-	}
-	ctx.Metrics.BuildConfig(b)
+	ctx.Metrics.BuildConfig(buildConfig(config))
 
 	s := &smpb.SystemResourceInfo{
 		TotalPhysicalMemory: proto.Uint64(config.TotalRAM()),
@@ -359,6 +354,16 @@
 	ctx.Metrics.SystemResourceInfo(s)
 }
 
+func buildConfig(config Config) *smpb.BuildConfig {
+	return &smpb.BuildConfig{
+		ForceUseGoma:    proto.Bool(config.ForceUseGoma()),
+		UseGoma:         proto.Bool(config.UseGoma()),
+		UseRbe:          proto.Bool(config.UseRBE()),
+		BazelAsNinja:    proto.Bool(config.UseBazel()),
+		BazelMixedBuild: proto.Bool(config.bazelBuildMode() == mixedBuild),
+	}
+}
+
 // getConfigArgs processes the command arguments based on the build action and creates a set of new
 // arguments to be accepted by Config.
 func getConfigArgs(action BuildAction, dir string, ctx Context, args []string) []string {
diff --git a/ui/build/config_test.go b/ui/build/config_test.go
index 7b14c47..7d4c76b 100644
--- a/ui/build/config_test.go
+++ b/ui/build/config_test.go
@@ -26,7 +26,10 @@
 	"testing"
 
 	"android/soong/ui/logger"
+	smpb "android/soong/ui/metrics/metrics_proto"
 	"android/soong/ui/status"
+
+	"github.com/golang/protobuf/proto"
 )
 
 func testContext() Context {
@@ -995,3 +998,111 @@
 		})
 	}
 }
+
+func TestBuildConfig(t *testing.T) {
+	tests := []struct {
+		name                string
+		environ             Environment
+		useBazel            bool
+		expectedBuildConfig *smpb.BuildConfig
+	}{
+		{
+			name:    "none set",
+			environ: Environment{},
+			expectedBuildConfig: &smpb.BuildConfig{
+				ForceUseGoma:    proto.Bool(false),
+				UseGoma:         proto.Bool(false),
+				UseRbe:          proto.Bool(false),
+				BazelAsNinja:    proto.Bool(false),
+				BazelMixedBuild: proto.Bool(false),
+			},
+		},
+		{
+			name:    "force use goma",
+			environ: Environment{"FORCE_USE_GOMA=1"},
+			expectedBuildConfig: &smpb.BuildConfig{
+				ForceUseGoma:    proto.Bool(true),
+				UseGoma:         proto.Bool(false),
+				UseRbe:          proto.Bool(false),
+				BazelAsNinja:    proto.Bool(false),
+				BazelMixedBuild: proto.Bool(false),
+			},
+		},
+		{
+			name:    "use goma",
+			environ: Environment{"USE_GOMA=1"},
+			expectedBuildConfig: &smpb.BuildConfig{
+				ForceUseGoma:    proto.Bool(false),
+				UseGoma:         proto.Bool(true),
+				UseRbe:          proto.Bool(false),
+				BazelAsNinja:    proto.Bool(false),
+				BazelMixedBuild: proto.Bool(false),
+			},
+		},
+		{
+			name:    "use rbe",
+			environ: Environment{"USE_RBE=1"},
+			expectedBuildConfig: &smpb.BuildConfig{
+				ForceUseGoma:    proto.Bool(false),
+				UseGoma:         proto.Bool(false),
+				UseRbe:          proto.Bool(true),
+				BazelAsNinja:    proto.Bool(false),
+				BazelMixedBuild: proto.Bool(false),
+			},
+		},
+		{
+			name:     "use bazel as ninja",
+			environ:  Environment{},
+			useBazel: true,
+			expectedBuildConfig: &smpb.BuildConfig{
+				ForceUseGoma:    proto.Bool(false),
+				UseGoma:         proto.Bool(false),
+				UseRbe:          proto.Bool(false),
+				BazelAsNinja:    proto.Bool(true),
+				BazelMixedBuild: proto.Bool(false),
+			},
+		},
+		{
+			name:    "bazel mixed build",
+			environ: Environment{"USE_BAZEL_ANALYSIS=1"},
+			expectedBuildConfig: &smpb.BuildConfig{
+				ForceUseGoma:    proto.Bool(false),
+				UseGoma:         proto.Bool(false),
+				UseRbe:          proto.Bool(false),
+				BazelAsNinja:    proto.Bool(false),
+				BazelMixedBuild: proto.Bool(true),
+			},
+		},
+		{
+			name: "all set",
+			environ: Environment{
+				"FORCE_USE_GOMA=1",
+				"USE_GOMA=1",
+				"USE_RBE=1",
+				"USE_BAZEL_ANALYSIS=1",
+			},
+			useBazel: true,
+			expectedBuildConfig: &smpb.BuildConfig{
+				ForceUseGoma:    proto.Bool(true),
+				UseGoma:         proto.Bool(true),
+				UseRbe:          proto.Bool(true),
+				BazelAsNinja:    proto.Bool(true),
+				BazelMixedBuild: proto.Bool(true),
+			},
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			c := &configImpl{
+				environ:  &tc.environ,
+				useBazel: tc.useBazel,
+			}
+			config := Config{c}
+			actualBuildConfig := buildConfig(config)
+			if expected := tc.expectedBuildConfig; !proto.Equal(expected, actualBuildConfig) {
+				t.Errorf("Expected build config != actual build config: %#v != %#v", *expected, *actualBuildConfig)
+			}
+		})
+	}
+}
diff --git a/ui/metrics/metrics_proto/metrics.pb.go b/ui/metrics/metrics_proto/metrics.pb.go
index fc2cfa4..1063337 100644
--- a/ui/metrics/metrics_proto/metrics.pb.go
+++ b/ui/metrics/metrics_proto/metrics.pb.go
@@ -433,9 +433,14 @@
 }
 
 type BuildConfig struct {
-	UseGoma              *bool    `protobuf:"varint,1,opt,name=use_goma,json=useGoma" json:"use_goma,omitempty"`
-	UseRbe               *bool    `protobuf:"varint,2,opt,name=use_rbe,json=useRbe" json:"use_rbe,omitempty"`
-	ForceUseGoma         *bool    `protobuf:"varint,3,opt,name=force_use_goma,json=forceUseGoma" json:"force_use_goma,omitempty"`
+	UseGoma      *bool `protobuf:"varint,1,opt,name=use_goma,json=useGoma" json:"use_goma,omitempty"`
+	UseRbe       *bool `protobuf:"varint,2,opt,name=use_rbe,json=useRbe" json:"use_rbe,omitempty"`
+	ForceUseGoma *bool `protobuf:"varint,3,opt,name=force_use_goma,json=forceUseGoma" json:"force_use_goma,omitempty"`
+	// Whether the Bazel is acting as the Ninja executor for this build.
