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telemetry.go
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telemetry.go
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package telemetry
import (
"encoding/json"
"fmt"
"io"
"os"
"github.com/segmentio/analytics-go"
)
var (
// Overwrite this function for tests
CreateActiveTelemetry = newSegmentClient
SegmentEndpoint = "http://localhost:33457"
segmentKey = "AbgkrgN4cbRhAVEwlzMkHbwvrXnxHh35"
)
type Approval string
const (
Enabled Approval = "enabled"
Disabled Approval = "disabled"
NoStdin Approval = "disabled_default"
)
type Client interface {
io.Closer
// Send a telemetry event. This method is not to be called directly. Use config.Track instead
Track(event Event) error
}
// A segment event to be sent to the telemetry
// Important: this is not meant to be constructed directly apart in tests
// If you want to create a new event, add its constructor in ./events.go
type Event struct {
Object string `json:"object"`
Action string `json:"action"`
Properties map[string]interface{} `json:"properties"`
}
type User struct {
UniqueID string
UserID string
IsSelfHosted bool
OS string
Version string
TeamName string
}
// Create a telemetry client to be used to send telemetry events
func CreateClient(user User, enabled bool) Client {
if !enabled {
return nullClient{}
}
return CreateActiveTelemetry(user)
}
// Sends the user's approval event
func SendTelemetryApproval(user User, approval Approval) error {
client := CreateActiveTelemetry(user)
defer client.Close()
return client.Track(CreateChangeTelemetryStatusEvent(string(approval), "first-time-prompt", nil))
}
// Null client
// Used when telemetry is disabled
func CreateNullClient() Client {
return nullClient{}
}
type nullClient struct{}
func (cli nullClient) Close() error { return nil }
func (cli nullClient) Track(_ Event) error { return nil }
// Segment client
// Used when telemetry is enabled
// Nil segment logger
type nilSegmentEmptyLogger struct{}
func (nilSegmentEmptyLogger) Logf(format string, args ...interface{}) {}
func (nilSegmentEmptyLogger) Errorf(format string, args ...interface{}) {}
type segmentClient struct {
analyticsClient analytics.Client
user User
}
func newSegmentClient(user User) Client {
cli, err := analytics.NewWithConfig(segmentKey, analytics.Config{
Endpoint: SegmentEndpoint,
Logger: nilSegmentEmptyLogger{},
})
if err != nil {
return CreateNullClient()
}
if len(user.UniqueID) == 0 {
return CreateNullClient()
}
err = cli.Enqueue(
analytics.Identify{
UserId: user.UniqueID,
Traits: analytics.NewTraits().Set("os", user.OS),
},
)
if err != nil {
fmt.Printf("Error while identifying with telemetry: %s\n", err)
}
return &segmentClient{cli, user}
}
func (segment *segmentClient) Track(event Event) error {
if event.Properties == nil {
event.Properties = make(map[string]interface{})
}
if event.Action != "" {
event.Properties["action"] = event.Action
}
if segment.user.UniqueID != "" {
event.Properties["anonymous_id"] = segment.user.UniqueID
}
if segment.user.UserID != "" {
event.Properties["cci_user_id"] = segment.user.UserID
}
event.Properties["is_self_hosted"] = segment.user.IsSelfHosted
if segment.user.OS != "" {
event.Properties["os"] = segment.user.OS
}
if segment.user.Version != "" {
event.Properties["cli_version"] = segment.user.Version
}
if segment.user.TeamName != "" {
event.Properties["team_name"] = segment.user.TeamName
}
return segment.analyticsClient.Enqueue(analytics.Track{
UserId: segment.user.UniqueID,
Event: event.Object,
Properties: event.Properties,
})
}
func (segment *segmentClient) Close() error {
return segment.analyticsClient.Close()
}
// File telemetry
// Used for E2E tests
type fileTelemetry struct {
filePath string
events []Event
}
func CreateFileTelemetry(filePath string) Client {
return &fileTelemetry{filePath, make([]Event, 0)}
}
func (cli *fileTelemetry) Track(event Event) error {
cli.events = append(cli.events, event)
return nil
}
func (cli *fileTelemetry) Close() error {
file, err := os.OpenFile(cli.filePath, os.O_CREATE|os.O_WRONLY, 0666)
if err != nil {
return err
}
content, err := json.Marshal(&cli.events)
if err != nil {
return err
}
if _, err = file.Write(content); err != nil {
return err
}
return file.Close()
}