fix some typos in source comments

Signed-off-by: bin liu <liubin0329@gmail.com>

digest/tarsum.go

@@ -6,10 +6,10 @@ import (
 	"regexp"
 )
 
-// TarSumRegexp defines a reguler expression to match tarsum identifiers.
+// TarSumRegexp defines a regular expression to match tarsum identifiers.
 var TarsumRegexp = regexp.MustCompile("tarsum(?:.[a-z0-9]+)?\\+[a-zA-Z0-9]+:[A-Fa-f0-9]+")
 
-// TarsumRegexpCapturing defines a reguler expression to match tarsum identifiers with
+// TarsumRegexpCapturing defines a regular expression to match tarsum identifiers with
 // capture groups corresponding to each component.
 var TarsumRegexpCapturing = regexp.MustCompile("(tarsum)(.([a-z0-9]+))?\\+([a-zA-Z0-9]+):([A-Fa-f0-9]+)")
 

doc.go

@@ -2,6 +2,6 @@
 // docker distribution. The goal is to allow users to reliably package, ship
 // and store content related to docker images.
 //
-// This is currently a work in progress. More details are availalbe in the
+// This is currently a work in progress. More details are available in the
 // README.md.
 package distribution

notifications/sinks.go

@@ -220,7 +220,7 @@ type retryingSink struct {
 	sink   Sink
 	closed bool
 
-	// circuit breaker hueristics
+	// circuit breaker heuristics
 	failures struct {
 		threshold int
 		recent    int
@@ -317,7 +317,7 @@ func (rs *retryingSink) wait(backoff time.Duration) {
 	time.Sleep(backoff)
 }
 
-// reset marks a succesful call.
+// reset marks a successful call.
 func (rs *retryingSink) reset() {
 	rs.failures.recent = 0
 	rs.failures.last = time.Time{}
@@ -330,7 +330,7 @@ func (rs *retryingSink) failure() {
 }
 
 // proceed returns true if the call should proceed based on circuit breaker
-// hueristics.
+// heuristics.
 func (rs *retryingSink) proceed() bool {
 	return rs.failures.recent < rs.failures.threshold ||
 		time.Now().UTC().After(rs.failures.last.Add(rs.failures.backoff))

registry/auth/auth.go

@@ -3,7 +3,7 @@
 // An access controller has a simple interface with a single `Authorized`
 // method which checks that a given request is authorized to perform one or
 // more actions on one or more resources. This method should return a non-nil
-// error if the requset is not authorized.
+// error if the request is not authorized.
 //
 // An implementation registers its access controller by name with a constructor
 // which accepts an options map for configuring the access controller.
@@ -50,7 +50,7 @@ type Resource struct {
 }
 
 // Access describes a specific action that is
-// requested or allowed for a given recource.
+// requested or allowed for a given resource.
 type Access struct {
 	Resource
 	Action string

registry/auth/token/util.go

@@ -7,7 +7,7 @@ import (
 )
 
 // joseBase64UrlEncode encodes the given data using the standard base64 url
-// encoding format but with all trailing '=' characters ommitted in accordance
+// encoding format but with all trailing '=' characters omitted in accordance
 // with the jose specification.
 // http://tools.ietf.org/html/draft-ietf-jose-json-web-signature-31#section-2
 func joseBase64UrlEncode(b []byte) string {

registry/storage/driver/ipc/server.go

@@ -101,7 +101,7 @@ func handleRequest(driver storagedriver.StorageDriver, request Request) {
 		}
 	case "ReadStream":
 		path, _ := request.Parameters["Path"].(string)
-		// Depending on serialization method, Offset may be convereted to any int/uint type
+		// Depending on serialization method, Offset may be converted to any int/uint type
 		offset := reflect.ValueOf(request.Parameters["Offset"]).Convert(reflect.TypeOf(int64(0))).Int()
 		reader, err := driver.ReadStream(path, offset)
 		var response ReadStreamResponse
@@ -116,9 +116,9 @@ func handleRequest(driver storagedriver.StorageDriver, request Request) {
 		}
 	case "WriteStream":
 		path, _ := request.Parameters["Path"].(string)
-		// Depending on serialization method, Offset may be convereted to any int/uint type
+		// Depending on serialization method, Offset may be converted to any int/uint type
 		offset := reflect.ValueOf(request.Parameters["Offset"]).Convert(reflect.TypeOf(int64(0))).Int()
-		// Depending on serialization method, Size may be convereted to any int/uint type
+		// Depending on serialization method, Size may be converted to any int/uint type
 		size := reflect.ValueOf(request.Parameters["Size"]).Convert(reflect.TypeOf(int64(0))).Int()
 		reader, _ := request.Parameters["Reader"].(io.ReadCloser)
 		err := driver.WriteStream(path, offset, size, reader)

registry/storage/driver/testsuites/testsuites.go

@@ -435,7 +435,7 @@ func (suite *DriverSuite) testContinueStreamAppend(c *check.C, chunkSize int64)
 	c.Assert(err, check.IsNil)
 	c.Assert(received, check.DeepEquals, fullContents)
 
-	// Writing past size of file extends file (no offest error). We would like
+	// Writing past size of file extends file (no offset error). We would like
 	// to write chunk 4 one chunk length past chunk 3. It should be successful
 	// and the resulting file will be 5 chunks long, with a chunk of all
 	// zeros.

registry/storage/layer_test.go

@@ -336,7 +336,7 @@ func seekerSize(seeker io.ReadSeeker) (int64, error) {
 
 // createTestLayer creates a simple test layer in the provided driver under
 // tarsum dgst, returning the sha256 digest location. This is implemented
-// peicemeal and should probably be replaced by the uploader when it's ready.
+// piecemeal and should probably be replaced by the uploader when it's ready.
 func writeTestLayer(driver storagedriver.StorageDriver, pathMapper *pathMapper, name string, dgst digest.Digest, content io.Reader) (digest.Digest, error) {
 	h := sha256.New()
 	rd := io.TeeReader(content, h)

registry/storage/layerwriter.go

@@ -182,7 +182,7 @@ func (lw *layerWriter) resumeHashAt(offset int64) error {
 	}
 
 	if offset == int64(lw.resumableDigester.Len()) {
-		// State of digester is already at the requseted offset.
+		// State of digester is already at the requested offset.
 		return nil
 	}
 

registry/storage/paths.go

@@ -387,7 +387,7 @@ type layerLinkPathSpec struct {
 func (layerLinkPathSpec) pathSpec() {}
 
 // blobAlgorithmReplacer does some very simple path sanitization for user
-// input. Mostly, this is to provide some heirachry for tarsum digests. Paths
+// input. Mostly, this is to provide some hierarchy for tarsum digests. Paths
 // should be "safe" before getting this far due to strict digest requirements
 // but we can add further path conversion here, if needed.
 var blobAlgorithmReplacer = strings.NewReplacer(