Add mypy, update pre-commit

.pre-commit-config.yaml

@@ -1,15 +1,31 @@
 repos:
 -   repo: https://github.com/PyCQA/flake8
-    rev: 3.9.1
+    rev: 6.1.0
     hooks:
     - id: flake8
 -   repo: https://github.com/timothycrosley/isort
-    rev: 5.11.5
+    rev: 5.12.0
     hooks:
     - id: isort
       args: ["--profile", "black"]
 -   repo: https://github.com/psf/black
-    rev: 22.3.0
+    rev: 23.11.0
     hooks:
     - id: black
-      language_version: python3.8
+      language_version: python3.8
+-   repo: https://github.com/pre-commit/mirrors-mypy
+    rev: v1.7.0
+    hooks:
+      - id: mypy
+        exclude: /tests/
+        # --strict
+        args: [
+          --no-strict-optional,
+          --ignore-missing-imports,
+          --implicit-reexport,
+          --explicit-package-bases,
+        ]
+        additional_dependencies: [
+          "types-attrs",
+          "types-requests"
+        ]

CHANGELOG.md

@@ -6,6 +6,10 @@ The format is (loosely) based on [Keep a Changelog](http://keepachangelog.com/)
 
 ## [Unreleased]
 
+### Added
+
+- Added mypy to pre-commit config ([#229](https://github.com/stac-utils/stac-validator/pull/224))
+
 ## [v3.3.2] - 2023-11-17
 
 ### Added

docs/conf.py

@@ -4,6 +4,8 @@
 # list see the documentation:
 # https://www.sphinx-doc.org/en/master/usage/configuration.html
 
+from typing import List
+
 # -- Path setup --------------------------------------------------------------
 
 # If extensions (or modules to document with autodoc) are in another directory,
@@ -30,7 +32,7 @@
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
-extensions = []
+extensions: List[str] = []
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ["_templates"]

setup.py

@@ -18,7 +18,7 @@
         "Intended Audience :: Information Technology",
         "Intended Audience :: Science/Research",
         "License :: OSI Approved :: Apache Software License",
-        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
         "Topic :: Scientific/Engineering :: GIS",
     ],
     keywords="STAC validation raster",

stac_validator/utilities.py

@@ -1,6 +1,7 @@
 import functools
 import json
 import ssl
+from typing import Dict
 from urllib.parse import urlparse
 from urllib.request import urlopen
 
@@ -44,7 +45,7 @@ def is_valid_url(url: str) -> bool:
     return urlparse(url).scheme in ["http", "https"]
 
 
-def get_stac_type(stac_content: dict) -> str:
+def get_stac_type(stac_content: Dict) -> str:
     """Determine the type of a STAC resource.
 
     Given a dictionary representing a STAC resource, this function determines the
@@ -74,7 +75,7 @@ def get_stac_type(stac_content: dict) -> str:
         return str(e)
 
 
-def fetch_and_parse_file(input_path: str) -> dict:
+def fetch_and_parse_file(input_path: str) -> Dict:
     """Fetches and parses a JSON file from a URL or local file.
 
     Given a URL or local file path to a JSON file, this function fetches the file,
@@ -107,7 +108,7 @@ def fetch_and_parse_file(input_path: str) -> dict:
 
 
 @functools.lru_cache(maxsize=48)
-def fetch_and_parse_schema(input_path: str) -> dict:
+def fetch_and_parse_schema(input_path: str) -> Dict:
     """Fetches and parses a JSON schema file from a URL or local file using a cache.
 
     Given a URL or local file path to a JSON schema file, this function fetches the file
@@ -147,8 +148,8 @@ def set_schema_addr(version: str, stac_type: str) -> str:
 
 
 def link_request(
-    link: dict,
-    initial_message: dict,
+    link: Dict,
+    initial_message: Dict,
 ) -> None:
     """Makes a request to a URL and appends it to the relevant field of the initial message.
 

stac_validator/validate.py

@@ -1,7 +1,7 @@
 import json
 import os
 from json.decoder import JSONDecodeError
-from typing import Optional
+from typing import Dict, List, Optional
 from urllib.error import HTTPError, URLError
 
 import click  # type: ignore
@@ -60,23 +60,23 @@ def __init__(
         self.stac_file = stac_file
         self.item_collection = item_collection
         self.pages = pages
-        self.message: list = []
+        self.message: List = []
         self.schema = custom
         self.links = links
         self.assets = assets
         self.recursive = recursive
         self.max_depth = max_depth
         self.extensions = extensions
         self.core = core
-        self.stac_content: dict = {}
+        self.stac_content: Dict = {}
         self.version = ""
         self.depth: int = 0
         self.skip_val = False
         self.verbose = verbose
         self.valid = False
         self.log = log
 
-    def create_err_msg(self, err_type: str, err_msg: str) -> dict:
+    def create_err_msg(self, err_type: str, err_msg: str) -> Dict:
         self.valid = False
         return {
             "version": self.version,
@@ -99,7 +99,7 @@ def create_links_message(self):
             "request_invalid": request_invalid,
         }
 
-    def create_message(self, stac_type: str, val_type: str) -> dict:
+    def create_message(self, stac_type: str, val_type: str) -> Dict:
         return {
             "version": self.version,
             "path": self.stac_file,
@@ -109,7 +109,7 @@ def create_message(self, stac_type: str, val_type: str) -> dict:
             "validation_method": val_type,
         }
 
-    def assets_validator(self) -> dict:
+    def assets_validator(self) -> Dict:
         """Validate assets.
 
         Returns:
@@ -122,7 +122,7 @@ def assets_validator(self) -> dict:
                 link_request(asset, initial_message)
         return initial_message
 
-    def links_validator(self) -> dict:
+    def links_validator(self) -> Dict:
         """Validate links.
 
         Returns:
@@ -143,7 +143,7 @@ def links_validator(self) -> dict:
 
         return initial_message
 
-    def extensions_validator(self, stac_type: str) -> dict:
+    def extensions_validator(self, stac_type: str) -> Dict:
         """Validate the STAC extensions according to their corresponding JSON schemas.
 
         Args:
@@ -253,7 +253,7 @@ def core_validator(self, stac_type: str) -> None:
         self.schema = set_schema_addr(self.version, stac_type)
         self.custom_validator()
 
-    def default_validator(self, stac_type: str) -> dict:
+    def default_validator(self, stac_type: str) -> Dict:
         """Validate the STAC catalog or item against the core schema and its extensions.
 
         Args:
@@ -379,7 +379,7 @@ def validate_dict(self, stac_content) -> bool:
         self.stac_content = stac_content
         return self.run()
 
-    def validate_item_collection_dict(self, item_collection: dict) -> None:
+    def validate_item_collection_dict(self, item_collection: Dict) -> None:
         """Validate the contents of an item collection.
 
         Args:

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py37,py38,py39
+envlist = py38,py39,py310,py311
 
 [testenv]
 deps = pytest