pip tweaks, add mypy to GHA (#220)

- pyproject.toml: move back `jinja2` to a base dependency.
- pyproject.toml: extend `dev` group with `jinja2`.
- GHA/checksrc: install packages via the `dev` group, drop `ci-tests`.
- pyproject.toml: drop just added `ci-tests` optional dependency in
  favor of `dev` group.
- GHA/checksrc: run `mypy`.
- re-add `py.typed`.
  (It doesn't seem to make a different in local tests.)

Follow-up to 09319b9 #219

Author: vszakats

.github/workflows/checksrc.yml

@@ -34,7 +34,7 @@ jobs:
       - name: 'install prereqs'
         run: |
           /home/linuxbrew/.linuxbrew/bin/brew install zizmor
-          pip --disable-pip-version-check --no-input --no-cache-dir install --progress-bar off --prefer-binary '.[ci-tests]'
+          pip --disable-pip-version-check --no-input --no-cache-dir install --progress-bar off --prefer-binary --group dev
 
       - name: 'zizmor GHA'
         env:
@@ -48,3 +48,9 @@ jobs:
           ruff --version
           # shellcheck disable=SC2046
           ruff check $(git ls-files '*.py')
+
+      - name: 'mypy'
+        run: |
+          mypy --version
+          # shellcheck disable=SC2046
+          mypy $(git ls-files src | grep -E '\.py$')

.github/workflows/pages-ci.yml

@@ -30,7 +30,7 @@ jobs:
 
       - name: Install dependencies
         run: |
-          pip --disable-pip-version-check --no-input --no-cache-dir install --progress-bar off --prefer-binary '.[page-gen,browser-tests]'
+          pip --disable-pip-version-check --no-input --no-cache-dir install --progress-bar off --prefer-binary '.[browser-tests]'
           python -m playwright install
 
       - name: Install Playwright system dependencies

.github/workflows/pages.yml

@@ -26,7 +26,7 @@ jobs:
           python-version: '3.12'
 
       - name: Install dependencies
-        run: pip --disable-pip-version-check --no-input --no-cache-dir install --progress-bar off --prefer-binary '.[page-gen]'
+        run: pip --disable-pip-version-check --no-input --no-cache-dir install --progress-bar off --prefer-binary .
 
       - name: Generate decoder HTML
         run: python -m curl_fuzzer_tools.generate_decoder_html

pyproject.toml

@@ -22,20 +22,15 @@ classifiers = [
     "Topic :: Software Development :: Testing",
     "Typing :: Typed",
 ]
-
-[project.optional-dependencies]
-ci-tests = [
-    "ruff==0.14.2",
-]
-page-gen = [
-    "scapy>=2.6.1,<3.0.0",
+dependencies = [
     "jinja2>=3.1.0,<4.0.0",
 ]
+
+[project.optional-dependencies]
 browser-tests = [
-    "jinja2>=3.1.0,<4.0.0",
-    "pytest>=8.3,<9",
     "playwright>=1.55,<1.56",
     "pytest_playwright>=0.7.1,<0.8",
+    "pytest>=8.3,<9",
 ]
 python-tests = [
     "pytest>=8.3,<9",
@@ -58,19 +53,11 @@ build-backend = "setuptools.build_meta"
 
 [dependency-groups]
 dev = [
+    "jinja2>=3.1.0,<4.0.0",
     "mypy==1.18.2",
     "ruff==0.14.2",
     "scapy>=2.6.1,<3.0.0",
 ]
-page-gen = [
-    "jinja2>=3.1.0,<4.0.0",
-]
-browser-tests = [
-    "jinja2>=3.1.0,<4.0.0",
-    "pytest>=8.3,<9",
-    "playwright>=1.55,<1.56",
-    "pytest_playwright>=0.7.1,<0.8",
-]
 
 [tool.mypy]
 warn_unused_configs = true