feat: search current working directory for config file

[IndexSeek]

Resolves #1333

Adds the current working directory to the search path for the .pyiceberg.yaml file.

As it is now, the file is searched in the following order:

1. the PYICEBERG_HOME environment variable
2. ~/
3. ./

I'm unsure if people would like to have 2 and 3 swapped. In either case, users can still override this with the environment variable.

[kevinjqliu]

Thanks for the PR! Added a few nit comments

[kevinjqliu]

there are a couple other places where pyiceberg.yaml is referenced in the docs
https://grep.app/search?q=pyiceberg.yaml&filter[repo][0]=apache/iceberg-python&filter[path][0]=mkdocs/docs/

[IndexSeek]

Nice finds! That grep tool is pretty neat. I just made some corrections to these in 3ebbb8c.

[kevinjqliu]

nit: also add test https://grep.app/search?q=pyiceberg.yaml&filter[repo][0]=apache/iceberg-python&filter[path][0]=tests/

[IndexSeek]

I tried adding a test here, but I wonder if there are opportunities to clean it up.

[kevinjqliu]

Thanks for the PR! I added some nit comments on testing

[IndexSeek]

There's another test that looks to do something similar to this newer test. Are both needed?

iceberg-python/tests/utils/test_config.py

Lines 58 to 65 in 0e5086c

	def test_from_configuration_files(tmp_path_factory: pytest.TempPathFactory) -> None:
	config_path = str(tmp_path_factory.mktemp("config"))
	with open(f"{config_path}/.pyiceberg.yaml", "w", encoding=UTF8) as file:
	yaml_str = as_document({"catalog": {"production": {"uri": "https://service.io/api"}}}).as_yaml()
	file.write(yaml_str)
	os.environ["PYICEBERG_HOME"] = config_path
	assert Config().get_catalog_config("production") == {"uri": "https://service.io/api"}

[Fokko]

I've left one comment, but apart from that, it looks good to me 👍

[IndexSeek]

I've left one comment, but apart from that, it looks good to me 👍

Thank you! I applied that change! ✅