Make the stdout exporter a package

.github/dependabot.yml

@@ -17,6 +17,10 @@ updates:
     directory: "/exporters/otlp" # Location of package manifests
     schedule:
       interval: "daily"
+  - package-ecosystem: "gomod" # See documentation for possible values
+    directory: "/exporters/stdout" # Location of package manifests
+    schedule:
+      interval: "daily"
   - package-ecosystem: "gomod" # See documentation for possible values
     directory: "/exporters/metric/prometheus" # Location of package manifests
     schedule:

api/global/internal/meter_test.go

@@ -15,11 +15,8 @@
 package internal_test
 
 import (
-	"bytes"
 	"context"
 	"errors"
-	"io"
-	"io/ioutil"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -28,7 +25,6 @@ import (
 	"go.opentelemetry.io/otel/api/global/internal"
 	"go.opentelemetry.io/otel/api/kv"
 	"go.opentelemetry.io/otel/api/metric"
-	"go.opentelemetry.io/otel/exporters/stdout"
 	metrictest "go.opentelemetry.io/otel/internal/metric"
 )
 
@@ -229,41 +225,6 @@ func TestUnbind(t *testing.T) {
 	boundM.Unbind()
 }
 
-func TestDefaultSDK(t *testing.T) {
-	internal.ResetForTest()
-
-	ctx := context.Background()
-	meter1 := global.Meter("builtin")
-	labels1 := []kv.KeyValue{kv.String("A", "B")}
-
-	counter := Must(meter1).NewInt64Counter("test.builtin")
-	counter.Add(ctx, 1, labels1...)
-	counter.Add(ctx, 1, labels1...)
-
-	in, out := io.Pipe()
-	pusher, err := stdout.InstallNewPipeline([]stdout.Option{
-		stdout.WithWriter(out),
-		stdout.WithoutTimestamps(),
-	}, nil)
-	if err != nil {
-		panic(err)
-	}
-
-	counter.Add(ctx, 1, labels1...)
-
-	ch := make(chan string)
-	go func() {
-		data, _ := ioutil.ReadAll(in)
-		ch <- string(data)
-	}()
-
-	pusher.Stop()
-	out.Close()
-
-	require.Equal(t, `[{"Name":"test.builtin{instrumentation.name=builtin,A=B}","Sum":1}]
-`, <-ch)
-}
-
 func TestUnbindThenRecordOne(t *testing.T) {
 	internal.ResetForTest()
 
@@ -394,30 +355,3 @@ func TestRecordBatchMock(t *testing.T) {
 		},
 		asStructs(mock.MeasurementBatches))
 }
-
-func TestRecordBatchRealSDK(t *testing.T) {
-	internal.ResetForTest()
-
-	meter := global.MeterProvider().Meter("builtin")
-
-	counter := Must(meter).NewInt64Counter("test.counter")
-
-	meter.RecordBatch(context.Background(), nil, counter.Measurement(1))
-
-	var buf bytes.Buffer
-
-	pusher, err := stdout.InstallNewPipeline([]stdout.Option{
-		stdout.WithWriter(&buf),
-		stdout.WithoutTimestamps(),
-	}, nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-	global.SetMeterProvider(pusher.Provider())
-
-	meter.RecordBatch(context.Background(), nil, counter.Measurement(1))
-	pusher.Stop()
-
-	require.Equal(t, `[{"Name":"test.counter{instrumentation.name=builtin}","Sum":1}]
-`, buf.String())
-}

example/basic/go.mod

@@ -2,6 +2,12 @@ module go.opentelemetry.io/otel/example/basic
 
 go 1.13
 
-replace go.opentelemetry.io/otel => ../..
+replace (
+	go.opentelemetry.io/otel => ../..
+	go.opentelemetry.io/otel/exporters/stdout => ../../exporters/stdout
+)
 
-require go.opentelemetry.io/otel v0.9.0
+require (
+	go.opentelemetry.io/otel v0.9.0
+	go.opentelemetry.io/otel/exporters/stdout v0.9.0
+)

example/grpc/go.mod

@@ -2,11 +2,15 @@ module go.opentelemetry.io/otel/example/grpc
 
 go 1.13
 
-replace go.opentelemetry.io/otel => ../..
+replace (
+	go.opentelemetry.io/otel => ../..
+	go.opentelemetry.io/otel/exporters/stdout => ../../exporters/stdout
+)
 
 require (
 	github.com/golang/protobuf v1.4.2
 	go.opentelemetry.io/otel v0.9.0
+	go.opentelemetry.io/otel/exporters/stdout v0.9.0
 	golang.org/x/net v0.0.0-20190613194153-d28f0bde5980
 	google.golang.org/grpc v1.30.0
 )

example/http/go.mod

@@ -2,6 +2,12 @@ module go.opentelemetry.io/otel/example/http
 
 go 1.13
 
-replace go.opentelemetry.io/otel => ../..
+replace (
+	go.opentelemetry.io/otel => ../..
+	go.opentelemetry.io/otel/exporters/stdout => ../../exporters/stdout
+)
 
-require go.opentelemetry.io/otel v0.9.0
+require (
+	go.opentelemetry.io/otel v0.9.0
+	go.opentelemetry.io/otel/exporters/stdout v0.9.0
+)

example/namedtracer/go.mod

@@ -2,6 +2,12 @@ module go.opentelemetry.io/otel/example/namedtracer
 
 go 1.13
 
-replace go.opentelemetry.io/otel => ../..
+replace (
+	go.opentelemetry.io/otel => ../..
+	go.opentelemetry.io/otel/exporters/stdout => ../../exporters/stdout
+)
 
-require go.opentelemetry.io/otel v0.9.0
+require (
+	go.opentelemetry.io/otel v0.9.0
+	go.opentelemetry.io/otel/exporters/stdout v0.9.0
+)

exporters/stdout/go.mod

@@ -0,0 +1,11 @@
+module go.opentelemetry.io/otel/exporters/stdout
+
+go 1.14
+
+replace go.opentelemetry.io/otel => ../..
+
+require (
+	github.com/stretchr/testify v1.6.1
+	go.opentelemetry.io/otel v0.9.0
+	google.golang.org/grpc v1.30.0
+)

exporters/stdout/go.sum

@@ -0,0 +1,97 @@
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+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

instrumentation/othttp/handler_example_test.go

@@ -25,7 +25,6 @@ import (
 	"go.opentelemetry.io/otel/api/kv"
 
 	"go.opentelemetry.io/otel/api/trace"
-	"go.opentelemetry.io/otel/exporters/stdout"
 	"go.opentelemetry.io/otel/instrumentation/othttp"
 )
 
@@ -44,16 +43,6 @@ func ExampleNewHandler() {
 	a painting
 	*/
 
-	// Write spans to stdout
-	pusher, err := stdout.InstallNewPipeline([]stdout.Option{
-		stdout.WithPrettyPrint(),
-		stdout.WithoutTimestamps(), // This makes the output deterministic
-	}, nil)
-	if err != nil {
-		log.Fatal(err)
-	}
-	defer pusher.Stop()
-
 	figureOutName := func(ctx context.Context, s string) (string, error) {
 		pp := strings.SplitN(s, "/", 2)
 		var err error