Add os.Rename.

R=rsc
http://codereview.appspot.com/166058

1 files changed, 10 insertions, 1 deletions

diff --git a/src/pkg/os/file.go b/src/pkg/os/file.go
index dc722055a..03c6d5701 100644
--- a/src/pkg/os/file.go
+++ b/src/pkg/os/file.go
@@ -370,7 +370,7 @@ func Remove(name string) Error {
 	return &PathError{"remove", name, Errno(e)};
 }
 
-// LinkError records an error during a link or symlink
+// LinkError records an error during a link or symlink or rename
 // system call and the paths that caused it.
 type LinkError struct {
 	Op	string;
@@ -418,6 +418,15 @@ func Readlink(name string) (string, Error) {
 	return "", nil;
 }
 
+// Rename renames a file.
+func Rename(oldname, newname string) Error {
+	e := syscall.Rename(oldname, newname);
+	if e != 0 {
+		return &LinkError{"rename", oldname, newname, Errno(e)}
+	}
+	return nil;
+}
+
 // Chmod changes the mode of the named file to mode.
 // If the file is a symbolic link, it changes the uid and gid of the link's target.
 func Chmod(name string, mode int) Error {