fix(release): verify tags in mounted workspaces

tests/test_version_alignment.py

@@ -6,6 +6,7 @@ import subprocess
 import sys
 import tempfile
 import unittest
+from unittest.mock import patch
 
 
 META_ROOT = Path(__file__).resolve().parents[1]
@@ -20,6 +21,7 @@ from govoplan_release.version_alignment import (  # noqa: E402
     repository_version_issues,
     selected_repository_version_issues,
 )
+from govoplan_release.git_state import sanitized_git_environment  # noqa: E402
 from govoplan_release.model import (  # noqa: E402
     CatalogSnapshot,
     DashboardSummary,
@@ -398,6 +400,68 @@ class VersionAlignmentTests(unittest.TestCase):
         )
         self.assertTrue(all("must contain" in issue.message for issue in issues))
 
+    def test_annotated_release_tags_work_with_sanitized_git_configuration(self) -> None:
+        with tempfile.TemporaryDirectory() as tmp:
+            workspace = Path(tmp)
+            meta = workspace / "govoplan"
+            core = workspace / "govoplan-core"
+            module = workspace / "govoplan-example"
+            meta.mkdir()
+            (core / "webui").mkdir(parents=True)
+            (module / "webui").mkdir(parents=True)
+            backend_ref = "git+ssh://git@example.test/acme/govoplan-example.git@v1.2.3"
+            webui_ref = "git+ssh://git@example.test/acme/govoplan-example.git#v1.2.3"
+            (meta / "requirements-release.txt").write_text(f"govoplan-example @ {backend_ref}\n")
+            (module / "pyproject.toml").write_text('[project]\nname="govoplan-example"\nversion="1.2.3"\n')
+            (module / "webui" / "package.json").write_text(
+                '{"name":"@govoplan/example-webui","version":"1.2.3"}\n'
+            )
+            subprocess.run(["git", "init", "-q", str(module)], check=True)
+            subprocess.run(["git", "-C", str(module), "config", "user.email", "test@example.test"], check=True)
+            subprocess.run(["git", "-C", str(module), "config", "user.name", "Test"], check=True)
+            subprocess.run(["git", "-C", str(module), "add", "pyproject.toml", "webui/package.json"], check=True)
+            subprocess.run(["git", "-C", str(module), "commit", "-qm", "release"], check=True)
+            subprocess.run(
+                ["git", "-C", str(module), "tag", "-a", "v1.2.3", "-m", "Release v1.2.3"],
+                check=True,
+            )
+            tagged_commit = subprocess.run(
+                ["git", "-C", str(module), "rev-parse", "refs/tags/v1.2.3^{commit}"],
+                check=True,
+                text=True,
+                stdout=subprocess.PIPE,
+            ).stdout.strip()
+            dependencies = {"@govoplan/example-webui": webui_ref}
+            (core / "pyproject.toml").write_text('[project]\nname="govoplan-core"\nversion="2.0.0"\n')
+            (core / "webui" / "package.release.json").write_text(
+                json.dumps({"version": "2.0.0", "dependencies": dependencies})
+            )
+            (core / "webui" / "package-lock.release.json").write_text(
+                json.dumps(
+                    {
+                        "packages": {
+                            "": {"version": "2.0.0", "dependencies": dependencies},
+                            "node_modules/@govoplan/example-webui": {
+                                "version": "1.2.3",
+                                "resolved": f"git+ssh://git@example.test/acme/govoplan-example.git#{tagged_commit}",
+                            },
+                        }
+                    }
+                )
+            )
+
+            git_environment = sanitized_git_environment()
+            git_environment["GIT_TEST_ASSUME_DIFFERENT_OWNER"] = "1"
+            with patch(
+                "govoplan_release.version_alignment.sanitized_git_environment",
+                return_value=git_environment,
+            ):
+                composition_issues = release_composition_issues(meta, core_root=core)
+                core_issues = repository_version_issues(core)
+
+        self.assertEqual((), composition_issues)
+        self.assertEqual((), core_issues)
+
 
 if __name__ == "__main__":
     unittest.main()

tools/release/govoplan_release/version_alignment.py

@@ -681,10 +681,22 @@ def _git_lock_resolution_issues(
 
 
 def _git_tag_commit(repo_path: Path, tag: str) -> str | None:
+    repo_path = repo_path.resolve()
     if not (repo_path / ".git").exists():
         return None
     result = subprocess.run(
-        ["/usr/bin/git", "-C", str(repo_path), "rev-list", "-n", "1", tag],
+        [
+            "/usr/bin/git",
+            "-c",
+            "core.hooksPath=/dev/null",
+            "-c",
+            f"safe.directory={repo_path}",
+            "-C",
+            str(repo_path),
+            "rev-parse",
+            "--verify",
+            f"refs/tags/{tag}^{{commit}}",
+        ],
         check=False,
         text=True,
         stdout=subprocess.PIPE,
@@ -697,10 +709,22 @@ def _git_tag_commit(repo_path: Path, tag: str) -> str | None:
 
 
 def _git_tag_file(repo_path: Path, tag: str, relative_path: str) -> str | None:
+    repo_path = repo_path.resolve()
     if not (repo_path / ".git").exists():
         return None
     result = subprocess.run(
-        ["/usr/bin/git", "-C", str(repo_path), "show", f"{tag}:{relative_path}"],
+        [
+            "/usr/bin/git",
+            "-c",
+            "core.hooksPath=/dev/null",
+            "-c",
+            f"safe.directory={repo_path}",
+            "-C",
+            str(repo_path),
+            "cat-file",
+            "blob",
+            f"refs/tags/{tag}^{{commit}}:{relative_path}",
+        ],
         check=False,
         text=True,
         stdout=subprocess.PIPE,