From bf2297a4358ae9dd3821eae9d09decc611c98189 Mon Sep 17 00:00:00 2001
From: pjhartzell <preston.hartzell@gmail.com>
Date: Sun, 6 Aug 2023 19:09:33 -0400
Subject: [PATCH] add CI min-dependencies job

---
 .github/workflows/ci.yaml        | 20 +++++++++++++++++
 pyproject.toml                   |  3 ++-
 scripts/install-min-dependencies | 38 ++++++++++++++++++++++++++++++++
 3 files changed, 60 insertions(+), 1 deletion(-)
 create mode 100644 scripts/install-min-dependencies

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 64fd136..f13d21c 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -30,6 +30,26 @@ jobs:
         run: pre-commit run --all-files
       - name: Run tests
         run: pytest
+  min-dependencies:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Chekcout
+        uses: actions/checkout@v3
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.8"
+          cache: "pip"
+      - name: Install geos
+        run: sudo apt-get install libgeos-dev
+      - name: Install with dev dependencies
+        run: pip install .[dev]
+      - name: Install minimum versions of dependencies
+        run: scripts/install_min_dependencies
+      - name: Check with pre-commit
+        run: pre-commit run --all-files
+      - name: Run tests
+        run: pytest
   docs:
     runs-on: ubuntu-latest
     defaults:
diff --git a/pyproject.toml b/pyproject.toml
index 41cabf7..cc56e63 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ classifiers = [
     "Programming Language :: Python :: 3",
     "Development Status :: 2 - Pre-Alpha",
 ]
-dependencies = ["rasterio", "shapely"]
+dependencies = ["rasterio>=1.3", "shapely>=2.0"]
 
 [project.optional-dependencies]
 dev = [
@@ -21,6 +21,7 @@ dev = [
     "pre-commit~=3.3",
     "pytest~=7.4",
     "ruff==0.0.282",
+    "tomli~=2.0; python_version<'3.11'",
 ]
 docs = ["sphinx~=7.1", "pydata-sphinx-theme~=0.13"]
 
diff --git a/scripts/install-min-dependencies b/scripts/install-min-dependencies
new file mode 100644
index 0000000..68b15a9
--- /dev/null
+++ b/scripts/install-min-dependencies
@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+
+"""Installs the minimum version of all dependencies, with pip.
+
+Assumptions:
+- You've installed the development dependencies: `pip install '.[dev]'`
+- All of the dependencies in pyproject.toml are specified with `>=`
+"""
+
+import subprocess
+import sys
+from pathlib import Path
+
+from packaging.requirements import Requirement
+
+assert sys.version_info[0] == 3
+if sys.version_info[1] < 11:
+    import tomli as toml
+else:
+    import tomllib as toml
+
+
+root = Path(__file__).parents[1]
+with open(root / "pyproject.toml", "rb") as f:
+    pyproject_toml = toml.load(f)
+requirements = []
+for install_requires in filter(
+    bool,
+    (i.strip() for i in pyproject_toml["project"]["dependencies"]),
+):
+    requirement = Requirement(install_requires)
+    assert len(requirement.specifier) == 1
+    specifier = list(requirement.specifier)[0]
+    assert specifier.operator == ">="
+    install_requires = install_requires.replace(">=", "==")
+    requirements.append(install_requires)
+
+subprocess.run(["pip", "install", *requirements], check=True)