klipper/klippy/extras/gcode_macro.py

30 lines
996 B
Python

# Add ability to define custom g-code macros
#
# Copyright (C) 2018 Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
class GCodeMacro:
def __init__(self, config):
self.alias = config.get_name().split()[1].upper()
self.script = config.get('gcode')
printer = config.get_printer()
self.gcode = printer.lookup_object('gcode')
try:
self.gcode.register_command(self.alias, self.cmd, desc=self.cmd_desc)
except self.gcode.error as e:
raise config.error(str(e))
self.in_script = False
cmd_desc = "G-Code macro"
def cmd(self, params):
if self.in_script:
raise self.gcode.error("Macro %s called recursively" % (self.alias,))
self.in_script = True
try:
self.gcode.run_script(self.script)
finally:
self.in_script = False
def load_config_prefix(config):
return GCodeMacro(config)