Update deployment build --rrule input to allow start date and timez…

…ones (PrefectHQ#6761)

* Fix rrule input to allow start date and timezone

* make it one-liner

* Fall back to parsing `rrule` as string literal

* Add rrule parsing tests

Co-authored-by: Dustin Ngo <dustin.ngo@gmail.com>

src/prefect/cli/deployment.py

@@ -1,6 +1,7 @@
 """
 Command line interface for working with deployments.
 """
+import json
 from datetime import timedelta
 from enum import Enum
 from pathlib import Path
@@ -528,7 +529,10 @@ async def build(
     elif interval:
         schedule = IntervalSchedule(interval=timedelta(seconds=interval))
     elif rrule:
-        schedule = RRuleSchedule(rrule=rrule)
+        try:
+            schedule = RRuleSchedule(**json.loads(rrule))
+        except json.JSONDecodeError:
+            schedule = RRuleSchedule(rrule=rrule)
 
     # parse storage_block
     if storage_block:

tests/cli/test_deployment_cli.py

@@ -165,6 +165,52 @@ def test_auto_apply_flag(self, patch_import, tmp_path):
             temp_dir=tmp_path,
         )
 
+    def test_parsing_rrule_schedule_string_literal(self, patch_import, tmp_path):
+        invoke_and_assert(
+            [
+                "deployment",
+                "build",
+                "fake-path.py:fn",
+                "-n",
+                "TEST",
+                "-o",
+                str(tmp_path / "test.yaml"),
+                "--rrule",
+                "DTSTART:20220910T110000\nRRULE:FREQ=HOURLY;BYDAY=MO,TU,WE,TH,FR,SA;BYHOUR=9,10,11,12,13,14,15,16,17",
+            ],
+            expected_code=0,
+            temp_dir=tmp_path,
+        )
+
+        deployment = Deployment.load_from_yaml(tmp_path / "test.yaml")
+        assert (
+            deployment.schedule.rrule
+            == "DTSTART:20220910T110000\nRRULE:FREQ=HOURLY;BYDAY=MO,TU,WE,TH,FR,SA;BYHOUR=9,10,11,12,13,14,15,16,17"
+        )
+
+    def test_parsing_rrule_schedule_json(self, patch_import, tmp_path):
+        invoke_and_assert(
+            [
+                "deployment",
+                "build",
+                "fake-path.py:fn",
+                "-n",
+                "TEST",
+                "-o",
+                str(tmp_path / "test.yaml"),
+                "--rrule",
+                '{"rrule": "DTSTART:20220910T110000\\nRRULE:FREQ=HOURLY;BYDAY=MO,TU,WE,TH,FR,SA;BYHOUR=9,10,11,12,13,14,15,16,17", "timezone": "America/New_York"}',
+            ],
+            expected_code=0,
+            temp_dir=tmp_path,
+        )
+
+        deployment = Deployment.load_from_yaml(tmp_path / "test.yaml")
+        assert (
+            deployment.schedule.rrule
+            == "DTSTART:20220910T110000\nRRULE:FREQ=HOURLY;BYDAY=MO,TU,WE,TH,FR,SA;BYHOUR=9,10,11,12,13,14,15,16,17"
+        )
+
 
 class TestOutputMessages:
     def test_message_with_work_queue_name(self, patch_import, tmp_path):