Moved Jinja utility functions to S++.

SConscript

@@ -21,7 +21,8 @@ def _parse_lib_conf(env: Environment, lib_conf: dict) -> None:
     env.Append(CPPPATH = lib_conf.get('CPPPATH', []),
                CPPDEFINES = lib_conf.get('CPPDEFINES', []),
                LIBPATH = lib_conf.get('LIBPATH', []),
-               LIBS = lib_conf.get('LIBS', []))
+               LIBS = lib_conf.get('LIBS', []),
+               JINJA_TEMPLATE_SEARCHPATH = lib_conf.get('JINJA_TEMPLATE_SEARCHPATH', []))
 
 def _inject_list(kwargs: dict, dependency: dict, list_name: str) -> None:
     if list_name not in dependency:
@@ -359,6 +360,8 @@ env.AddMethod(_wrap_builder(env.UnitySharedLibrary, is_lib = True), 'UnityShared
 if hasattr(env, 'Gch'):
     env.AddMethod(_wrap_builder(env.Gch), 'Gch')
 
+if hasattr(env, 'Jinja'):
+    env = SConscript('addons/jinja.py', exports = 'env')
 
 if dump_env:
     print('==== Begin Environment Dump =====')

addons/jinja.py

@@ -0,0 +1,35 @@
+
+import pathlib
+
+Import('env')
+
+def _jinja_load_config(env, config_name):
+    searched_paths = []
+    for scons_path in env['JINJA_CONFIG_SEARCHPATH']:
+        if hasattr(scons_path, 'abspath'):
+            scons_path = scons_path.abspath
+        path = pathlib.Path(scons_path) / f'{config_name}.yml'
+        if path.exists():
+            with path.open('r') as file:
+                import yaml
+                return yaml.safe_load(file)
+        searched_paths.append(f'\n{path}')
+    joined_paths = ''.join(searched_paths)
+    raise Exception(f'Could not find Jinja config file "{config_name}.yml". Searched: {joined_paths}')
+def _wrap_jinja(orig_jinja):
+    def _wrapped(env, target, **kwargs):
+        if 'source' not in kwargs:
+            kwargs['source'] = f'{target}.jinja'
+        target = orig_jinja(**kwargs)
+        if 'depends' in kwargs:
+            for dependency in kwargs['depends']:
+                env.Depends(target, dependency)
+        # env.Depends(alias_prepare, target)
+        return target
+    return _wrapped
+
+env.AddMethod(_wrap_jinja(env.Jinja), 'Jinja')
+env.Append(JINJA_FILTERS = {'load_config': _jinja_load_config})
+env.Append(JINJA_TEMPLATE_SEARCHPATH = ['data/jinja'])
+env['JINJA_CONFIG_SEARCHPATH'] = [env.Dir('#data/config')]
+Return('env')