fix anwser token and database issus

dev/gofmt_keep_crlf.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+# dev/gofmt_keep_crlf.py
+#
+# 运行 gofmt -w，但保留文件原始行尾（CRLF / LF），避免 gofmt 把 CRLF 文件整文件
+# 重写成 LF 造成的万行级 diff 污染。
+#
+# 用法：
+#   python dev/gofmt_keep_crlf.py <file1> [file2 ...]
+#   git diff --name-only | grep '\.go$' | xargs python dev/gofmt_keep_crlf.py
+#
+# 实现要点：先把源文件按 LF 写入临时副本交给 gofmt，gofmt 输出也是 LF；
+# 若原文件是 CRLF，再把输出整体换回 CRLF 写回，从而只保留真实的格式化改动。
+import os
+import sys
+import subprocess
+
+GOFMT = r"C:/Program Files/Go/bin/gofmt"
+
+
+def fmt_one(path):
+    with open(path, "rb") as f:
+        data = f.read()
+    crlf = b"\r\n" in data
+
+    tmp = path + ".gofmt.tmp"
+    with open(tmp, "wb") as f:
+        f.write(data.replace(b"\r\n", b"\n"))
+    try:
+        r = subprocess.run([GOFMT, "-w", tmp], capture_output=True)
+        if r.returncode != 0:
+            sys.stderr.write(
+                "gofmt FAILED on %s:\n%s\n" % (path, r.stderr.decode("utf-8", "replace"))
+            )
+            return False
+        with open(tmp, "rb") as f:
+            out = f.read()
+    finally:
+        try:
+            os.remove(tmp)
+        except OSError:
+            pass
+
+    if crlf:
+        out = out.replace(b"\r\n", b"\n").replace(b"\n", b"\r\n")
+    with open(path, "wb") as f:
+        f.write(out)
+    return True
+
+
+def main():
+    files = [a for a in sys.argv[1:] if a.strip()]
+    if not files:
+        sys.stderr.write("usage: gofmt_keep_crlf.py <file> [file ...]\n")
+        return 2
+    ok = True
+    for p in files:
+        if not fmt_one(p):
+            ok = False
+    return 0 if ok else 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())