fix formatting issues with output

src/envars/cli.py

@@ -11,6 +11,7 @@
 
 from .cloud_utils import get_default_location_name
 from .main import (
+    PrettyDumper,
     Secret,
     _check_for_circular_dependencies,
     _get_decrypted_value,
@@ -392,11 +393,16 @@ def output_command(
         resolved_vars = _get_resolved_variables(manager, loc, env, decrypt=True)
         if format == "dotenv":
             for k, v in resolved_vars.items():
-                console.print(f"{k}={v}")
+                if "\n" in v:
+                    # Escape newlines and wrap in quotes for dotenv format
+                    escaped_v = v.replace("\n", "\\n")
+                    print(f'{k}="{escaped_v}"')
+                else:
+                    print(f"{k}={v}")
         elif format == "yaml":
-            console.print(yaml.dump({"envars": resolved_vars}, sort_keys=False))
+            print(yaml.dump({"envars": resolved_vars}, sort_keys=False, Dumper=PrettyDumper))
         elif format == "json":
-            console.print(json.dumps({"envars": resolved_vars}, indent=2))
+            print(json.dumps({"envars": resolved_vars}, indent=2))
         else:
             error_console.print(f"[bold red]Error:[/] Invalid output format: {format}")
             raise typer.Exit(code=1)

src/envars/main.py

@@ -40,6 +40,21 @@ def secret_constructor(loader, node):
     return Secret(value)
 
 
+def str_representer(dumper, data):
+    """Use the literal block style for multi-line strings."""
+    if "\n" in data:
+        return dumper.represent_scalar("tag:yaml.org,2002:str", data, style="|")
+    return dumper.represent_scalar("tag:yaml.org,2002:str", data)
+
+
+class PrettyDumper(yaml.Dumper):
+    pass
+
+
+yaml.add_representer(str, str_representer, Dumper=PrettyDumper)
+yaml.add_representer(Secret, secret_representer, Dumper=PrettyDumper)
+
+
 class SafeLoaderWithDuplicatesCheck(yaml.SafeLoader):
     def construct_mapping(self, node, deep=False):
         mapping = {}

tests/test_cli.py

@@ -1363,3 +1363,54 @@ def test_validate_command_with_invalid_value(self, tmp_path):
         result = runner.invoke(app, ["--file", file_path, "validate"])
         assert result.exit_code == 1
         assert "Value 'invalid_value' for variable 'MY_VAR' does not match validation regex" in result.stderr
+
+
+def test_output_multiline_secret_dotenv(tmp_path):
+    encrypted_string = base64.b64encode(b"some_encrypted_bytes").decode("utf-8")
+    initial_content = f"""
+configuration:
+  app: MyApp
+  kms_key: \"arn:aws:kms:us-east-1:123456789012:key/mrk-12345\"
+  environments:
+    - dev
+  locations:
+    - my_loc: \"loc123\"
+environment_variables:
+  MY_MULTILINE_SECRET:
+    dev:
+      my_loc: !secret {encrypted_string}
+"""
+    file_path = create_envars_file(tmp_path, initial_content)
+
+    multiline_value = "line1\nline2\nline3"
+
+    kms_client = boto3.client("kms", region_name="us-east-1")
+    with Stubber(kms_client) as stubber:
+        stubber.add_response(
+            "decrypt",
+            {"Plaintext": multiline_value.encode("utf-8")},
+            {
+                "CiphertextBlob": b"some_encrypted_bytes",
+                "EncryptionContext": {"app": "MyApp", "env": "dev", "location": "my_loc"},
+            },
+        )
+        with patch("boto3.client", return_value=kms_client):
+            result = runner.invoke(
+                app,
+                [
+                    "--file",
+                    file_path,
+                    "output",
+                    "--format",
+                    "dotenv",
+                    "--env",
+                    "dev",
+                    "--loc",
+                    "my_loc",
+                ],
+            )
+            assert result.exit_code == 0, result.stderr
+            escaped_multiline_value = multiline_value.replace("\n", "\\n")
+            expected_output = f'MY_MULTILINE_SECRET="{escaped_multiline_value}"'
+            assert expected_output in result.stdout
+            stubber.assert_no_pending_responses()