feat: support disable hybrid feature to memory cache only

.github/workflows/ci.yml

@@ -89,6 +89,28 @@ jobs:
           toolchain: stable
       - name: Run cargo machete
         uses: bnjbvr/cargo-machete@main
+  rust-cargo-tree:
+    name: show rust dependencies
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest, ubuntu-24.04-arm]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+      - name: Install rust toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: stable
+      - name: Print in-memory only foyer dependencies
+        run: |
+          cargo tree -p foyer --no-default-features -e normal 
+      - name: Print hybrid foyer dependencies
+        run: |
+          cargo tree -p foyer -e normal
+
   rust-udeps:
     name: rust udeps test
     strategy:
@@ -205,6 +227,7 @@ jobs:
       - name: Run rust clippy check (stable)
         if: matrix.rust_toolchain == 'stable'
         run: |
+          cargo clippy -p foyer --no-default-features
           cargo clippy --all-targets ${{ matrix.serde }} --features tokio-console -- -D warnings
           cargo clippy --all-targets ${{ matrix.serde }} --features deadlock -- -D warnings
           cargo clippy --all-targets ${{ matrix.serde }} --features tracing -- -D warnings

Cargo.toml

@@ -16,7 +16,7 @@ edition = "2021"
 rust-version = "1.81.0"
 repository = "https://github.com/foyer-rs/foyer"
 homepage = "https://foyer.rs"
-keywords = ["cache", "hybrid"]
+keywords = ["cache", "hybrid", "tiered"]
 authors = ["MrCroxx <mrcroxx@outlook.com>"]
 license = "Apache-2.0"
 readme = "README.md"

Makefile

@@ -19,6 +19,7 @@ check-all:
 	cargo sort -w
 	taplo fmt
 	cargo fmt --all
+	cargo clippy -p foyer --no-default-features
 	cargo clippy --all-targets --features deadlock
 	cargo clippy --all-targets --features tokio-console
 	cargo clippy --all-targets --features tracing

foyer-memory/src/raw.rs

@@ -344,9 +344,7 @@ where
                 let (tx, rx) = oneshot::channel();
                 o.get_mut().push(tx);
                 self.metrics.memory_queue.increase(1);
-                RawShardFetch::Wait(rx.in_span(Span::enter_with_local_parent(
-                    "foyer::memory::raw::fetch_with_runtime::wait",
-                )))
+                RawShardFetch::Wait(rx.in_span(Span::enter_with_local_parent("foyer::memory::raw::fetch_queue::wait")))
             }
             HashMapEntry::Vacant(v) => {
                 v.insert(vec![]);

foyer/Cargo.toml

@@ -22,7 +22,7 @@ equivalent = { workspace = true }
 fastrace = { workspace = true }
 foyer-common = { workspace = true }
 foyer-memory = { workspace = true }
-foyer-storage = { workspace = true }
+foyer-storage = { workspace = true, optional = true }
 mixtrics = { workspace = true }
 pin-project = { workspace = true }
 serde = { workspace = true }
@@ -56,7 +56,8 @@ tokio = { package = "tokio", version = "1", features = [
 ] }
 
 [features]
-default = []
+default = ["hybrid"]
+hybrid = ["dep:foyer-storage"]
 serde = ["foyer-common/serde", "foyer-storage/serde"]
 tracing = [
   "fastrace/enable",

foyer/src/lib.rs

@@ -28,8 +28,10 @@
 
 use foyer_common as common;
 use foyer_memory as memory;
+#[cfg(feature = "hybrid")]
 use foyer_storage as storage;
 
+#[cfg(feature = "hybrid")]
 mod hybrid;
 
 mod prelude;

foyer/src/prelude.rs

@@ -21,15 +21,18 @@ pub use crate::{
         range::RangeBoundsExt,
         tracing::TracingOptions,
     },
+    memory::{
+        Cache, CacheBuilder, CacheEntry, CacheHint, EvictionConfig, FetchState, FifoConfig, LfuConfig, LruConfig,
+        S3FifoConfig, Weighter,
+    },
+};
+#[cfg(feature = "hybrid")]
+pub use crate::{
     hybrid::{
         builder::{HybridCacheBuilder, HybridCacheBuilderPhaseMemory, HybridCacheBuilderPhaseStorage},
         cache::{HybridCache, HybridCacheEntry, HybridCachePolicy, HybridFetch},
         writer::{HybridCacheStorageWriter, HybridCacheWriter},
     },
-    memory::{
-        Cache, CacheBuilder, CacheEntry, CacheHint, EvictionConfig, FetchState, FifoConfig, LfuConfig, LruConfig,
-        S3FifoConfig, Weighter,
-    },
     storage::{
         AdmissionPicker, AdmitAllPicker, ChainedAdmissionPicker, ChainedAdmissionPickerBuilder, Compression, Dev,
         DevConfig, DevExt, DirectFileDevice, DirectFileDeviceOptions, DirectFsDevice, DirectFsDeviceOptions, Engine,