+	BazelAsNinja *bool `protobuf:"varint,4,opt,name=bazel_as_ninja,json=bazelAsNinja" json:"bazel_as_ninja,omitempty"`
+	// Whether build is occurring in a mixed build mode, where Bazel maintains the
+	// definition and build of some modules in cooperation with Soong.
+	BazelMixedBuild      *bool    `protobuf:"varint,5,opt,name=bazel_mixed_build,json=bazelMixedBuild" json:"bazel_mixed_build,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
 	XXX_sizecache        int32    `json:"-"`
@@ -487,6 +492,20 @@
 	return false
 }
 
+func (m *BuildConfig) GetBazelAsNinja() bool {
+	if m != nil && m.BazelAsNinja != nil {
+		return *m.BazelAsNinja
+	}
+	return false
+}
+
+func (m *BuildConfig) GetBazelMixedBuild() bool {
+	if m != nil && m.BazelMixedBuild != nil {
+		return *m.BazelMixedBuild
+	}
+	return false
+}
+
 type SystemResourceInfo struct {
 	// The total physical memory in bytes.
 	TotalPhysicalMemory *uint64 `protobuf:"varint,1,opt,name=total_physical_memory,json=totalPhysicalMemory" json:"total_physical_memory,omitempty"`
@@ -990,92 +1009,94 @@
 }
 
 var fileDescriptor_6039342a2ba47b72 = []byte{
-	// 1380 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x9c, 0x57, 0xef, 0x52, 0x1b, 0x37,
-	0x10, 0x8f, 0xc1, 0x60, 0x7b, 0xfd, 0x07, 0x23, 0xa0, 0x5c, 0x48, 0xd2, 0x52, 0xb7, 0x49, 0x99,
-	0x4e, 0x43, 0x32, 0x34, 0xc3, 0x64, 0x98, 0x4c, 0xa7, 0xe0, 0xd0, 0x34, 0x65, 0xc0, 0x8c, 0x08,
-	0x69, 0xda, 0x7e, 0x50, 0xe5, 0xb3, 0x0c, 0x97, 0xdc, 0x9d, 0x6e, 0x24, 0x1d, 0xc5, 0x79, 0xb3,
-	0x7e, 0xee, 0x4b, 0xf4, 0x05, 0xfa, 0x04, 0x7d, 0x81, 0x8e, 0x56, 0x77, 0xe6, 0x20, 0x6e, 0xc2,
-	0xe4, 0xdb, 0xe9, 0xb7, 0xbf, 0xdf, 0x6a, 0xb5, 0xd2, 0xee, 0xda, 0xd0, 0x8c, 0x84, 0x51, 0x81,
-	0xaf, 0xd7, 0x13, 0x25, 0x8d, 0x24, 0x0b, 0x5a, 0xca, 0xf8, 0x84, 0xf5, 0xd3, 0x20, 0x1c, 0xb0,
-	0xcc, 0xd4, 0xf9, 0xbb, 0x01, 0xf5, 0x7d, 0xf7, 0xbd, 0xc3, 0xb5, 0x20, 0x0f, 0x61, 0xd1, 0x11,
-	0x06, 0xdc, 0x08, 0x66, 0x82, 0x48, 0x68, 0xc3, 0xa3, 0xc4, 0x2b, 0xad, 0x96, 0xd6, 0xa6, 0x29,
-	0x41, 0xdb, 0x53, 0x6e, 0xc4, 0x8b, 0xdc, 0x42, 0x6e, 0x42, 0xd5, 0x29, 0x82, 0x81, 0x37, 0xb5,
-	0x5a, 0x5a, 0xab, 0xd1, 0x0a, 0xae, 0x9f, 0x0f, 0xc8, 0x16, 0xdc, 0x4c, 0x42, 0x6e, 0x86, 0x52,
-	0x45, 0xec, 0x4c, 0x28, 0x1d, 0xc8, 0x98, 0xf9, 0x72, 0x20, 0x62, 0x1e, 0x09, 0x6f, 0x1a, 0xb9,
-	0xcb, 0x39, 0xe1, 0xa5, 0xb3, 0x77, 0x33, 0x33, 0xb9, 0x0b, 0x2d, 0xc3, 0xd5, 0x89, 0x30, 0x2c,
-	0x51, 0x72, 0x90, 0xfa, 0xc6, 0x2b, 0xa3, 0xa0, 0xe9, 0xd0, 0x43, 0x07, 0x92, 0x01, 0x2c, 0x66,
-	0x34, 0x17, 0xc4, 0x19, 0x57, 0x01, 0x8f, 0x8d, 0x37, 0xb3, 0x5a, 0x5a, 0x6b, 0x6d, 0xdc, 0x5f,
-	0x9f, 0x70, 0xe6, 0xf5, 0xc2, 0x79, 0xd7, 0x77, 0xac, 0xe5, 0xa5, 0x13, 0x6d, 0x4d, 0xef, 0x1e,
