vivado: add script to generate component.xml

scripts/gen_vivado_component.py

+#!/usr/bin/python3
+"""
+Generate vivado component file in /src/component.xml.
+
+Serves to update the list of source files -- run when you add/delete/rename
+a src vhdl file.
+"""
+
+from jinja2 import Environment, FileSystemLoader, select_autoescape
+from pathlib import Path
+
+d = Path(__file__).parent
+
+jinja_env = Environment(
+                loader=FileSystemLoader(str(d)),
+                autoescape=select_autoescape(['html', 'xml']))
+
+template = jinja_env.get_template('component.xml.j2')
+
+src_dir = d / '..' / 'src'
+files = [str(f.relative_to(src_dir)) for f in src_dir.glob('**/*.vhd')]
+files = sorted(files)
+
+contents = template.render(files=files)
+with (src_dir / 'component.xml').open('wt', encoding='utf-8') as f:
+    f.write(contents)