Show LOC on concluded rankings

frontend/src/api/api.ts

@@ -35,6 +35,7 @@ export interface LeaderboardDetail {
       score: number;
       user_name: string;
       submission_id: number;
+      line_count?: number;
     }>
   >;
 }
@@ -43,7 +44,6 @@ export interface CodesResponse {
   results: Array<{
     submission_id: number;
     code: string;
-    line_count?: number;
   }>;
 }
 

frontend/src/pages/leaderboard/Leaderboard.tsx

@@ -417,7 +417,6 @@ function LeaderboardWithSidebar() {
     navigationItems,
     navigationIndex,
     codes,
-    lineCounts,
     isOpen,
     isLoadingCodes,
     navigate,
@@ -456,7 +455,6 @@ function LeaderboardWithSidebar() {
         navigationItems={navigationItems}
         navigationIndex={navigationIndex}
         codes={codes}
-        lineCounts={lineCounts}
         isLoadingCodes={isLoadingCodes}
         onClose={close}
         onNavigate={navigate}

frontend/src/pages/leaderboard/components/RankingLists.tsx

@@ -29,6 +29,7 @@ interface RankingItem {
   submission_id: number;
   submission_count?: number;
   submission_time?: string;
+  line_count?: number;
 }
 
 interface RankingsListProps {
@@ -84,6 +85,10 @@ const styles: Record<string, SxProps<Theme>> = {
     fontFamily: "monospace",
     color: "text.secondary",
   },
+  lineCount: {
+    fontFamily: "monospace",
+    color: "text.secondary",
+  },
 };
 
 export default function RankingsList({
@@ -160,6 +165,13 @@ export default function RankingsList({
         }
         const isExpanded = expanded[field] ?? true;
         const visibleItems = isExpanded ? items : items.slice(0, 3);
+        const showLineCount = expired && items.some(
+          (item) => typeof item.line_count === "number",
+        );
+        const scoreSize = isAdmin ? 2 : showLineCount ? 2 : 3;
+        const deltaSize = isAdmin ? 1 : showLineCount ? 2 : 3;
+        const fileSize = 3;
+        const adminSubmissionCountSize = showLineCount ? 1 : 2;
         return (
           <Box key={field}>
             <Box sx={styles.header}>
@@ -189,18 +201,18 @@ export default function RankingsList({
                       {item.user_name} {getMedalIcon(item.rank)}
                     </Typography>
                   </Grid>
-                  <Grid size={isAdmin ? 2 : 3}>
+                  <Grid size={scoreSize}>
                     <Typography sx={styles.score}>
                       {formatMicroseconds(item.score)}
                     </Typography>
                   </Grid>
-                  <Grid size={isAdmin ? 1 : 3}>
+                  <Grid size={deltaSize}>
                     <Typography sx={styles.delta}>
                       {item.prev_score > 0 &&
                         `+${formatMicroseconds(item.prev_score)}`}
                     </Typography>
                   </Grid>
-                  <Grid size={isAdmin ? 2 : 3}>
+                  <Grid size={isAdmin ? 2 : fileSize}>
                     <Typography
                       sx={{
                         overflow: "hidden",
@@ -234,8 +246,17 @@ export default function RankingsList({
                       )}
                     </Typography>
                   </Grid>
+                  {showLineCount && (
+                    <Grid size={isAdmin ? 1 : 2}>
+                      <Typography sx={styles.lineCount}>
+                        {typeof item.line_count === "number"
+                          ? `LOC: ${item.line_count.toLocaleString()}`
+                          : ""}
+                      </Typography>
+                    </Grid>
+                  )}
                   {isAdmin && (
-                    <Grid size={2}>
+                    <Grid size={adminSubmissionCountSize}>
                       <Typography sx={styles.submissionId}>
                         Subs: {item.submission_count}
                       </Typography>

frontend/src/pages/leaderboard/components/SubmissionCodeSidebar.tsx

@@ -22,7 +22,6 @@ interface SubmissionCodeSidebarProps {
   navigationItems: NavigationItem[];
   navigationIndex: number;
   codes: Map<number, string>;
-  lineCounts?: Map<number, number>;
   isLoadingCodes?: boolean;
   onClose: () => void;
   onNavigate: (newIndex: number, item: NavigationItem) => void;
@@ -35,7 +34,6 @@ export default function SubmissionCodeSidebar({
   navigationItems,
   navigationIndex,
   codes,
-  lineCounts,
   isLoadingCodes = false,
   onClose,
   onNavigate,
@@ -93,9 +91,6 @@ export default function SubmissionCodeSidebar({
   }, [onWidthChange]);
 
