Design change: require filename (or -)

[simonw]

The tool currently lets you do this:

cat data.csv | openai-to-sqlite embeddings embeddings.db

But this is a bit weird, it means if you run openai-to-sqlite embeddings embeddings.db it will hang waiting for input.

If you want to specify a file you have to use the -i option:

openai-to-sqlite embeddings embeddings.db -i data.csv

I'm going to change it to require the filename as a positional argument, and support - to mean standard input.

[simonw]

Actually no it has to still be optional because of --sql - you should get an error if you omit it without including --sql though.