Make gate scripts handle table-form dependencies and fail closed

Implemented-By: Laguna S 2.1 (OpenCode)

scripts/check-lines.sh

@@ -2,13 +2,21 @@
 # Fails if any *.rs file under ROOT/crates has more than 500 lines.
 # Files under any target/ directory are ignored. Test files count.
 ROOT="${1:-.}"
+max=500
 
-bad=$(find "$ROOT/crates" -type f -name '*.rs' ! -path '*/target/*' \
-    -exec awk 'END { exit !(NR > 500) }' {} \; -print 2>/dev/null)
-if [ -n "$bad" ]; then
-    echo "$bad" | while read -r f; do
-        [ -n "$f" ] && echo "check-lines: $f" >&2
-    done
+# Fail closed: there is nothing to check without a crates directory.
+if [ ! -d "$ROOT/crates" ]; then
+    echo "check-lines: $ROOT/crates is not a directory" >&2
     exit 1
 fi
-exit 0
+
+# -prune stops find descending into target/ trees.
+find "$ROOT/crates" -type d -name target -prune -o -type f -name '*.rs' -print \
+| while read -r f; do
+    n=$(awk 'END { print NR }' "$f")
+    if [ "$n" -gt "$max" ]; then
+        echo "check-lines: $f has $n lines (limit $max)" >&2
+        exit 1
+    fi
+done
+exit $?