-	0x3c, 0xa3, 0xc4, 0xf9, 0x2b, 0x1a, 0x48, 0x0f, 0xea, 0xd9, 0x2e, 0x5c, 0xf9, 0xa7, 0xde, 0x2c,
-	0x3a, 0xbf, 0xfb, 0x41, 0xe7, 0xdb, 0xca, 0x3f, 0xdd, 0xaa, 0x1c, 0x1f, 0xec, 0x1d, 0xf4, 0x7e,
-	0x3e, 0xa0, 0xe0, 0x5c, 0x58, 0x90, 0xac, 0xc3, 0x42, 0xc1, 0xe1, 0x38, 0xea, 0x0a, 0x1e, 0x71,
-	0xfe, 0x82, 0x98, 0x07, 0xf0, 0x0d, 0x64, 0x61, 0x31, 0x3f, 0x49, 0xc7, 0xf4, 0x2a, 0xd2, 0xdb,
-	0xce, 0xd2, 0x4d, 0xd2, 0x9c, 0xbd, 0x07, 0xb5, 0x53, 0xa9, 0xb3, 0x60, 0x6b, 0x1f, 0x15, 0x6c,
-	0xd5, 0x3a, 0xc0, 0x50, 0x29, 0x34, 0xd1, 0xd9, 0x46, 0x3c, 0x70, 0x0e, 0xe1, 0xa3, 0x1c, 0xd6,
-	0xad, 0x93, 0x8d, 0x78, 0x80, 0x3e, 0x97, 0xa1, 0x82, 0x3e, 0xa5, 0xf6, 0xea, 0x78, 0x86, 0x59,
-	0xbb, 0xec, 0x69, 0xd2, 0xc9, 0x36, 0x93, 0x9a, 0x89, 0x73, 0xa3, 0xb8, 0xd7, 0x40, 0x73, 0xdd,
-	0x99, 0x77, 0x2d, 0x34, 0xe6, 0xf8, 0x4a, 0x6a, 0x6d, 0x5d, 0x34, 0x2f, 0x38, 0x5d, 0x8b, 0xf5,
-	0x34, 0xb9, 0x07, 0x73, 0x05, 0x0e, 0x86, 0xdd, 0x72, 0xcf, 0x67, 0xcc, 0xc2, 0x40, 0xee, 0xc3,
-	0x42, 0x81, 0x37, 0x3e, 0xe2, 0x9c, 0x4b, 0xec, 0x98, 0x5b, 0x88, 0x5b, 0xa6, 0x86, 0x0d, 0x02,
-	0xe5, 0xb5, 0x5d, 0xdc, 0x32, 0x35, 0x4f, 0x03, 0x45, 0xbe, 0x83, 0xba, 0x16, 0x26, 0x4d, 0x98,
-	0x91, 0x32, 0xd4, 0xde, 0xfc, 0xea, 0xf4, 0x5a, 0x7d, 0xe3, 0xce, 0xc4, 0x14, 0x1d, 0x0a, 0x35,
-	0x7c, 0x1e, 0x0f, 0x25, 0x05, 0x54, 0xbc, 0xb0, 0x02, 0xb2, 0x05, 0xb5, 0x37, 0xdc, 0x04, 0x4c,
-	0xa5, 0xb1, 0xf6, 0xc8, 0x75, 0xd4, 0x55, 0xcb, 0xa7, 0x69, 0xac, 0xc9, 0x13, 0x00, 0xc7, 0x44,
-	0xf1, 0xc2, 0x75, 0xc4, 0x35, 0xb4, 0xe6, 0xea, 0x38, 0x88, 0x5f, 0x73, 0xa7, 0x5e, 0xbc, 0x96,
-	0x1a, 0x05, 0xa8, 0xfe, 0x16, 0x66, 0x8c, 0x34, 0x3c, 0xf4, 0x96, 0x56, 0x4b, 0x1f, 0x16, 0x3a,
-	0x2e, 0x79, 0x09, 0x93, 0x5a, 0x91, 0xf7, 0x09, 0xba, 0xb8, 0x37, 0xd1, 0xc5, 0x91, 0xc5, 0xb0,
-	0x24, 0xb3, 0x17, 0x46, 0xe7, 0xf5, 0x55, 0x88, 0x74, 0xa1, 0xe1, 0x54, 0xbe, 0x8c, 0x87, 0xc1,
-	0x89, 0xb7, 0x8c, 0x0e, 0x57, 0x27, 0x3a, 0x44, 0x61, 0x17, 0x79, 0xb4, 0xde, 0xbf, 0x58, 0x90,
-	0x15, 0xc0, 0xa7, 0x8f, 0x2d, 0xca, 0xc3, 0x3b, 0x1e, 0xaf, 0xc9, 0x2f, 0xb0, 0xa8, 0x47, 0xda,
-	0x88, 0x88, 0x29, 0xa1, 0x65, 0xaa, 0x7c, 0xc1, 0x82, 0x78, 0x28, 0xbd, 0x9b, 0xb8, 0xd1, 0x57,
-	0x93, 0x23, 0x47, 0x01, 0xcd, 0xf8, 0x98, 0x06, 0xa2, 0xdf, 0xc1, 0xc8, 0x17, 0xd0, 0xcc, 0x63,
-	0x8f, 0x22, 0x1e, 0x0f, 0xbc, 0x15, 0xdc, 0xbb, 0x91, 0x85, 0x86, 0x98, 0xbd, 0xab, 0x3e, 0x7f,
-	0x2b, 0x42, 0x77, 0x57, 0xb7, 0xae, 0x75, 0x57, 0x28, 0xb0, 0x77, 0xd5, 0x79, 0x08, 0x8d, 0x4b,
-	0x4d, 0xad, 0x0a, 0xe5, 0xe3, 0xa3, 0x5d, 0xda, 0xbe, 0x41, 0x9a, 0x50, 0xb3, 0x5f, 0x4f, 0x77,
-	0x77, 0x8e, 0x9f, 0xb5, 0x4b, 0xa4, 0x02, 0xb6, 0x11, 0xb6, 0xa7, 0x3a, 0x4f, 0xa0, 0x8c, 0xcf,
-	0xbe, 0x0e, 0x79, 0x19, 0xb7, 0x6f, 0x58, 0xeb, 0x36, 0xdd, 0x6f, 0x97, 0x48, 0x0d, 0x66, 0xb6,
