Merge pull request #190 from JerrettDavis/fix/release-semver-versioning

fix: run release versioning without package imports

.github/workflows/release.yml

@@ -88,7 +88,7 @@ jobs:
       - name: Compute semantic version from canonical + release history
         id: ver
         run: |
-          python -m headroom.release_version
+          python headroom/release_version.py
         env:
           LEVEL: ${{ steps.bump.outputs.level }}
           MANUAL_VER: ${{ github.event.inputs.version }}

tests/test_release_version.py

@@ -1,5 +1,10 @@
 """Tests for release version normalization and bumping."""
 
+import os
+import subprocess
+import sys
+from pathlib import Path
+
 import pytest
 
 from headroom.release_version import (
@@ -9,6 +14,8 @@ from headroom.release_version import (
     parse_release_tag,
 )
 
+ROOT = Path(__file__).resolve().parent.parent
+
 
 def test_normalize_release_tag_preserves_three_part_tag() -> None:
     assert str(normalize_release_tag("v0.5.20")) == "0.5.20"
@@ -92,3 +99,32 @@ def test_parse_release_tag_preserves_legacy_height_for_sorting() -> None:
     tag = parse_release_tag("v0.5.25.3")
     assert str(tag.version) == "0.5.25"
     assert tag.legacy_height == 3
+
+
+def test_release_version_script_runs_directly_without_importing_headroom_package(
+    tmp_path: Path,
+) -> None:
+    output_path = tmp_path / "github-output.txt"
+    env = os.environ.copy()
+    env["GITHUB_OUTPUT"] = str(output_path)
+    env["LEVEL"] = "patch"
+    env["MANUAL_VER"] = "0.6.0"
+
+    result = subprocess.run(
+        [sys.executable, str(ROOT / "headroom" / "release_version.py")],
+        cwd=ROOT,
+        capture_output=True,
+        text=True,
+        env=env,
+        check=False,
+    )
+
+    assert result.returncode == 0, result.stderr
+    assert output_path.read_text(encoding="utf-8").splitlines() == [
+        "version=0.6.0",
+        "npm_version=0.6.0",
+        "canonical=0.5.25",
+        "height=0",
+        "bump=manual",
+        "previous_tag=",
+    ]