replace import with vanity url go.opentelemetry.io. (#54)

rghetia · web-flow · commit eed647d11f57 · 2019-07-15T14:49:21.000-07:00
diff --git a/api/core/key.go b/api/core/key.go
@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"unsafe"
 
-	"github.com/open-telemetry/opentelemetry-go/api/registry"
+	"go.opentelemetry.io/api/registry"
 )
 
 type Key struct {
diff --git a/api/event/event.go b/api/event/event.go
@@ -15,7 +15,7 @@
 package event
 
 import (
-	"github.com/open-telemetry/opentelemetry-go/api/core"
+	"go.opentelemetry.io/api/core"
 )
 
 // Event interface provides methods to retrieve Event properties.
diff --git a/api/key/key.go b/api/key/key.go
@@ -1,8 +1,8 @@
 package key
 
 import (
-	"github.com/open-telemetry/opentelemetry-go/api/core"
-	"github.com/open-telemetry/opentelemetry-go/api/registry"
+	"go.opentelemetry.io/api/core"
+	"go.opentelemetry.io/api/registry"
 )
 
 type AnyValue struct{}
diff --git a/api/metric/api.go b/api/metric/api.go
@@ -17,9 +17,9 @@ package metric
 import (
 	"context"
 
-	"github.com/open-telemetry/opentelemetry-go/api/core"
-	"github.com/open-telemetry/opentelemetry-go/api/registry"
-	"github.com/open-telemetry/opentelemetry-go/api/unit"
+	"go.opentelemetry.io/api/core"
+	"go.opentelemetry.io/api/registry"
+	"go.opentelemetry.io/api/unit"
 )
 
 type MetricType int
diff --git a/api/metric/common.go b/api/metric/common.go
@@ -15,7 +15,7 @@
 package metric
 
 import (
-	"github.com/open-telemetry/opentelemetry-go/api/registry"
+	"go.opentelemetry.io/api/registry"
 )
 
 func registerMetric(name string, mtype MetricType, opts []Option, metric *Handle) {
diff --git a/api/metric/noop_meter.go b/api/metric/noop_meter.go
@@ -3,7 +3,7 @@ package metric
 import (
 	"context"
 
-	"github.com/open-telemetry/opentelemetry-go/api/core"
+	"go.opentelemetry.io/api/core"
 )
 
 type noopMeter struct{}
diff --git a/api/registry/registry.go b/api/registry/registry.go
@@ -15,7 +15,7 @@
 package registry
 
 import (
-	"github.com/open-telemetry/opentelemetry-go/api/unit"
+	"go.opentelemetry.io/api/unit"
 )
 
 type Sequence uint64
diff --git a/api/stats/stats.go b/api/stats/stats.go
@@ -18,8 +18,8 @@ import (
 	"context"
 	"sync/atomic"
 
-	"github.com/open-telemetry/opentelemetry-go/api/core"
-	"github.com/open-telemetry/opentelemetry-go/api/registry"
+	"go.opentelemetry.io/api/core"
+	"go.opentelemetry.io/api/registry"
 )
 
 type MeasureHandle struct {
diff --git a/api/tag/api.go b/api/tag/api.go
@@ -17,7 +17,7 @@ package tag
 import (
 	"context"
 
-	"github.com/open-telemetry/opentelemetry-go/api/core"
+	"go.opentelemetry.io/api/core"
 )
 
 type ctxTagsType struct{}
diff --git a/api/tag/map.go b/api/tag/map.go
@@ -18,7 +18,7 @@ import (
 	"context"
 	"runtime/pprof"
 
-	"github.com/open-telemetry/opentelemetry-go/api/core"
+	"go.opentelemetry.io/api/core"
 )
 
 type tagContent struct {
diff --git a/api/trace/api.go b/api/trace/api.go
@@ -20,9 +20,9 @@ import (
 
 	"google.golang.org/grpc/codes"
 
