vendor: update buildkit to 2f99651

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/go.opentelemetry.io/otel/sdk/internal/sanitize.go

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package internal
+package internal // import "go.opentelemetry.io/otel/sdk/internal"
 
 import (
 	"strings"

vendor/go.opentelemetry.io/otel/sdk/resource/builtin.go

@@ -22,7 +22,7 @@ import (
 
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
-	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+	semconv "go.opentelemetry.io/otel/semconv/v1.7.0"
 )
 
 type (

vendor/go.opentelemetry.io/otel/sdk/resource/env.go

@@ -21,7 +21,7 @@ import (
 	"strings"
 
 	"go.opentelemetry.io/otel/attribute"
-	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+	semconv "go.opentelemetry.io/otel/semconv/v1.7.0"
 )
 
 const (

vendor/go.opentelemetry.io/otel/sdk/resource/os.go

@@ -19,7 +19,7 @@ import (
 	"strings"
 
 	"go.opentelemetry.io/otel/attribute"
-	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+	semconv "go.opentelemetry.io/otel/semconv/v1.7.0"
 )
 
 type osDescriptionProvider func() (string, error)

vendor/go.opentelemetry.io/otel/sdk/resource/os_release_unix.go

@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build aix || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
 // +build aix dragonfly freebsd linux netbsd openbsd solaris zos
 
 package resource // import "go.opentelemetry.io/otel/sdk/resource"

vendor/go.opentelemetry.io/otel/sdk/resource/process.go

@@ -22,7 +22,7 @@ import (
 	"path/filepath"
 	"runtime"
 
-	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+	semconv "go.opentelemetry.io/otel/semconv/v1.7.0"
 )
 
 type pidProvider func() int

vendor/go.opentelemetry.io/otel/sdk/resource/resource.go

@@ -18,6 +18,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"sync"
 
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
@@ -36,26 +37,12 @@ type Resource struct {
 }
 
 var (
-	emptyResource Resource
-
-	defaultResource = func(r *Resource, err error) *Resource {
-		if err != nil {
-			otel.Handle(err)
-		}
-		return r
-	}(
-		Detect(
-			context.Background(),
-			defaultServiceNameDetector{},
-			fromEnv{},
-			telemetrySDK{},
-		),
-	)
+	emptyResource       Resource
+	defaultResource     *Resource
+	defaultResourceOnce sync.Once
 )
 
-var (
-	errMergeConflictSchemaURL = errors.New("cannot merge resource due to conflicting Schema URL")
-)
+var errMergeConflictSchemaURL = errors.New("cannot merge resource due to conflicting Schema URL")
 
 // New returns a Resource combined from the user-provided detectors.
 func New(ctx context.Context, opts ...Option) (*Resource, error) {
@@ -211,6 +198,22 @@ func Empty() *Resource {
 // Default returns an instance of Resource with a default
 // "service.name" and OpenTelemetrySDK attributes.
 func Default() *Resource {
+	defaultResourceOnce.Do(func() {
+		var err error
+		defaultResource, err = Detect(
+			context.Background(),
+			defaultServiceNameDetector{},
+			fromEnv{},
+			telemetrySDK{},
+		)
+		if err != nil {
+			otel.Handle(err)
+		}
+		// If Detect did not return a valid resource, fall back to emptyResource.
+		if defaultResource == nil {
+			defaultResource = &emptyResource
+		}
+	})
 	return defaultResource
 }
 

vendor/go.opentelemetry.io/otel/sdk/trace/batch_span_processor.go

@@ -22,6 +22,8 @@ import (
 	"time"
 
 	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/internal/global"
+	"go.opentelemetry.io/otel/trace"
 )
 
 // Defaults for BatchSpanProcessorOptions.
@@ -153,10 +155,29 @@ func (bsp *batchSpanProcessor) Shutdown(ctx context.Context) error {
 	return err
 }
 
+type forceFlushSpan struct {
+	ReadOnlySpan
+	flushed chan struct{}
+}
+
+func (f forceFlushSpan) SpanContext() trace.SpanContext {
+	return trace.NewSpanContext(trace.SpanContextConfig{TraceFlags: trace.FlagsSampled})
+}
+
 // ForceFlush exports all ended spans that have not yet been exported.
 func (bsp *batchSpanProcessor) ForceFlush(ctx context.Context) error {
 	var err error
 	if bsp.e != nil {
+		flushCh := make(chan struct{})
+		if bsp.enqueueBlockOnQueueFull(ctx, forceFlushSpan{flushed: flushCh}, true) {
+			select {
+			case <-flushCh:
+				// Processed any items in queue prior to ForceFlush being called
+			case <-ctx.Done():
+				return ctx.Err()
+			}
+		}
+
 		wait := make(chan error)
 		go func() {
 			wait <- bsp.exportSpans(ctx)
@@ -204,6 +225,7 @@ func WithBlocking() BatchSpanProcessorOption {
 
