Add first draft render_patterns management command

Author: thibaudcolas

pattern_library/management/__init__.py

@@ -0,0 +1,36 @@
+from pathlib import Path
+
+from django.core.management.base import BaseCommand
+from django.test.client import RequestFactory
+
+from pattern_library.utils import (
+    get_pattern_templates, render_pattern
+)
+
+
+class Command(BaseCommand):
+    help = "Renders all patterns."
+
+    def handle(self, **options):
+        templates = get_pattern_templates()
+        factory = RequestFactory()
+        request = factory.get('/')
+        parent_dir = Path.cwd().joinpath('dpl-static')
+        parent_dir.mkdir(exist_ok=True)
+        self.render_group(request, parent_dir, templates)
+
+    def render_group(self, request, parent_dir: Path, pattern_templates):
+        for template in pattern_templates['templates_stored']:
+            print(template.origin.template_name)
+            print('-------------------')
+            render_path = parent_dir.joinpath(template.pattern_name)
+            render_path.write_text(render_pattern(request, template.origin.template_name))
+
+        if not pattern_templates['template_groups']:
+            return
+
+        for pattern_type_group, pattern_templates in pattern_templates['template_groups'].items():
+            print(pattern_type_group)
+            group_parent = parent_dir.joinpath(pattern_type_group)
+            group_parent.mkdir(exist_ok=True)
+            self.render_group(request, group_parent, pattern_templates)