switch source indexing schedule to a per-source setting

app/sync/migrations/0012_auto_20201207_0415.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.1.4 on 2020-12-07 04:15
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('sync', '0011_auto_20201206_0911'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='source',
+            name='index_schedule',
+            field=models.IntegerField(db_index=True, default=21600, help_text='Schedule of when to index the source for new media', verbose_name='index schedule'),
+        ),
+        migrations.AlterField(
+            model_name='source',
+            name='source_acodec',
+            field=models.CharField(choices=[('MP4A', 'MP4A'), ('OPUS', 'OPUS')], db_index=True, default='OPUS', help_text='Source audio codec, desired audio encoding format to download', max_length=8, verbose_name='source audio codec'),
+        ),
+    ]

app/sync/migrations/0013_auto_20201207_0439.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1.4 on 2020-12-07 04:39
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('sync', '0012_auto_20201207_0415'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='source',
+            name='index_schedule',
+            field=models.IntegerField(choices=[(3600, 'Every hour'), (7200, 'Every 2 hours'), (10800, 'Every 3 hours'), (14400, 'Every 4 hours'), (18000, 'Every 5 hours'), (21600, 'Every 6 hours'), (43200, 'Every 12 hours'), (86400, 'Every 24 hours')], db_index=True, default=21600, help_text='Schedule of how often to index the source for new media', verbose_name='index schedule'),
+        ),
+    ]