# Houdini Incremental Save

Houdini’s incremental saving feature increments the version number with every single save. I personally prefer to choose exactly when I want to save the current state and continue working on a new version, so I wrote a script for it.

## Installation

1. Right click on a shelf
2. Choose “New Tool…”
3. Set the name, ID and icon (eg. this one).
4. Paste the script into the “Script” tab

## Script

You can also find this script in my houdini-library GitHub repository.

# Copyright (C) 2017  Niklas Rosenstein
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
"""
This script increments the number at the end of the current scene's name and
saves it as a new file. If there is no number at the end, it will append a
new number suffix and start from "1".
"""

import hou
import os
import re

new_suffix_format = '_0001'
regex = re.compile('(.*?)(\d+)(\.\w+)')

def main():
hip = hou.hipFile
filename = hip.path()
match = regex.match(filename)
if match:
filename, number, ext = match.groups()
filename += str(int(number) + 1).rjust(len(number), '0') + ext
else:
filename, ext = os.path.splitext(filename)
filename += new_suffix_format + ext

if os.path.isfile(filename):
overwrite = hou.ui.displayConfirmation(
'The file "{}" already exists. Do you want to overwrite it?'
.format(filename))
if not overwrite:
return

hip.save(filename)

main()