wisski-cloud-distillery/internal/dis/component/exporter/prune.go
2023-03-13 13:19:32 +01:00

57 lines
1.2 KiB
Go

package exporter
import (
"context"
"fmt"
"io"
"os"
"path/filepath"
"time"
)
// 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) > exporter.Config.MaxBackupAge
}
// Prune prunes all old exports
func (exporter *Exporter) PruneExports(ctx context.Context, progress io.Writer) error {
sPath := exporter.ArchivePath()
// list all the files
entries, err := os.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())
fmt.Fprintf(progress, "Removing %s cause it is older than %d days\n", path, exporter.Config.MaxBackupAge)
if err := os.Remove(path); err != nil {
return err
}
}
// prune the snapshot log!
_, err = exporter.Dependencies.ExporterLogger.Log(ctx)
return err
}