Optimize some wrong usage and spelling

Signed-off-by: wgliang <liangcszzu@163.com>

api/types/client.go

@@ -181,7 +181,7 @@ type ImageBuildOptions struct {
 	SessionID   string
 
 	// TODO @jhowardmsft LCOW Support: This will require extending to include
-	// `Platform string`, but is ommited for now as it's hard-coded temporarily
+	// `Platform string`, but is omitted for now as it's hard-coded temporarily
 	// to avoid API changes.
 }
 

daemon/attach.go

@@ -168,7 +168,7 @@ func (daemon *Daemon) containerAttach(c *container.Container, cfg *stream.Attach
 		// Wait for the container to stop before returning.
 		waitChan := c.Wait(context.Background(), container.WaitConditionNotRunning)
 		defer func() {
-			_ = <-waitChan // Ignore returned exit code.
+			<-waitChan // Ignore returned exit code.
 		}()
 	}
 

daemon/daemon.go

@@ -860,7 +860,7 @@ func (daemon *Daemon) shutdownContainer(c *container.Container) error {
 
 	// Wait without timeout for the container to exit.
 	// Ignore the result.
-	_ = <-c.Wait(context.Background(), container.WaitConditionNotRunning)
+	<-c.Wait(context.Background(), container.WaitConditionNotRunning)
 	return nil
 }
 

daemon/graphdriver/graphtest/testutil.go

@@ -61,7 +61,7 @@ func checkFile(drv graphdriver.Driver, layer, filename string, content []byte) e
 		return err
 	}
 
-	if bytes.Compare(fileContent, content) != 0 {
+	if !bytes.Equal(fileContent, content) {
 		return fmt.Errorf("mismatched file content %v, expecting %v", fileContent, content)
 	}
 
@@ -211,7 +211,7 @@ func checkManyFiles(drv graphdriver.Driver, layer string, count int, seed int64)
 
 			content := randomContent(64, seed+int64(i+j))
 
-			if bytes.Compare(fileContent, content) != 0 {
+			if !bytes.Equal(fileContent, content) {
 				return fmt.Errorf("mismatched file content %v, expecting %v", fileContent, content)
 			}
 		}
@@ -300,7 +300,7 @@ func checkManyLayers(drv graphdriver.Driver, layer string, count int) error {
 		return err
 	}
 
-	if bytes.Compare(layerIDBytes, []byte(layer)) != 0 {
+	if !bytes.Equal(layerIDBytes, []byte(layer)) {
 		return fmt.Errorf("mismatched file content %v, expecting %v", layerIDBytes, []byte(layer))
 	}
 
@@ -311,7 +311,7 @@ func checkManyLayers(drv graphdriver.Driver, layer string, count int) error {
 		if err != nil {
 			return err
 		}
-		if bytes.Compare(thisLayerIDBytes, layerIDBytes) != 0 {
+		if !bytes.Equal(thisLayerIDBytes, layerIDBytes) {
 			return fmt.Errorf("mismatched file content %v, expecting %v", thisLayerIDBytes, layerIDBytes)
 		}
 		layerIDBytes, err = ioutil.ReadFile(path.Join(layerDir, "parent-id"))

daemon/graphdriver/lcow/lcow.go

@@ -23,33 +23,33 @@
 //
 //   * lcow.sandboxsize - Specifies a custom sandbox size in GB for starting a container
 //        -- Possible values:      >= default sandbox size (opengcs defined, currently 20)
-//        -- Default if ommitted:  20
+//        -- Default if omitted:  20
 //
 // The following options are read by opengcs:
 //
 //   * lcow.kirdpath - Specifies a custom path to a kernel/initrd pair
 //        -- Possible values:      Any local path that is not a mapped drive
-//        -- Default if ommitted:  %ProgramFiles%\Linux Containers
+//        -- Default if omitted:  %ProgramFiles%\Linux Containers
 //
 //   * lcow.kernel - Specifies a custom kernel file located in the `lcow.kirdpath` path
 //        -- Possible values:      Any valid filename
-//        -- Default if ommitted:  bootx64.efi
+//        -- Default if omitted:  bootx64.efi
 //
 //   * lcow.initrd - Specifies a custom initrd file located in the `lcow.kirdpath` path
 //        -- Possible values:      Any valid filename
-//        -- Default if ommitted:  initrd.img
+//        -- Default if omitted:  initrd.img
 //
 //   * lcow.bootparameters - Specifies additional boot parameters for booting in kernel+initrd mode
 //        -- Possible values:      Any valid linux kernel boot options
-//        -- Default if ommitted:  <nil>
+//        -- Default if omitted:  <nil>
 //
 //   * lcow.vhdx - Specifies a custom vhdx file to boot (instead of a kernel+initrd)
 //        -- Possible values:      Any valid filename
-//        -- Default if ommitted:  uvm.vhdx under `lcow.kirdpath`
+//        -- Default if omitted:  uvm.vhdx under `lcow.kirdpath`
 //
 //   * lcow.timeout - Specifies a timeout for utility VM operations in seconds
 //        -- Possible values:      >=0
-//        -- Default if ommitted:  300
+//        -- Default if omitted:  300
 
