Upgrade path from 1.x to 2.x

+1 on the patch from #3.

Error messages are gone, so is the old field, and the commerce_addressbook_defaults table created successfully! Thanks so much!

This also solves #1502120: Undefined index: commerce_addressbook_saved_profiles, so I marked it as a duplicate of this issue.

Hi, +1 to commit patch from #3. Thanks.
greetings, Martijn

+  foreach (field_info_fields() as $field) {
+    if ('commerce_addressbook_saved_profiles' == $field['type']) {
+      field_delete_field($field['field_name']);
+    }
+  }

This can't work, because at that point the field type no longer exists (it was in Addressbook 1.x and you've replaced those files with Addressbook 2.x).

The issue that you actually want is #1311470: Provide missing uninstall code.
That will allow you to uninstall Addressbook 1.x, which will delete the fields.
Then, when you install 2.x, the defaults table will be created, and all will be well.
The flow needs to be like that (uninstall -> update -> install).

Here's some background information for you: #943772: field_delete_field() and others fail for inactive fields.
So yes, it works, but the field is still there with all its data, it has just been marked as inactive so it's not shown. Spending 5 minutes more (on reinstalling) to ensure there's no garbage data left in the database seems like a fair tradeoff to me.

It is resolved if you don't provide a field type AND create instances of that type in the same module, which is exactly what Addressbook did.
So because of that you can't disable Addressbook 1.x in the first place
However, I was wrong in thinking that's a problem, since you can just replace the files with 2.x ones without disabling the module.

So let's give it a shot anyway.
Here's what needs to be done:
1) Only do the update if the defaults table doesn't exist already (so that it doesn't run for existing 7.x-2.x users)
2) Remove the field_purge call, it's useless.
3) Replace the foreach (field_info_fields() as $field) { loop with a call to commerce_delete_fields('commerce_addressbook_saved_profiles');
4) See if it works.

Can you do a reroll?

+1 on #12 patch. I was getting Call to undefined function commerce_addressbook_field_is_empty(). Applied patch the .install and updated the db. All cleaned up.

Added information to the README and committed the patch. Thank you!