Sbachmei/mic 5755/improve supported py version handling

.github/workflows/build.yml

@@ -11,11 +11,25 @@ name: build
 on: [push, pull_request, workflow_dispatch]
 
 jobs:
+  get-python-versions:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Install jq
+        run: sudo apt-get install jq
+      - name: Get Python versions
+        id: set-matrix
+        run: |
+          echo "MATRIX_RESULT=$(jq -c . python_versions.json)" >> $GITHUB_ENV
+    outputs:
+      matrix: ${{ env.MATRIX_RESULT }}
   build:
+    needs: get-python-versions
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.11", "3.12"]
+        python-version: ${{ fromJSON(needs.get-python-versions.outputs.matrix) }}
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}

.github/workflows/update_readme.yml

@@ -0,0 +1,33 @@
+# -----------------------------------------------------------------------------
+#   - invoked on push to any branch
+# -----------------------------------------------------------------------------
+    name: update README
+
+    on: push
+
+    jobs:
+      update-readme:
+        runs-on: ubuntu-latest
+        steps:
+          - name: Checkout code
+            uses: actions/checkout@v2
+          - name: Set up Python
+            uses: actions/setup-python@v2
+            with:
+              python-version: 3.11
+          - name: Update README
+            run: |
+              pip install packaging
+              python update_readme.py
+          - name: Commit and push changes
+            run: |
+              git config --local user.email "[email protected]"
+              git config --local user.name "github-actions"
+              git diff --quiet && git diff --staged --quiet || (
+                git add README.rst
+                git commit -am "update README with supported Python versions"
+                git pull --rebase origin ${{ github.ref_name }}
+                git push origin ${{ github.ref_name }}
+              )
+            env:
+              GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

README.rst

@@ -7,7 +7,7 @@ entity resolution (ER) pipelines.
 
 .. _python_support:
 
-Supported Python versions: 3.11, 3.12
+**Supported Python versions: 3.1, 3.2**
 
 .. _end_python_support:
 

pyproject.toml

@@ -1,3 +1,6 @@
+[build-system]
+requires = ["packaging", "setuptools"]
+
 [tool.black]
 line_length = 94
 

python_versions.json

@@ -0,0 +1 @@
+["3.11", "3.12"]

setup.py

@@ -1,8 +1,36 @@
 #!/usr/bin/env python
+import json
 import os
+import sys
 
+from packaging.version import parse
 from setuptools import find_packages, setup
 
+with open("python_versions.json", "r") as f:
+    supported_python_versions = json.load(f)
+
+python_versions = [parse(v) for v in supported_python_versions]
+min_version = min(python_versions)
+max_version = max(python_versions)
+if not (
+    min_version <= parse(".".join([str(v) for v in sys.version_info[:2]])) <= max_version
+):
+    py_version = ".".join([str(v) for v in sys.version_info[:3]])
+    # NOTE: Python 3.5 does not support f-strings
+    error = (
+        "\n--------------------------------------------\n"
+        "Error: EasyLink runs under python {min_version}-{max_version}.\n"
+        "You are running python {py_version}.\n".format(
+            min_version=min_version.base_version,
+            max_version=max_version.base_version,
+            py_version=py_version,
+        )
+        + "--------------------------------------------\n"
+    )
+    print(error, file=sys.stderr)
+    sys.exit(1)
+
+
 if __name__ == "__main__":
     base_dir = os.path.dirname(__file__)
     src_dir = os.path.join(base_dir, "src")

update_readme.py

@@ -0,0 +1,32 @@
+""" This script updates the README.rst file with the latest information about
+the project. It is intended to be run from the github "update README" workflow.
+"""
+
+import json
+import re
+
+from packaging.version import parse
+
+# Load supported python versions
+with open("python_versions.json", "r") as f:
+    versions = json.load(f)
+versions_str = ", ".join(versions)
+versions = [parse(v) for v in versions]
+max_version = max(versions).base_version
+
+# Open README and replace python versions
+with open("README.rst", "r") as file:
+    readme = file.read()
+# Update the list of supported python versions
+# NOTE: this regex assumes the version format is always major.minor
+readme = re.sub(
+    r"Supported Python versions:\s*(?:\d+\.\d+\s*,\s*)+\d+\.\d+",
+    r"Supported Python versions: " + versions_str,
+    readme,
+)
+# Update the python version used in the installation code snipped example
+readme = re.sub(r"python=\d+\.\d+", "python=" + max_version, readme)
+
+# Write the updated README back to file
+with open("README.rst", "w") as file:
+    file.write(readme)