I am currently not aware of preexisting script that does this, so I believe this is something you would have to create yourself.
The challenge would be parsing the preexisting html to json block supported content.
- Blocks are full-width elements, usually at the root of the content. The available options are:
- paragraph
- heading (receives
level) - list (receives
format) - quote
- code (receives
plainText) - image (receives
image) - link (receives
url)
- Modifiers are inline elements, used to change the appearance of fragments of text within a block. The available options are:
- bold
- italic
- underline
- strikethrough
- code
I haven’t tried to do this yet, so not sure at level of complexity it would take.
You incremental strategy to update might be a better approach to get started with.