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feat(plugin)!: merge G-code post-processing into the slicing pipeline as psGCodePostProcess

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G-code post-processing is now a step of the slicing-pipeline plugin rather than a
separate capability type. One capability class can transform slices at the geometry
seams AND edit the final G-code, behind a single picker/option.

- Add SlicingPipelineStepPlugin::psGCodePostProcess (bound as
  orca.slicing.Step.psGCodePostProcess). Unlike the geometry steps it fires from the
  GUI export path in PostProcessor.cpp, not from Print::process(): ctx.print/ctx.object
  are None and the plugin edits the file at ctx.gcode_path in place. It may run more
  than once per slice (file export and/or upload) and its output is not shown in the
  preview.
- Extend SlicingPipelineContext with gcode_path/host/output_name and a C++-only
  full_config; config_value() falls back to it when there is no live Print.
- PostProcessor.cpp dispatches SlicingPipelinePluginCapability at psGCodePostProcess,
  driven by the existing slicing_pipeline_plugin option.
- The exported G-code lives outside data_dir(), so the plugin audit sandbox would
  block the write; the trampoline's audit setup grants ctx.gcode_path's folder as a
  scoped allowed root, gated on a non-empty gcode_path so the geometry-step hooks gain
  no extra filesystem access.

BREAKING CHANGE: the separate G-code post-processing capability type is removed.
- orca.gcode.GCodePluginCapabilityBase and orca.PluginType.PostProcessing are gone;
  post-processing plugins migrate to orca.slicing.SlicingPipelineCapabilityBase +
  Step.psGCodePostProcess (and gain ctx.params / ctx.config_value()).
- The post_process_plugin config option is removed; use slicing_pipeline_plugin.
  Presets carrying the old key degrade to the standard unknown-key warning.
- Manifest type = "post-processing" now maps to Unknown (advisory only; the loader
  dispatches on the C++ get_type()).

Also repairs two latent build breaks the branch carried: stale Step enum value usages
in test_slicing_pipeline_hook.cpp and a reference to the removed
ConfigOptionDef::PluginType::None in Tab::on_value_change (now is_plugin_backed()).
Adds the orca_gcode_stamp sample plugin and a psGCodePostProcess binding test.
This commit is contained in:
SoftFever
2026-07-10 19:57:35 +08:00
parent 21ed68963f
commit 19352215da
25 changed files with 288 additions and 200 deletions
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14
src/libslic3r/PrintConfig.cpp
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@@ -5114,20 +5114,10 @@ void PrintConfigDef::init_fff_params()
def->mode = comDevelop;
def->set_default_value(new ConfigOptionStrings());
def = this->add("post_process_plugin", coStrings);
def->label = L("Post-processing Plugin");
def->tooltip = L("Select a Python plugin to process the output G-code. "
"Plugins are loaded from the orca_plugins directory in your data folder. "
"The plugin will receive the G-code file path and can modify it in place.");
def->gui_type = ConfigOptionDef::GUIType::plugin_picker;
def->plugin_type = "post-processing";
def->full_width = true;
def->mode = comAdvanced;
def->set_default_value(new ConfigOptionStrings());
def = this->add("slicing_pipeline_plugin", coStrings);
def->label = L("Slicing Pipeline Plugin");
def->tooltip = L("Python plugin(s) invoked at each slicing pipeline step to read and modify intermediate slicing data. Research/experimental.");
def->tooltip = L("Python plugin(s) invoked at each slicing pipeline step to read and modify intermediate slicing data, "
"including a final G-code post-processing step. Research/experimental.");
def->gui_type = ConfigOptionDef::GUIType::plugin_picker;
def->plugin_type = "slicing-pipeline";
def->full_width = true;