mirror of
https://github.com/OrcaSlicer/OrcaSlicer.git
synced 2026-10-03 05:41:10 +00:00
HanifKoh
6842d9c778
The plugin test fixtures start the interpreter before the test points
data_dir at its temporary directory, so PythonInterpreter creates
{data_dir}/python/packages and {data_dir}/log with an empty data_dir: a
python/ and log/ folder in whatever directory the tests run from. When that
is the test binary's folder, the next run's embedded-interpreter tests took
the stray python/ as their home and failed to start Python.
Give each fixture that initializes the plugin manager its own temporary
data directory, set up before initialize(), and only use the python/ folder
next to the test binary as the interpreter's home when it holds a standard
library.
62 lines
1.9 KiB
C++
62 lines
1.9 KiB
C++
#pragma once
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// Shared embedded-interpreter bootstrap for slic3rutils tests that need a live Python
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// interpreter (test_plugin_host_api.cpp, test_slicing_pipeline_bindings.cpp, ...).
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#include <boost/dll/runtime_symbol_info.hpp>
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#include <boost/filesystem.hpp>
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#include <memory.h>
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#include <stdexcept>
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#include <string>
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#include <pybind11/embed.h>
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#include <pybind11/pybind11.h>
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#include <slic3r/plugin/PythonPluginBridge.hpp>
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namespace {
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void ensure_python_initialized()
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{
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if (Py_IsInitialized())
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return;
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static std::unique_ptr<pybind11::scoped_interpreter> interpreter;
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PyConfig config;
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PyConfig_InitPythonConfig(&config);
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config.parse_argv = 0;
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const auto python_home = boost::dll::program_location().parent_path() / "python";
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#ifdef _WIN32
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const auto stdlib = python_home / "Lib";
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#else
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const auto stdlib = python_home / "lib" /
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("python" + std::to_string(PY_MAJOR_VERSION) + "." + std::to_string(PY_MINOR_VERSION));
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#endif
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// Only a real runtime: a stray python/ folder (packages a test left behind) is not a home.
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if (boost::filesystem::exists(stdlib / "encodings")) {
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const std::string home = python_home.string();
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const PyStatus status = PyConfig_SetBytesString(&config, &config.home, home.c_str());
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if (PyStatus_Exception(status)) {
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const char* message = status.err_msg ? status.err_msg : "Failed to set Python home";
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PyConfig_Clear(&config);
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throw std::runtime_error(message);
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}
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}
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interpreter = std::make_unique<pybind11::scoped_interpreter>(&config);
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}
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pybind11::module_ import_orca_module()
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{
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ensure_python_initialized();
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// Force PythonPluginBridge.cpp into the test binary so the embedded
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// PYBIND11_EMBEDDED_MODULE(orca, ...) registration is available.
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(void) Slic3r::PythonPluginBridge::instance();
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return pybind11::module_::import("orca");
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}
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} // namespace
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