[gnome-contacts] Revert "Store: add contacts in a separate thread."

[Niels De Graef <nielsdg src gnome org>]

commit 7b441e3bbfcbe72e12ba694bd3f7082598059cca
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Sat May 5 11:50:16 2018 +0200

    Revert "Store: add contacts in a separate thread."
    
    This reverts commit 9c256a5c7917a01f844c43501468c4700a4fcc28.
    
    Tried adding multithreading a bit too naively at that point. It's
    possible to get it working using a Glib.RWLock, but that makes the code
    whole lot less clean, so I don't want to use that. In the long term, we
    need to think of a good strategy for this problem (such as possibly not
    having a separate arraylist for the Contacts anymore).

 src/contacts-store.vala | 30 +++++++-----------------------
 1 file changed, 7 insertions(+), 23 deletions(-)
---
diff --git a/src/contacts-store.vala b/src/contacts-store.vala
index 5b7c715..3b75a88 100644
--- a/src/contacts-store.vala
+++ b/src/contacts-store.vala
@@ -176,20 +176,10 @@ public class Contacts.Store : GLib.Object {
     var replaced_individuals = new HashMap<Individual?, Individual?> ();
     var old_individuals = changes.get_keys();
 
-    // At startup, a mass of contacts are added here: so, do this in a separate thread.
-    var added_individuals = changes[null];
-    if (!added_individuals.is_empty) {
-      new Thread<void*> (null, () => {
-          bulk_add (added_individuals);
-          return null;
-        });
-    }
-
     // Pick best replacements at joins
     foreach (var old_individual in old_individuals) {
       if (old_individual == null)
         continue;
-
       foreach (var new_individual in changes[old_individual]) {
         if (new_individual == null)
           continue;
@@ -212,6 +202,9 @@ public class Contacts.Store : GLib.Object {
           // Removing an old individual.
           var c = Contact.from_individual (old_individual);
           remove (c);
+        } else if (new_individual != null) {
+          // Adding a new individual.
+          add (new Contact (this, new_individual));
         }
       }
 
@@ -238,9 +231,7 @@ public class Contacts.Store : GLib.Object {
           if (i != main_individual) {
             // Already replaced this old_individual, i.e. we're splitting
             // old_individual. We just make this a new one.
-            var new_contact = new Contact (this, i);
-            this.contacts.add (new_contact);
-            added (new_contact);
+            add (new Contact (this, i));
           }
         }
       }
@@ -286,16 +277,9 @@ public class Contacts.Store : GLib.Object {
     return contacts.read_only_view;
   }
 
-  private void bulk_add (Collection<Individual> indivs) {
-    foreach (var individual in indivs) {
-      var c = new Contact (this, individual);
-      this.contacts.add (c);
-      // Since we do this in a separate thread, use Idle.add.
-      Idle.add (() => {
-          added (c);
-          return false;
-        });
-    }
+  private void add (Contact c) {
+    contacts.add (c);
+    added (c);
   }
 
   private void remove (Contact c) {