rebase: update to latest snapshotter

this commit update the snapshotter client to v6.1.0

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>

vendor/github.com/go-openapi/jsonreference/internal/normalize_url.go

@@ -0,0 +1,63 @@
+package internal
+
+import (
+	"net/url"
+	"regexp"
+	"strings"
+)
+
+const (
+	defaultHttpPort  = ":80"
+	defaultHttpsPort = ":443"
+)
+
+// Regular expressions used by the normalizations
+var rxPort = regexp.MustCompile(`(:\d+)/?$`)
+var rxDupSlashes = regexp.MustCompile(`/{2,}`)
+
+// NormalizeURL will normalize the specified URL
+// This was added to replace a previous call to the no longer maintained purell library:
+// The call that was used looked like the following:
+//   url.Parse(purell.NormalizeURL(parsed, purell.FlagsSafe|purell.FlagRemoveDuplicateSlashes))
+//
+// To explain all that was included in the call above, purell.FlagsSafe was really just the following:
+//	  - FlagLowercaseScheme
+//	  - FlagLowercaseHost
+//	  - FlagRemoveDefaultPort
+//	  - FlagRemoveDuplicateSlashes (and this was mixed in with the |)
+func NormalizeURL(u *url.URL) {
+	lowercaseScheme(u)
+	lowercaseHost(u)
+	removeDefaultPort(u)
+	removeDuplicateSlashes(u)
+}
+
+func lowercaseScheme(u *url.URL) {
+	if len(u.Scheme) > 0 {
+		u.Scheme = strings.ToLower(u.Scheme)
+	}
+}
+
+func lowercaseHost(u *url.URL) {
+	if len(u.Host) > 0 {
+		u.Host = strings.ToLower(u.Host)
+	}
+}
+
+func removeDefaultPort(u *url.URL) {
+	if len(u.Host) > 0 {
+		scheme := strings.ToLower(u.Scheme)
+		u.Host = rxPort.ReplaceAllStringFunc(u.Host, func(val string) string {
+			if (scheme == "http" && val == defaultHttpPort) || (scheme == "https" && val == defaultHttpsPort) {
+				return ""
+			}
+			return val
+		})
+	}
+}
+
+func removeDuplicateSlashes(u *url.URL) {
+	if len(u.Path) > 0 {
+		u.Path = rxDupSlashes.ReplaceAllString(u.Path, "/")
+	}
+}

vendor/github.com/go-openapi/jsonreference/reference.go

@@ -30,8 +30,8 @@ import (
 	"net/url"
 	"strings"
 
-	"github.com/PuerkitoBio/purell"
 	"github.com/go-openapi/jsonpointer"
+	"github.com/go-openapi/jsonreference/internal"
 )
 
 const (
@@ -114,7 +114,9 @@ func (r *Ref) parse(jsonReferenceString string) error {
 		return err
 	}
 
-	r.referenceURL, _ = url.Parse(purell.NormalizeURL(parsed, purell.FlagsSafe|purell.FlagRemoveDuplicateSlashes))
+	internal.NormalizeURL(parsed)
+
+	r.referenceURL = parsed
 	refURL := r.referenceURL
 
 	if refURL.Scheme != "" && refURL.Host != "" {