Prepare KarlDNS production deployment

karldns/web/icons.py

@@ -0,0 +1,36 @@
+from __future__ import annotations
+
+import re
+from functools import cache
+from pathlib import Path
+
+from .html_utils import SafeHtml, attr, trusted
+
+_ICON_DIR = Path(__file__).parents[1] / "assets" / "lucide"
+_ICON_FILES = {
+    "blog": "newspaper",
+    "business": "briefcase",
+    "docs": "book-open",
+    "github": "code",
+    "more": "ellipsis-vertical",
+    "privacy": "shield-check",
+}
+
+
+def _svg_icon(name: str, css_class: str = "copy-icon") -> SafeHtml:
+    path = _lucide_body(name)
+    safe_class = attr(f"lucide-icon {css_class}")
+    return trusted(
+        f'<svg class="{safe_class}" aria-hidden="true" focusable="false" width="16" height="16" viewBox="0 0 24 24" '
+        f'fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">{path}</svg>'
+    )
+
+
+@cache
+def _lucide_body(name: str) -> str:
+    file_stem = _ICON_FILES.get(name, name)
+    raw = (_ICON_DIR / f"{file_stem}.svg").read_text(encoding="utf-8")
+    match = re.search(r"<svg\b[^>]*>(.*?)</svg>", raw, flags=re.DOTALL)
+    if not match:
+        raise ValueError(f"Invalid Lucide SVG: {file_stem}")
+    return re.sub(r"\s+", " ", match.group(1).strip())