v0.27.0

Upgrade to v0.27

In v0.27, we refactored our list related logic and added scan support. So make Pager and BlockingPager associated types in Accessor too!

pub trait Accessor: Send + Sync + Debug + Unpin + 'static {
    type Reader: output::Read;
    type BlockingReader: output::BlockingRead;
+    type Pager: output::Page;
+    type BlockingPager: output::BlockingPage;
}

User defined layers

Due to this change, all layers implementation should be changed. If there is not changed over pager, they can by changed like the following:

impl<A: Accessor> LayeredAccessor for MyAccessor<A> {
    type Inner = A;
    type Reader = MyReader<A::Reader>;
    type BlockingReader = MyReader<A::BlockingReader>;
+    type Pager = A::Pager;
+    type BlockingPager = A::BlockingPager;

+    async fn list(&self, path: &str, args: OpList) -> Result<(RpList, Self::Pager)> {
+        self.inner.list(path, args).await
+    }

+    async fn scan(&self, path: &str, args: OpScan) -> Result<(RpScan, Self::Pager)> {
+        self.inner.scan(path, args).await
+    }

+    fn blocking_list(&self, path: &str, args: OpList) -> Result<(RpList, Self::BlockingPager)> {
+        self.inner.blocking_list(path, args)
+    }

+    fn blocking_scan(&self, path: &str, args: OpScan) -> Result<(RpScan, Self::BlockingPager)> {
+        self.inner.blocking_scan(path, args)
+    }
}

Usage of ops

To reduce the understanding overhead, we move all OpXxx into opendal::ops now. User may need to change:

- use opendal::OpWrite;
+ use opendal::ops::OpWrite;

Usage of RetryLayer

backon is the implementation detail of our RetryLayer, so we hide it from our public API. Users of RetryLayer need to change the code like:

- RetryLayer::new(backon::ExponentialBackoff::default())
+ RetryLayer::new()

---

What's Changed

• ci: Fix dev container Dockerfile by @PsiACE in #1298
• fix: Rocksdb's scheme not output correctly by @Xuanwo in #1300
• refactor: Hide backon from our public API by @Xuanwo in #1302
• refactor: Don't expose ops structs to users directly by @Xuanwo in #1303
• feat: Add Retryable Pager Support by @ClSlaid in #1304
• refactor: Move and rename ObjectPager and ObjectEntry for more clear semantics by @Xuanwo in #1308
• refactor: Implement strong typed pager by @Xuanwo in #1311
• feat: Add Sled support by @jkleinknox in #1305
• chore: fix name typo in oss backend by @wcy-fdu in #1316
• feat: Add Object::scan() support by @Xuanwo in #1314
• feat: Add object page size support by @Xuanwo in #1318
• chore: Add typos-cli and fix typos by @Xuanwo in #1320
• deps: remove unused deps by @xxchan in #1321
• docs: Add risingwave in projects by @Xuanwo in #1322
• refactor: Extract scan as a new API and remove ListStyle by @Xuanwo in #1324
• Bump to version 0.27 by @Xuanwo in #1325

New Contributors

• @jkleinknox made their first contribution in #1305
• @wcy-fdu made their first contribution in #1316
• @xxchan made their first contribution in #1321

Full Changelog: v0.26.2...v0.27.0