-	"github.com/open-telemetry/opentelemetry-go/api/core"
-	"github.com/open-telemetry/opentelemetry-go/api/event"
-	"github.com/open-telemetry/opentelemetry-go/api/tag"
+	"go.opentelemetry.io/api/core"
+	"go.opentelemetry.io/api/event"
+	"go.opentelemetry.io/api/tag"
 )
 
 type Tracer interface {
diff --git a/api/trace/noop_span.go b/api/trace/noop_span.go
@@ -19,9 +19,9 @@ import (
 
 	"google.golang.org/grpc/codes"
 
-	"github.com/open-telemetry/opentelemetry-go/api/core"
-	"github.com/open-telemetry/opentelemetry-go/api/event"
-	"github.com/open-telemetry/opentelemetry-go/api/tag"
+	"go.opentelemetry.io/api/core"
+	"go.opentelemetry.io/api/event"
+	"go.opentelemetry.io/api/tag"
 )
 
 type noopSpan struct {
diff --git a/api/trace/noop_trace.go b/api/trace/noop_trace.go
@@ -17,7 +17,7 @@ package trace
 import (
 	"context"
 
-	"github.com/open-telemetry/opentelemetry-go/api/core"
+	"go.opentelemetry.io/api/core"
 )
 
 type noopTracer struct{}
diff --git a/example/basic/main.go b/example/basic/main.go
@@ -17,13 +17,13 @@ package main
 import (
 	"context"
 
-	"github.com/open-telemetry/opentelemetry-go/api/key"
-	"github.com/open-telemetry/opentelemetry-go/api/metric"
-	"github.com/open-telemetry/opentelemetry-go/api/registry"
-	"github.com/open-telemetry/opentelemetry-go/api/stats"
-	"github.com/open-telemetry/opentelemetry-go/api/tag"
-	"github.com/open-telemetry/opentelemetry-go/api/trace"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/sdk/event"
+	"go.opentelemetry.io/api/key"
+	"go.opentelemetry.io/api/metric"
+	"go.opentelemetry.io/api/registry"
+	"go.opentelemetry.io/api/stats"
+	"go.opentelemetry.io/api/tag"
+	"go.opentelemetry.io/api/trace"
+	"go.opentelemetry.io/experimental/streaming/sdk/event"
 )
 
 var (
diff --git a/example/http/client/client.go b/example/http/client/client.go
@@ -22,10 +22,10 @@ import (
 
 	"google.golang.org/grpc/codes"
 
-	"github.com/open-telemetry/opentelemetry-go/api/key"
-	"github.com/open-telemetry/opentelemetry-go/api/tag"
-	"github.com/open-telemetry/opentelemetry-go/api/trace"
-	"github.com/open-telemetry/opentelemetry-go/plugin/httptrace"
+	"go.opentelemetry.io/api/key"
+	"go.opentelemetry.io/api/tag"
+	"go.opentelemetry.io/api/trace"
+	"go.opentelemetry.io/plugin/httptrace"
 )
 
 var (
diff --git a/example/http/server/server.go b/example/http/server/server.go
@@ -18,10 +18,10 @@ import (
 	"io"
 	"net/http"
 
-	"github.com/open-telemetry/opentelemetry-go/api/key"
-	"github.com/open-telemetry/opentelemetry-go/api/tag"
-	"github.com/open-telemetry/opentelemetry-go/api/trace"
-	"github.com/open-telemetry/opentelemetry-go/plugin/httptrace"
+	"go.opentelemetry.io/api/key"
+	"go.opentelemetry.io/api/tag"
+	"go.opentelemetry.io/api/trace"
+	"go.opentelemetry.io/plugin/httptrace"
 )
 
 var (
diff --git a/experimental/streaming/exporter/buffer/buffer.go b/experimental/streaming/exporter/buffer/buffer.go
@@ -18,7 +18,7 @@ import (
 	"sync"
 	"sync/atomic"
 
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
 )
 
 type Buffer struct {
diff --git a/experimental/streaming/exporter/loader/loader.go b/experimental/streaming/exporter/loader/loader.go
@@ -20,7 +20,7 @@ import (
 	"plugin"
 	"time"
 
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
 )
 
