Add project name to default search packages

CHANGELOG.md

@@ -17,12 +17,14 @@
 - Make finding disabled nodes more consistent ([#4069](https://github.com/dbt-labs/dbt-core/issues/4069), [#4073](https://github.com/dbt-labas/dbt-core/pull/4073))
 - Remove connection from `render_with_context` during parsing, thereby removing misleading log message ([#3137](https://github.com/dbt-labs/dbt-core/issues/3137), [#4062](https://github.com/dbt-labas/dbt-core/pull/4062))
 - Wait for postgres docker container to be ready in `setup_db.sh`. ([#3876](https://github.com/dbt-labs/dbt-core/issues/3876), [#3908](https://github.com/dbt-labs/dbt-core/pull/3908))
+- Prefer macros defined in the project over the ones in a package by default ([#4106](https://github.com/dbt-labs/dbt-core/issues/4106), [#4114](https://github.com/dbt-labs/dbt-core/pull/4114)) 
 
 Contributors:
 - [@sungchun12](https://github.com/sungchun12) ([#4017](https://github.com/dbt-labs/dbt/pull/4017))
 - [@matt-winkler](https://github.com/matt-winkler) ([#4017](https://github.com/dbt-labs/dbt/pull/4017))
 - [@NiallRees](https://github.com/NiallRees) ([#3625](https://github.com/dbt-labs/dbt/pull/3625))
 - [@rvacaru](https://github.com/rvacaru) ([#3908](https://github.com/dbt-labs/dbt/pull/3908))
+- [@JCZuurmond](https://github.com/jczuurmond) ([#4114](https://github.com/dbt-labs/dbt-core/pull/4114))
 
 ## dbt-core 1.0.0b1 (October 11, 2021)
 

core/dbt/context/providers.py

@@ -144,7 +144,7 @@ def dispatch(
         elif isinstance(namespace, str):
             search_packages = self._adapter.config.get_macro_search_order(namespace)
             if not search_packages and namespace in self._adapter.config.dependencies:
-                search_packages = [namespace]
+                search_packages = [self.config.project_name, namespace]
         else:
             # Not a string and not None so must be a list
             raise CompilationException(
@@ -162,10 +162,10 @@ def dispatch(
                     macro = self._namespace.get_from_package(
                         package_name, search_name
                     )
-                except CompilationException as exc:
-                    raise CompilationException(
-                        f'In dispatch: {exc.msg}',
-                    ) from exc
+                except CompilationException:
+                    # Only raise CompilationException if macro is not found in
+                    # any package
+                    macro = None
 
                 if package_name is None:
                     attempts.append(search_name)

test/integration/016_macro_tests/override-postgres-get-columns-macros/macros.sql

@@ -0,0 +1,3 @@
+{% macro postgres__get_columns_in_relation(relation) %}
+	{{ return('a string') }}
+{% endmacro %}

test/integration/016_macro_tests/test_macros.py

@@ -118,6 +118,64 @@ def test_postgres_overrides(self):
         self.run_dbt()
 
 
+class TestMacroOverridePackage(DBTIntegrationTest):
+    """
+    The macro in `override-postgres-get-columns-macros` should override the
+    `get_columns_in_relation` macro by default.
+    """
+
+    @property
+    def schema(self):
+        return "test_macros_016"
+
+    @property
+    def models(self):
+        return 'override-get-columns-models'
+
+    @property
+    def project_config(self):
+        return {
+            'config-version': 2,
+            'macro-paths': ['override-postgres-get-columns-macros'],
+        }
+
+    @use_profile('postgres')
+    def test_postgres_overrides(self):
+        # the first time, the model doesn't exist
+        self.run_dbt()
+        self.run_dbt()
+
+
+class TestMacroNotOverridePackage(DBTIntegrationTest):
+    """
+    The macro in `override-postgres-get-columns-macros` does NOT override the
+    `get_columns_in_relation` macro because we tell dispatch to not look at the
+    postgres macros.
+    """
+
+    @property
+    def schema(self):
+        return "test_macros_016"
+
+    @property
+    def models(self):
+        return 'override-get-columns-models'
+
+    @property
+    def project_config(self):
+        return {
+            'config-version': 2,
+            'macro-paths': ['override-postgres-get-columns-macros'],
+            'dispatch': [{'macro_namespace': 'dbt', 'search_order': ['dbt']}],
+        }
+
+    @use_profile('postgres')
+    def test_postgres_overrides(self):
+        # the first time, the model doesn't exist
+        self.run_dbt(expect_pass=False)
+        self.run_dbt(expect_pass=False)
+
+
 class TestDispatchMacroOverrideBuiltin(TestMacroOverrideBuiltin):
     # test the same functionality as above, but this time,
     # dbt.get_columns_in_relation will dispatch to a default__ macro