Sync media according to new Bucket Folder settings

[alimuzzaman]

This new sync method will allow the user to move files after change the Bucket Folder value.

• We won't do regeneration to increase performance.

• Add sync link in the Media library.

• We will copy the files to the new location on GCS.

• Also copy the file to the new location in the server if available.

[alimuzzaman]

@ewsopp @planv
This might cause a problem with hardcoded URLs in pages/posts.
Maybe we should add a warning.

[ewsopp]

Do we delete files when doing a sync?

[alimuzzaman]

@antonkorotkov will it be viable to replace old URLs with the new URL in post content/meta for all attachments?

For example if a site have lots of posts.

[alimuzzaman]

@ewsopp

Do we delete files when doing a sync?

No. But this can be a problem for site with lots of media.

[alimuzzaman]

@planv is this option was added to CLI?

[planv]

@alimuzzaman Not yet.

• Add new sync option to CLI

I will add it after we finish new sync method on admin panel.