-	0xe9, 0xfe, 0xe6, 0xa3, 0xf6, 0x94, 0xc5, 0x5e, 0x3d, 0xde, 0x6c, 0x4f, 0x13, 0x80, 0xd9, 0x57,
-	0x8f, 0x37, 0xd9, 0xe6, 0xa3, 0x76, 0xb9, 0x73, 0x02, 0xf5, 0x42, 0x96, 0xed, 0x9c, 0x48, 0xb5,
-	0x60, 0x27, 0x32, 0xe2, 0x38, 0x4d, 0xaa, 0xb4, 0x92, 0x6a, 0xf1, 0x4c, 0x46, 0xdc, 0x96, 0x95,
-	0x35, 0xa9, 0xbe, 0xc0, 0x09, 0x52, 0xa5, 0xb3, 0xa9, 0x16, 0xb4, 0x2f, 0xc8, 0x97, 0xd0, 0x1a,
-	0x4a, 0x9b, 0xe6, 0xb1, 0x72, 0x1a, 0xed, 0x0d, 0x44, 0x8f, 0x9d, 0xbc, 0x23, 0x81, 0xbc, 0x9b,
-	0x65, 0xb2, 0x01, 0x4b, 0xf8, 0xdc, 0x58, 0x72, 0x3a, 0xd2, 0x81, 0xcf, 0x43, 0x16, 0x89, 0x48,
-	0xaa, 0x11, 0x6e, 0x5e, 0xa6, 0x0b, 0x68, 0x3c, 0xcc, 0x6c, 0xfb, 0x68, 0xb2, 0x43, 0x87, 0x9f,
-	0xf1, 0x20, 0xe4, 0xfd, 0x50, 0xd8, 0x4e, 0xab, 0x31, 0x9e, 0x19, 0xda, 0x1c, 0xa3, 0xdd, 0x24,
-	0xd5, 0x9d, 0x7f, 0x4b, 0x50, 0xcd, 0x33, 0x4c, 0x08, 0x94, 0x07, 0x42, 0xfb, 0xe8, 0xb6, 0x46,
-	0xf1, 0xdb, 0x62, 0xf8, 0x80, 0xdc, 0x3c, 0xc4, 0x6f, 0x72, 0x07, 0x40, 0x1b, 0xae, 0x0c, 0x0e,
-	0x55, 0x3c, 0x47, 0x99, 0xd6, 0x10, 0xb1, 0xb3, 0x94, 0xdc, 0x82, 0x9a, 0x12, 0x3c, 0x74, 0xd6,
-	0x32, 0x5a, 0xab, 0x16, 0x40, 0xe3, 0xe7, 0x00, 0x2e, 0x78, 0x9b, 0x08, 0x9c, 0x6d, 0xe5, 0x9d,
-	0x29, 0xaf, 0x44, 0x6b, 0x0e, 0x3d, 0xd6, 0x82, 0xfc, 0x0e, 0xcb, 0x89, 0x92, 0xbe, 0xd0, 0x5a,
-	0xe8, 0x2b, 0xcf, 0x73, 0x16, 0x1f, 0xca, 0xda, 0xe4, 0x87, 0xe2, 0x34, 0x97, 0xde, 0xe7, 0xd2,
-	0xd8, 0x51, 0x11, 0xee, 0xfc, 0x39, 0x0d, 0x0b, 0x13, 0xe8, 0xe3, 0xc3, 0x96, 0x0a, 0x87, 0x5d,
-	0x83, 0x76, 0xaa, 0x85, 0xc2, 0xd3, 0xb0, 0x28, 0xb0, 0xed, 0x15, 0x93, 0x51, 0xa6, 0x2d, 0x8b,
-	0xdb, 0x43, 0xed, 0x23, 0x6a, 0x27, 0x5b, 0x56, 0x53, 0x45, 0xae, 0x4b, 0x4f, 0xdb, 0x59, 0x0a,
-	0xec, 0xdb, 0x00, 0x11, 0x3f, 0x67, 0x4a, 0x6b, 0xf6, 0xa6, 0x9f, 0xa7, 0x29, 0xe2, 0xe7, 0x54,
-	0xeb, 0xbd, 0x3e, 0xf9, 0x1a, 0xe6, 0xa3, 0x20, 0x96, 0x8a, 0x25, 0xfc, 0x44, 0xb0, 0x21, 0x4f,
-	0x43, 0xa3, 0x5d, 0xb6, 0xe8, 0x1c, 0x1a, 0x0e, 0xf9, 0x89, 0xf8, 0x01, 0x61, 0xe4, 0xf2, 0xd7,
-	0x57, 0xb8, 0xb3, 0x19, 0xd7, 0x1a, 0x0a, 0xdc, 0x4f, 0xa1, 0x1e, 0x48, 0x16, 0xc4, 0x49, 0x6a,
-	0xec, 0xb6, 0x15, 0x77, 0x77, 0x81, 0x7c, 0x6e, 0x91, 0xbd, 0x3e, 0x59, 0x85, 0x46, 0x20, 0x99,
-	0x4c, 0x4d, 0x46, 0xa8, 0x22, 0x01, 0x02, 0xd9, 0x43, 0x68, 0xaf, 0x4f, 0x9e, 0xc0, 0xca, 0x99,
-	0x0c, 0xd3, 0xd8, 0x70, 0x35, 0xb2, 0xed, 0xc9, 0x88, 0x73, 0xc3, 0xf4, 0x1f, 0x81, 0xf1, 0x4f,
-	0x85, 0xc6, 0x11, 0x5d, 0xa6, 0xde, 0x98, 0xd1, 0x75, 0x84, 0xa3, 0xcc, 0x4e, 0xbe, 0x87, 0xdb,
-	0x41, 0xfc, 0x1e, 0x3d, 0xa0, 0x7e, 0xa5, 0xc0, 0xb9, 0xe2, 0xa1, 0xf3, 0x4f, 0x09, 0x5a, 0xfb,
-	0x72, 0x90, 0x86, 0xe2, 0xc5, 0x28, 0x71, 0xd7, 0xf6, 0x5b, 0xde, 0x2d, 0x5d, 0x92, 0xf1, 0xfa,
