add usage type tracking

[kylemcnair]

Summary
This PR adds tracking to differentiate diffs triggered by CLI vs Python API

Detail

• adds set_usage_mode(str) to tracking.py
• sets usage mode to "CLI" and "Python API" in __main__ and __init__ respectively
• passes usage mode as event properties

I called it "usage mode", but am very very open to alternative naming conventions if something better communicates this property.

Testing
Example Python API diff:

Example CLI diff

Formatting

data-diff [track_cli_vs_python●] black data_diff/tracking.py                                            
All done! ✨ 🍰 ✨
1 file left unchanged.

[erezsh]

We can call it "entrypoint name".

Btw, just set the default value to "api". We only need change the value when running from main.

[kylemcnair]

We can call it "entrypoint name".

Btw, just set the default value to "api". We only need change the value when running from main.

That makes sense, updated 👍

[erezsh]

Great. Any chance you can flatten them into 1 commit? (using rebase)

Also, a tiny detail, better to change the str param to something else, since str is a built in type, and it might be a little confusing. You can rename it to name or even s.

[kylemcnair]

Great. Any chance you can flatten them into 1 commit? (using rebase)

Also, a tiny detail, better to change the str param to something else, since str is a built in type, and it might be a little confusing. You can rename it to name or even s.

Done!