55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
package exporter
|
|
|
|
import (
|
|
"path/filepath"
|
|
"time"
|
|
|
|
"github.com/tkw1536/goprogram/stream"
|
|
)
|
|
|
|
// ShouldPrune determines if a file with the provided modification time should be
|
|
// removed from the export log.
|
|
func (exporter *Exporter) ShouldPrune(modtime time.Time) bool {
|
|
return time.Since(modtime) > time.Duration(exporter.Config.MaxBackupAge)*24*time.Hour
|
|
}
|
|
|
|
// Prune prunes all old exports
|
|
func (exporter *Exporter) PruneExports(io stream.IOStream) error {
|
|
sPath := exporter.ArchivePath()
|
|
|
|
// list all the files
|
|
entries, err := exporter.Still.Environment.ReadDir(sPath)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, entry := range entries {
|
|
// skip directories
|
|
if entry.IsDir() {
|
|
continue
|
|
}
|
|
|
|
// grab info about the file
|
|
info, err := entry.Info()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// check if it should be pruned!
|
|
if !exporter.ShouldPrune(info.ModTime()) {
|
|
continue
|
|
}
|
|
|
|
// assemble path, and then remove the file!
|
|
path := filepath.Join(sPath, entry.Name())
|
|
io.Printf("Removing %s cause it is older than %d days", path, exporter.Config.MaxBackupAge)
|
|
|
|
if err := exporter.Still.Environment.Remove(path); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
// prune the snapshot log!
|
|
_, err = exporter.ExporterLogger.Log()
|
|
return err
|
|
}
|