Files
trivy/internal/operation/operation.go
Teppei Fukuda ac5f313129 feat(db): store metadata as a file (#464)
* refactor: wrap errors

* feat(db): add the metadata file

* test(db): re-generate mocks

* fix(app): read metadata from the file in showVersion

* fix: open the database after downloading it

* fix(operation): use UpdateMetadata

* chore(mod): update dependency

* test(integration): fix tests

* fix(conf): rename TRIVY_NONSSL to TRIVY_NON_SSL
2020-04-15 16:07:42 +03:00

94 lines
2.4 KiB
Go

package operation
import (
"context"
"os"
"github.com/spf13/afero"
"github.com/google/wire"
"golang.org/x/xerrors"
"github.com/aquasecurity/fanal/cache"
"github.com/aquasecurity/trivy/pkg/db"
"github.com/aquasecurity/trivy/pkg/log"
"github.com/aquasecurity/trivy/pkg/utils"
)
var SuperSet = wire.NewSet(
cache.NewFSCache,
wire.Bind(new(cache.LocalImageCache), new(cache.FSCache)),
NewCache,
)
type Cache struct {
client cache.LocalImageCache
}
func NewCache(client cache.LocalImageCache) Cache {
return Cache{client: client}
}
func (c Cache) Reset() (err error) {
if err := c.ClearDB(); err != nil {
return xerrors.Errorf("failed to clear the database: %w", err)
}
if err := c.ClearImages(); err != nil {
return xerrors.Errorf("failed to clear the image cache: %w", err)
}
return nil
}
func (c Cache) ClearDB() (err error) {
log.Logger.Info("Removing DB file...")
if err = os.RemoveAll(utils.CacheDir()); err != nil {
return xerrors.Errorf("failed to remove the directory (%s) : %w", utils.CacheDir(), err)
}
return nil
}
func (c Cache) ClearImages() error {
log.Logger.Info("Removing image caches...")
if err := c.client.Clear(); err != nil {
return xerrors.Errorf("failed to remove the cache: %w", err)
}
return nil
}
func DownloadDB(appVersion, cacheDir string, quiet, light, skipUpdate bool) error {
client := initializeDBClient(cacheDir, quiet)
ctx := context.Background()
needsUpdate, err := client.NeedsUpdate(appVersion, light, skipUpdate)
if err != nil {
return xerrors.Errorf("database error: %w", err)
}
if needsUpdate {
log.Logger.Info("Need to update DB")
log.Logger.Info("Downloading DB...")
if err := client.Download(ctx, cacheDir, light); err != nil {
return xerrors.Errorf("failed to download vulnerability DB: %w", err)
}
if err = client.UpdateMetadata(cacheDir); err != nil {
return xerrors.Errorf("unable to update database metadata: %w", err)
}
}
// for debug
if err := showDBInfo(cacheDir); err != nil {
return xerrors.Errorf("failed to show database info: %w", err)
}
return nil
}
func showDBInfo(cacheDir string) error {
m := db.NewMetadata(afero.NewOsFs(), cacheDir)
metadata, err := m.Get()
if err != nil {
return xerrors.Errorf("something wrong with DB: %w", err)
}
log.Logger.Debugf("DB Schema: %d, Type: %d, UpdatedAt: %s, NextUpdate: %s",
metadata.Version, metadata.Type, metadata.UpdatedAt, metadata.NextUpdate)
return nil
}