'include' statement has been added [RHBZ#1272381]

etc/mock/site-defaults.cfg

@@ -12,6 +12,9 @@
 # The site-defaults.cfg delivered by default has NO options set. Only set
 # options here if you want to override the defaults.
 #
+# It's possiable to use include statement in order to make one config included to another:
+# include('/path/to/included/config.cfg')
+#
 # Entries in this file follow the same format as other mock config files.
 # config_opts['foo'] = bar
 

py/mockbuild/util.py

@@ -1031,6 +1031,22 @@ def check_config(config_opts):
     if 'root' not in config_opts:
         raise exception.ConfigError("Error in configuration - option config_opts['root'] must be present in your config.")
 
+@traceLog()
+def include(config_file, config_opts, is_statement=False):
+    if os.path.exists(config_file):
+        if is_statement and config_file in config_opts['config_paths']:
+            getLog().warning("Multiple inclusion of %s, skipping" % config_file)
+            return
+
+        config_opts['config_paths'].append(config_file)
+
+        with open(config_file) as f:
+            content = f.read()
+            content = re.sub(r'include\((.*)\)', r'include(\g<1>, config_opts, True)', content)
+            code = compile(content, config_file, 'exec')
+        exec(code)
+    else:
+        raise exception.ConfigError("Could not find included config file: %s" % config_file)
 
 @traceLog()
 def update_config_from_file(config_opts, config_file, uid_manager):
@@ -1041,9 +1057,7 @@ def update_config_from_file(config_opts, config_file, uid_manager):
             os.close(r_pipe)
             if uid_manager and not all(getresuid()):
                 uid_manager.dropPrivsForever()
-            with open(config_file) as f:
-                code = compile(f.read(), config_file, 'exec')
-            exec(code)
+            include(config_file, config_opts)
             writer = os.fdopen(w_pipe, 'wb')
             pickle.dump(config_opts, writer)
         except: