Sync default directory

[davidmosterd]

The current way sync is enabled is a compromise between developers (A) and people who feel less comfortable writing code (B).

For B there is the simple ingredient of creating the acp-sync dir in the theme folder. However, for A this is not an explicit intend in the code to enable or disable this feature.

Therefore I propose to have a filter that explicitly enables or disabled this feature. The default behavior is that the feature is disabled. However, with a filter e.g. acp/sync/enable you can enable it.

As a convenience, you can add a second parameter which is the path to save. When you omit this, the default directory will be used.

Our own code will run on the same filter but on a low priority (e.g. 5). It will check if the default dir exists and if it does, return true and set the default directory.

This basically means you have two filters: one to enable or disable the sync and one to tell where you want to save. The first filter also allows you the hook into the second for convenience.

[davidmosterd]

no longer needed in current setup