refs TryGhost/Team#2904
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This pull request adds support for multiple formats of snippet content,
especially the `lexical` format, to the Ghost CMS. It modifies the
snippets API, model, and test files to handle the format conversion,
filtering, and serialization of snippets.
refs https://github.com/TryGhost/Team/issues/2400
- we've deemed it useful to start to return `Content-Version` for all
API requests, because it becomes useful to know which version of Ghost
a response has come from in logs
- this should also help us detect Admin<->Ghost API mismatches, which
was the cause of a bug recently (ref'd issue)
refs: https://github.com/TryGhost/Ghost/issues/14882
- I found a common pattern where catch predicates were being used to catch non-existent models in destroy methods, and sometimes elsewhere in the API endpoints
- The use of predicates is deprecated, and we're working to remove them from everywhere, so that we can remove bluebird
- In order to still handle these errors correctly, we needed a small change to mw-error-handler so that it can detect EmptyResponse errors from bookshelf, as well as 404s
Note: there is a small change as a result of this - the context on these errors now says "Resource not found" instead of "{ModelName} not found".
- I think this is acceptable for now, as we will be reviewing these errors in more depth later. It's quite easy to make changes, we just have to decide what with proper design input
refs https://github.com/TryGhost/Toolbox/issues/354
- this commit turns the Ghost repo into a monorepo so we can bring our
internal packages back in, which makes life easier when working on
Ghost
