Expose rkyv features as features for chrono users.

.github/workflows/codecov.yml

@@ -1,4 +1,9 @@
 name: codecov
+
+env:
+  # It's really `--all-features`, but not adding the mutually exclusive features from rkyv
+  ALL_NON_EXCLUSIVE_FEATURES: --features "default unstable-locales rkyv-64 rkyv-validation rustc-serialize serde arbitrary"
+
 on:
   push:
     branches: [main, 0.4.x]
@@ -18,7 +23,7 @@ jobs:
       - name: Install cargo-llvm-cov
         uses: taiki-e/install-action@cargo-llvm-cov
       - name: Generate code coverage
-        run: cargo +nightly llvm-cov --all-features --workspace --lcov --doctests --output-path lcov.info
+        run: cargo +nightly llvm-cov ${{ env.ALL_NON_EXCLUSIVE_FEATURES }} --workspace --lcov --doctests --output-path lcov.info
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3
         env:

.github/workflows/lint.yml

@@ -1,5 +1,9 @@
 name: lint
 
+env:
+  # It's really `--all-features`, but not adding the mutually exclusive features from rkyv
+  ALL_NON_EXCLUSIVE_FEATURES: --features "default unstable-locales rkyv-64 rkyv-validation rustc-serialize serde arbitrary"
+
 on:
   push:
     branches: [main, 0.4.x]
@@ -19,7 +23,7 @@ jobs:
       - run: cargo fmt --check --manifest-path fuzz/Cargo.toml
       - run: cargo fmt --check --manifest-path bench/Cargo.toml
       - run: |
-          cargo clippy --all-features --all-targets --color=always \
+          cargo clippy ${{ env.ALL_NON_EXCLUSIVE_FEATURES }} --all-targets --color=always \
             -- -D warnings
       - run: |
           cargo clippy --manifest-path fuzz/Cargo.toml --color=always \
@@ -50,8 +54,8 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
       - run: cargo install cargo-deadlinks
-      - run: cargo deadlinks -- --all-features
-      - run: cargo doc --all-features --no-deps
+      - run: cargo deadlinks -- ${{ env.ALL_NON_EXCLUSIVE_FEATURES }}
+      - run: cargo doc ${{ env.ALL_NON_EXCLUSIVE_FEATURES }} --no-deps
         env:
           RUSTDOCFLAGS: -Dwarnings
 

.github/workflows/test.yml

@@ -1,5 +1,9 @@
 name: All Tests and Builds
 
+env:
+  # It's really `--all-features`, but not adding the mutually exclusive features from rkyv
+  ALL_NON_EXCLUSIVE_FEATURES: --features "default unstable-locales rkyv-32 rkyv-validation rustc-serialize serde arbitrary"
+
 on:
   push:
     branches: [main, 0.4.x]
@@ -16,7 +20,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
       - uses: Swatinem/rust-cache@v2
-      - run: cargo test --all-features --color=always -- --color=always
+      - run: cargo test ${{ env.ALL_NON_EXCLUSIVE_FEATURES }} --color=always -- --color=always
 
   # later this may be able to be included with the below
   # kept separate for now as the following don't compile on 1.60
@@ -61,8 +65,8 @@ jobs:
       - run: cargo check --manifest-path fuzz/Cargo.toml --all-targets
       # run --lib and --doc to avoid the long running integration tests
       # which are run elsewhere
-      - run: cargo test --lib --all-features --color=always -- --color=always
-      - run: cargo test --doc --all-features --color=always -- --color=always
+      - run: cargo test --lib ${{ env.ALL_NON_EXCLUSIVE_FEATURES }} --color=always -- --color=always
+      - run: cargo test --doc ${{ env.ALL_NON_EXCLUSIVE_FEATURES }} --color=always -- --color=always
 
