ci: check minimum requirements

Use a script to ensure the minimum requirements file is in-sync with the package.

.github/workflows/continuous-integration.yml

@@ -68,6 +68,8 @@ jobs:
         run: pip install -r requirements-min.txt
       - name: Install the package
         run: pip install .
+      - name: Check minimum requirements
+        run: scripts/check_minimum_requirements
       - name: Install development dependencies
         run: pip install -r requirements-dev.txt
       - name: Test

requirements-dev.txt

@@ -1,10 +1,12 @@
 codespell
 flake8
+importlib-metadata
 ipython
 jupyter
 lxml-stubs
 mypy
 nbsphinx
+packaging
 pylint
 pytest
 pytest-cov

scripts/check_minimum_requirements

@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+# type: ignore
+
+import os.path
+import sys
+from importlib_metadata import requires
+from packaging.requirements import Requirement
+
+package_requirements = [
+    Requirement(requirement) for requirement in requires("stactools")
+]
+requirements_min = os.path.join(os.path.dirname(os.path.dirname(__file__)),
+                                "requirements-min.txt")
+with open(requirements_min) as file:
+    min_requirements = [Requirement(line) for line in file]
+min_requirements = dict(
+    (requirement.name, requirement) for requirement in min_requirements)
+
+incorrect_requirements = list()
+for package_requirement in package_requirements:
+    if package_requirement.marker is not None:
+        continue
+    min_requirement = min_requirements[package_requirement.name]
+    for (package_specifier,
+         min_specifier) in zip(package_requirement.specifier,
+                               min_requirement.specifier):
+        if package_specifier.operator == ">=" and package_specifier.version != min_specifier.version:
+            incorrect_requirements.append(
+                (package_requirement, min_requirement))
+
+if incorrect_requirements:
+    print("ERROR: Incorrect min-requirements.txt!")
+    for package_requirement, min_requirement in incorrect_requirements:
+        print(f"- package: {package_requirement}, min: {min_requirement}")
+    sys.exit(1)
+else:
+    print("OK")
+    sys.exit(0)