DEVX-57: feat: add FORCE_DEPLOY env var, --git flag, --from-tag flag

tests/unit/test_classify_changes.py

@@ -788,3 +788,49 @@ class TestGithubOutput:
         content = gh_file.read_text()
         assert "user-facing-changed=true" in content
         assert "ansible-changed" not in content
+
+    @patch("devx.ci.classify_changes._get_classifier")
+    def test_force_deploy_env_var(self, mock_clf: MagicMock, tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
+        """FORCE_DEPLOY=true env var activates force mode without --force flag."""
+        mock_clf.return_value = self._make_classifier_with_ansible()
+        gh_file = tmp_path / "output.txt"
+        monkeypatch.setenv("GITHUB_OUTPUT", str(gh_file))
+        monkeypatch.setenv("FORCE_DEPLOY", "true")
+        runner = CliRunner()
+        result = runner.invoke(main, ["--github-output"])
+        assert result.exit_code == 0
+        content = gh_file.read_text()
+        assert "user-facing-changed=true" in content
+        assert "ansible-changed=true" in content
+
+    @patch("devx.ci.classify_changes._get_classifier")
+    def test_force_deploy_env_var_false(
+        self, mock_clf: MagicMock, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
+    ) -> None:
+        """FORCE_DEPLOY=false does not activate force mode."""
+        mock_clf.return_value = self._make_classifier_with_ansible()
+        gh_file = tmp_path / "output.txt"
+        monkeypatch.setenv("GITHUB_OUTPUT", str(gh_file))
+        monkeypatch.setenv("FORCE_DEPLOY", "false")
+        with patch.object(classify_changes_mod, "get_latest_tag", return_value="v1.0"):
+            with patch.object(classify_changes_mod, "get_changed_files", return_value=[]):
+                runner = CliRunner()
+                result = runner.invoke(main, ["--github-output"])
+        assert result.exit_code == 0
+        content = gh_file.read_text()
+        assert "user-facing-changed=false" in content
+
+    @patch("devx.ci.classify_changes._get_classifier")
+    def test_force_flag_overrides_env_var(
+        self, mock_clf: MagicMock, tmp_path: Path, monkeypatch: pytest.MonkeyPatch
+    ) -> None:
+        """--force flag works even when FORCE_DEPLOY=false."""
+        mock_clf.return_value = self._make_classifier_with_ansible()
+        gh_file = tmp_path / "output.txt"
+        monkeypatch.setenv("GITHUB_OUTPUT", str(gh_file))
+        monkeypatch.setenv("FORCE_DEPLOY", "false")
+        runner = CliRunner()
+        result = runner.invoke(main, ["--github-output", "--force"])
+        assert result.exit_code == 0
+        content = gh_file.read_text()
+        assert "user-facing-changed=true" in content