sensorlog_lite: Rename SyncGroup to syncgroup.

Context: v.io/c/16420
Change-Id: Ibfbb1489d16fdb6a9dce6354312c02eb5c5be875
diff --git a/go/src/v.io/x/sensorlog/internal/config/defaults.go b/go/src/v.io/x/sensorlog/internal/config/defaults.go
index 8e40688..1854d83 100644
--- a/go/src/v.io/x/sensorlog/internal/config/defaults.go
+++ b/go/src/v.io/x/sensorlog/internal/config/defaults.go
@@ -22,6 +22,6 @@
 
 var AllTables = []string{StreamDefTable}
 
-func SyncGroupName(publishService, devId string) string {
+func SyncgroupName(publishService, devId string) string {
 	return naming.Join(publishService, "%%sync", "sllite", "dev", devId)
 }
diff --git a/go/src/v.io/x/sensorlog/internal/measure/syncgroup.go b/go/src/v.io/x/sensorlog/internal/measure/syncgroup.go
index 3b16a8b..871e619 100644
--- a/go/src/v.io/x/sensorlog/internal/measure/syncgroup.go
+++ b/go/src/v.io/x/sensorlog/internal/measure/syncgroup.go
@@ -19,16 +19,16 @@
 	"v.io/x/sensorlog_lite/internal/sbutil"
 )
 
-// InitSyncGroup creates the syncgroup for the measuring device devId, giving
+// InitSyncgroup creates the syncgroup for the measuring device devId, giving
 // full configuration access to admin. The syncgroup uses sgPublishSb and
 // sgMountTables for publishing (create/join) and syncing, respectively.
-// InitSyncGroup must not be called concurrently for the same devId, or
+// InitSyncgroup must not be called concurrently for the same devId, or
 // retried with different parameters for the same devId, otherwise behaviour
 // is unspecified.
-func InitSyncGroup(ctx *context.T, db nosql.Database, devId, admin, sgPublishSb string, sgMountTables []string) error {
-	sgName := config.SyncGroupName(sgPublishSb, devId)
+func InitSyncgroup(ctx *context.T, db nosql.Database, devId, admin, sgPublishSb string, sgMountTables []string) error {
+	sgName := config.SyncgroupName(sgPublishSb, devId)
 	// Check for syncgroup. If it already exists, we have nothing to do.
-	if sgs, err := db.GetSyncGroupNames(ctx); err != nil {
+	if sgs, err := db.GetSyncgroupNames(ctx); err != nil {
 		return err
 	} else {
 		for _, sg := range sgs {
@@ -44,11 +44,11 @@
 	sbutil.AddPermsForPattern(&sgAcl, admin, access.AllTypicalTags()...)
 
 	// Maps all syncgroup prefixes to ACLs.
-	prefixSpec := make(map[nosql_wire.SyncGroupPrefix]access.Permissions)
+	prefixSpec := make(map[nosql_wire.SyncgroupPrefix]access.Permissions)
 
 	// StreamDef : <devId>
 	// Admin client has full permissions, measured drops to readonly.
-	prefixStreamDef := nosql_wire.SyncGroupPrefix{
+	prefixStreamDef := nosql_wire.SyncgroupPrefix{
 		TableName: config.StreamDefTable,
 		RowPrefix: devId,
 	}
@@ -57,7 +57,7 @@
 	sbutil.AddPermsForPattern(&aclStreamDef, admin, access.AllTypicalTags()...)
 	prefixSpec[prefixStreamDef] = aclStreamDef
 
-	var prefixes []nosql_wire.SyncGroupPrefix
+	var prefixes []nosql_wire.SyncgroupPrefix
 	// Apply prefix ACLs to all syncgroup prefixes.
 	for prefix, prefixAcl := range prefixSpec {
 		// Ignore ErrNoAccess, assume we already dropped permissions.
@@ -68,13 +68,13 @@
 		prefixes = append(prefixes, prefix)
 	}
 
-	sgSpec := nosql_wire.SyncGroupSpec{
+	sgSpec := nosql_wire.SyncgroupSpec{
 		Description: fmt.Sprintf("measured-main-%s", devId),
 		Perms:       sgAcl,
 		Prefixes:    prefixes,
 		MountTables: sgMountTables,
 	}
-	sgMemberInfo := nosql_wire.SyncGroupMemberInfo{SyncPriority: config.SyncPriority}
+	sgMemberInfo := nosql_wire.SyncgroupMemberInfo{SyncPriority: config.SyncPriority}
 
