Add delete cache to testcases

judge/utils/problems.py

@@ -146,62 +146,4 @@ def hot_problems(duration, limit):
         )).order_by('-ordering').defer('description')[:limit]
 
         cache.set(cache_key, qs, 900)
-    return qs
-
-
-def get_visible_content(data):
-    data = data or b''
-    data = data.replace(b'\r\n', b'\r').replace(b'\r', b'\n')
-
-    data = data.decode('utf-8')
-
-    if (len(data) > settings.TESTCASE_VISIBLE_LENGTH):
-        data = data[:settings.TESTCASE_VISIBLE_LENGTH]
-        data += '.' * 3
-    return data
-
-
-def get_cachekey_file(file):
-    return file.replace(' ', '===')
-
-def get_problem_case(problem, files):
-    result = {}
-    uncached_files = []
-
-    for file in files:
-        cache_key = 'problem_archive:%s:%s' % (problem.code, get_cachekey_file(file))
-        qs = cache.get(cache_key)
-        if qs is None:
-            uncached_files.append(file)
-        else:
-            result['file'] = qs
-
-    if not uncached_files:
-        return result
-
-    archive_path = os.path.join(settings.DMOJ_PROBLEM_DATA_ROOT,
-                                    str(problem.data_files.zipfile))
-    if not os.path.exists(archive_path):
-        raise Exception(
-            'archive file "%s" does not exist' % archive_path)
-    try:
-        archive = zipfile.ZipFile(archive_path, 'r')
-    except zipfile.BadZipfile:
-        raise Exception('bad archive: "%s"' % archive_path)
-
-    for file in uncached_files:
-        cache_key = 'problem_archive:%s:%s' % (problem.code, get_cachekey_file(file))
-        with archive.open(file) as f:
-            s = f.read(settings.TESTCASE_VISIBLE_LENGTH + 3)
-            # add this so there are no characters left behind (ex, 'á' = 2 utf-8 chars)
-            while True:
-                try:
-                    s.decode('utf-8')
-                    break
-                except UnicodeDecodeError:
-                    s += f.read(1)
-            qs = get_visible_content(s)
-        cache.set(cache_key, qs, 86400)
-        result[file] = qs
-
-    return result
+    return qs