add just file for updating python versions

.justfile

@@ -0,0 +1,56 @@
+[positional-arguments]
+pin python_version:
+    rye pin $1 --relaxed
+    rye sync
+    rye test
+
+[positional-arguments]
+update_workflow minimum_version maximum_version:
+    #! /usr/bin/env python3
+    from pathlib import Path
+    import sys
+
+    workflow = Path('.github/workflows/package_testing.yml')
+
+    vmin = sys.argv[1]
+    vmax = sys.argv[2]
+
+    minor_min = int(vmin.split(".")[1])
+    minor_max = int(vmax.split(".")[1])
+
+    with open(workflow) as f:
+        content = f.readlines()
+
+    for it, line in enumerate(content):
+        if "MAIN_PYTHON_VERSION: " in line:
+            print(it)
+            content[it] = f'  MAIN_PYTHON_VERSION: "{vmax}"\n'
+        elif "python-version:" in line:
+            new_line = f'        python-version: ['
+            for jt in range(minor_min, minor_max):
+                new_line += f'"3.{jt}", '
+            new_line += f'"3.{minor_max}"]\n'
+            content[it] = new_line
+
+    with open(workflow, 'w') as f:
+        f.writelines(content)
+
+[positional-arguments]
+python_update minimum_version maximum_version:
+    # ensure git is clean
+    git status | grep "nothing to commit" || exit 1
+
+    just pin $1
+    just update_workflow $1 $2
+
+    # git add and commit
+    export BRANCH_NAME="update_python_$2"
+    git checkout -b $BRANCH_NAME
+
+    git add .
+    git commit -m "Update supported python to $2, minimum version $1"
+
+    git push origin $BRANCH_NAME
+
+    # create PR with gh
+    gh pr create --title "Update supported python to $2, minimum version $1" --body "This PR updates the supported python version to $2, with a minimum version of $1" --base main --head $BRANCH_NAME