ci: use makefile for fmt

.github/workflows/ci.yml

@@ -15,16 +15,16 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
-      - run: pip install black==20.8b1
+      - run: pip install black==21.12b0
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
           profile: minimal
           components: rustfmt
       - name: Check python formatting (black)
-        run: black --check .
+        run: make fmt_py
       - name: Check rust formatting (rustfmt)
-        run: cargo fmt --all -- --check
+        run: make fmt_rust
 
   clippy:
     runs-on: ubuntu-latest

Makefile

@@ -1,4 +1,4 @@
-.PHONY: test test_py publish clippy lint fmt
+.PHONY: test test_py publish clippy lint fmt fmt_py fmt_rust
 
 ALL_ADDITIVE_FEATURES = macros multiple-pymethods num-bigint num-complex hashbrown serde indexmap eyre anyhow
 
@@ -14,10 +14,15 @@ test: lint test_py
 test_py:
 	for example in examples/*/; do TOX_TESTENV_PASSENV=RUSTUP_HOME tox -e py -c $$example || exit 1; done
 
-fmt:
-	cargo fmt --all -- --check
+fmt_py:
 	black . --check
 
+fmt_rust:
+	cargo fmt --all -- --check
+
+fmt: fmt_rust fmt_py
+	@true
+
 clippy:
 	cargo clippy --features="$(ALL_ADDITIVE_FEATURES)" --all-targets --workspace -- -Dwarnings
 	cargo clippy --features="abi3 $(ALL_ADDITIVE_FEATURES)" --all-targets --workspace -- -Dwarnings