Mercurial > hg > svcore
view plugin/PluginPathSetter.cpp @ 1480:5ac102155409 plugin-path-config
Environment variable lookup fixes, & use this implementation throughout
author | Chris Cannam |
---|---|
date | Fri, 08 Jun 2018 11:27:40 +0100 |
parents | f52bf66b9096 |
children | 75fe1c1e003f |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #include "PluginPathSetter.h" #include <vamp-hostsdk/PluginHostAdapter.h> #include "RealTimePluginFactory.h" #include "LADSPAPluginFactory.h" #include "DSSIPluginFactory.h" #include <QSettings> #include <QMutexLocker> #include "system/System.h" QMutex PluginPathSetter::m_mutex; PluginPathSetter::Paths PluginPathSetter::m_defaultPaths; PluginPathSetter::Paths PluginPathSetter::m_environmentPaths; std::map<QString, QString> PluginPathSetter::m_originalEnvValues; using std::string; PluginPathSetter::Paths PluginPathSetter::getEnvironmentPathsUncached() { Paths paths; auto vampPath = Vamp::PluginHostAdapter::getPluginPath(); QStringList qVampPath; for (auto s: vampPath) { qVampPath.push_back(QString::fromStdString(s)); } paths["Vamp"] = { qVampPath, "VAMP_PATH", true }; auto dssiPath = DSSIPluginFactory::getPluginPath(); QStringList qDssiPath; for (auto s: dssiPath) { qDssiPath.push_back(s); } paths["DSSI"] = { qDssiPath, "DSSI_PATH", true }; auto ladspaPath = LADSPAPluginFactory::getPluginPath(); QStringList qLadspaPath; for (auto s: ladspaPath) { qLadspaPath.push_back(s); } paths["LADSPA"] = { qLadspaPath, "LADSPA_PATH", true }; return paths; } PluginPathSetter::Paths PluginPathSetter::getDefaultPaths() { QMutexLocker locker(&m_mutex); if (!m_defaultPaths.empty()) { return m_defaultPaths; } string savedPathVamp, savedPathDssi, savedPathLadspa; (void)getEnvUtf8("VAMP_PATH", savedPathVamp); (void)getEnvUtf8("DSSI_PATH", savedPathDssi); (void)getEnvUtf8("LADSPA_PATH", savedPathLadspa); putEnvUtf8("VAMP_PATH", ""); putEnvUtf8("DSSI_PATH", ""); putEnvUtf8("LADSPA_PATH", ""); Paths paths = getEnvironmentPathsUncached(); putEnvUtf8("VAMP_PATH", savedPathVamp); putEnvUtf8("DSSI_PATH", savedPathDssi); putEnvUtf8("LADSPA_PATH", savedPathLadspa); m_defaultPaths = paths; return m_defaultPaths; } PluginPathSetter::Paths PluginPathSetter::getEnvironmentPaths() { QMutexLocker locker(&m_mutex); if (!m_environmentPaths.empty()) { return m_environmentPaths; } m_environmentPaths = getEnvironmentPathsUncached(); return m_environmentPaths; } PluginPathSetter::Paths PluginPathSetter::getPaths() { Paths paths = getEnvironmentPaths(); QSettings settings; settings.beginGroup("Plugins"); for (auto p: paths) { QString tag = p.first; QStringList directories = settings.value(QString("directories-%1").arg(tag), p.second.directories) .toStringList(); QString envVariable = settings.value(QString("env-variable-%1").arg(tag), p.second.envVariable) .toString(); bool useEnvVariable = settings.value(QString("use-env-variable-%1").arg(tag), p.second.useEnvVariable) .toBool(); string envVarStr = envVariable.toStdString(); string currentValue; (void)getEnvUtf8(envVarStr, currentValue); if (currentValue != "" && useEnvVariable) { directories = QString::fromStdString(currentValue).split( #ifdef Q_OS_WIN ";" #else ":" #endif ); } paths[tag] = { directories, envVariable, useEnvVariable }; } settings.endGroup(); return paths; } void PluginPathSetter::savePathSettings(Paths paths) { QSettings settings; settings.beginGroup("Plugins"); for (auto p: paths) { QString tag = p.first; settings.setValue(QString("directories-%1").arg(tag), p.second.directories); settings.setValue(QString("env-variable-%1").arg(tag), p.second.envVariable); settings.setValue(QString("use-env-variable-%1").arg(tag), p.second.useEnvVariable); } settings.endGroup(); } QString PluginPathSetter::getOriginalEnvironmentValue(QString envVariable) { if (m_originalEnvValues.find(envVariable) != m_originalEnvValues.end()) { return m_originalEnvValues.at(envVariable); } else { return QString(); } } void PluginPathSetter::initialiseEnvironmentVariables() { // Set the relevant environment variables from user configuration, // so that later lookups through the standard APIs will follow the // same paths as we have in the user config // First ensure the default paths have been recorded for later, so // we don't erroneously re-read them from the environment // variables we've just set (void)getDefaultPaths(); (void)getEnvironmentPaths(); Paths paths = getPaths(); for (auto p: paths) { QString envVariable = p.second.envVariable; string envVarStr = envVariable.toStdString(); QString currentValue = qEnvironmentVariable(envVarStr.c_str()); m_originalEnvValues[envVariable] = currentValue; if (currentValue != QString() && p.second.useEnvVariable) { // don't override continue; } QString separator = #ifdef Q_OS_WIN ";" #else ":" #endif ; QString proposedValue = p.second.directories.join(separator); putEnvUtf8(envVarStr, proposedValue.toStdString()); } }