-	0x5a, 0x1b, 0x0f, 0x26, 0x8f, 0xf5, 0x4b, 0x52, 0xd7, 0x3c, 0x5d, 0xc9, 0x15, 0x06, 0x7c, 0xff,
-	0x02, 0x25, 0x9f, 0x41, 0x3d, 0x42, 0x0d, 0x33, 0xa3, 0x24, 0xaf, 0x03, 0x88, 0xc6, 0x6e, 0x6c,
-	0x65, 0xc7, 0x69, 0xc4, 0xe4, 0x90, 0x39, 0xd0, 0x5d, 0x79, 0x93, 0x36, 0xe2, 0x34, 0xea, 0x0d,
-	0xdd, 0x7e, 0xba, 0xf3, 0x20, 0x6b, 0x21, 0x99, 0xd7, 0x4b, 0x7d, 0xa8, 0x06, 0x33, 0x47, 0xbd,
-	0xde, 0x81, 0x6d, 0x58, 0x55, 0x28, 0xef, 0x6f, 0xef, 0xed, 0xb6, 0xa7, 0x3a, 0x21, 0xac, 0x74,
-	0x55, 0x60, 0x6c, 0x49, 0x1f, 0x6b, 0xa1, 0x7e, 0x92, 0xa9, 0x8a, 0xc5, 0x28, 0x1f, 0x10, 0x93,
-	0x5e, 0xea, 0x16, 0x54, 0xf2, 0x01, 0x34, 0xf5, 0x9e, 0x79, 0x51, 0xf8, 0x61, 0x43, 0x73, 0x41,
-	0xa7, 0x0f, 0xb7, 0x26, 0xec, 0xa6, 0x2f, 0xe6, 0x51, 0xd9, 0x4f, 0x5f, 0x6b, 0xaf, 0x84, 0xf5,
-	0x37, 0x39, 0xb3, 0xff, 0x1f, 0x2d, 0x45, 0x71, 0xe7, 0xaf, 0x12, 0xcc, 0xbf, 0x33, 0xfd, 0x88,
-	0x07, 0x95, 0x3c, 0x6f, 0x25, 0xcc, 0x5b, 0xbe, 0xb4, 0xf3, 0x2b, 0xfb, 0x79, 0xe8, 0x0e, 0xd4,
-	0xa4, 0xe3, 0xb5, 0x7d, 0xf3, 0xae, 0x25, 0xf2, 0x30, 0x94, 0x3e, 0xf3, 0x65, 0x1a, 0x9b, 0xac,
-	0xd4, 0xe6, 0xd0, 0xb0, 0x6d, 0xf1, 0xae, 0x85, 0x6d, 0x05, 0x17, 0xb9, 0x3a, 0x78, 0x9b, 0xb7,
-	0xa5, 0xd6, 0x05, 0xf5, 0x28, 0x78, 0x2b, 0xec, 0xef, 0x31, 0x5b, 0x93, 0xa7, 0x82, 0x27, 0x8e,
-	0xe6, 0x2a, 0xae, 0x1e, 0xf1, 0xf3, 0x1f, 0x05, 0x4f, 0x2c, 0x67, 0x67, 0xe9, 0xd7, 0x6c, 0xe4,
-	0x67, 0xe7, 0x66, 0xf8, 0x97, 0xe4, 0xbf, 0x00, 0x00, 0x00, 0xff, 0xff, 0xcb, 0xfb, 0x8e, 0xf5,
-	0xa2, 0x0c, 0x00, 0x00,
+	// 1423 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x9c, 0x57, 0xdd, 0x52, 0x1b, 0xc7,
+	0x12, 0xb6, 0x40, 0x20, 0xa9, 0xf5, 0x83, 0x18, 0xe0, 0xb0, 0xc6, 0xf6, 0x39, 0x1c, 0xc5, 0x76,
+	0xa8, 0x54, 0x8c, 0x5d, 0xc4, 0x45, 0xb9, 0x28, 0x57, 0x2a, 0x20, 0x13, 0xc7, 0xa1, 0x84, 0xa8,
+	0xc1, 0x38, 0x4e, 0x72, 0x31, 0x19, 0xad, 0x46, 0xb0, 0xf6, 0xee, 0xce, 0xd6, 0xcc, 0x2c, 0x01,
+	0xbf, 0x99, 0xaf, 0xf3, 0x12, 0x79, 0x81, 0x3c, 0x41, 0x5e, 0x20, 0x35, 0x3d, 0xbb, 0x62, 0xc1,
+	0x8a, 0x4d, 0xf9, 0x4e, 0xfb, 0xf5, 0xf7, 0xf5, 0x76, 0xf7, 0xf4, 0x74, 0xaf, 0xa0, 0x19, 0x09,
+	0xa3, 0x02, 0x5f, 0xaf, 0x27, 0x4a, 0x1a, 0x49, 0x16, 0xb4, 0x94, 0xf1, 0x31, 0x1b, 0xa4, 0x41,
+	0x38, 0x64, 0x99, 0xa9, 0xf3, 0x67, 0x03, 0xea, 0x3d, 0xf7, 0x7b, 0x87, 0x6b, 0x41, 0x1e, 0xc1,
+	0xa2, 0x23, 0x0c, 0xb9, 0x11, 0xcc, 0x04, 0x91, 0xd0, 0x86, 0x47, 0x89, 0x57, 0x5a, 0x2d, 0xad,
+	0x4d, 0x53, 0x82, 0xb6, 0x67, 0xdc, 0x88, 0x97, 0xb9, 0x85, 0xdc, 0x84, 0xaa, 0x53, 0x04, 0x43,
+	0x6f, 0x6a, 0xb5, 0xb4, 0x56, 0xa3, 0x15, 0x7c, 0x7e, 0x31, 0x24, 0x5b, 0x70, 0x33, 0x09, 0xb9,
+	0x19, 0x49, 0x15, 0xb1, 0x53, 0xa1, 0x74, 0x20, 0x63, 0xe6, 0xcb, 0xa1, 0x88, 0x79, 0x24, 0xbc,
+	0x69, 0xe4, 0x2e, 0xe7, 0x84, 0x57, 0xce, 0xde, 0xcd, 0xcc, 0xe4, 0x1e, 0xb4, 0x0c, 0x57, 0xc7,