-	return db.SyncGroup(sgName).Create(ctx, sgSpec, sgMemberInfo)
+	return db.Syncgroup(sgName).Create(ctx, sgSpec, sgMemberInfo)
 }
diff --git a/go/src/v.io/x/sensorlog/internal/measure/syncgroup_test.go b/go/src/v.io/x/sensorlog/internal/measure/syncgroup_test.go
index 5c2d473..24ba12f 100644
--- a/go/src/v.io/x/sensorlog/internal/measure/syncgroup_test.go
+++ b/go/src/v.io/x/sensorlog/internal/measure/syncgroup_test.go
@@ -31,20 +31,20 @@
 	syncMts := []string{}
 
 	// Creating the syncgroup should succeed.
-	if err := measure.InitSyncGroup(ctxMeasured, db, devId, admin, sbName, syncMts); err != nil {
-		t.Fatalf("InitSyncGroup failed: %v", err)
+	if err := measure.InitSyncgroup(ctxMeasured, db, devId, admin, sbName, syncMts); err != nil {
+		t.Fatalf("InitSyncgroup failed: %v", err)
 	}
 
-	sgName := config.SyncGroupName(sbName, devId)
-	if sgs, err := db.GetSyncGroupNames(ctxMeasured); err != nil {
-		t.Fatalf("GetSyncGroupNames failed: %v", err)
+	sgName := config.SyncgroupName(sbName, devId)
+	if sgs, err := db.GetSyncgroupNames(ctxMeasured); err != nil {
+		t.Fatalf("GetSyncgroupNames failed: %v", err)
 	} else if got, want := sgs, []string{sgName}; !reflect.DeepEqual(got, want) {
-		t.Errorf("GetSyncGroupNames got: %v, want: %v", got, want)
+		t.Errorf("GetSyncgroupNames got: %v, want: %v", got, want)
 	}
 
 	// Creating the syncgroup should be idempotent.
-	if err := measure.InitSyncGroup(ctxMeasured, db, devId, admin, sbName, syncMts); err != nil {
-		t.Errorf("InitSyncGroup should be idempotent, retry failed: %v", err)
+	if err := measure.InitSyncgroup(ctxMeasured, db, devId, admin, sbName, syncMts); err != nil {
+		t.Errorf("InitSyncgroup should be idempotent, retry failed: %v", err)
 	}
 
 	// measured should have dropped privileges on <StreamDefTable>/<devId>.
diff --git a/go/src/v.io/x/sensorlog/measured/measured.go b/go/src/v.io/x/sensorlog/measured/measured.go
index a353c51..ef36609 100644
--- a/go/src/v.io/x/sensorlog/measured/measured.go
+++ b/go/src/v.io/x/sensorlog/measured/measured.go
@@ -26,7 +26,7 @@
 	flagDevId     = flag.String("devid", "", "DevId to be claimed by this measured. Must be specified.")
 	// Flags below are only applied the first time measured is run against a Syncbase service with the same devid.
 	flagAdmin     = flag.String("admin", "", "Blessing of admin user allowed to join the syncgroup. Must be specified.")
-	flagPublishSb = flag.String("publish-sb", "", "Syncbase service to publish the syncgroup at. Must be absolute. Must be specified. The syncgroup is published as '"+config.SyncGroupName("<publish-sb>", "<devid>")+"'.")
+	flagPublishSb = flag.String("publish-sb", "", "Syncbase service to publish the syncgroup at. Must be absolute. Must be specified. The syncgroup is published as '"+config.SyncgroupName("<publish-sb>", "<devid>")+"'.")
 )
 
 func main() {
@@ -58,7 +58,7 @@
 	}
 	vlog.VI(0).Infof("measured connected to %s", db.FullName())
 
-	if err := measure.InitSyncGroup(ctx, db, *flagDevId, *flagAdmin, *flagPublishSb, publishMts); err != nil {
+	if err := measure.InitSyncgroup(ctx, db, *flagDevId, *flagAdmin, *flagPublishSb, publishMts); err != nil {
 		vlog.Errorf("Failed initializing syncgroup: %v", err)
 		return 1
 	}