Minor nits

src/cli/repo/s3.go

@@ -57,8 +57,8 @@ func addS3Commands(cmd *cobra.Command) *cobra.Command {
 	// More generic and more frequently used flags take precedence.
 	fs.StringVar(&bucket, "bucket", "", "Name of S3 bucket for repo. (required)")
 	fs.StringVar(&prefix, "prefix", "", "Repo prefix within bucket.")
-	fs.StringVar(&endpoint, "endpoint", "127.0.0.1:9000", "S3 service endpoint.")
-	fs.BoolVar(&doNotUseTLS, "disable-tls", true, "Disable TLS (HTTPS)")
+	fs.StringVar(&endpoint, "endpoint", "s3.amazonaws.com", "S3 service endpoint.")
+	fs.BoolVar(&doNotUseTLS, "disable-tls", false, "Disable TLS (HTTPS)")
 	fs.BoolVar(&doNotVerifyTLS, "disable-tls-verification", false, "Disable TLS (HTTPS) certificate verification.")
 
 	// In general, we don't want to expose this flag to users and have them mistake it

src/pkg/extensions/extensions.go

@@ -22,7 +22,7 @@ type CorsoItemExtensionFactory func(
 	*details.ExtensionInfo,
 ) (CorsoItemExtension, error)
 
-// Thin wrapper for runtime logging & metrics
+// Thin wrapper for runtime logging & metrics around extensions
 type loggerExtension struct {
 	info    details.ItemInfo
 	innerRc io.ReadCloser
@@ -84,7 +84,8 @@ var _ AddItemExtensioner = &ItemExtensionHandler{}
 type ItemExtensionHandler struct{}
 
 // AddItemExtensions wraps provided readcloser with extensions
-// supplied via factory
+// supplied via factory, with the first extension in slice being
+// the innermost one.
 func (eh *ItemExtensionHandler) AddItemExtensions(
 	ctx context.Context,
 	rc io.ReadCloser,

src/pkg/extensions/extensions_test.go

@@ -20,9 +20,7 @@ import (
 
 var _ CorsoItemExtension = &MockExtension{}
 
-// Temporary, testing purposes only
 type MockExtension struct {
-	// TODO: Add cumlulative crc32 checksum
 	numBytes    int
 	crc32       uint32
 	info        details.ItemInfo
@@ -48,7 +46,7 @@ func (me *MockExtension) Read(p []byte) (int, error) {
 	me.crc32 = crc32.Update(me.crc32, crc32.IEEETable, p[:n])
 
 	if err == io.EOF {
-		logger.Ctx(me.ctx).Info("mock extension reached EOF")
+		logger.Ctx(me.ctx).Debug("mock extension reached EOF")
 		me.extInfo.Data["numBytes"] = me.numBytes
 		me.extInfo.Data["crc32"] = me.crc32
 	}
@@ -97,25 +95,6 @@ func TestExtensionsUnitSuite(t *testing.T) {
 	suite.Run(t, &ExtensionsUnitSuite{Suite: tester.NewUnitSuite(t)})
 }
 
-// func readFrom(rc io.ReadCloser) error {
-// 	defer rc.Close()
-
-// 	p := make([]byte, 4)
-
-// 	for {
-// 		_, err := rc.Read(p)
-// 		if err == io.EOF {
-// 			break
-// 		}
-
-// 		if err != nil {
-// 			return err
-// 		}
-// 	}
-
-// 	return nil
-// }
-
 func (suite *ExtensionsUnitSuite) TestAddItemExtensions() {
 	type outputValidationFunc func(
 		extRc io.ReadCloser,