From aa4cbd0a3eba2ed15dbefa99cbc40959ae7f6524 Mon Sep 17 00:00:00 2001
From: xiaoou <xiaoou@pwhealth100.com>
Date: Mon, 13 Jul 2026 11:51:17 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20backup=20before=20selfplay,=20never=20rm?=
 =?UTF-8?q?tree=20=E2=80=94=20crash-safe?=
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rmtree(training_data) → mv to training_data_prev
训练成功后再清理backup, 崩了数据不丢
---
 scripts/training_orchestrator.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/scripts/training_orchestrator.py b/scripts/training_orchestrator.py
index d7b89ecd..f8d831c8 100644
--- a/scripts/training_orchestrator.py
+++ b/scripts/training_orchestrator.py
@@ -34,7 +34,11 @@ def run(cmd, cwd=HJHA_DIR, to=86400):
 def selfplay(games):
     log(f"── 自对弈 {games}局 ──")
     td = os.path.join(HJHA_DIR, 'training_data')
-    if os.path.exists(td): shutil.rmtree(td)
+    # 先备份旧数据, 崩了也不丢
+    if os.path.exists(td):
+        backup = f"{td}_prev"
+        if os.path.exists(backup): shutil.rmtree(backup)
+        shutil.move(td, backup)
     os.makedirs(td)
     
     env = os.environ.copy()
@@ -293,6 +297,9 @@ def main():
         if not ok:
             log("训练/eval失败! 跳过")
             continue
+        # 训练成功, 清理备份
+        backup = os.path.join(HJHA_DIR, 'training_data_prev')
+        if os.path.exists(backup): shutil.rmtree(backup)
         if wr is not None:
             winrate = wr