azureblob,b2,qingstor,s3,swift: remove leading / from paths - fixes #2484

backend/azureblob/azureblob.go

@@ -157,7 +157,7 @@ func (f *Fs) Features() *fs.Features {
 }
 
 // Pattern to match a azure path
-var matcher = regexp.MustCompile(`^([^/]*)(.*)$`)
+var matcher = regexp.MustCompile(`^/*([^/]*)(.*)$`)
 
 // parseParse parses a azure 'url'
 func parsePath(path string) (container, directory string, err error) {

backend/b2/b2.go

@@ -177,7 +177,7 @@ func (f *Fs) Features() *fs.Features {
 }
 
 // Pattern to match a b2 path
-var matcher = regexp.MustCompile(`^([^/]*)(.*)$`)
+var matcher = regexp.MustCompile(`^/*([^/]*)(.*)$`)
 
 // parseParse parses a b2 'url'
 func parsePath(path string) (bucket, directory string, err error) {

backend/qingstor/qingstor.go

@@ -132,10 +132,12 @@ type Object struct {
 
 // ------------------------------------------------------------
 
+// Pattern to match a qingstor path
+var matcher = regexp.MustCompile(`^/*([^/]*)(.*)$`)
+
 // parseParse parses a qingstor 'url'
 func qsParsePath(path string) (bucket, key string, err error) {
 	// Pattern to match a qingstor path
-	var matcher = regexp.MustCompile(`^([^/]*)(.*)$`)
 	parts := matcher.FindStringSubmatch(path)
 	if parts == nil {
 		err = errors.Errorf("Couldn't parse bucket out of qingstor path %q", path)

backend/s3/s3.go

@@ -635,7 +635,7 @@ func (f *Fs) Features() *fs.Features {
 }
 
 // Pattern to match a s3 path
-var matcher = regexp.MustCompile(`^([^/]*)(.*)$`)
+var matcher = regexp.MustCompile(`^/*([^/]*)(.*)$`)
 
 // parseParse parses a s3 'url'
 func s3ParsePath(path string) (bucket, directory string, err error) {

backend/swift/swift.go

@@ -216,7 +216,7 @@ func (f *Fs) Features() *fs.Features {
 }
 
 // Pattern to match a swift path
-var matcher = regexp.MustCompile(`^([^/]*)(.*)$`)
+var matcher = regexp.MustCompile(`^/*([^/]*)(.*)$`)
 
 // parseParse parses a swift 'url'
 func parsePath(path string) (container, directory string, err error) {