 // TODO add buffer support directly, eliminate stdout
diff --git a/experimental/streaming/exporter/observer/observer.go b/experimental/streaming/exporter/observer/observer.go
@@ -22,9 +22,9 @@ import (
 
 	"google.golang.org/grpc/codes"
 
-	"github.com/open-telemetry/opentelemetry-go/api/core"
-	"github.com/open-telemetry/opentelemetry-go/api/stats"
-	"github.com/open-telemetry/opentelemetry-go/api/tag"
+	"go.opentelemetry.io/api/core"
+	"go.opentelemetry.io/api/stats"
+	"go.opentelemetry.io/api/tag"
 )
 
 type EventType int
diff --git a/experimental/streaming/exporter/reader/format/format.go b/experimental/streaming/exporter/reader/format/format.go
@@ -18,10 +18,10 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/open-telemetry/opentelemetry-go/api/core"
-	"github.com/open-telemetry/opentelemetry-go/api/key"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/reader"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/sdk/trace"
+	"go.opentelemetry.io/api/core"
+	"go.opentelemetry.io/api/key"
+	"go.opentelemetry.io/experimental/streaming/exporter/reader"
+	"go.opentelemetry.io/experimental/streaming/sdk/trace"
 )
 
 var (
diff --git a/experimental/streaming/exporter/reader/reader.go b/experimental/streaming/exporter/reader/reader.go
@@ -21,11 +21,11 @@ import (
 
 	"google.golang.org/grpc/codes"
 
-	"github.com/open-telemetry/opentelemetry-go/api/core"
-	"github.com/open-telemetry/opentelemetry-go/api/event"
-	"github.com/open-telemetry/opentelemetry-go/api/stats"
-	"github.com/open-telemetry/opentelemetry-go/api/tag"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/api/core"
+	"go.opentelemetry.io/api/event"
+	"go.opentelemetry.io/api/stats"
+	"go.opentelemetry.io/api/tag"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
 )
 
 type Reader interface {
diff --git a/experimental/streaming/exporter/spandata/format/format.go b/experimental/streaming/exporter/spandata/format/format.go
@@ -17,8 +17,8 @@ package format
 import (
 	"strings"
 
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/reader/format"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/spandata"
+	"go.opentelemetry.io/experimental/streaming/exporter/reader/format"
+	"go.opentelemetry.io/experimental/streaming/exporter/spandata"
 )
 
 func AppendSpan(buf *strings.Builder, data *spandata.Span) {
diff --git a/experimental/streaming/exporter/spandata/spandata.go b/experimental/streaming/exporter/spandata/spandata.go
@@ -15,9 +15,9 @@
 package spandata
 
 import (
-	"github.com/open-telemetry/opentelemetry-go/api/core"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/reader"
+	"go.opentelemetry.io/api/core"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/reader"
 )
 
 type Reader interface {
diff --git a/experimental/streaming/exporter/spanlog/install/package.go b/experimental/streaming/exporter/spanlog/install/package.go
@@ -15,13 +15,13 @@
 package install
 
 import (
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/spanlog"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/spanlog"
 )
 
 // Use this import:
 //
-//   import _ "github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/spanlog/install"
+//   import _ "go.opentelemetry.io/experimental/streaming/exporter/spanlog/install"
 //
 // to include the spanlog exporter by default.
 
diff --git a/experimental/streaming/exporter/spanlog/plugin/package.go b/experimental/streaming/exporter/spanlog/plugin/package.go
@@ -15,8 +15,8 @@
 package main
 
 import (
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/spanlog"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/spanlog"
 )
 
 var (
diff --git a/experimental/streaming/exporter/spanlog/spanlog.go b/experimental/streaming/exporter/spanlog/spanlog.go
@@ -18,10 +18,10 @@ import (
 	"os"
 	"strings"
 
