Use commit hashes in pre-commit config and actions

.github/workflows/codeql.yaml

@@ -22,16 +22,16 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v4
+        uses: github/codeql-action/init@9e0d7b8d25671d64c341c19c0152d693099fb5ba  # v4.35.5
         with:
           languages: python
           queries: +security-and-quality
           config-file: ./.github/codeql-config.yaml
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v4
+        uses: github/codeql-action/analyze@9e0d7b8d25671d64c341c19c0152d693099fb5ba  # v4.35.5
         with:
           category: "/language:python"

.github/workflows/manual.yaml

@@ -16,8 +16,8 @@ jobs:
   tox-coverage:
     runs-on: ${{ inputs.OS }}
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: |
             3.9
@@ -26,7 +26,7 @@ jobs:
             3.12
       - run: pip install -e ".[dev]"
       - run: tox -- --cov=../jsonargparse --cov-append
-      - uses: actions/upload-artifact@v7
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
         with:
           name: coverage
           path: jsonargparse_tests/.coverage

.github/workflows/tests.yaml

@@ -21,8 +21,8 @@ jobs:
       matrix:
         python: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: ${{ matrix.python }}
           cache: pip
@@ -45,11 +45,11 @@ jobs:
           pytest --cov --cov-report=term --cov-report=xml --junit-xml=junit.xml
           mv coverage.xml coverage_py${{ matrix.python }}_types.xml
           mv junit.xml junit_py${{ matrix.python }}_types.xml
-      - uses: actions/upload-artifact@v7
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
         with:
           name: coverage_py${{ matrix.python }}
           path: ./coverage_py*
-      - uses: actions/upload-artifact@v7
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
         with:
           name: junit_py${{ matrix.python }}
           path: ./junit_py*
@@ -60,8 +60,8 @@ jobs:
       matrix:
         python: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: ${{ matrix.python }}
           cache: pip
@@ -75,8 +75,8 @@ jobs:
       matrix:
         python: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: ${{ matrix.python }}
           cache: pip
@@ -90,8 +90,8 @@ jobs:
       matrix:
         python: ["3.12", "3.14"]
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: ${{ matrix.python }}
           cache: pip
@@ -101,8 +101,8 @@ jobs:
   omegaconf:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: "3.12"
           cache: pip
@@ -112,8 +112,8 @@ jobs:
   pydantic-v1:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: "3.12"
           cache: pip
@@ -132,20 +132,20 @@ jobs:
           pytest --cov --cov-report=term --cov-report=xml --junit-xml=junit.xml jsonargparse_tests/test_pydantic.py
           mv coverage.xml coverage_pydantic2.xml
           mv junit.xml junit_pydantic2.xml
-      - uses: actions/upload-artifact@v7
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
         with:
           name: coverage_pydantic
           path: ./coverage_py*
-      - uses: actions/upload-artifact@v7
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
         with:
           name: junit_pydantic
           path: ./junit_py*
 
