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fix(log): prevent usize underflow in KeepSome rotation strategy
KeepSome(n) internally computes n-2, so n=1 causes underflow. Use KeepSome(2) as the minimum safe value.
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@@ -292,8 +292,10 @@ pub fn run() {
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file_name: Some("cc-switch".into()),
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}),
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])
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// 单文件模式:启动时删除旧文件,达到大小时轮转并保留 1 个
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.rotation_strategy(RotationStrategy::KeepSome(1))
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// 单文件模式:启动时删除旧文件,达到大小时轮转
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// 注意:KeepSome(n) 内部会做 n-2 运算,n=1 会导致 usize 下溢
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// KeepSome(2) 是最小安全值,表示不保留轮转文件
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.rotation_strategy(RotationStrategy::KeepSome(2))
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// 单文件大小限制 1GB
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.max_file_size(1024 * 1024 * 1024)
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.timezone_strategy(TimezoneStrategy::UseLocal)
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