+	0xc2, 0xb0, 0x44, 0xc9, 0x61, 0xea, 0x1b, 0xaf, 0x8c, 0x82, 0xa6, 0x43, 0x0f, 0x1c, 0x48, 0x86,
+	0xb0, 0x98, 0xd1, 0x5c, 0x10, 0xa7, 0x5c, 0x05, 0x3c, 0x36, 0xde, 0xcc, 0x6a, 0x69, 0xad, 0xb5,
+	0xf1, 0x60, 0x7d, 0x42, 0xce, 0xeb, 0x85, 0x7c, 0xd7, 0x77, 0xac, 0xe5, 0x95, 0x13, 0x6d, 0x4d,
+	0xef, 0xee, 0x3f, 0xa7, 0xc4, 0xf9, 0x2b, 0x1a, 0x48, 0x1f, 0xea, 0xd9, 0x5b, 0xb8, 0xf2, 0x4f,
+	0xbc, 0x59, 0x74, 0x7e, 0xef, 0x93, 0xce, 0xb7, 0x95, 0x7f, 0xb2, 0x55, 0x39, 0xda, 0xdf, 0xdb,
+	0xef, 0xff, 0xb4, 0x4f, 0xc1, 0xb9, 0xb0, 0x20, 0x59, 0x87, 0x85, 0x82, 0xc3, 0x71, 0xd4, 0x15,
+	0x4c, 0x71, 0xfe, 0x82, 0x98, 0x07, 0xf0, 0x35, 0x64, 0x61, 0x31, 0x3f, 0x49, 0xc7, 0xf4, 0x2a,
+	0xd2, 0xdb, 0xce, 0xd2, 0x4d, 0xd2, 0x9c, 0xbd, 0x07, 0xb5, 0x13, 0xa9, 0xb3, 0x60, 0x6b, 0x9f,
+	0x15, 0x6c, 0xd5, 0x3a, 0xc0, 0x50, 0x29, 0x34, 0xd1, 0xd9, 0x46, 0x3c, 0x74, 0x0e, 0xe1, 0xb3,
+	0x1c, 0xd6, 0xad, 0x93, 0x8d, 0x78, 0x88, 0x3e, 0x97, 0xa1, 0x82, 0x3e, 0xa5, 0xf6, 0xea, 0x98,
+	0xc3, 0xac, 0x7d, 0xec, 0x6b, 0xd2, 0xc9, 0x5e, 0x26, 0x35, 0x13, 0x67, 0x46, 0x71, 0xaf, 0x81,
+	0xe6, 0xba, 0x33, 0xef, 0x5a, 0x68, 0xcc, 0xf1, 0x95, 0xd4, 0xda, 0xba, 0x68, 0x5e, 0x70, 0xba,
+	0x16, 0xeb, 0x6b, 0x72, 0x1f, 0xe6, 0x0a, 0x1c, 0x0c, 0xbb, 0xe5, 0xda, 0x67, 0xcc, 0xc2, 0x40,
+	0x1e, 0xc0, 0x42, 0x81, 0x37, 0x4e, 0x71, 0xce, 0x15, 0x76, 0xcc, 0x2d, 0xc4, 0x2d, 0x53, 0xc3,
+	0x86, 0x81, 0xf2, 0xda, 0x2e, 0x6e, 0x99, 0x9a, 0x67, 0x81, 0x22, 0xdf, 0x42, 0x5d, 0x0b, 0x93,
+	0x26, 0xcc, 0x48, 0x19, 0x6a, 0x6f, 0x7e, 0x75, 0x7a, 0xad, 0xbe, 0x71, 0x67, 0x62, 0x89, 0x0e,
+	0x84, 0x1a, 0xbd, 0x88, 0x47, 0x92, 0x02, 0x2a, 0x5e, 0x5a, 0x01, 0xd9, 0x82, 0xda, 0x5b, 0x6e,
+	0x02, 0xa6, 0xd2, 0x58, 0x7b, 0xe4, 0x3a, 0xea, 0xaa, 0xe5, 0xd3, 0x34, 0xd6, 0xe4, 0x29, 0x80,
+	0x63, 0xa2, 0x78, 0xe1, 0x3a, 0xe2, 0x1a, 0x5a, 0x73, 0x75, 0x1c, 0xc4, 0x6f, 0xb8, 0x53, 0x2f,
+	0x5e, 0x4b, 0x8d, 0x02, 0x54, 0x7f, 0x03, 0x33, 0x46, 0x1a, 0x1e, 0x7a, 0x4b, 0xab, 0xa5, 0x4f,
+	0x0b, 0x1d, 0x97, 0xbc, 0x82, 0x49, 0xa3, 0xc8, 0xfb, 0x0f, 0xba, 0xb8, 0x3f, 0xd1, 0xc5, 0xa1,
+	0xc5, 0xf0, 0x4a, 0x66, 0x1d, 0x46, 0xe7, 0xf5, 0x55, 0x88, 0x74, 0xa1, 0xe1, 0x54, 0xbe, 0x8c,
+	0x47, 0xc1, 0xb1, 0xb7, 0x8c, 0x0e, 0x57, 0x27, 0x3a, 0x44, 0x61, 0x17, 0x79, 0xb4, 0x3e, 0xb8,
+	0x78, 0x20, 0x2b, 0x80, 0xad, 0x8f, 0x23, 0xca, 0xc3, 0x33, 0x1e, 0x3f, 0x93, 0x9f, 0x61, 0x51,
+	0x9f, 0x6b, 0x23, 0x22, 0xa6, 0x84, 0x96, 0xa9, 0xf2, 0x05, 0x0b, 0xe2, 0x91, 0xf4, 0x6e, 0xe2,
+	0x8b, 0xbe, 0x9c, 0x1c, 0x39, 0x0a, 0x68, 0xc6, 0xc7, 0x32, 0x10, 0xfd, 0x01, 0x46, 0xbe, 0x80,
+	0x66, 0x1e, 0x7b, 0x14, 0xf1, 0x78, 0xe8, 0xad, 0xe0, 0xbb, 0x1b, 0x59, 0x68, 0x88, 0xd9, 0xb3,
