package testutils // import "github.com/docker/docker/daemon/events/testutils" import ( "fmt" "regexp" "strings" "time" "github.com/docker/docker/api/types/events" timetypes "github.com/docker/docker/api/types/time" ) var ( reTimestamp = `(?P\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}.\d{9}(:?(:?(:?-|\+)\d{2}:\d{2})|Z))` reEventType = `(?P\w+)` reAction = `(?P\w+)` reID = `(?P[^\s]+)` reAttributes = `(\s\((?P[^\)]+)\))?` reString = fmt.Sprintf(`\A%s\s%s\s%s\s%s%s\z`, reTimestamp, reEventType, reAction, reID, reAttributes) // eventCliRegexp is a regular expression that matches all possible event outputs in the cli eventCliRegexp = regexp.MustCompile(reString) ) // ScanMap turns an event string like the default ones formatted in the cli output // and turns it into map. func ScanMap(text string) map[string]string { matches := eventCliRegexp.FindAllStringSubmatch(text, -1) md := map[string]string{} if len(matches) == 0 { return md } names := eventCliRegexp.SubexpNames() for i, n := range matches[0] { md[names[i]] = n } return md } // Scan turns an event string like the default ones formatted in the cli output // and turns it into an event message. func Scan(text string) (*events.Message, error) { md := ScanMap(text) if len(md) == 0 { return nil, fmt.Errorf("text is not an event: %s", text) } f, err := timetypes.GetTimestamp(md["timestamp"], time.Now()) if err != nil { return nil, err } t, tn, err := timetypes.ParseTimestamps(f, -1) if err != nil { return nil, err } attrs := make(map[string]string) for _, a := range strings.SplitN(md["attributes"], ", ", -1) { kv := strings.SplitN(a, "=", 2) attrs[kv[0]] = kv[1] } tu := time.Unix(t, tn) return &events.Message{ Time: t, TimeNano: tu.UnixNano(), Type: md["eventType"], Action: md["action"], Actor: events.Actor{ ID: md["id"], Attributes: attrs, }, }, nil }