Allow partial parsing when default target and profile names are used (#12498)

* use resolved profile and target name

* fix mock_project for ut

Author: ash2shukla

.changes/unreleased/Fixes-20260216-230817.yaml

@@ -0,0 +1,6 @@
+kind: Fixes
+body: Use resolved profile and target names to allow partial parsing for default profile and target
+time: 2026-02-16T23:08:17.820862+05:30
+custom:
+    Author: akshatha-code71 ash2shukla
+    Issue: "7612"

core/dbt/parser/manifest.py

@@ -1034,8 +1034,8 @@ def build_manifest_state_check(self):
             "\x00".join(
                 [
                     stringified_cli_vars,
-                    getattr(config.args, "profile", "") or "",
-                    getattr(config.args, "target", "") or "",
+                    config.profile_name,
+                    config.target_name,
                     __version__,
                 ]
             )
@@ -1044,8 +1044,8 @@ def build_manifest_state_check(self):
             StateCheckVarsHash(
                 checksum=vars_hash.checksum,
                 vars=scrub_secrets(stringified_cli_vars, secret_vars),
-                profile=config.args.profile,
-                target=config.args.target,
+                profile=config.profile_name,
+                target=config.target_name,
                 version=__version__,
             )
         )

tests/functional/partial_parsing/test_partial_parsing.py

@@ -9,6 +9,7 @@
 import dbt.flags as flags
 from dbt.contracts.files import ParseFileType
 from dbt.contracts.results import TestStatus
+from dbt.events.types import UnableToPartialParse
 from dbt.exceptions import CompilationError
 from dbt.plugins.manifest import ModelNodeArgs, PluginNodes
 from dbt.tests.fixtures.project import write_project_files
@@ -20,6 +21,7 @@
     run_dbt_and_capture,
     write_file,
 )
+from dbt_common.events.event_catcher import EventCatcher
 from tests.functional.partial_parsing.fixtures import (
     custom_schema_tests1_sql,
     custom_schema_tests2_sql,
@@ -996,3 +998,17 @@ def test_profile_change(self, project, dbt_profile_data):
         write_file(yaml.safe_dump(dbt_profile_data), project.profiles_dir, "profiles.yml")
         _, stdout = run_dbt_and_capture(["parse"])
         assert "Unable to do partial parsing" not in stdout
+
+
+class TestExplicitDefaultProfileAndTarget:
+    def test_explicit_default_profile_allows_partial_parse(self, project):
+        event_catcher = EventCatcher(UnableToPartialParse)
+        run_dbt(["parse"])
+        run_dbt(["parse", "--profile", "test"], callbacks=[event_catcher.catch])
+        assert len(event_catcher.caught_events) == 0
+
+    def test_explicit_default_target_allows_partial_parse(self, project):
+        event_catcher = EventCatcher(UnableToPartialParse)
+        run_dbt(["parse"])
+        run_dbt(["parse", "--target", "default"], callbacks=[event_catcher.catch])
+        assert len(event_catcher.caught_events) == 0

tests/unit/utils/project.py

@@ -82,6 +82,8 @@ def mock_project():
     mock_project = MagicMock(RuntimeConfig)
     mock_project.cli_vars = {}
     mock_project.args = MagicMock()
+    mock_project.profile_name = "test"
+    mock_project.target_name = "test"
     mock_project.args.profile = "test"
     mock_project.args.target = "test"
     mock_project.project_env_vars = {}