   build-package:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: "3.12"
       - name: Build package
@@ -155,7 +155,7 @@ jobs:
           cd jsonargparse_tests
           python -m build --wheel
           mv dist/*.whl ../dist/
-      - uses: actions/upload-artifact@v7
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # v7.0.1
         with:
           name: package
           path: ./dist/*
@@ -164,12 +164,12 @@ jobs:
     runs-on: ubuntu-latest
     needs: [build-package]
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: "3.12"
           cache: pip
-      - uses: actions/download-artifact@v8
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8.0.1
         with:
           name: package
           path: dist
@@ -188,8 +188,8 @@ jobs:
   doctest:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: "3.12"
           cache: pip
@@ -200,14 +200,14 @@ jobs:
   mypy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: "3.12"
           cache: pip
-      - uses: actions/cache@v5
+      - uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5.0.5
         with:
-          key: pre-commit-cache
+          key: pre-commit-cache-${{ hashFiles('.pre-commit-config.yaml') }}
           path: ~/.cache/pre-commit
       - run: pip install pre-commit
       - run: pre-commit run -a --hook-stage pre-push mypy
@@ -218,16 +218,16 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/download-artifact@v8
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8.0.1
         with:
           merge-multiple: true
-      - uses: codecov/codecov-action@v6
+      - uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2  # v6.0.0
         with:
           fail_ci_if_error: true
           files: ./coverage_*.xml
           use_oidc: true
-      - uses: codecov/codecov-action@v6
+      - uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2  # v6.0.0
         with:
           fail_ci_if_error: true
           report_type: test_results
@@ -242,10 +242,10 @@ jobs:
       (github.event_name == 'pull_request' && !github.event.pull_request.head.repo.fork)
     needs: [linux, pydantic-v1]
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
         with:
           fetch-depth: 0  # Shallow clone disabled for a better relevancy of analysis
-      - uses: actions/download-artifact@v8
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8.0.1
         with:
           merge-multiple: true
       - name: Get version
@@ -257,7 +257,7 @@ jobs:
             VERSION="$(git describe --tags --abbrev=0 | sed 's/^v//')+$(git rev-parse --short HEAD)"
           fi
           echo "VERSION=$VERSION" >> $GITHUB_ENV
-      - uses: SonarSource/sonarqube-scan-action@v8
+      - uses: SonarSource/sonarqube-scan-action@59db25f34e16620e48ab4bb9e4a5dce155cb5432  # v8.0.0
         with:
           args: >
             -Dsonar.organization=omni-us
@@ -282,9 +282,9 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - uses: actions/download-artifact@v8
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # v8.0.1
         with:
           name: package
           path: dist
       - name: Publish to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
+        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b  # v1.14.0

.pre-commit-config.yaml

@@ -13,7 +13,7 @@ ci:
 repos:
 
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v6.0.0
+  rev: 3e8a8703264a2f4a69428a0aa4dcb512790b2c8c  # v6.0.0
   hooks:
   - id: check-added-large-files
   - id: check-ast
@@ -25,20 +25,20 @@ repos:
     exclude: .bumpversion.cfg
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: v0.15.12
+  rev: 5e2fb545eba1ea9dc051f6f962d52fe8f76a9794  # v0.15.13
   hooks:
   - id: ruff-check
   - id: ruff-format
 
 - repo: https://github.com/crate-ci/typos
-  rev: v1.46.0
+  rev: aca895bf05aec0cb7dffa6f94495e923224d9f17  # v1.46.2
   hooks:
   - id: typos
     args: []
     verbose: true
 
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: v1.20.2
+  rev: d2823d321df3af8f878f7ee3414dc94d037145b9  # v2.1.0
   hooks:
   - id: mypy
     files: jsonargparse.*/.*.py

jsonargparse/_common.py

@@ -230,7 +230,7 @@ def validate_default(container: ActionsContainer, action: argparse.Action):
         from ._core import ArgumentGroup
 
         if isinstance(container, ArgumentGroup):
-            container = container.parser  # type: ignore[assignment]
+            container = container.parser
         with parser_context(parent_parser=container, validating_defaults=True):
             default = action.default
             action.default = None

jsonargparse/_formatters.py

@@ -59,28 +59,31 @@ def __init__(self, help_formatter: HelpFormatter):
 
     def add_yaml_comments(self, cfg: str) -> str:
         """Adds help text as yaml comments."""
+        from ._core import ArgumentParser
+
         ruyaml = import_ruamel("add_yaml_comments")
         yaml = ruyaml.YAML()
         cfg = yaml.load(cfg)
 