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/buffer"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/spandata"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/spandata/format"
+	"go.opentelemetry.io/experimental/streaming/exporter/buffer"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/spandata"
+	"go.opentelemetry.io/experimental/streaming/exporter/spandata/format"
 )
 
 type spanLog struct{}
diff --git a/experimental/streaming/exporter/stderr/install/package.go b/experimental/streaming/exporter/stderr/install/package.go
@@ -15,13 +15,13 @@
 package install
 
 import (
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/stderr"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/stderr"
 )
 
 // Use this import:
 //
-//   import _ "github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/stderr/install"
+//   import _ "go.opentelemetry.io/experimental/streaming/exporter/stderr/install"
 //
 // to include the stderr exporter by default.
 
diff --git a/experimental/streaming/exporter/stderr/plugin/package.go b/experimental/streaming/exporter/stderr/plugin/package.go
@@ -15,8 +15,8 @@
 package main
 
 import (
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/stderr"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/stderr"
 )
 
 var (
diff --git a/experimental/streaming/exporter/stderr/stderr.go b/experimental/streaming/exporter/stderr/stderr.go
@@ -17,9 +17,9 @@ package stderr
 import (
 	"os"
 
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/reader"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/reader/format"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/reader"
+	"go.opentelemetry.io/experimental/streaming/exporter/reader/format"
 )
 
 type stderrLog struct{}
diff --git a/experimental/streaming/exporter/stdout/install/package.go b/experimental/streaming/exporter/stdout/install/package.go
@@ -15,13 +15,13 @@
 package install
 
 import (
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/stdout"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/stdout"
 )
 
 // Use this import:
 //
-//   import _ "github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/stdout/install"
+//   import _ "go.opentelemetry.io/experimental/streaming/exporter/stdout/install"
 //
 // to include the stderr exporter by default.
 
diff --git a/experimental/streaming/exporter/stdout/plugin/package.go b/experimental/streaming/exporter/stdout/plugin/package.go
@@ -15,8 +15,8 @@
 package main
 
 import (
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/stdout"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/stdout"
 )
 
 var (
diff --git a/experimental/streaming/exporter/stdout/stdout.go b/experimental/streaming/exporter/stdout/stdout.go
@@ -17,9 +17,9 @@ package stdout
 import (
 	"os"
 
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/reader"
-	"github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/reader/format"
+	"go.opentelemetry.io/experimental/streaming/exporter/observer"
+	"go.opentelemetry.io/experimental/streaming/exporter/reader"
+	"go.opentelemetry.io/experimental/streaming/exporter/reader/format"
 )
 
 type stdoutLog struct{}
diff --git a/experimental/streaming/sdk/event/event.go b/experimental/streaming/sdk/event/event.go
diff --git a/experimental/streaming/sdk/trace/span.go b/experimental/streaming/sdk/trace/span.go
diff --git a/experimental/streaming/sdk/trace/trace.go b/experimental/streaming/sdk/trace/trace.go
diff --git a/go.mod b/go.mod
diff --git a/plugin/httptrace/api.go b/plugin/httptrace/api.go
diff --git a/plugin/httptrace/clienttrace.go b/plugin/httptrace/clienttrace.go
diff --git a/plugin/httptrace/httptrace.go b/plugin/httptrace/httptrace.go