+	0x1a, 0xf0, 0x77, 0x22, 0x74, 0x67, 0x75, 0xeb, 0x5a, 0x67, 0x85, 0x02, 0x7b, 0x56, 0x9d, 0x47,
+	0xd0, 0xb8, 0x34, 0xd4, 0xaa, 0x50, 0x3e, 0x3a, 0xdc, 0xa5, 0xed, 0x1b, 0xa4, 0x09, 0x35, 0xfb,
+	0xeb, 0xd9, 0xee, 0xce, 0xd1, 0xf3, 0x76, 0x89, 0x54, 0xc0, 0x0e, 0xc2, 0xf6, 0x54, 0xe7, 0x29,
+	0x94, 0xb1, 0xed, 0xeb, 0x90, 0x5f, 0xe3, 0xf6, 0x0d, 0x6b, 0xdd, 0xa6, 0xbd, 0x76, 0x89, 0xd4,
+	0x60, 0x66, 0x9b, 0xf6, 0x36, 0x1f, 0xb7, 0xa7, 0x2c, 0xf6, 0xfa, 0xc9, 0x66, 0x7b, 0x9a, 0x00,
+	0xcc, 0xbe, 0x7e, 0xb2, 0xc9, 0x36, 0x1f, 0xb7, 0xcb, 0x9d, 0xf7, 0x25, 0xa8, 0x17, 0xca, 0x6c,
+	0x17, 0x45, 0xaa, 0x05, 0x3b, 0x96, 0x11, 0xc7, 0x75, 0x52, 0xa5, 0x95, 0x54, 0x8b, 0xe7, 0x32,
+	0xe2, 0xf6, 0x5e, 0x59, 0x93, 0x1a, 0x08, 0x5c, 0x21, 0x55, 0x3a, 0x9b, 0x6a, 0x41, 0x07, 0x82,
+	0xdc, 0x85, 0xd6, 0x48, 0xda, 0x3a, 0x8f, 0x95, 0xd3, 0x68, 0x6f, 0x20, 0x7a, 0x94, 0xc9, 0xef,
+	0x42, 0xcb, 0xd5, 0x85, 0x6b, 0x86, 0xbd, 0x89, 0xbb, 0xa2, 0x4a, 0x1b, 0x88, 0x6e, 0xeb, 0x7d,
+	0x8b, 0x91, 0xaf, 0x60, 0xde, 0xb1, 0xa2, 0xe0, 0x4c, 0x0c, 0x5d, 0xc1, 0x70, 0x4f, 0x54, 0xe9,
+	0x1c, 0x1a, 0x7a, 0x16, 0xc7, 0x88, 0x3b, 0x12, 0xc8, 0x87, 0x07, 0x47, 0x36, 0x60, 0x09, 0x3b,
+	0x98, 0x25, 0x27, 0xe7, 0x3a, 0xf0, 0x79, 0xc8, 0x22, 0x11, 0x49, 0x75, 0x8e, 0xe9, 0x94, 0xe9,
+	0x02, 0x1a, 0x0f, 0x32, 0x5b, 0x0f, 0x4d, 0x76, 0x8f, 0xf1, 0x53, 0x1e, 0x84, 0x7c, 0x10, 0x0a,
+	0x3b, 0xbc, 0x35, 0x66, 0x38, 0x43, 0x9b, 0x63, 0xb4, 0x9b, 0xa4, 0xba, 0xf3, 0x77, 0x09, 0xaa,
+	0xf9, 0xa1, 0x11, 0x02, 0xe5, 0xa1, 0xd0, 0x3e, 0xba, 0xad, 0x51, 0xfc, 0x6d, 0x31, 0xec, 0x49,
+	0xb7, 0x62, 0xf1, 0x37, 0xb9, 0x03, 0xa0, 0x0d, 0x57, 0x06, 0xf7, 0x34, 0x56, 0xa6, 0x4c, 0x6b,
+	0x88, 0xd8, 0xf5, 0x4c, 0x6e, 0x41, 0x4d, 0x09, 0x1e, 0x3a, 0x6b, 0x19, 0xad, 0x55, 0x0b, 0xa0,
+	0xf1, 0xff, 0x00, 0x2e, 0x78, 0x5b, 0x5a, 0x2c, 0x43, 0x79, 0x67, 0xca, 0x2b, 0xd1, 0x9a, 0x43,
+	0x8f, 0xb4, 0x20, 0xbf, 0xc1, 0x72, 0xa2, 0xa4, 0x2f, 0xb4, 0x16, 0xfa, 0x4a, 0xc7, 0xcf, 0x62,
+	0xef, 0xad, 0x4d, 0xee, 0x3d, 0xa7, 0xb9, 0xd4, 0xf2, 0x4b, 0x63, 0x47, 0x45, 0xb8, 0xf3, 0x7e,
+	0x1a, 0x16, 0x26, 0xd0, 0xc7, 0xc9, 0x96, 0x0a, 0xc9, 0xae, 0x41, 0x3b, 0xd5, 0x42, 0x61, 0x36,
+	0x2c, 0x0a, 0xec, 0xc4, 0xc6, 0x62, 0x94, 0x69, 0xcb, 0xe2, 0x36, 0xa9, 0x1e, 0xa2, 0x76, 0x59,
+	0x66, 0xd7, 0xb4, 0xc8, 0x75, 0xe5, 0x69, 0x3b, 0x4b, 0x81, 0x7d, 0x1b, 0x20, 0xe2, 0x67, 0x4c,
+	0x69, 0xcd, 0xde, 0x0e, 0xf2, 0x32, 0x45, 0xfc, 0x8c, 0x6a, 0xbd, 0x37, 0xb0, 0x4d, 0x13, 0x05,
+	0xb1, 0x54, 0x2c, 0xe1, 0xc7, 0x82, 0x8d, 0x78, 0x1a, 0x1a, 0xed, 0xaa, 0x45, 0xe7, 0xd0, 0x70,
+	0xc0, 0x8f, 0xc5, 0xf7, 0x08, 0x23, 0x97, 0xbf, 0xb9, 0xc2, 0x9d, 0xcd, 0xb8, 0xd6, 0x50, 0xe0,
+	0xfe, 0x17, 0xea, 0x81, 0x64, 0x41, 0x9c, 0xa4, 0xc6, 0xbe, 0xb6, 0xe2, 0xce, 0x2e, 0x90, 0x2f,
