Summary

Add the first steps towards a Julia client basing on the Extern C interface of caosdb-cpplib. The client is able to connect to a server using SSL and retrieve the version of the server, see https://gitlab.indiscale.com/caosdb/customers/lfpb/management/-/issues/403.

Focus

All relevant modules are in src/CaosDB.jl, the README_SETUP.md has been updated accordingly.

Test Environment

Build and install caosdb-cpplib in the f-extern-c branch and make the location of libccaosdb.so known to Julia's ccall, e.g., by adding it to your LD_LIBRARY_PATH. Then start a CaosDB server in f-grpc-dev, e.g., by using caosdb-deploy in f-grpc.

Then, start julia with the --project option from the caosdb-julialib directory, or, alternatively, start Julia and add CaosDB.jl by

julia> ]add "path/to/caosdb-julialib"

Establish a connection via

julia> using CaosDB
julia> CaosDB.Connection.connect(host="...", port="...", cacert="...", username="...", password="...")

You may omit some or all parameters in the call to CaosDB.Connection.connect if the default values apply to you or if you defined the corresponding environmental variables.

Check List for the Author

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• All automated tests pass
• Reference related Issues
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  • Intent of new code
  • Problems with old code
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Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md
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