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93 lines
3.2 KiB
Python
93 lines
3.2 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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ScriptUtils.py
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---------------------
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Date : August 2012
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Copyright : (C) 2012 by Victor Olaya
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Email : volayaf at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Victor Olaya'
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__date__ = 'August 2012'
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__copyright__ = '(C) 2012, Victor Olaya'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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from qgis.processing import alg as algfactory
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import os
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import inspect
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import importlib
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from qgis.PyQt.QtCore import QCoreApplication
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from qgis.core import (Qgis,
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QgsProcessingAlgorithm,
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QgsProcessingFeatureBasedAlgorithm,
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QgsMessageLog
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)
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from processing.core.ProcessingConfig import ProcessingConfig
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from processing.tools.system import mkdir, userFolder
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scriptsRegistry = dict()
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SCRIPTS_FOLDERS = "SCRIPTS_FOLDERS"
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def defaultScriptsFolder():
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folder = str(os.path.join(userFolder(), "scripts"))
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mkdir(folder)
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return os.path.abspath(folder)
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def scriptsFolders():
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folder = ProcessingConfig.getSetting(SCRIPTS_FOLDERS)
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if folder is not None:
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return folder.split(";")
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else:
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return [ScriptUtils.defaultScriptsFolder()]
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def loadAlgorithm(moduleName, filePath):
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global scriptsRegistry
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try:
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spec = importlib.util.spec_from_file_location(moduleName, filePath)
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module = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(module)
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try:
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alg = algfactory.instances.pop().createInstance()
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scriptsRegistry[alg.name()] = filePath
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return alg
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except IndexError:
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for x in dir(module):
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obj = getattr(module, x)
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if inspect.isclass(obj) and issubclass(obj, (QgsProcessingAlgorithm, QgsProcessingFeatureBasedAlgorithm)) and obj.__name__ not in ("QgsProcessingAlgorithm", "QgsProcessingFeatureBasedAlgorithm"):
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o = obj()
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scriptsRegistry[o.name()] = filePath
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return o
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except ImportError as e:
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QgsMessageLog.logMessage(QCoreApplication.translate("ScriptUtils", "Could not import script algorithm '{}' from '{}'\n{}").format(moduleName, filePath, str(e)),
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QCoreApplication.translate("ScriptUtils", "Processing"),
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Qgis.Critical)
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def findAlgorithmSource(name):
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global scriptsRegistry
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try:
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return scriptsRegistry[name]
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except:
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return None
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