undo - 2024.1 English

Vivado Design Suite Tcl Command Reference Guide (UG835)

Document ID
UG835
Release Date
2024-05-30
Version
2024.1 English

Un-do previous command

Syntax

undo [‑list] [‑quiet] [‑verbose]

Returns

With -list, the list of undoable tasks.

Usage

Name Description
[-list] Show a list of undoable tasks
[-quiet] Ignore command errors
[-verbose] Suspend message limits during command execution

Categories

GUIControl

Description

Important: The undo and redo commands are intended for use in the Vivado™ IDE, and are not recommended for use in Tcl scripts to restore designs to a former state. To restore a design to a specific condition, you must write a design checkpoint using the write_checkpoint command, to be restored using read_checkpoint.

Undo a prior command. This command can be used repeatedly to undo a series of commands.

If a group of commands has been created using the startgroup and endgroup commands, this command will undo that group as a sequence. The undo command will start at the endgroup command and continue to undo until it hits the startgroup command.

If you undo a command, and then change your mind, you can redo the command.

Arguments

-list - (Optional) Reports the list of commands that can be undone. As you execute the undo command, the tool will step backward through this list of commands.

-quiet - (Optional) Execute the command quietly, returning no messages from the command. The command also returns TCL_OK regardless of any errors encountered during execution.
Note: Any errors encountered on the command-line, while launching the command, will be returned. Only errors occurring inside the command will be trapped.
-verbose - (Optional) Temporarily override any message limits and return all messages from this command.
Note: Message limits can be defined with the set_msg_config command.

Examples

The following example returns a list of commands that you can undo:

undo -list