Are there any diffing mechanisms for mobiledoc ?

[alexparker]

Looking at ways to provide quality diffing on rich user input, and there doesn't seem to be a whole lot of options.

[kevinansfield]

I'm interested in something like this too so that we could handle two users editing the same document a little more gracefully server-side. In my initial research I looked at JSON diffing libraries such as https://github.com/andreyvit/json-diff but haven't tried it against mobiledoc yet.

[alexparker]

Seems like it'd have to be pretty specific implementation using the json-diff (or the like) coupled to the mobiledoc structure/format.

[alexparker]

Creating 2 versions of text:

Version 1:

{"version": "0.3.1", "atoms": [], "cards": [], "markups": [], "sections": [[1, "p", [[0, [], 0, "Hello my name is alex, that's my name."] ] ] ] }

Renders:

Hello my name is alex, that's my name.

Version 2:

{"version": "0.3.1", "atoms": [], "cards": [], "markups": [["strong"] ], "sections": [[1, "p", [[0, [], 0, "Hello my name is "], [0, [0 ], 1, "alex,"], [0, [], 0, " that's my name."] ] ] ] }

Renders:

Hello my name is alex, that's my name.

Exploring the diff:

Using https://benjamine.github.io/jsondiffpatch/demo/index.html

Paste the 2 versions into the left / right inputs

Perhaps someone versed with mobiledoc could pitch in and help explore if this would be easy to render as a visual diff of the two versions.

[reconbot]

at bustle we use a fork of a diff/patch for storage of revisions https://github.com/bustle/yadiffjson/

And then render to html and use https://www.npmjs.com/package/htmldiff which is super old but works (haven't touched this part of our code in a long while).