52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
package wisski
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import (
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"os"
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"path/filepath"
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"time"
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"github.com/tkw1536/goprogram/stream"
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)
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// ShouldPrune determines if a file with the provided modtime
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func (dis *Distillery) ShouldPrune(modtime time.Time) bool {
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return time.Since(modtime) > time.Duration(dis.Config.MaxBackupAge)*24*time.Hour
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}
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// PruneBackups prunes all backups older than the maximum backup age
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func (dis *Distillery) PruneBackups(io stream.IOStream) error {
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sPath := dis.SnapshotsArchivePath()
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// list all the files
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entries, err := os.ReadDir(sPath)
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if err != nil {
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return err
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}
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for _, entry := range entries {
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// skip directories
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if entry.IsDir() {
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continue
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}
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// grab info about the file
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info, err := entry.Info()
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if err != nil {
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return err
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}
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// check if it should be pruned!
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if !dis.ShouldPrune(info.ModTime()) {
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continue
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}
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// assemble path, and then remove the file!
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path := filepath.Join(sPath, entry.Name())
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io.Printf("Removing %s cause it is older than %d days", path, dis.Config.MaxBackupAge)
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if err := os.Remove(path); err != nil {
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return err
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}
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}
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return nil
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}
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