Eerste commit voor Helvoirt Gevelreiniging

scripts/img-variants.py

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+# /// script
+# requires-python = ">=3.10"
+# dependencies = ["pillow"]
+# ///
+"""Genereer downscaled WebP-varianten voor responsive srcset.
+Usage: uv run --native-tls scripts/img-variants.py <input.webp> <w1,w2,...> [quality]
+Schrijft <stem>-<w>.webp voor elke breedte kleiner dan het origineel."""
+import os
+import sys
+from PIL import Image
+
+inp = sys.argv[1]
+widths = [int(w) for w in sys.argv[2].split(",")]
+quality = int(sys.argv[3]) if len(sys.argv) > 3 else 80
+
+img = Image.open(inp)
+ow, oh = img.size
+stem, ext = os.path.splitext(inp)
+
+for w in widths:
+    if w >= ow:
+        print(f"skip {w} (>= origineel {ow})")
+        continue
+    h = round(oh * w / ow)
+    resized = img.resize((w, h), Image.LANCZOS)
+    out = f"{stem}-{w}.webp"
+    resized.save(out, "WEBP", quality=quality, method=6)
+    print(f"saved {out} ({w}x{h}, {os.path.getsize(out) // 1024} KB)")