Method: File.rename

Defined in:
file.c

.rename(old_name, new_name) ⇒ 0

Renames the given file to the new name. Raises a SystemCallError if the file cannot be renamed.

File.rename("afile", "afile.bak")   #=> 0

Returns:

  • (0) 


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# File 'file.c', line 3172

static VALUE
rb_file_s_rename(VALUE klass, VALUE from, VALUE to)
{
    struct rename_args ra;
    VALUE f, t;

    FilePathValue(from);
    FilePathValue(to);
    f = rb_str_encode_ospath(from);
    t = rb_str_encode_ospath(to);
    ra.src = StringValueCStr(f);
    ra.dst = StringValueCStr(t);
#if defined __CYGWIN__
    errno = 0;
#endif
    if ((int)(VALUE)rb_thread_call_without_gvl(no_gvl_rename, &ra,
					 RUBY_UBF_IO, 0) < 0) {
	int e = errno;
#if defined DOSISH
	switch (e) {
	  case EEXIST:
	    if (chmod(ra.dst, 0666) == 0 &&
		unlink(ra.dst) == 0 &&
		rename(ra.src, ra.dst) == 0)
		return INT2FIX(0);
	}
#endif
	syserr_fail2(e, from, to);
    }

    return INT2FIX(0);
}