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68dc28580f
Signed-off-by: Janar Sööt <janar.soot@gmail.com> Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
46 lines
1.5 KiB
Python
46 lines
1.5 KiB
Python
# Add ability to define custom g-code macros
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#
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# Copyright (C) 2018 Kevin O'Connor <kevin@koconnor.net>
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#
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# This file may be distributed under the terms of the GNU GPLv3 license.
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import logging
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DEFAULT_PREFIX = 'default_parameter_'
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class GCodeMacro:
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def __init__(self, config):
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self.alias = config.get_name().split()[1].upper()
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self.script = config.get('gcode')
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printer = config.get_printer()
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self.gcode = printer.lookup_object('gcode')
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try:
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self.gcode.register_command(
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self.alias, self.cmd, desc=self.cmd_desc)
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except self.gcode.error as e:
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raise config.error(str(e))
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self.in_script = False
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self.kwparams = { o[len(DEFAULT_PREFIX):].upper(): config.get(o)
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for o in config.get_prefix_options(DEFAULT_PREFIX) }
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cmd_desc = "G-Code macro"
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def cmd(self, params):
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if self.in_script:
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raise self.gcode.error(
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"Macro %s called recursively" % (self.alias,))
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script = ""
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kwparams = dict(self.kwparams)
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kwparams.update(params)
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try:
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script = self.script.format(**kwparams)
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except Exception:
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msg = "Macro %s script formatting failed" % (self.alias,)
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logging.exception(msg)
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raise self.gcode.error(msg)
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self.in_script = True
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try:
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self.gcode.run_script_from_command(script)
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finally:
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self.in_script = False
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def load_config_prefix(config):
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return GCodeMacro(config)
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