58 lines
1.6 KiB
Go
58 lines
1.6 KiB
Go
package main
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import (
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"log"
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"os"
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"path/filepath"
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"sync"
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"time"
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"github.com/robfig/cron/v3"
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)
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// -----------------------------------------------------------------------------
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// TTL 清理器
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// -----------------------------------------------------------------------------
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var cleanerOnce sync.Once
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func startCleaner() {
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cleanerOnce.Do(func() {
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if err := os.MkdirAll(*uploadDir, 0o755); err != nil {
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log.Fatalf("create upload dir failed: %v", err)
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}
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c := cron.New()
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_, err := c.AddFunc("@every "+scanEvery.String(), func() {
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now := time.Now()
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removed := 0
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var removedBytes int64
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_ = filepath.Walk(*uploadDir, func(path string, info os.FileInfo, err error) error {
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if err != nil || info.IsDir() {
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return nil
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}
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if now.Sub(info.ModTime()) > *fileTTL {
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if rmErr := os.Remove(path); rmErr != nil {
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log.Printf("[cleaner] remove failed: %s err=%v", path, rmErr)
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} else {
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log.Printf("[cleaner] removed: %s (age=%v, size=%s)", path, now.Sub(info.ModTime()), formatSize(info.Size()))
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removed++
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removedBytes += info.Size()
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}
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}
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return nil
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})
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quotaSub(removedBytes)
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// 漂移修正: 每小时一次 rescan 校正任何来源不明的字节数偏差
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rescanQuota()
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log.Printf("[cleaner] scan done, removed=%d (%s), quota used now=%s",
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removed, formatSize(removedBytes), formatSize(quotaUsedSnapshot()))
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})
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if err != nil {
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log.Fatalf("add cron job failed: %v", err)
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}
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c.Start()
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log.Printf("[cleaner] started, schedule=@every %s dir=%s ttl=%s",
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scanEvery, *uploadDir, *fileTTL)
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})
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}
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