deps: Fix deps to actually work, not just compile, in wasm-browser (#201)

## Description

While this will currently compile to wasm, when running in the browser,
any reference to `std::time` will explode with unsupported platform
errors, this fixes that.

## Breaking Changes

<!-- Optional, if there are any breaking changes document them,
including how to migrate older code. -->

## Notes & open questions

Note: replaces #194 which is obsolete due to the change to n0-error

## Change checklist

- [ ] Self-review.
- [ ] Documentation updates following the [style
guide](https://rust-lang.github.io/rfcs/1574-more-api-documentation-conventions.html#appendix-a-full-conventions-text),
if relevant.
- [ ] Tests if relevant.
- [ ] All breaking changes documented.

Author: rklaehn

Cargo.toml

@@ -28,7 +28,6 @@ hex = "0.4.3"
 serde = "1.0.217"
 postcard = { version = "1.1.1", features = ["experimental-derive", "use-std"] }
 data-encoding = "2.8.0"
-chrono = "0.4.39"
 ref-cast = "1.0.24"
 arrayvec = "0.7.6"
 iroh = { version = "0.95", default-features = false }
@@ -43,6 +42,14 @@ reflink-copy = { version = "0.1.24", optional = true }
 n0-error = "0.1.2"
 nested_enum_utils = "0.2.3"
 
+# non-wasm-in-browser dependencies
+[target.'cfg(not(all(target_family = "wasm", target_os = "unknown")))'.dependencies]
+chrono = { version = "0.4.39" }
+
+# wasm-in-browser dependencies
+[target.'cfg(all(target_family = "wasm", target_os = "unknown"))'.dependencies]
+chrono = {version = "0.4.39", default-features = false, features = ["js-sys", "wasmbind", "std"] }
+
 [dev-dependencies]
 clap = { version = "4.5.31", features = ["derive"] }
 hex = "0.4.3"

src/get.rs

@@ -16,15 +16,12 @@
 //! or you can choose to finish early.
 //!
 //! [iroh]: https://docs.rs/iroh
-use std::{
-    fmt::{self, Debug},
-    time::Duration,
-};
+use std::fmt::{self, Debug};
 
 use bao_tree::{io::fsm::BaoContentItem, ChunkNum};
 use fsm::RequestCounters;
 use n0_error::Result;
-use n0_future::time::Instant;
+use n0_future::time::{Duration, Instant};
 use serde::{Deserialize, Serialize};
 use tracing::{debug, error};
 

src/provider.rs

@@ -3,13 +3,16 @@
 //! Note that while using this API directly is fine, the standard way
 //! to provide data is to just register a [`crate::BlobsProtocol`] protocol
 //! handler with an [`iroh::Endpoint`](iroh::protocol::Router).
-use std::{fmt::Debug, future::Future, io, time::Duration};
+use std::{fmt::Debug, future::Future, io};
 
 use bao_tree::ChunkRanges;
 use iroh::endpoint::{self, ConnectionError, VarInt};
 use iroh_io::{AsyncStreamReader, AsyncStreamWriter};
 use n0_error::{e, stack_error, Result};
-use n0_future::{time::Instant, StreamExt};
+use n0_future::{
+    time::{Duration, Instant},
+    StreamExt,
+};
 use serde::{Deserialize, Serialize};
 use tokio::select;
 use tracing::{debug, debug_span, Instrument};

src/store/fs/options.rs

@@ -1,8 +1,7 @@
 //! Options for configuring the file store.
-use std::{
-    path::{Path, PathBuf},
-    time::Duration,
-};
+use std::path::{Path, PathBuf};
+
+use n0_future::time::Duration;
 
 use super::{meta::raw_outboard_size, temp_name};
 use crate::{store::gc::GcConfig, Hash};

src/store/fs/util/entity_manager.rs

@@ -819,10 +819,10 @@ mod tests {
                 atomic::{AtomicUsize, Ordering},
                 Arc, Mutex,
             },
-            time::Instant,
         };
 
         use atomic_refcell::AtomicRefCell;
+        use n0_future::time::Instant;
 
         use super::*;
 
@@ -1070,10 +1070,10 @@ mod tests {
             collections::HashSet,
             path::{Path, PathBuf},
             sync::{Arc, Mutex},
-            time::Instant,
         };
 
         use atomic_refcell::AtomicRefCell;
+        use n0_future::time::Instant;
 
         use super::*;
 

src/store/gc.rs

@@ -2,7 +2,7 @@ use std::{collections::HashSet, pin::Pin, sync::Arc};
 
 use bao_tree::ChunkRanges;
 use genawaiter::sync::{Co, Gen};
-use n0_future::{Stream, StreamExt};
+use n0_future::{time::Duration, Stream, StreamExt};
 use tracing::{debug, error, info, warn};
 
 use crate::{api::Store, Hash, HashAndFormat};
@@ -134,7 +134,7 @@ fn gc_sweep<'a>(
 #[derive(derive_more::Debug, Clone)]
 pub struct GcConfig {
     /// Interval in which to run garbage collection.
-    pub interval: std::time::Duration,
+    pub interval: Duration,
     /// Optional callback to manually add protected blobs.
     ///
     /// The callback is called before each garbage collection run. It gets a `&mut HashSet<Hash>`

src/util/connection_pool.rs

@@ -16,7 +16,6 @@ use std::{
         atomic::{AtomicUsize, Ordering},
         Arc,
     },
-    time::Duration,
 };
 
 use iroh::{
@@ -26,6 +25,7 @@ use iroh::{
 use n0_error::{e, stack_error};
 use n0_future::{
     future::{self},
+    time::Duration,
     FuturesUnordered, MaybeFuture, Stream, StreamExt,
 };
 use tokio::sync::{