major: remove slack context

cmd/DigitalOceanSnapshotter/main.go

@@ -11,14 +11,12 @@ import (
 
 	"github.com/digitalocean/godo"
 	log "github.com/sirupsen/logrus"
-	"github.com/slack-go/slack"
 )
 
 const createdAtFormat = "2006-01-02T15:04:05Z"
 
 type snapshotterContext struct {
 	DoContext *DigitalOceanContext
-	SlackContext *SlackContext
 }
 
 func initLogging() {
@@ -36,19 +34,19 @@ func main() {
 
 	DOToken, present := os.LookupEnv("DO_TOKEN")
 
-	if present == false {
+	if !present {
 		log.Fatal("Missing enviroment variable \"DO_TOKEN\"")
 	}
 
 	volumesEnv, present := os.LookupEnv("DO_VOLUMES")
 
-	if present == false {
+	if !present {
 		log.Fatal("Missing enviroment variable \"DO_VOLUMES\"")
 	}
 
 	snapshotCountEnv, present := os.LookupEnv("DO_SNAPSHOT_COUNT")
 
-	if present == false {
+	if !present {
 		log.Fatal("Missing enviroment variable \"DO_SNAPSHOT_COUNT\"")
 	}
 
@@ -58,29 +56,11 @@ func main() {
 		log.Fatal("Enviroment variable \"DO_SNAPSHOT_COUNT\" is not an integer")
 	}
 
-	slackEnv := os.Getenv("SLACK_TOKEN")
-
-	var slackContext *SlackContext = nil
-
-	if slackEnv != "" {
-		channelID, present := os.LookupEnv("SLACK_CHANNEL_ID")
-
-		if present == false {
-			log.Fatal("Missing enviroment variable \"SLACK_CHANNEL_ID\"")
-		}
-
-		slackContext = &SlackContext{
-			client:    slack.New(slackEnv),
-			channelID: channelID,
-		}
-	}
-
 	ctx := snapshotterContext{
 		DoContext: &DigitalOceanContext{
 			client: godo.NewFromToken(DOToken),
 			ctx:    context.TODO(),
 		},
-		SlackContext: slackContext,
 	}
 
 	volumeIDs := strings.Split(volumesEnv, ",")
@@ -95,6 +75,7 @@ func main() {
 			VolumeID: volume.ID,
 			Name:     time.Now().Format("2006-01-02T15:04:05"),
 		})
+
 		if err != nil {
 			handleError(ctx, err, true)
 		}
@@ -103,6 +84,10 @@ func main() {
 
 		snapshots, _, err := ctx.DoContext.ListSnapshots(volume.ID, nil)
 
+		if err != nil {
+			handleError(ctx, err, true)
+		}
+
 		snapshotLength := len(snapshots)
 
 		if snapshotLength > snapshotCount {
@@ -135,24 +120,11 @@ func main() {
 		}
 	}
 
-	if ctx.SlackContext != nil {
-		err = ctx.SlackContext.SendEvent(fmt.Sprintf("Successfully created Backup for %d Volumes", len(volumeIDs)), log.InfoLevel)
-		if err != nil {
-			handleError(ctx, err, false)
-		}
-	}
 }
 
 func handleError(ctx snapshotterContext, err error, fatal bool) {
 	errString := err.Error()
 
-	if ctx.SlackContext != nil {
-		err = ctx.SlackContext.SendEvent(errString, log.ErrorLevel)
-		if err != nil {
-			log.Error(fmt.Sprintf("Error while trying to send error to Slack: %s", err.Error()))
-		}
-	}
-
 	if fatal {
 		log.Fatal(errString)
 	}

cmd/DigitalOceanSnapshotter/outputSource.go

@@ -1,30 +0,0 @@
-package main
-
-import (
-	log "github.com/sirupsen/logrus"
-	"github.com/slack-go/slack"
-)
-
-// OutputSource is an abstraction for outputting specific events to other services (e.g. Discord, Slack or Whatsapp)
-type OutputSource interface {
-	SendEvent(string, log.Level) error
-}
-
-// SendEvent forwards event to Slack
-func (s SlackContext) SendEvent(content string, level log.Level) error {
-
-	color := "#00FF00"
-
-	if level == log.ErrorLevel {
-		color = "#FF0000"
-	}
-
-	return s.SendMessageWithEmbed(slack.Attachment{
-		Color:      color,
-		AuthorName: "DigitalOceanSnapshotter",
-		AuthorIcon: "https://cdn.top.gg/icons/DO_Logo_icon_blue.png",
-		Text:       content,
-		Title:      "DigitalOceanSnapshotter",
-		TitleLink:  "https://github.com/top-gg/DigitalOceanSnapshotter",
-	})
-}

cmd/DigitalOceanSnapshotter/slackContext.go

@@ -1,21 +0,0 @@
-package main
-
-import "github.com/slack-go/slack"
-
-// SlackContext is an helper struct to acess slack actions
-type SlackContext struct {
-	client    *slack.Client
-	channelID string
-}
-
-// SendMessageWithContent sends a message with content to the pre defined channel
-func (s SlackContext) SendMessageWithContent(content string) error {
-	_, _, _, err := s.client.SendMessage(s.channelID, slack.MsgOptionText(content, true))
-	return err
-}
-
-// SendMessageWithEmbed sends a message with a Rich Embed to the pre defined channel
-func (s SlackContext) SendMessageWithEmbed(attachment slack.Attachment) error {
-	_, _, _, err := s.client.SendMessage(s.channelID, slack.MsgOptionAttachments(attachment))
-	return err
-}

go.mod

@@ -5,5 +5,4 @@ go 1.15
 require (
 	github.com/digitalocean/godo v1.57.0
 	github.com/sirupsen/logrus v1.7.0
-	github.com/slack-go/slack v0.8.0
 )

go.sum

@@ -1,28 +1,19 @@
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/digitalocean/godo v1.57.0 h1:uCpe0sRIZ/sJWxWDsJyBPBjUfSvxop+WHkHiSf+tjjM=
 github.com/digitalocean/godo v1.57.0/go.mod h1:p7dOjjtSBqCTUksqtA5Fd3uaKs9kyTq2xcz76ulEJRU=
-github.com/go-test/deep v1.0.4 h1:u2CU3YKy9I2pmu9pX0eq50wCgjfGIt539SqR7FbHiho=
-github.com/go-test/deep v1.0.4/go.mod h1:wGDj63lr65AM2AQyKZd/NYHGb0R+1RLqB8NKt3aSFNA=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.5 h1:F768QJ1E9tib+q5Sc8MkdJi1RxLTbRcTf8LJV56aRls=
 github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
 github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
 github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
-github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
-github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
-github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=
-github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/sirupsen/logrus v1.7.0 h1:ShrD1U9pZB12TX0cVy0DtePoCH97K8EtX+mg7ZARUtM=
 github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
-github.com/slack-go/slack v0.8.0 h1:ANyLY5KHLV+MxLJDQum2IuHTLwbCbDtaWY405X1EU9U=
-github.com/slack-go/slack v0.8.0/go.mod h1:FGqNzJBmxIsZURAxh2a8D21AnOVvvXZvGligs4npPUM=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=