   const drawerWidth = isMobile ? "100vw" : width;
-  const lineCount = selectedSubmission
-    ? lineCounts?.get(selectedSubmission.submissionId)
-    : undefined;
 
   return (
     <Drawer
@@ -199,8 +194,7 @@ export default function SubmissionCodeSidebar({
             {/* Metadata */}
             {(selectedSubmission.timestamp ||
               selectedSubmission.originalTimestamp ||
-              selectedSubmission.score !== undefined ||
-              lineCount !== undefined) && (
+              selectedSubmission.score !== undefined) && (
               <Box
                 sx={{
                   px: 2,
@@ -262,20 +256,6 @@ export default function SubmissionCodeSidebar({
                       </Typography>
                     </Box>
                   )}
-                  {lineCount !== undefined && (
-                    <Box>
-                      <Typography
-                        variant="caption"
-                        color="text.secondary"
-                        display="block"
-                      >
-                        LOC
-                      </Typography>
-                      <Typography variant="body2" sx={{ fontFamily: "monospace" }}>
-                        {lineCount.toLocaleString()}
-                      </Typography>
-                    </Box>
-                  )}
                 </Box>
                 {selectedSubmission.fileName && (
                   <Typography

frontend/src/pages/leaderboard/components/SubmissionSidebarContext.tsx

@@ -18,7 +18,6 @@ interface SubmissionSidebarStateType {
   navigationItems: NavigationItem[];
   navigationIndex: number;
   codes: Map<number, string>;
-  lineCounts: Map<number, number>;
   isOpen: boolean;
   isLoadingCodes: boolean;
   navigate: (newIndex: number, item: NavigationItem) => void;
@@ -41,7 +40,6 @@ export function SubmissionSidebarProvider({
   const [navigationItems, setNavigationItems] = useState<NavigationItem[]>([]);
   const [navigationIndex, setNavigationIndex] = useState(0);
   const [codes, setCodes] = useState<Map<number, string>>(new Map());
-  const [lineCounts, setLineCounts] = useState<Map<number, number>>(new Map());
   const [isLoadingCodes, setIsLoadingCodes] = useState(false);
   const codesRef = useRef(codes);
   codesRef.current = codes;
@@ -74,15 +72,6 @@ export function SubmissionSidebarProvider({
               }
               return next;
             });
-            setLineCounts((prev) => {
-              const next = new Map(prev);
-              for (const item of response?.results ?? []) {
-                if (typeof item.line_count === "number") {
-                  next.set(item.submission_id, item.line_count);
-                }
-              }
-              return next;
-            });
           })
           .catch((err) => {
             console.warn("[SubmissionSidebar] Failed to fetch codes:", err);
@@ -124,7 +113,6 @@ export function SubmissionSidebarProvider({
           navigationItems,
           navigationIndex,
           codes,
-          lineCounts,
           isOpen: !!selectedSubmission,
           isLoadingCodes,
           navigate,

