restructured the project to comply community guideline, for others check release note

internal/watcher/events/events.go

@@ -0,0 +1,78 @@
+package events
+
+import (
+	"fmt"
+
+	dockerEvents "github.com/docker/docker/api/types/events"
+)
+
+type (
+	Event struct {
+		Type            EventType
+		ActorName       string            // docker: container name, file: relative file path
+		ActorID         string            // docker: container id, file: empty
+		ActorAttributes map[string]string // docker: container labels, file: empty
+		Action          Action
+	}
+	Action    uint16
+	EventType string
+)
+
+const (
+	ActionFileWritten Action = (1 << iota)
+	ActionFileCreated
+	ActionFileDeleted
+	ActionFileRenamed
+
+	ActionContainerCreate
+	ActionContainerStart
+	ActionContainerUnpause
+
+	ActionContainerKill
+	ActionContainerStop
+	ActionContainerPause
+	ActionContainerDie
+
+	actionContainerWakeMask  = ActionContainerCreate | ActionContainerStart | ActionContainerUnpause
+	actionContainerSleepMask = ActionContainerKill | ActionContainerStop | ActionContainerPause | ActionContainerDie
+)
+
+const (
+	EventTypeDocker EventType = "docker"
+	EventTypeFile   EventType = "file"
+)
+
+var DockerEventMap = map[dockerEvents.Action]Action{
+	dockerEvents.ActionCreate:  ActionContainerCreate,
+	dockerEvents.ActionStart:   ActionContainerStart,
+	dockerEvents.ActionUnPause: ActionContainerUnpause,
+
+	dockerEvents.ActionKill:  ActionContainerKill,
+	dockerEvents.ActionStop:  ActionContainerStop,
+	dockerEvents.ActionPause: ActionContainerPause,
+	dockerEvents.ActionDie:   ActionContainerDie,
+}
+
+var dockerActionNameMap = func() (m map[Action]string) {
+	m = make(map[Action]string, len(DockerEventMap))
+	for k, v := range DockerEventMap {
+		m[v] = string(k)
+	}
+	return
+}()
+
+func (e Event) String() string {
+	return fmt.Sprintf("%s %s", e.ActorName, e.Action)
+}
+
+func (a Action) String() string {
+	return dockerActionNameMap[a]
+}
+
+func (a Action) IsContainerWake() bool {
+	return a&actionContainerWakeMask != 0
+}
+
+func (a Action) IsContainerSleep() bool {
+	return a&actionContainerSleepMask != 0
+}