 // exportSpans is a subroutine of processing and draining the queue.
 func (bsp *batchSpanProcessor) exportSpans(ctx context.Context) error {
+
 	bsp.timer.Reset(bsp.o.BatchTimeout)
 
 	bsp.batchMutex.Lock()
@@ -216,6 +238,7 @@ func (bsp *batchSpanProcessor) exportSpans(ctx context.Context) error {
 	}
 
 	if l := len(bsp.batch); l > 0 {
+		global.Debug("exporting spans", "count", len(bsp.batch))
 		err := bsp.e.ExportSpans(ctx, bsp.batch)
 
 		// A new batch is always created after exporting, even if the batch failed to be exported.
@@ -248,6 +271,10 @@ func (bsp *batchSpanProcessor) processQueue() {
 				otel.Handle(err)
 			}
 		case sd := <-bsp.queue:
+			if ffs, ok := sd.(forceFlushSpan); ok {
+				close(ffs.flushed)
+				continue
+			}
 			bsp.batchMutex.Lock()
 			bsp.batch = append(bsp.batch, sd)
 			shouldExport := len(bsp.batch) >= bsp.o.MaxExportBatchSize
@@ -296,8 +323,12 @@ func (bsp *batchSpanProcessor) drainQueue() {
 }
 
 func (bsp *batchSpanProcessor) enqueue(sd ReadOnlySpan) {
+	bsp.enqueueBlockOnQueueFull(context.TODO(), sd, bsp.o.BlockOnQueueFull)
+}
+
+func (bsp *batchSpanProcessor) enqueueBlockOnQueueFull(ctx context.Context, sd ReadOnlySpan, block bool) bool {
 	if !sd.SpanContext().IsSampled() {
-		return
+		return false
 	}
 
 	// This ensures the bsp.queue<- below does not panic as the
@@ -317,18 +348,24 @@ func (bsp *batchSpanProcessor) enqueue(sd ReadOnlySpan) {
 
 	select {
 	case <-bsp.stopCh:
-		return
+		return false
 	default:
 	}
 
-	if bsp.o.BlockOnQueueFull {
-		bsp.queue <- sd
-		return
+	if block {
+		select {
+		case bsp.queue <- sd:
+			return true
+		case <-ctx.Done():
+			return false
+		}
 	}
 
 	select {
 	case bsp.queue <- sd:
+		return true
 	default:
 		atomic.AddUint32(&bsp.dropped, 1)
 	}
+	return false
 }

vendor/go.opentelemetry.io/otel/sdk/trace/provider.go

@@ -21,10 +21,9 @@ import (
 	"sync/atomic"
 
 	"go.opentelemetry.io/otel"
-	"go.opentelemetry.io/otel/trace"
-
 	"go.opentelemetry.io/otel/sdk/instrumentation"
 	"go.opentelemetry.io/otel/sdk/resource"
+	"go.opentelemetry.io/otel/trace"
 )
 
 const (

vendor/go.opentelemetry.io/otel/sdk/trace/simple_span_processor.go

@@ -88,10 +88,24 @@ func (ssp *simpleSpanProcessor) Shutdown(ctx context.Context) error {
 
 		go shutdown()
 
+		// Wait for the exporter to shut down or the deadline to expire.
 		select {
 		case err = <-done:
 		case <-ctx.Done():
-			err = ctx.Err()
+			// It is possible for the exporter to have immediately shut down
+			// and the context to be done simultaneously. In that case this
+			// outer select statement will randomly choose a case. This will
+			// result in a different returned error for similar scenarios.
+			// Instead, double check if the exporter shut down at the same
+			// time and return that error if so. This will ensure consistency
+			// as well as ensure the caller knows the exporter shut down
+			// successfully (they can already determine if the deadline is
+			// expired given they passed the context).
+			select {
+			case err = <-done:
+			default:
+				err = ctx.Err()
+			}
 		}
 	})
 	return err

vendor/go.opentelemetry.io/otel/sdk/trace/span.go

@@ -25,12 +25,11 @@ import (
 
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/codes"
-	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
-	"go.opentelemetry.io/otel/trace"
-
 	"go.opentelemetry.io/otel/sdk/instrumentation"
 	"go.opentelemetry.io/otel/sdk/internal"
 	"go.opentelemetry.io/otel/sdk/resource"
+	semconv "go.opentelemetry.io/otel/semconv/v1.7.0"
+	"go.opentelemetry.io/otel/trace"
 )
 
 // ReadOnlySpan allows reading information from the data structure underlying a
@@ -453,7 +452,7 @@ func (s *recordingSpan) Resource() *resource.Resource {
 }
 
 func (s *recordingSpan) addLink(link trace.Link) {
-	if !s.IsRecording() {
+	if !s.IsRecording() || !link.SpanContext.IsValid() {
 		return
 	}
 	s.mu.Lock()

vendor/go.opentelemetry.io/otel/sdk/trace/tracer.go

@@ -18,9 +18,8 @@ import (
 	"context"
 	"time"
 
-	"go.opentelemetry.io/otel/trace"
-
 	"go.opentelemetry.io/otel/sdk/instrumentation"
+	"go.opentelemetry.io/otel/trace"
 )
 
 type tracer struct {