Add generate_file function to aidge_core.

aidge_core/__init__.py

@@ -8,5 +8,5 @@ http://www.eclipse.org/legal/epl-2.0.
 SPDX-License-Identifier: EPL-2.0
 """
 from aidge_core.aidge_core import * # import so generated by PyBind
-from aidge_core.export import ExportNode
+from aidge_core.export import ExportNode, generate_file
 import aidge_core.utils

aidge_core/export/__init__.py

 from .node_export import *
+from .code_generation import *

aidge_core/export/code_generation.py

+import os
+from jinja2 import Environment, FileSystemLoader
+
+
+def generate_file(file_path: str, template_path: str, **kwargs) -> None:
+    """Generate a file at `file_path` using the jinja template located at `file_path`.
+    kwargs are used
+
+    :param file_path: path where to generate the file
+    :type file_path: str
+    :param template_path: Path to the template to use for code generation
+    :type template_path: str
+    """
+    # Get directory name of the file
+    dirname = os.path.dirname(file_path)
+
+    # If directory doesn't exist, create it
+    if not os.path.exists(dirname):
+        os.makedirs(dirname)
+
+    # Get directory name and name of the template
+    template_dir = os.path.dirname(template_path)
+    template_name = os.path.basename(template_path)
+
+    # Select template
+    template = Environment(loader=FileSystemLoader(
+        template_dir)).get_template(template_name)
+
+    # Generate file
+    content = template.render(kwargs)
+    with open(file_path, mode="w", encoding="utf-8") as message:
+        message.write(content)