feat(cli): add --extra-yaml to cci task info

Author: jstvz

cumulusci/cli/task.py

@@ -5,6 +5,7 @@
 from rich.console import Console
 from rst2ansi import rst2ansi
 
+from cumulusci.cli.extra_yaml import resolve_extra_yaml
 from cumulusci.core.config import TaskConfig
 from cumulusci.core.exceptions import CumulusCIUsageError
 from cumulusci.utils import doc_task
@@ -95,8 +96,21 @@ def task_doc(runtime, project=False, write=False):
 
 @task.command(name="info", help="Displays information for a task")
 @click.argument("task_name")
+@click.option(
+    "--extra-yaml",
+    "extra_yaml",
+    multiple=True,
+    type=click.Path(),
+    help=(
+        "Path to an additional YAML file to merge into the project config "
+        "for this command only. Can be specified multiple times; later files "
+        "override earlier ones. Also honors CUMULUSCI_EXTRA_YAML env var "
+        "(colon-separated paths) as a fallback."
+    ),
+)
 @pass_runtime(require_project=False, require_keychain=True)
-def task_info(runtime, task_name):
+def task_info(runtime, task_name, extra_yaml):
+    runtime.reload_project_config(additional_yaml=resolve_extra_yaml(extra_yaml))
     task_config = (
         runtime.project_config.get_task(task_name)
         if runtime.project_config is not None

cumulusci/cli/tests/test_task.py

@@ -252,11 +252,36 @@ def test_task_doc_project_write(doc_task, echo, Path):
 def test_task_info(doc_task, rst2ansi):
     runtime = Mock()
     runtime.project_config.tasks__test = {"options": {}}
-    run_click_command(task.task_info, runtime=runtime, task_name="test")
+    run_click_command(task.task_info, runtime=runtime, task_name="test", extra_yaml=())
     doc_task.assert_called_once()
     rst2ansi.assert_called_once()
 
 
+@patch("cumulusci.cli.task.rst2ansi")
+@patch("cumulusci.cli.task.doc_task")
+def test_task_info__extra_yaml_applied(doc_task, rst2ansi, tmp_path):
+    extra = tmp_path / "extra.yml"
+    extra.write_text(
+        "tasks:\n"
+        "  injected_task:\n"
+        "    description: injected\n"
+        "    class_path: cumulusci.tasks.util.Sleep\n"
+    )
+    runtime = Mock()
+    runtime.project_config.tasks__injected_task = {"options": {}}
+
+    run_click_command(
+        task.task_info,
+        runtime=runtime,
+        task_name="injected_task",
+        extra_yaml=(str(extra),),
+    )
+
+    runtime.reload_project_config.assert_called_once()
+    call_kwargs = runtime.reload_project_config.call_args.kwargs
+    assert "injected" in call_kwargs["additional_yaml"]
+
+
 class SetTrace(Exception):
     pass