[Project] Schema Differencing API

[StefanApfel-Bentley]

Goal
The Schema Difference API shall provide a lightweight interface to get the differences between two given schemas. The output is a result containing the differences itself (with added, modified or removed schema elements) and possible conflicts.

Internally, the differences api utilizes the schema comparer component.
While the api can be used in every usecase, it's intend to be used with the Schema Merging API to allow user-specific schema customizing.

Repository
https://github.com/iTwin/itwinjs-core/tree/master/core/ecschema-editing/src/Differencing

Wiki
https://bentleycs.visualstudio.com/iModelTechnologies/_wiki/wikis/iModelTechnologies.wiki/53668/Schema-Differencing-API

Difference API

Beta Give feedback

1. Schema Differences API #6269
   ecschema +1
   
2. Schema Difference API Wiki #6874
   documentation ecschema +2
   
3. Switch from Schema Validation Changes to Differencing API #6538
   ecschema +1
   
4. Update Schema Merge tests to use the Difference API instead of two schemas #6528
   ecschema +1
   
5. Rename SchemaDifferences changes property to differences #6743
   ecschema +1
   
6. Improve Naming of Schema Difference api #6854
   ecschema +1
   
7. Add support for removed schema elements #6862
   +0

Difference Conflicts API

Beta Give feedback

1. Add validation on schema reference differences #6637
   ecschema +1
   
2. Add validation for class items attributes #6796
   ecschema +1
3. Add validation for properties with differencing units
4. Provide unique conflict-id that can be used to track the particular conflict