cluster: decouple getRegion() from finishRegion()

Signed-off-by: Alejandro Mery <amery@jpi.io>

pkg/cluster/regions.go

@@ -147,7 +147,7 @@ func (m *Cluster) finishRegion(r *Region) {
 	r.m = m
 	sub := []string{}
 	for _, name := range r.Regions {
-		r2, ok := m.getRegion(name)
+		r2, ok := m.getFinishRegion(name)
 		if !ok {
 			m.warn(nil).WithField("region", name).Print("unknown region")
 			continue
@@ -162,9 +162,7 @@ func (m *Cluster) finishRegion(r *Region) {
 func (m *Cluster) getRegion(name string) (*Region, bool) {
 	for i := range m.Regions {
 		r := &m.Regions[i]
-
 		if name == r.Name {
-			m.finishRegion(r)
 			return r, true
 		}
 	}
@@ -172,6 +170,15 @@ func (m *Cluster) getRegion(name string) (*Region, bool) {
 	return nil, false
 }
 
+func (m *Cluster) getFinishRegion(name string) (*Region, bool) {
+	if r, ok := m.getRegion(name); ok {
+		m.finishRegion(r)
+		return r, true
+	}
+
+	return nil, false
+}
+
 // SyncRegions writes to the file system the regions this [Zone]
 // belongs to.
 func (z *Zone) SyncRegions() error {