kernelboard/api/leaderboard.py

@@ -141,7 +141,8 @@ def _get_query():
                     ORDER BY CASE WHEN lang = 'Python' THEN 0 ELSE 1 END
                     LIMIT 1
                 ) AS starter,
-                task->'benchmarks' AS benchmarks
+                task->'benchmarks' AS benchmarks,
+                deadline < NOW() AS show_solution_code_metadata
             FROM leaderboard.leaderboard
             WHERE id = %(leaderboard_id)s
         ),
@@ -179,11 +180,25 @@ def _get_query():
                 s.file_name AS file_name,
                 r.submission_id AS submission_id,
                 COALESCE(sc.submission_count, 0) AS submission_count,
+                CASE
+                    WHEN cf.code IS NULL THEN NULL
+                    WHEN cf.code = '' THEN 0
+                    ELSE array_length(
+                        regexp_split_to_array(
+                            regexp_replace(cf.code, E'(\\r\\n|\\r|\\n)$', ''),
+                            E'\\r\\n|\\r|\\n'
+                        ),
+                        1
+                    )
+                END AS line_count,
                 RANK() OVER (PARTITION BY r.runner, u.id ORDER BY r.score ASC) AS rank
             FROM leaderboard.runs r
                 JOIN leaderboard.submission s ON r.submission_id = s.id
                 LEFT JOIN leaderboard.user_info u ON s.user_id = u.id
                 LEFT JOIN submission_counts sc ON s.user_id = sc.user_id AND r.runner = sc.runner
+                LEFT JOIN leaderboard.code_files cf
+                    ON cf.id = s.code_id
+                    AND (SELECT show_solution_code_metadata FROM leaderboard_info)
             WHERE NOT r.secret
                 AND r.score IS NOT NULL
                 AND r.passed
@@ -220,6 +235,7 @@ def _get_query():
         SELECT jsonb_build_object(
             'rankings', (SELECT jsonb_object_agg(g.gpu_type, (
                 SELECT jsonb_agg(
+                    (
                     jsonb_build_object(
                         'user_name', r.user_name,
                         'score', r.score,
@@ -228,6 +244,12 @@ def _get_query():
                         'submission_count', r.submission_count,
                         'submission_time', r.submission_time
                     )
+                    ||
+                    CASE
+                        WHEN r.line_count IS NULL THEN '{}'::jsonb
+                        ELSE jsonb_build_object('line_count', r.line_count)
+                    END
+                    )
                     ORDER BY r.score ASC
                 )
                 FROM top_runs r WHERE r.runner = g.gpu_type))),

kernelboard/api/submission.py

@@ -35,10 +35,6 @@
 WEB_AUTH_HEADER = "X-Web-Auth-Id"
 MAX_CONTENT_LENGTH = 1 * 1024 * 1024  # 1MB max file size
 
-# This blocks the leaderboard to show all the ranking codes when the leaderboard is ended
-BLOCKED_CODE_LEADERBOARD_LIST: list[str] = ["598"]  # leaderboard id to block show
-
-
 USE_MOCK_SUBMISSION: bool = os.environ.get(
     "USE_MOCK_SUBMISSION", ""
 ).lower() == "true"
@@ -184,22 +180,15 @@ def list_codes_route():
         )
 
     try:
-        # if leaderboard is allowed, allow all users to see the leaderboard codes
         is_ended = is_leaderboard_ended(leaderboard_id)
-        is_allowed = str(leaderboard_id) not in BLOCKED_CODE_LEADERBOARD_LIST
         logger.info("[list_codes] leaderboard is ended: %s", is_ended)
-        logger.info("[list_codes] leaderboard is allowed: %s", is_allowed)
 
-        # if leaderboard is ended and allowed, allow all users to see the leaderboard codes
-        if is_ended and is_allowed:
+        # if leaderboard is ended, allow all users to see the leaderboard codes
+        if is_ended:
             logger.info(
-                "[list_codes] leaderboard is allowed, allow all users to see the leaderboard codes"
-            )
-            results = list_codes(
-                leaderboard_id,
-                submission_ids,
-                include_line_count=True,
+                "[list_codes] leaderboard is ended, allow all users to see the leaderboard codes"
             )
+            results = list_codes(leaderboard_id, submission_ids)
             return http_success(
                 data={"results": results},
             )
@@ -299,35 +288,24 @@ def list_submissions():
 def list_codes(
     leaderboard_id: int,
     submission_ids: List[int],
-    *,
-    include_line_count: bool = False,
-) -> List[dict[str, Any]]:
+) -> Tuple[List[dict[str, Any]], str]:
     conn = get_db_connection()
     with conn.cursor() as cur:
         sql, params = _query_list_codes(leaderboard_id, submission_ids)
         cur.execute(sql, params)
         rows = cur.fetchall()
-        items = []
-        for r in rows:
-            code = decodeCodeText(r[3])
-            item = {
+        items = [
+            {
                 "submission_id": r[0],
                 "leaderboard_id": r[1],
                 "code_id": r[2],
-                "code": code,
+                "code": decodeCodeText(r[3]),
             }
-            if include_line_count:
-                item["line_count"] = count_lines_of_code(code)
-            items.append(item)
+            for r in rows
+        ]
     return items
 
 
-def count_lines_of_code(code_text: str) -> int:
-    if not code_text:
-        return 0
-    return len(code_text.splitlines())
-
-
 def decodeCodeText(code_text):
     if isinstance(code_text, memoryview):
         return code_text.tobytes().decode("utf-8")