Original file line number	Diff line number	Diff line change
`@@ -4,7 +4,7 @@ import (`
`4`	`4`	`"fmt"`
`5`	`5`	`"unsafe"`
`6`	`6`
`7`		`- "github.com/open-telemetry/opentelemetry-go/api/registry"`
	`7`	`+ "go.opentelemetry.io/api/registry"`
`8`	`8`	`)`
`9`	`9`
`10`	`10`	`type Key struct {`
Original file line number	Diff line number	Diff line change
`@@ -15,7 +15,7 @@`
`15`	`15`	`package event`
`16`	`16`
`17`	`17`	`import (`
`18`		`- "github.com/open-telemetry/opentelemetry-go/api/core"`
	`18`	`+ "go.opentelemetry.io/api/core"`
`19`	`19`	`)`
`20`	`20`
`21`	`21`	`// Event interface provides methods to retrieve Event properties.`
Original file line number	Diff line number	Diff line change
`@@ -1,8 +1,8 @@`
`1`	`1`	`package key`
`2`	`2`
`3`	`3`	`import (`
`4`		`- "github.com/open-telemetry/opentelemetry-go/api/core"`
`5`		`- "github.com/open-telemetry/opentelemetry-go/api/registry"`
	`4`	`+ "go.opentelemetry.io/api/core"`
	`5`	`+ "go.opentelemetry.io/api/registry"`
`6`	`6`	`)`
`7`	`7`
`8`	`8`	`type AnyValue struct{}`
Original file line number	Diff line number	Diff line change
`@@ -3,7 +3,7 @@ package metric`
`3`	`3`	`import (`
`4`	`4`	`"context"`
`5`	`5`
`6`		`- "github.com/open-telemetry/opentelemetry-go/api/core"`
	`6`	`+ "go.opentelemetry.io/api/core"`
`7`	`7`	`)`
`8`	`8`
`9`	`9`	`type noopMeter struct{}`
Original file line number	Diff line number	Diff line change
`@@ -18,8 +18,8 @@ import (`
`18`	`18`	`"context"`
`19`	`19`	`"sync/atomic"`
`20`	`20`
`21`		`- "github.com/open-telemetry/opentelemetry-go/api/core"`
`22`		`- "github.com/open-telemetry/opentelemetry-go/api/registry"`
	`21`	`+ "go.opentelemetry.io/api/core"`
	`22`	`+ "go.opentelemetry.io/api/registry"`
`23`	`23`	`)`
`24`	`24`
`25`	`25`	`type MeasureHandle struct {`
Original file line number	Diff line number	Diff line change
`@@ -17,7 +17,7 @@ package tag`
`17`	`17`	`import (`
`18`	`18`	`"context"`
`19`	`19`
`20`		`- "github.com/open-telemetry/opentelemetry-go/api/core"`
	`20`	`+ "go.opentelemetry.io/api/core"`
`21`	`21`	`)`
`22`	`22`
`23`	`23`	`type ctxTagsType struct{}`
Original file line number	Diff line number	Diff line change
`@@ -18,7 +18,7 @@ import (`
`18`	`18`	`"context"`
`19`	`19`	`"runtime/pprof"`
`20`	`20`
`21`		`- "github.com/open-telemetry/opentelemetry-go/api/core"`
	`21`	`+ "go.opentelemetry.io/api/core"`
`22`	`22`	`)`
`23`	`23`
`24`	`24`	`type tagContent struct {`
Original file line number	Diff line number	Diff line change
`@@ -17,7 +17,7 @@ package trace`
`17`	`17`	`import (`
`18`	`18`	`"context"`
`19`	`19`
`20`		`- "github.com/open-telemetry/opentelemetry-go/api/core"`
	`20`	`+ "go.opentelemetry.io/api/core"`
`21`	`21`	`)`
`22`	`22`
`23`	`23`	`type noopTracer struct{}`
Original file line number	Diff line number	Diff line change
`@@ -20,7 +20,7 @@ import (`
`20`	`20`	`"plugin"`
`21`	`21`	`"time"`
`22`	`22`
`23`		`- "github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/observer"`
	`23`	`+ "go.opentelemetry.io/experimental/streaming/exporter/observer"`
`24`	`24`	`)`
`25`	`25`
`26`	`26`	`// TODO add buffer support directly, eliminate stdout`
Original file line number	Diff line number	Diff line change
`@@ -17,8 +17,8 @@ package format`
`17`	`17`	`import (`
`18`	`18`	`"strings"`
`19`	`19`
`20`		`- "github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/reader/format"`
`21`		`- "github.com/open-telemetry/opentelemetry-go/experimental/streaming/exporter/spandata"`
	`20`	`+ "go.opentelemetry.io/experimental/streaming/exporter/reader/format"`
	`21`	`+ "go.opentelemetry.io/experimental/streaming/exporter/spandata"`
`22`	`22`	`)`
`23`	`23`
`24`	`24`	`func AppendSpan(buf strings.Builder, data spandata.Span) {`