feat: initial bigwig batch reader (#469)

Cargo.toml

@@ -29,6 +29,7 @@ members = [
   "exon/exon-test",
   "exon/exon-vcf",
   "exon/exon-cram",
+  "exon/exon-bigwig",
 ]
 exclude = ["python"]
 resolver = "2"

exon/exon-bigwig/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+description = "Subcrate of the `exon` crate for working with BigWig files."
+edition.workspace = true
+homepage.workspace = true
+license.workspace = true
+name = "exon-bigwig"
+readme.workspace = true
+repository.workspace = true
+version.workspace = true
+
+[dependencies]
+arrow = { workspace = true }
+exon-common = { path = "../exon-common", version = "0.15.0" }
+noodles = { workspace = true, features = ["core"] }
+futures = { workspace = true }
+bigtools = "0.4.2"
+object_store = { workspace = true }
+tokio = { workspace = true }
+tokio-util = { workspace = true }

exon/exon-bigwig/src/lib.rs

@@ -0,0 +1,22 @@
+// Copyright 2024 WHERE TRUE Technologies.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+mod value_batch_reader;
+mod zoom_batch_reader;
+
+pub use zoom_batch_reader::BigWigZoomConfig;
+pub use zoom_batch_reader::ZoomRecordBatchReader;
+
+pub use value_batch_reader::BigWigValueConfig;
+pub use value_batch_reader::ValueRecordBatchReader;