+	0x2c, 0xb2, 0x37, 0x20, 0xab, 0xd0, 0x08, 0x24, 0x93, 0xa9, 0xc9, 0x08, 0x55, 0x24, 0x40, 0x20,
+	0xfb, 0x08, 0xed, 0x0d, 0xc8, 0x53, 0x58, 0x39, 0x95, 0x61, 0x1a, 0x1b, 0xae, 0xce, 0xed, 0xc4,
+	0x33, 0xe2, 0xcc, 0x30, 0xfd, 0x7b, 0x60, 0xfc, 0x13, 0xa1, 0x71, 0xeb, 0x97, 0xa9, 0x37, 0x66,
+	0x74, 0x1d, 0xe1, 0x30, 0xb3, 0x93, 0xef, 0xe0, 0x76, 0x10, 0x7f, 0x44, 0x0f, 0xa8, 0x5f, 0x29,
+	0x70, 0xae, 0x78, 0xe8, 0xfc, 0x55, 0x82, 0x56, 0x4f, 0x0e, 0xd3, 0x50, 0xbc, 0x3c, 0x4f, 0xdc,
+	0xb1, 0xfd, 0x9a, 0x0f, 0x60, 0x57, 0x64, 0x3c, 0xbe, 0xd6, 0xc6, 0xc3, 0xc9, 0x5f, 0x0a, 0x97,
+	0xa4, 0x6e, 0x1e, 0xbb, 0x2b, 0x57, 0xf8, 0x66, 0x18, 0x5c, 0xa0, 0xe4, 0x7f, 0x50, 0x8f, 0x50,
+	0xc3, 0xcc, 0x79, 0x92, 0xdf, 0x03, 0x88, 0xc6, 0x6e, 0xec, 0x14, 0x88, 0xd3, 0x88, 0xc9, 0x11,
+	0x73, 0xa0, 0x3b, 0xf2, 0x26, 0x6d, 0xc4, 0x69, 0xd4, 0x1f, 0xb9, 0xf7, 0xe9, 0xce, 0xc3, 0x6c,
+	0x28, 0x65, 0x5e, 0x2f, 0x8d, 0xb6, 0x1a, 0xcc, 0x1c, 0xf6, 0xfb, 0xfb, 0x76, 0x06, 0x56, 0xa1,
+	0xdc, 0xdb, 0xde, 0xdb, 0x6d, 0x4f, 0x75, 0x42, 0x58, 0xe9, 0xaa, 0xc0, 0xd8, 0x2b, 0x7d, 0xa4,
+	0x85, 0xfa, 0x51, 0xa6, 0x2a, 0x16, 0xe7, 0xf9, 0xce, 0x99, 0xd4, 0xa9, 0x5b, 0x50, 0xc9, 0x77,
+	0xda, 0xd4, 0x47, 0x56, 0x50, 0xe1, 0x5b, 0x89, 0xe6, 0x82, 0xce, 0x00, 0x6e, 0x4d, 0x78, 0x9b,
+	0xbe, 0x58, 0x71, 0x65, 0x3f, 0x7d, 0xa3, 0xbd, 0x12, 0xde, 0xbf, 0xc9, 0x95, 0xfd, 0xf7, 0x68,
+	0x29, 0x8a, 0x3b, 0x7f, 0x94, 0x60, 0xfe, 0x83, 0x85, 0x4a, 0x3c, 0xa8, 0xe4, 0x75, 0x2b, 0x61,
+	0xdd, 0xf2, 0x47, 0xbb, 0x12, 0xb3, 0x2f, 0x4e, 0x97, 0x50, 0x93, 0x8e, 0x9f, 0x6d, 0xcf, 0xbb,
+	0x91, 0xc8, 0xc3, 0x50, 0xfa, 0xcc, 0x97, 0x69, 0x6c, 0xb2, 0xab, 0x36, 0x87, 0x86, 0x6d, 0x8b,
+	0x77, 0x2d, 0x6c, 0x6f, 0x70, 0x91, 0xab, 0x83, 0x77, 0xf9, 0x58, 0x6a, 0x5d, 0x50, 0x0f, 0x83,
+	0x77, 0xc2, 0x7e, 0xe2, 0xd9, 0x3b, 0x79, 0x22, 0x78, 0xe2, 0x68, 0xee, 0xc6, 0xd5, 0x23, 0x7e,
+	0xf6, 0x83, 0xe0, 0x89, 0xe5, 0xec, 0x2c, 0xfd, 0x92, 0x7d, 0x45, 0x64, 0x79, 0x33, 0xfc, 0x97,
+	0xf3, 0x4f, 0x00, 0x00, 0x00, 0xff, 0xff, 0xe9, 0x63, 0x09, 0x14, 0xf5, 0x0c, 0x00, 0x00,
 }
diff --git a/ui/metrics/metrics_proto/metrics.proto b/ui/metrics/metrics_proto/metrics.proto
index 91d8dd9..b284bf9 100644
--- a/ui/metrics/metrics_proto/metrics.proto
+++ b/ui/metrics/metrics_proto/metrics.proto
@@ -116,6 +116,13 @@
   optional bool use_rbe = 2;
 
   optional bool force_use_goma = 3;
+
+  // Whether the Bazel is acting as the Ninja executor for this build.
+  optional bool bazel_as_ninja = 4;
+
+  // Whether build is occurring in a mixed build mode, where Bazel maintains the
+  // definition and build of some modules in cooperation with Soong.
+  optional bool bazel_mixed_build = 5;
 }
 
 message SystemResourceInfo {