-        def get_subparsers(parser, prefix=""):
-            subparsers = {}
+        def get_parsers(parser: ArgumentParser, prefix="") -> dict[Optional[str], ArgumentParser]:
+            parsers = {}
             if parser._subparsers is not None:
-                for key, subparser in parser._subparsers._group_actions[0].choices.items():
+                for key, subparser in parser._subparsers._group_actions[0].choices.items():  # type: ignore[union-attr]
                     full_key = (prefix + "." if prefix else "") + key
-                    subparsers[full_key] = subparser
-                    subparsers.update(get_subparsers(subparser, prefix=full_key))
-            return subparsers
+                    parsers[full_key] = subparser
+                    parsers.update(get_parsers(subparser, prefix=full_key))
+            parsers[None] = parser
+            return parsers
 
         parser = parent_parser.get()
-        parsers = get_subparsers(parser)
-        parsers[None] = parser
+        assert isinstance(parser, ArgumentParser)
+        parsers = get_parsers(parser)
 
         group_titles = {}
-        for parser_key, parser in parsers.items():
-            group_titles[parser_key] = parser.description
-            prefix = "" if parser_key is None else parser_key + "."
-            for group in parser._action_groups:
+        for parser_n_key, parser_n in parsers.items():
+            group_titles[parser_n_key] = parser_n.description
+            prefix = "" if parser_n_key is None else parser_n_key + "."
+            for group in parser_n._action_groups:
                 actions = filter_non_parsing_actions(group._group_actions)
                 actions = [
                     a for a in actions if not isinstance(a, (_ActionConfigLoad, ActionConfigFile, ActionSubCommands))

jsonargparse/_instantiation.py

@@ -101,7 +101,7 @@ def instantiate(
                             applied_instantiation_links=cfg.get("__applied_instantiation_links__"),
                         ):
                             parent[key] = component.instantiate_classes(value)
-            else:
+            elif hasattr(component, "instantiate_class"):
                 with parser_context(
                     load_value_mode=self.parser_mode,  # type: ignore[attr-defined]
                     class_instantiators=get_class_instantiators(self),

jsonargparse/_parameter_resolvers.py

@@ -488,7 +488,7 @@ def get_component_and_parent(
         function_or_class = function_or_class.wrapped_function  # type: ignore[union-attr]
         if isinstance(function_or_class, MethodType):
             method_or_property = function_or_class.__name__
-            function_or_class = function_or_class.__self__  # type: ignore[assignment]
+            function_or_class = function_or_class.__self__
         else:
             method_or_property = None
     elif inspect.isclass(get_generic_origin(function_or_class)) and method_or_property is None:
@@ -1052,7 +1052,7 @@ def get_parameters_from_stubs(
         return None
     except Exception:
         pass  # only from stubs if getting signature fails
-    params = None
+    params: Optional[ParamList] = None
     resolver = get_stubs_resolver()
     stub_import = resolver.get_component_imported_info(component, parent)
     if stub_import:

jsonargparse/_postponed_annotations.py

@@ -324,7 +324,7 @@ def get_types(obj: Any, logger: Optional[logging.Logger] = None) -> dict:
     try:
         types = get_type_hints(obj, global_vars)
     except Exception as ex1:
-        types = ex1  # type: ignore[assignment]
+        types = ex1
     if isinstance(types, dict) and all(not type_requires_eval(t) for t in types.values()):
         return types
 

jsonargparse/_signatures.py

@@ -124,7 +124,7 @@ def add_class_arguments(
                 if skip_not_added:
                     skip.update(skip_not_added)  # skip init=False
             if defaults:
-                defaults = {prefix + k: v for k, v in defaults.items() if k not in skip}
+                defaults = {prefix + k: v for k, v in defaults.items() if k not in skip}  # type: ignore[union-attr]
                 self.set_defaults(**defaults)  # type: ignore[attr-defined]
 
         return added_args
@@ -483,7 +483,7 @@ def add_subclass_arguments(
             ValueError: When given an invalid base class.
         """
         if type(baseclass) is not tuple:
-            baseclass = (baseclass,)  # type: ignore[assignment]
+            baseclass = (baseclass,)
         assert isinstance(baseclass, tuple)
         if not baseclass or not all(ActionTypeHint.is_subclass_typehint(c, also_lists=True) for c in baseclass):
             raise ValueError(f"Expected 'baseclass' to be a subclass type or a tuple of subclass types: {baseclass}")