feat(cli): Changed CLI parameters for Ownership to be explicit

I've updated how CLI arguments for owners work. Specifically, I've changed to arguments to no longer use user input to know the field name. Instad, there are new `--owner-name`, `--owner-email`, and `--owner-properties` fields. The `--owner-properties` field is used to supply a YML string that is parsed for extra properities in the object.

BREAKING CHANGE: Creates a breaking change in CLI arguments relative to current version
Resolves: dbt-labs#65

dbt_meshify/main.py

@@ -1,8 +1,10 @@
+import functools
 import os
 from pathlib import Path
 from typing import Any, Dict, List, Optional, Tuple
 
 import click
+import yaml
 from dbt.contracts.graph.unparsed import Owner
 
 from .dbt_projects import DbtProject, DbtProjectHolder, DbtSubProject
@@ -36,12 +38,19 @@
     help="The dbt selection syntax specifying the resources to include in the operation",
 )
 
-owner = click.option(
-    "--owner",
-    nargs=2,
-    multiple=True,
-    type=click.Tuple([str, str]),
-    help="A tuple of Owner information for the group. For example " "`--owner name example`",
+owner_name = click.option(
+    "--owner-name",
+    help="The group Owner's name.",
+)
+
+owner_email = click.option(
+    "--owner-email",
+    help="The group Owner's email address.",
+)
+
+owner_properties = click.option(
+    "--owner-properties",
+    help="Additional properties to assign to a group Owner.",
 )
 
 selector = click.option(
@@ -51,6 +60,20 @@
 )
 
 
+def owner(func):
+    """Add click options and argument validation for creating Owner objects."""
+
+    @functools.wraps(func)
+    def wrapper_decorator(*args, **kwargs):
+        print("Validating owner configs.")
+        # Do something before
+        value = func(*args, **kwargs)
+        # Do something after
+        return value
+
+    return wrapper_decorator
+
+
 # define cli group
 @click.group()
 def cli():
@@ -187,14 +210,19 @@ def add_version(select, exclude, project_path, selector, prerelease, defined_in)
 @select
 @selector
 @click.argument("name")
+@owner_name
+@owner_email
+@owner_properties
 @owner
 @group_yml_path
 def create_group(
     name,
     project_path: os.PathLike,
-    owner: List[Tuple[str, str]],
     group_yml_path: os.PathLike,
     select: str,
+    owner_name: Optional[str] = None,
+    owner_email: Optional[str] = None,
+    owner_properties: str = '{}',
     exclude: Optional[str] = None,
     selector: Optional[str] = None,
 ):
@@ -216,7 +244,9 @@ def create_group(
             "The provided group-yml-path is not contained within the provided dbt project."
         )
 
-    owner: Owner = Owner(**{key: value for key, value in owner})
+    owner: Owner = Owner(
+        name=owner_name, email=owner_email, _extra=yaml.safe_load(owner_properties)
+    )
 
     grouper = ResourceGrouper(project)
     grouper.add_group(
@@ -235,16 +265,20 @@ def create_group(
 @select
 @selector
 @click.argument("name")
-@owner
+@owner_name
+@owner_email
+@owner_properties
 @group_yml_path
 @click.pass_context
 def group(
     ctx,
     name,
     project_path: os.PathLike,
-    owner: List[Tuple[str, str]],
     group_yml_path: os.PathLike,
     select: str,
+    owner_name: Optional[str] = None,
+    owner_email: Optional[str] = None,
+    owner_properties: Optional[str] = None,
     exclude: Optional[str] = None,
     selector: Optional[str] = None,
 ):