   features_check:
     strategy:
@@ -76,7 +80,7 @@ jobs:
       - uses: Swatinem/rust-cache@v2
       - run: |
           cargo hack check --feature-powerset --optional-deps serde \
-            --skip __internal_bench,iana-time-zone,pure-rust-locales,libc,winapi \
+            --skip __internal_bench,iana-time-zone,pure-rust-locales,libc,winapi,rkyv-16,rkyv-64,rkyv-validation \
             --all-targets
         # run using `bash` on all platforms for consistent
         # line-continuation marks
@@ -182,16 +186,16 @@ jobs:
       - uses: actions/checkout@v4
       - run: cargo install cross
       - uses: Swatinem/rust-cache@v2
-      - run: cross test --lib --all-features --target i686-unknown-linux-gnu --color=always
-      - run: cross test --doc --all-features --target i686-unknown-linux-gnu --color=always
-      - run: cross test --lib --all-features --target i686-unknown-linux-musl --color=always
-      - run: cross test --doc --all-features --target i686-unknown-linux-musl --color=always
+      - run: cross test --lib ${{ env.ALL_NON_EXCLUSIVE_FEATURES }} --target i686-unknown-linux-gnu --color=always
+      - run: cross test --doc ${{ env.ALL_NON_EXCLUSIVE_FEATURES }} --target i686-unknown-linux-gnu --color=always
+      - run: cross test --lib ${{ env.ALL_NON_EXCLUSIVE_FEATURES }} --target i686-unknown-linux-musl --color=always
+      - run: cross test --doc ${{ env.ALL_NON_EXCLUSIVE_FEATURES }} --target i686-unknown-linux-musl --color=always
 
   check-docs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@nightly
-      - run: cargo +nightly doc --all-features --no-deps
+      - run: cargo +nightly doc ${{ env.ALL_NON_EXCLUSIVE_FEATURES }} --no-deps
         env:
           RUSTDOCFLAGS: "-D warnings --cfg docsrs"

Cargo.toml

@@ -17,6 +17,7 @@ rust-version = "1.61.0"
 name = "chrono"
 
 [features]
+# Don't forget to adjust `ALL_NON_EXCLUSIVE_FEATURES` in CI scripts when adding a feature or an optional dependency.
 default = ["clock", "std", "oldtime", "wasmbind"]
 alloc = []
 libc = []
@@ -27,15 +28,20 @@ now = ["std"]
 oldtime = []
 wasmbind = ["wasm-bindgen", "js-sys"]
 unstable-locales = ["pure-rust-locales"]
-rkyv-validation = ["rkyv/validation"]
+# Note that rkyv-16, rkyv-32, and rkyv-64 are mutually exclusive.
+rkyv-16 = ["rkyv", "rkyv?/size_16"]
+rkyv-32 = ["rkyv", "rkyv?/size_32"]
+rkyv-64 = ["rkyv", "rkyv?/size_64"]
+rkyv-validation = ["rkyv", "rkyv?/validation"]
+# Features for internal use only:
 __internal_bench = []
 
 [dependencies]
 num-traits = { version = "0.2", default-features = false }
 rustc-serialize = { version = "0.3.20", optional = true }
 serde = { version = "1.0.99", default-features = false, optional = true }
 pure-rust-locales = { version = "0.7", optional = true }
-rkyv = { version = "0.7.41", optional = true }
+rkyv = { version = "0.7.43", optional = true, default-features = false }
 arbitrary = { version = "1.0.0", features = ["derive"], optional = true }
 
 [target.'cfg(all(target_arch = "wasm32", not(any(target_os = "emscripten", target_os = "wasi"))))'.dependencies]

src/month.rs

@@ -33,7 +33,7 @@ use crate::OutOfRange;
 #[cfg_attr(feature = "rkyv", derive(Archive, Deserialize, Serialize))]
 #[cfg_attr(
     feature = "rkyv",
-    archive(compare(PartialEq)),
+    archive(compare(PartialEq, PartialOrd)),
     archive_attr(derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Debug, Hash))
 )]
 #[cfg_attr(feature = "rkyv-validation", archive(check_bytes))]

src/naive/isoweek.rs

@@ -20,7 +20,7 @@ use rkyv::{Archive, Deserialize, Serialize};
 #[cfg_attr(feature = "rkyv", derive(Archive, Deserialize, Serialize))]
 #[cfg_attr(
     feature = "rkyv",
-    archive(compare(PartialEq)),
+    archive(compare(PartialEq, PartialOrd)),
     archive_attr(derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Debug, Hash))
 )]
 #[cfg_attr(feature = "rkyv-validation", archive(check_bytes))]