Add GitHub Action to run codespell and ruff

.github/workflows/lint.yml

@@ -0,0 +1,12 @@
+name: lint
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: codespell-project/actions-codespell@v2
+    - uses: astral-sh/ruff-action@v3

pyproject.toml

@@ -48,3 +48,19 @@ Downloads = "https://github.com/python-cffi/cffi/releases"
 Contact = "https://groups.google.com/forum/#!forum/python-cffi"
 "Source Code" = "https://github.com/python-cffi/cffi"
 "Issue Tracker" = "https://github.com/python-cffi/cffi/issues"
+
+[tool.codespell]
+ignore-words-list = "alltime,blong,ccompiler,fo,hel"
+skip = "*.bak"
+
+[tool.ruff.lint]
+select = [
+  "E9",
+  "F63",
+  "F7",
+  "F82",
+]
+[tool.ruff.lint.per-file-ignores]
+"src/cffi/verifier.py" = ["F821"]
+"testing/*" = ["F821"]
+

testing/cffi1/test_re_python.py

@@ -299,7 +299,7 @@ def test_rec_structs_1():
     #
     from _rec_structs_1 import ffi
     # the following line used to raise TypeError
-    # unless preceeded by 'ffi.sizeof("struct C")'.
+    # unless preceded by 'ffi.sizeof("struct C")'.
     sz = ffi.sizeof("struct B")
     assert sz == ffi.sizeof("int *")