Allow to expand macros from external integrations

Allow to expand macros used in variables when the variable functions
are called outside the project.

Signed-off-by: Marcus Burghardt <maburgha@redhat.com>

ssg/variables.py

@@ -8,7 +8,7 @@
 from collections import defaultdict
 from .constants import BENCHMARKS
 from .profiles import get_profiles_from_products
-from .yaml import open_and_macro_expand
+from .yaml import open_and_macro_expand_from_dir
 
 
 if sys.version_info >= (3, 9):
@@ -82,7 +82,7 @@ def _get_variables_content(content_dir: str) -> dict_type:
 
     for var_file in get_variable_files(content_dir):
         try:
-            yaml_content = open_and_macro_expand(var_file)
+            yaml_content = open_and_macro_expand_from_dir(var_file, content_dir)
         except Exception as e:
             print(f"Error processing file {var_file}: {e}")
             continue

tests/unit/ssg-module/test_variables.py

@@ -1,5 +1,4 @@
 import os
-import pytest
 
 from ssg.constants import BENCHMARKS
 from ssg.variables import (
@@ -22,6 +21,10 @@ def setup_test_files(base_dir, benchmark_dirs, create_txt_file=False):
         benchmark_dirs (list[str]): List of benchmark folder paths to create.
         create_txt_file (bool): Whether to create an additional .txt file in each benchmark.
     """
+    # Ensures the shared/macros directory exists even if in this case the testing example does
+    # not use Jinja2 macros.
+    os.makedirs(base_dir / "shared" / "macros", exist_ok=True)
+
     for benchmark_dir in benchmark_dirs:
         path = base_dir / benchmark_dir
         os.makedirs(path, exist_ok=True)
@@ -119,6 +122,7 @@ def __init__(self, product_id, profile_id, variables):
     result = get_variables_from_profiles(profiles)
     assert result == expected_result
 
+
 def test_get_variable_property(tmp_path):
     content_dir = tmp_path / "content"
     benchmark_dirs = ["app", "app/rules"]