fix constructing param with 0 value (#8298)

* fix constructing param with 0 value

* Update core/dbt/cli/flags.py

Co-authored-by: Doug Beatty <44704949+dbeatty10@users.noreply.github.com>

---------

Co-authored-by: Doug Beatty <44704949+dbeatty10@users.noreply.github.com>

.changes/unreleased/Fixes-20230802-141556.yaml

@@ -0,0 +1,6 @@
+kind: Fixes
+body: Fix retry not working with log-file-max-bytes
+time: 2023-08-02T14:15:56.306027-07:00
+custom:
+  Author: ChenyuLInx
+  Issue: "8297"

core/dbt/cli/flags.py

@@ -61,7 +61,6 @@ def args_to_context(args: List[str]) -> Context:
     if len(args) == 1 and "," in args[0]:
         args = args[0].split(",")
     sub_command_name, sub_command, args = cli.resolve_command(cli_ctx, args)
-
     # Handle source and docs group.
     if isinstance(sub_command, Group):
         sub_command_name, sub_command, args = sub_command.resolve_command(cli_ctx, args)
@@ -319,7 +318,6 @@ def command_params(command: CliCommand, args_dict: Dict[str, Any]) -> CommandPar
 
     for k, v in args_dict.items():
         k = k.lower()
-
         # if a "which" value exists in the args dict, it should match the command provided
         if k == WHICH_KEY:
             if v != command.value:
@@ -344,7 +342,8 @@ def add_fn(x):
 
         if k == "macro" and command == CliCommand.RUN_OPERATION:
             add_fn(v)
-        elif v in (None, False):
+        # None is a Singleton, False is a Flyweight, only one instance of each.
+        elif v is None or v is False:
             add_fn(f"--no-{spinal_cased}")
         elif v is True:
             add_fn(f"--{spinal_cased}")

tests/unit/test_cli_flags.py

@@ -391,3 +391,8 @@ def test_from_dict__which_fails(self):
         args_dict = {"which": "some bad command"}
         with pytest.raises(DbtInternalError, match=r"does not match value of which"):
             self._create_flags_from_dict(Command.RUN, args_dict)
+
+    def test_from_dict_0_value(self):
+        args_dict = {"log_file_max_bytes": 0}
+        flags = Flags.from_dict(Command.RUN, args_dict)
+        assert flags.LOG_FILE_MAX_BYTES == 0