feat(csharp): Add csharp interop

[davidhcoe]

What's Changed

Ports over the current state of https://github.com/apache/arrow-adbc/tree/main/csharp/src/Drivers/Interop/Snowflake, changed the namespace, updated headers and build scripts.

[lidavidm]

For files ported from the Apache repo, we need to keep the original license header and add the attribution text (same as for other files)

[davidhcoe]

For files ported from the Apache repo, we need to keep the original license header and add the attribution text (same as for other files)

I kept going through the pre-commit check until it didn't fail anymore. I would get details like:

Apache RAT Check.........................................................Failed
- hook id: rat
- exit code: 6

Checking licenses for C:\dev\davidhcoe\adbc-drivers-snowflake
Using Apache RAT: C:\Users\davidcoe\AppData\Local\ADBC Driver Foundry\adbc-drivers-dev\Cache\apache-rat-0.16.1.jar
Files missing ADBC Drivers Contributors copyright header:
- csharp/test/Interop/Resources/snowflakeconfig.json
Files that should not have 'This file has been modified' header:
- csharp/src/Interop/Build-SnowflakeDriver.ps1
- csharp/src/Interop/copySnowflakeDriver.sh
- csharp/src/Interop/readme.md
- csharp/test/Interop/Resources/SnowflakeConstraints.sql
- csharp/test/Interop/Resources/SnowflakeData.sql

and that all clears now. Is there something else I need to do?

[lidavidm]

I think instead of taking out the 'this file has been modified' part instead we should list the files in /.rat-apache

[lidavidm]

(I should update the check to make that clear)

[davidhcoe]

Well, technically speaking, the .cs files have all had their namespace changed, so that is a change. The csharp/src/Interop/Build-SnowflakeDriver.ps1 file is different, and various others to match the namespace. Very few actually copied over directly, but I just followed what was in the pre-commit. Do you want me to make the correct updates then add the "unchanged" ones to .rat-apache?

[lidavidm]

If they were copied then modified, they should have the "modified" header. If they were written for this PR, then they can have the regular header. .rat-apache lists ones that were copied then modified. I think the latest commit looks about right

[davidhcoe]

yes.. I think it should be good now.

[lidavidm]

I think this needs the 'modified' bit in the header

[lidavidm]

Same here (I guess I need to make the check look for "Licensed to the Apache Software Foundation...")

[lidavidm]

adbc-drivers/dev#22

[lidavidm]

Ditto here

[lidavidm]

Ditto here

[lidavidm]

Ditto here

[lidavidm]

FYI @davidhcoe it seems your Git has no email configured - is this intentional?

Co-authored-by: David Coe <>

[davidhcoe]

FYI @davidhcoe it seems your Git has no email configured - is this intentional?

Co-authored-by: David Coe <>

This account has been used for personal, professional and educational projects, each with separate email accounts, so I just didn't assign one.