blob/azureblob: handle precondition error for BlobExists (#3635)

SoMuchForSubtlety · web-flow · commit eff724af91aa · 2025-11-05T10:13:32.000-08:00
diff --git a/blob/azureblob/azureblob.go b/blob/azureblob/azureblob.go
@@ -665,6 +665,9 @@ func (b *bucket) ErrorCode(err error) gcerrors.ErrorCode {
 		if code == bloberror.AuthenticationFailed {
 			return gcerrors.PermissionDenied
 		}
+		if code == bloberror.BlobAlreadyExists {
+			return gcerrors.FailedPrecondition
+		}
 	}
 	if strings.Contains(err.Error(), "no such host") {
 		// This happens with an invalid storage account name; the host

Original file line number	Diff line number	Diff line change
`@@ -665,6 +665,9 @@ func (b *bucket) ErrorCode(err error) gcerrors.ErrorCode {`
`665`	`665`	`if code == bloberror.AuthenticationFailed {`
`666`	`666`	`return gcerrors.PermissionDenied`
`667`	`667`	`}`
	`668`	`+ if code == bloberror.BlobAlreadyExists {`
	`669`	`+ return gcerrors.FailedPrecondition`
	`670`	`+ }`
`668`	`671`	`}`
`669`	`672`	`if strings.Contains(err.Error(), "no such host") {`
`670`	`673`	`// This happens with an invalid storage account name; the host`