add API endpoint to delete project metadata

[vladak]

#3548 presents a use case where it would be helpful to be able to remove just the project metadata, i.e. Project and related Repository objects, e.g. /projects/{project}/metadata with DELETE.

[harshachinta]

@vladak
I would like to give a try on this. Can you please give me few more details on this please?

[vladak]

take a look at ProjectController, this should be a small change there.

[harshachinta]

@vladak

I had a look at the ProjectController file.
Currently we have 2 delete API's,

1. /{project} DELETE API which handles deleting the entire project -> removing index data, removing project from its groups, removing repositories associated with that project.
   

2. /{project}/data DELETE API which handles deleting the index and history cache.
   

Question
Should the current DELETE API /projects/{project}/metadata delete just the repositories of that project and not the project data? Can you please correct me if my understanding is wrong.

I am a bit confused of what is meant by project metadata that was mentioned in heading of this issue.

[ahornace]

Metadata - what OpenGrok instance knows
Data - actual files on the filesystem

Basically do the same as the already present implementation without removing any files.

[tyagi-data-wizard]

Hello @vladak / @ahornace ,
Please see the PR, let me know if any improvements are needed.