chore(cdn): Add check script

Author: timothystewart6

tools/check-images.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+# Check that every image referenced in _posts/ exists in Cloudflare R2.
+# Also reports images in R2 that aren't referenced anywhere (orphans).
+#
+# Usage: ./tools/check-images.sh
+
+set -euo pipefail
+
+BUCKET="techno-tim-images"
+REMOTE="r2"
+POSTS_DIR="_posts"
+TMP_REF=$(mktemp)
+TMP_R2=$(mktemp)
+
+echo "==> Scanning posts for image references..."
+grep -roh '/assets/img/[^"'"'"' )]*' "$POSTS_DIR/" \
+  | sed 's|.*:/assets/|/assets/|' \
+  | sort -u > "$TMP_REF"
+
+echo "==> Fetching R2 file list..."
+rclone ls "$REMOTE:$BUCKET/assets/img/" \
+  | awk '{print "/assets/img/"$2}' \
+  | grep -v '^/assets/img/favicons/' \
+  | sort -u > "$TMP_R2"
+
+REFERENCED=$(wc -l < "$TMP_REF" | tr -d ' ')
+IN_R2=$(wc -l < "$TMP_R2" | tr -d ' ')
+
+echo ""
+echo "  Referenced in posts : $REFERENCED"
+echo "  Files in R2         : $IN_R2"
+echo ""
+
+# Images referenced in posts but missing from R2
+MISSING=$(comm -23 "$TMP_REF" "$TMP_R2")
+MISSING_COUNT=$(echo "$MISSING" | grep -c . || true)
+
+if [ -z "$MISSING" ]; then
+  echo "✅ All referenced images exist in R2."
+else
+  echo "❌ $MISSING_COUNT image(s) referenced in posts but MISSING from R2:"
+  echo "$MISSING" | sed 's/^/   /'
+  echo ""
+  echo "To upload missing images (if you have them locally):"
+  echo "   ./tools/upload-images.sh assets/img/"
+fi
+
+echo ""
+
+# Images in R2 not referenced in any post (orphans)
+ORPHANS=$(comm -13 "$TMP_REF" "$TMP_R2")
+ORPHAN_COUNT=$(echo "$ORPHANS" | grep -c . || true)
+
+if [ -z "$ORPHANS" ]; then
+  echo "✅ No orphaned images in R2."
+else
+  echo "ℹ️  $ORPHAN_COUNT image(s) in R2 not referenced in any post (may be safe to delete):"
+  echo "$ORPHANS" | sed 's/^/   /'
+fi
+
+rm -f "$TMP_REF" "$TMP_R2"