v0.2 Preview: Construction Plan.

2026-08-08 21:25:27 +08:00
parent b88d15698a
commit 1f98f7152d
822 changed files with 96959 additions and 8 deletions
@@ -0,0 +1,63 @@
+import re
+
+from django.core.management.base import BaseCommand, CommandError
+from django.db import connection
+
+
+MINIMUM_VERSION = (8, 0, 35)
+
+
+class Command(BaseCommand):
+    help = "检查生产 MySQL 的版本、字符集、引擎、严格模式和事务隔离级别"
+
+    def handle(self, *args, **options):
+        if connection.vendor != "mysql":
+            raise CommandError(f"数据库必须是 MySQL，当前为 {connection.vendor}")
+
+        with connection.cursor() as cursor:
+            cursor.execute(
+                """
+                SELECT VERSION(),
+                       @@character_set_server,
+                       @@collation_server,
+                       @@sql_mode,
+                       @@transaction_isolation,
+                       @@default_storage_engine
+                """
+            )
+            (
+                version_text,
+                charset,
+                collation,
+                sql_mode,
+                isolation,
+                storage_engine,
+            ) = cursor.fetchone()
+
+        match = re.match(r"^(\d+)\.(\d+)\.(\d+)", version_text)
+        if match is None:
+            raise CommandError(f"无法解析 MySQL 版本: {version_text}")
+        version = tuple(int(part) for part in match.groups())
+        if version < MINIMUM_VERSION:
+            minimum = ".".join(str(part) for part in MINIMUM_VERSION)
+            raise CommandError(f"MySQL 版本过低: {version_text}，最低要求 {minimum}")
+        if charset.lower() != "utf8mb4":
+            raise CommandError(f"character_set_server 必须是 utf8mb4，当前为 {charset}")
+        if not collation.lower().startswith("utf8mb4_"):
+            raise CommandError(f"collation_server 必须属于 utf8mb4，当前为 {collation}")
+
+        modes = {mode.strip().upper() for mode in sql_mode.split(",")}
+        if not {"STRICT_TRANS_TABLES", "STRICT_ALL_TABLES"} & modes:
+            raise CommandError(f"MySQL 未启用严格模式: {sql_mode}")
+        if isolation.upper().replace("_", "-") != "READ-COMMITTED":
+            raise CommandError(f"事务隔离级别必须是 READ-COMMITTED，当前为 {isolation}")
+        if storage_engine.lower() != "innodb":
+            raise CommandError(f"默认存储引擎必须是 InnoDB，当前为 {storage_engine}")
+
+        self.stdout.write(
+            self.style.SUCCESS(
+                "MySQL 检查通过: "
+                f"version={version_text}, charset={charset}, "
+                f"collation={collation}, isolation={isolation}, engine={storage_engine}"
+            )
+        )