 // TODO: Grab logs from SVM at terminate or errors
 
@@ -836,7 +836,7 @@ func (d *Driver) Diff(id, parent string) (io.ReadCloser, error) {
 	ci.Unlock()
 
 	// Start the SVM with a mapped virtual disk. Note that if the SVM is
-	// already runing and we are in global mode, this will be
+	// already running and we are in global mode, this will be
 	// hot-added.
 	mvd := &hcsshim.MappedVirtualDisk{
 		HostPath:          ci.hostPath,

daemon/kill.go

@@ -160,7 +160,7 @@ func (daemon *Daemon) Kill(container *containerpkg.Container) error {
 
 	// Wait for exit with no timeout.
 	// Ignore returned status.
-	_ = <-container.Wait(context.Background(), containerpkg.WaitConditionNotRunning)
+	<-container.Wait(context.Background(), containerpkg.WaitConditionNotRunning)
 
 	return nil
 }

daemon/stop.go

@@ -78,7 +78,7 @@ func (daemon *Daemon) containerStop(container *containerpkg.Container, seconds i
 		// 3. If it doesn't, then send SIGKILL
 		if err := daemon.Kill(container); err != nil {
 			// Wait without a timeout, ignore result.
-			_ = <-container.Wait(context.Background(), containerpkg.WaitConditionNotRunning)
+			<-container.Wait(context.Background(), containerpkg.WaitConditionNotRunning)
 			logrus.Warn(err) // Don't return error because we only care that container is stopped, not what function stopped it
 		}
 	}

hack/integration-cli-on-swarm/agent/master/call.go

@@ -73,14 +73,14 @@ func executeTests(funkerName string, testChunks [][]string) error {
 				}
 				log.Printf("Finished chunk %d [%d/%d] with %d test filters in %s, code=%d.",
 					chunkID, passed+failed, len(testChunks), len(tests),
-					time.Now().Sub(chunkBegin), result.Code)
+					time.Since(chunkBegin), result.Code)
 			}
 		}(chunkID, tests)
 	}
 	wg.Wait()
 	// TODO: print actual tests rather than chunks
 	log.Printf("Executed %d chunks in %s. PASS: %d, FAIL: %d.",
-		len(testChunks), time.Now().Sub(begin), passed, failed)
+		len(testChunks), time.Since(begin), passed, failed)
 	if failed > 0 {
 		return fmt.Errorf("%d chunks failed", failed)
 	}
@@ -103,7 +103,7 @@ func executeTestChunk(funkerName string, args types.Args) (types.Result, error)
 
 func executeTestChunkWithRetry(funkerName string, args types.Args) (types.Result, error) {
 	begin := time.Now()
-	for i := 0; time.Now().Sub(begin) < funkerRetryTimeout; i++ {
+	for i := 0; time.Since(begin) < funkerRetryTimeout; i++ {
 		result, err := executeTestChunk(funkerName, args)
 		if err == nil {
 			log.Printf("executeTestChunk(%q, %d) returned code %d in trial %d", funkerName, args.ChunkID, result.Code, i)

hack/integration-cli-on-swarm/agent/worker/worker.go

@@ -58,7 +58,7 @@ func handle(workerImageDigest string, executor testChunkExecutor) error {
 				RawLog:  rawLog,
 			}
 		}
-		elapsed := time.Now().Sub(begin)
+		elapsed := time.Since(begin)
 		log.Printf("Finished chunk %d, code=%d, elapsed=%v", args.ChunkID, code, elapsed)
 		return types.Result{
 			ChunkID: args.ChunkID,

integration-cli/docker_cli_cp_utils_test.go

@@ -193,9 +193,7 @@ func runDockerCp(c *check.C, src, dst string, params []string) (err error) {
 
 	args := []string{"cp"}
 
-	for _, param := range params {
-		args = append(args, param)
-	}
+	args = append(args, params...)
 
 	args = append(args, src, dst)
 

integration-cli/docker_cli_events_test.go

@@ -36,7 +36,7 @@ func (s *DockerSuite) TestEventsTimestampFormats(c *check.C) {
 	// List of available time formats to --since
 	unixTs := func(t time.Time) string { return fmt.Sprintf("%v", t.Unix()) }
 	rfc3339 := func(t time.Time) string { return t.Format(time.RFC3339) }
-	duration := func(t time.Time) string { return time.Now().Sub(t).String() }
+	duration := func(t time.Time) string { return time.Since(t).String() }
 
 	// --since=$start must contain only the 'untag' event
 	for _, f := range []func(time.Time) string{unixTs, rfc3339, duration} {

integration-cli/fixtures/plugin/plugin.go

@@ -7,7 +7,7 @@ import (
 	"golang.org/x/net/context"
 )
 
-// CreateOpt is is passed used to change the defualt plugin config before
+// CreateOpt is is passed used to change the default plugin config before
 // creating it
 type CreateOpt func(*Config)
 

pkg/devicemapper/devmapper_log.go

@@ -12,7 +12,7 @@ import (
 )
 
 // DevmapperLogger defines methods required to register as a callback for
-// logging events recieved from devicemapper. Note that devicemapper will send
+// logging events received from devicemapper. Note that devicemapper will send
 // *all* logs regardless to callbacks (including debug logs) so it's
 // recommended to not spam the console with the outputs.
 type DevmapperLogger interface {