Update backup functionality

* Add option to disable automatic backups
* Add link to backup documentation
* Rearrange backup sections

app/src/main/java/org/tasks/jobs/BackupWork.kt

@@ -34,6 +34,10 @@ class BackupWork @WorkerInject constructor(
     override suspend fun scheduleNext() = workManager.scheduleBackup()
 
     private suspend fun startBackup(context: Context?) {
+        if (!preferences.getBoolean(R.string.p_backups_enabled, true)) {
+            Timber.d("Automatic backups disabled")
+            return
+        }
         try {
             deleteOldLocalBackups()
         } catch (e: Exception) {

app/src/main/res/values/keys.xml

@@ -373,6 +373,7 @@
   <string name="p_show_whats_new">show_whats_new</string>
   <string name="p_just_updated">just_updated</string>
   <string name="p_clicked_rate">clicked_rate</string>
+  <string name="p_backups_enabled">backups_enabled</string>
   <string name="p_backups_android_backup_enabled">backups_android_backup_enabled</string>
   <string name="p_backups_android_backup_last">backups_android_backup_last</string>
   <string name="p_current_version">cv</string>

app/src/main/res/values/strings.xml

@@ -637,6 +637,7 @@ File %1$s contained %2$s.\n\n
   <string name="reset_sort_order">Reset sort order</string>
   <string name="permission_read_tasks">Full access to Tasks database</string>
   <string name="account_not_found">Account not found</string>
+  <string name="automatic_backups">Automatic backups</string>
   <string name="android_auto_backup">Android Backup Service</string>
   <string name="android_auto_backup_device_summary">You must also opt in to backup service through your device settings. Not all devices provide backup service.</string>
   <string name="last_backup">Last backup: %s</string>

app/src/main/res/xml/preferences_backups.xml

@@ -2,9 +2,20 @@
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:app="http://schemas.android.com/apk/res-auto">
 
+  <Preference
+    android:title="@string/documentation"
+    android:icon="@drawable/ic_open_in_new_24px">
+
+    <intent
+      android:action="android.intent.action.VIEW"
+      android:data="https://tasks.org/backups" />
+
+  </Preference>
+
   <Preference
     android:key="@string/p_backup_dir"
-    android:title="@string/backup_directory" />
+    android:title="@string/backup_directory"
+    app:allowDividerAbove="true" />
 
   <Preference
     android:key="@string/backup_BAc_import"
@@ -15,17 +26,13 @@
     android:title="@string/backup_BAc_export" />
 
   <PreferenceCategory
-    android:title="@string/google_drive_backup">
+    android:title="@string/automatic_backups">
 
     <SwitchPreferenceCompat
-      android:key="@string/google_drive_backup"
+      android:key="@string/p_backups_enabled"
+      android:defaultValue="true"
       android:title="@string/enabled" />
 
-    <Preference
-      android:key="@string/p_google_drive_backup_account"
-      android:title="@string/account"
-      android:summary="@string/none"/>
-
   </PreferenceCategory>
 
   <PreferenceCategory
@@ -45,4 +52,18 @@
 
   </PreferenceCategory>
 
+  <PreferenceCategory
+    android:title="@string/google_drive_backup">
+
+    <SwitchPreferenceCompat
+      android:key="@string/google_drive_backup"
+      android:title="@string/enabled" />
+
+    <Preference
+      android:key="@string/p_google_drive_backup_account"
+      android:title="@string/account"
+      android:summary="@string/none"/>
+
+  </PreferenceCategory>
+
 </PreferenceScreen>