Add new CI Spellcheck job

.github/workflows/ci.yml

@@ -71,6 +71,7 @@ jobs:
       - check-external-types
       - check-fuzzing
       - check-unstable-mt-counters
+      - check-spelling
     steps:
       - run: exit 0
 
@@ -994,3 +995,21 @@ jobs:
       - name: Check /tokio-stream/
         run: cargo fuzz check --all-features
         working-directory: tokio-stream
+
+  check-spelling:
+    name: check-spelling
+    needs: basics
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Rust ${{ env.rust_stable }}
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: ${{ env.rust_stable }}
+      - name: Install cargo-spellcheck
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-spellcheck
+      - uses: actions/checkout@v4
+      - name: Run cargo-spellcheck
+        run: cargo spellcheck --code 1

CONTRIBUTING.md

@@ -194,6 +194,16 @@ MIRIFLAGS="-Zmiri-disable-isolation -Zmiri-tag-raw-pointers" \
     cargo +nightly miri test --features full --lib
 ```
 
+You can also perform spell-check on tokio codebase. For details of how to use the spellcheck tool, feel free to visit
+https://github.com/drahnr/cargo-spellcheck
+```
+# First install the spell-check plugin
+cargo install --locked cargo-spellcheck
+
+# Then run the cargo spell check command
+cargo spell check
+```
+
 ### Tests
 
 If the change being proposed alters code (as opposed to only documentation for

Cargo.toml

@@ -14,3 +14,6 @@ members = [
   "tests-build",
   "tests-integration",
 ]
+
+[workspace.metadata.spellcheck]
+config = "spellcheck.toml"