Feature gate object_store and reqwest

Cargo.toml

@@ -15,14 +15,19 @@ flate2 = "1.0.20"
 futures = "0.3.31"
 jpeg = { package = "jpeg-decoder", version = "0.3.0", default-features = false }
 num_enum = "0.7.3"
-object_store = "0.12"
+object_store = { version = "0.12", optional = true }
 # In the future we could make this feature-flagged, but for now we depend on
 # object_store which uses reqwest.
-reqwest = { version = "0.12", default-features = false }
+reqwest = { version = "0.12", default-features = false, optional = true }
 thiserror = "1"
 tokio = { version = "1.43.0", optional = true }
 weezl = "0.1.0"
 
 [dev-dependencies]
 tiff = "0.9.1"
 tokio = { version = "1.9", features = ["macros", "fs", "rt-multi-thread"] }
+
+[features]
+default = ["object_store"]
+reqwest = ["dep:reqwest"]
+object_store = ["dep:object_store", "reqwest"]

src/cog.rs

@@ -56,6 +56,7 @@ impl TIFF {
     }
 }
 
+#[cfg(feature = "object_store")]
 #[cfg(test)]
 mod test {
     use std::io::BufReader;

src/error.rs

@@ -24,6 +24,7 @@ pub enum AsyncTiffError {
     JPEGDecodingError(#[from] jpeg::Error),
 
     /// Error while fetching data using object store.
+    #[cfg(feature = "object_store")]
     #[error(transparent)]
     ObjectStore(#[from] object_store::Error),
 
@@ -32,6 +33,7 @@ pub enum AsyncTiffError {
     InternalTIFFError(#[from] crate::tiff::TiffError),
 
     /// Reqwest error
+    #[cfg(feature = "reqwest")] // see https://www.reddit.com/r/rust/comments/xyik51/comment/irhei39/
     #[error(transparent)]
     ReqwestError(#[from] reqwest::Error),
 

src/reader.rs

@@ -9,6 +9,7 @@ use byteorder::{BigEndian, LittleEndian, ReadBytesExt};
 use bytes::buf::Reader;
 use bytes::{Buf, Bytes};
 use futures::future::{BoxFuture, FutureExt, TryFutureExt};
+#[cfg(feature = "object_store")]
 use object_store::ObjectStore;
 
 use crate::error::{AsyncTiffError, AsyncTiffResult};
@@ -91,12 +92,13 @@ impl AsyncFileReader for Box<dyn AsyncFileReader + '_> {
 // }
 
 /// An AsyncFileReader that reads from an [`ObjectStore`] instance.
+#[cfg(feature = "object_store")]
 #[derive(Clone, Debug)]
 pub struct ObjectReader {
     store: Arc<dyn ObjectStore>,
     path: object_store::path::Path,
 }
-
+#[cfg(feature = "object_store")]
 impl ObjectReader {
     /// Creates a new [`ObjectReader`] for the provided [`ObjectStore`] and path
     ///
@@ -105,7 +107,7 @@ impl ObjectReader {
         Self { store, path }
     }
 }
-
+#[cfg(feature = "object_store")]
 impl AsyncFileReader for ObjectReader {
     fn get_bytes(&self, range: Range<u64>) -> BoxFuture<'_, AsyncTiffResult<Bytes>> {
         let range = range.start as _..range.end as _;
@@ -134,19 +136,20 @@ impl AsyncFileReader for ObjectReader {
 }
 
 /// An AsyncFileReader that reads from a URL using reqwest.
+#[cfg(feature = "reqwest")]
 #[derive(Debug, Clone)]
 pub struct ReqwestReader {
     client: reqwest::Client,
     url: reqwest::Url,
 }
-
+#[cfg(feature = "reqwest")]
 impl ReqwestReader {
     /// Construct a new ReqwestReader from a reqwest client and URL.
     pub fn new(client: reqwest::Client, url: reqwest::Url) -> Self {
         Self { client, url }
     }
 }
-
+#[cfg(feature = "reqwest")]
 impl AsyncFileReader for ReqwestReader {
     fn get_bytes(&self, range: Range<u64>) -> BoxFuture<'_, AsyncTiffResult<Bytes>> {
         let url = self.url.clone();