Add support for source aliases (#2133)

CHANGELOG.md

@@ -3,6 +3,7 @@
 - Added --fail-fast argument for dbt run and dbt test to fail on first test failure or runtime error. ([#1649](https://github.com/fishtown-analytics/dbt/issues/1649), [#2224](https://github.com/fishtown-analytics/dbt/pull/2224))
 - Support for appending query comments to SQL queries. ([#2138](https://github.com/fishtown-analytics/dbt/issues/2138), [#2199](https://github.com/fishtown-analytics/dbt/pull/2199))
 - Added a `get-manifest` API call. ([#2168](https://github.com/fishtown-analytics/dbt/issues/2168), [#2232](https://github.com/fishtown-analytics/dbt/pull/2232))
+- Support adapter-specific aliases (like `project` and `dataset` on BigQuery) in source definitions. ([#2133](https://github.com/fishtown-analytics/dbt/issues/2133), [#2244](https://github.com/fishtown-analytics/dbt/pull/2244))
 - Users can now use jinja as arguments to tests. Test arguments are rendered in the native context and injected into the test execution context directly. ([#2149](https://github.com/fishtown-analytics/dbt/issues/2149), [#2220](https://github.com/fishtown-analytics/dbt/pull/2220))
 
 ### Fixes

core/dbt/parser/schemas.py

@@ -530,6 +530,7 @@ def get_unparsed_target(self) -> Iterable[SourceTarget]:
 
         for data in self.get_key_dicts():
             try:
+                data = self.project.credentials.translate_aliases(data)
                 data = self._renderer.render_schema_source(data)
                 source = UnparsedSourceDefinition.from_dict(data)
             except (ValidationError, JSONValidationException) as exc:

test/integration/022_bigquery_test/models/schema.yml

@@ -49,3 +49,12 @@ models:
     - was_materialized:
         name: fUnKyCaSe
         type: view
+
+
+sources:
+  - name: raw
+    project: "{{ target.database }}"
+    dataset: "{{ target.schema }}"
+    tables:
+      - name: seed
+        identifier: data_seed

test/integration/022_bigquery_test/models/view_model.sql

@@ -11,4 +11,4 @@ select
     current_date as updated_at,
     dupe
 
-from {{ ref('data_seed') }}
+from {{ source('raw', 'seed') }}