Add NSH mv command

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4830 42af7a65-404d-4744-a932-0658087f49c3

ChangeLog.txt

@@ -237,5 +237,6 @@
 	* apps/nshlib/nsh_usbdev.c:  User now has to press ENTER 3 times before
 	  USB console will start.  Otherwise, the USB console starts before there
 	  is anyone at the other end to listen.
-	* apps/nshilib/nsh_usbdev.c and nsh_consolemain.c:  Add support for the USB
+	* apps/nshlib/nsh_usbdev.c and nsh_consolemain.c:  Add support for the USB
 	  capability when a USB console is used.
+	* apps/nshlib/nsh_fscmds.c:  Add the 'mv' command

nshlib/README.txt

@@ -602,6 +602,11 @@ o mount -t <fstype> <block-device> <dir-path>
     This is a test
     nsh>
 
+o mv <old-path> <new-path>
+
+  Rename the file object at <old-path> to <new-path>.  Both paths must
+  reside in the same mounted filesystem.
+
 o ps
 
   Show the currently active threads and tasks.  For example,
@@ -802,6 +807,7 @@ Command Dependencies on Configuration Settings
   mkfifo     CONFIG_NFILE_DESCRIPTORS > 0
   mkrd       !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_FS_WRITABLE (see note 4)
   mount      !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_FS_READABLE (see note 3)
+  mv         !CONFIG_DISABLE_MOUNTPOINT && CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_FS_WRITABLE (see note 4)
   ping       CONFIG_NET && CONFIG_NET_ICMP && CONFIG_NET_ICMP_PING  && !CONFIG_DISABLE_CLOCK && !CONFIG_DISABLE_SIGNALS
   ps         --
   put        CONFIG_NET && CONFIG_NET_UDP && CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_NET_BUFSIZE >= 558 (see note 1,2)
@@ -840,12 +846,12 @@ also allow it to squeeze into very small memory footprints.
   CONFIG_NSH_DISABLE_LOSETUP,  CONFIG_NSH_DISABLE_LS,       CONFIG_NSH_DISABLE_MB,
   CONFIG_NSH_DISABLE_MKDIR,    CONFIG_NSH_DISABLE_MKFATFS,  CONFIG_NSH_DISABLE_MKFIFO,
   CONFIG_NSH_DISABLE_MKRD,     CONFIG_NSH_DISABLE_MH,       CONFIG_NSH_DISABLE_MOUNT,
-  CONFIG_NSH_DISABLE_MW,       CONFIG_NSH_DISABLE_PS,       CONFIG_NSH_DISABLE_PING,
+  CONFIG_NSH_DISABLE_MW,       CONFIG_NSH_DISABLE_MV,       CONFIG_NSH_DISABLE_PS,
-  CONFIG_NSH_DISABLE_PUT,      CONFIG_NSH_DISABLE_PWD,      CONFIG_NSH_DISABLE_RM,
+  CONFIG_NSH_DISABLE_PING,     CONFIG_NSH_DISABLE_PUT,      CONFIG_NSH_DISABLE_PWD,
-  CONFIG_NSH_DISABLE_RMDIR,    CONFIG_NSH_DISABLE_SET,      CONFIG_NSH_DISABLE_SH,
+  CONFIG_NSH_DISABLE_RM,       CONFIG_NSH_DISABLE_RMDIR,    CONFIG_NSH_DISABLE_SET,
-  CONFIG_NSH_DISABLE_SLEEP,    CONFIG_NSH_DISABLE_TEST,     CONFIG_NSH_DISABLE_UMOUNT,
+  CONFIG_NSH_DISABLE_SH,       CONFIG_NSH_DISABLE_SLEEP,    CONFIG_NSH_DISABLE_TEST,
-  CONFIG_NSH_DISABLE_UNSET,    CONFIG_NSH_DISABLE_USLEEP,   CONFIG_NSH_DISABLE_WGET,
+  CONFIG_NSH_DISABLE_UMOUNT,   CONFIG_NSH_DISABLE_UNSET,    CONFIG_NSH_DISABLE_USLEEP,
-  CONFIG_NSH_DISABLE_XD
+  CONFIG_NSH_DISABLE_WGET,     CONFIG_NSH_DISABLE_XD
 
 NSH-Specific Configuration Settings
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

nshlib/nsh.h

@@ -521,6 +521,9 @@ void nsh_usbtrace(void);
 #       ifndef CONFIG_NSH_DISABLE_MKRD
            int cmd_mkrd(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
 #       endif
+#       ifndef CONFIG_NSH_DISABLE_MV
+           int cmd_mv(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
+#       endif
 #       ifndef CONFIG_NSH_DISABLE_RM
            int cmd_rm(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv);
 #       endif

nshlib/nsh_fscmds.c

@@ -1212,6 +1212,50 @@ int cmd_mount(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
 #endif
 #endif
 
+/****************************************************************************
+ * Name: cmd_mv
+ ****************************************************************************/
+
+#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_FS_WRITABLE)
+#ifndef CONFIG_NSH_DISABLE_MV
+int cmd_mv(FAR struct nsh_vtbl_s *vtbl, int argc, char **argv)
+{
+  char *oldpath;
+  char *newpath;
+  int ret;
+
+  /* Get the full path to the old and new file paths */
+
+  oldpath = nsh_getfullpath(vtbl, argv[1]);
+  if (!oldpath)
+    {
+      return ERROR;
+    }
+
+  newpath = nsh_getfullpath(vtbl, argv[2]);
+  if (!newpath)
+    {
+      nsh_freefullpath(newpath);
+      return ERROR;
+    }
+
+  /* Perform the mount */
+
+  ret = rename(oldpath, newpath);
+  if (ret < 0)
+    {
+      nsh_output(vtbl, g_fmtcmdfailed, argv[0], "rename", NSH_ERRNO);
+    }
+
+  /* Free the file paths */
+
+  nsh_freefullpath(oldpath);
+  nsh_freefullpath(newpath);
+  return ret;
+}
+#endif
+#endif
+
 /****************************************************************************
  * Name: cmd_nfsmount
  ****************************************************************************/

nshlib/nsh_parse.c

@@ -263,6 +263,12 @@ static const struct cmdmap_s g_cmdmap[] =
 # endif
 #endif
 
+#if !defined(CONFIG_DISABLE_MOUNTPOINT) && CONFIG_NFILE_DESCRIPTORS > 0 && defined(CONFIG_FS_WRITABLE)
+#  ifndef CONFIG_NSH_DISABLE_MV
+  { "mv",       cmd_mv,       3, 3, "<old-path> <new-path>" },
+#  endif
+#endif
+
 #ifndef CONFIG_NSH_DISABLE_MW
   { "mw",       cmd_mw,       2, 3, "<hex-address>[=<hex-value>][ <hex-byte-count>]" },
 #endif