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package search
import (
"context"
"fmt"
"io"
"net/http"
"os"
"path/filepath"
"time"
"github.com/ponzu-cms/ponzu/system/backup"
)
// Backup creates an archive of a project's search index and writes it
// to the response as a download
func Backup(ctx context.Context, res http.ResponseWriter) error {
ts := time.Now().Unix()
filename := fmt.Sprintf("search-%d.bak.tar.gz", ts)
tmp := os.TempDir()
bk := filepath.Join(tmp, filename)
// create search-{stamp}.bak.tar.gz
f, err := os.Create(bk)
if err != nil {
return err
}
backup.ArchiveFS(ctx, "search", f)
err = f.Close()
if err != nil {
return err
}
// write data to response
data, err := os.Open(bk)
if err != nil {
return err
}
defer data.Close()
defer os.Remove(bk)
disposition := `attachment; filename=%s`
info, err := data.Stat()
if err != nil {
return err
}
res.Header().Set("Content-Type", "application/octet-stream")
res.Header().Set("Content-Disposition", fmt.Sprintf(disposition, ts))
res.Header().Set("Content-Length", fmt.Sprintf("%d", info.Size()))
_, err = io.Copy(res, data)
return err
}
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