Do OPENDAL_B2_* environment variables work?

[HaleTom]

There are several B2 variables listed in this .env example:

OPENDAL_B2_ROOT=/path/to/dir
OPENDAL_B2_BUCKET=<bucket>
OPENDAL_B2_BUCKET_ID=<bucket_id>
OPENDAL_B2_APPLICATION_KEY_ID=<key_id>
OPENDAL_B2_APPLICATION_KEY=<application_key>

I can't find these anywhere else in the codebase. Do these actually work?

[Xuanwo]

I can't find these anywhere else in the codebase. Do these actually work?

Yes. We actually have them tested in CI: https://github.com/apache/opendal/blob/main/.github/services/b2/b2/action.yml

---

The test logic happens here:

opendal/core/src/raw/tests/utils.rs

Lines 39 to 86 in 39e0a69

	pub fn init_test_service() -> Result<Option<Operator>> {
	let _ = dotenvy::dotenv();
	let scheme = if let Ok(v) = env::var("OPENDAL_TEST") {
	v
	} else {
	return Ok(None);
	};
	let scheme = Scheme::from_str(&scheme).unwrap();
	let prefix = format!("opendal_{scheme}_");
	let mut cfg = env::vars()
	.filter_map(|(k, v)| {
	k.to_lowercase()
	.strip_prefix(&prefix)
	.map(|k| (k.to_string(), v))
	})
	.collect::<HashMap<String, String>>();
	// Use random root unless OPENDAL_DISABLE_RANDOM_ROOT is set to true.
	let disable_random_root = env::var("OPENDAL_DISABLE_RANDOM_ROOT").unwrap_or_default() == "true";
	if !disable_random_root {
	let root = format!(
	"{}{}/",
	cfg.get("root").cloned().unwrap_or_else(|| "/".to_string()),
	uuid::Uuid::new_v4()
	);
	cfg.insert("root".to_string(), root);
	}
	let op = Operator::via_map(scheme, cfg).expect("must succeed");
	#[cfg(feature = "layers-chaos")]
	let op = { op.layer(layers::ChaosLayer::new(0.1)) };
	let mut op = op
	.layer(layers::LoggingLayer::default().with_backtrace_output(true))
	.layer(layers::TimeoutLayer::new())
	.layer(layers::RetryLayer::new().with_max_times(4));
	// Enable blocking layer if needed.
	if !op.info().full_capability().blocking {
	let _guard = TEST_RUNTIME.enter();
	op = op.layer(layers::BlockingLayer::create().expect("blocking layer must be created"));
	}
	Ok(Some(op))

We will load the service credentials specified by OPENDAL_TEST, initialize this service, and use it for testing.

---

Are you encountering errors when testing against b2? I might be able to help.

[HaleTom]

Thanks @Xuanwo.

I linked to this issue from:

rustic: OPENDAL_B2_* variables don't work #1073
rustic-rs/rustic#1073

[Xuanwo]

Sure, let's continue the discussion at rustic-rs/rustic#1073 instead. I believe this isn't an issue for opendal. Feel free to reopen this if you need further discussion.