Mercurial > hg > svcore
view base/HelperExecPath.cpp @ 1841:627a7d7ada45
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author | Chris Cannam |
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date | Tue, 14 Apr 2020 10:12:07 +0100 |
parents | cf3eb6252f42 |
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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 file copyright 2006-2016 Chris Cannam and QMUL. 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 "HelperExecPath.h" #include <QCoreApplication> #include <QFile> #include <QDir> #include <QFileInfo> QStringList HelperExecPath::getTags() { if (sizeof(void *) == 8) { if (m_type == NativeArchitectureOnly) { return { "64", "" }; } else { return { "64", "", "32" }; } } else { return { "", "32" }; } } static bool isGood(QString path) { return QFile(path).exists() && QFileInfo(path).isExecutable(); } QList<HelperExecPath::HelperExec> HelperExecPath::getHelperExecutables(QString basename) { QStringList dummy; return search(basename, dummy); } QString HelperExecPath::getHelperExecutable(QString basename) { auto execs = getHelperExecutables(basename); if (execs.empty()) return ""; else return execs[0].executable; } QStringList HelperExecPath::getHelperDirPaths() { // Helpers are expected to exist in one of the following, in order // from most strongly preferred to least: // // 1. (on Mac only) in <mydir>/../Resources // // 2. (on non-Windows non-Mac platforms only) in // <mydir>/../lib/application-name/ // // 3. (on non-Mac platforms only) in <mydir>/helpers // // 4. in <mydir> QStringList dirs; QString appName = QCoreApplication::applicationName(); QString myDir = QCoreApplication::applicationDirPath(); QString binaryName = QFileInfo(QCoreApplication::arguments().at(0)) .fileName(); #ifdef Q_OS_MAC dirs.push_back(myDir + "/../Resources"); #else #ifndef Q_OS_WIN32 if (binaryName != "") { dirs.push_back(myDir + "/../lib/" + binaryName); } dirs.push_back(myDir + "/../lib/" + appName); #endif dirs.push_back(myDir + "/helpers"); #endif dirs.push_back(myDir); return dirs; } QStringList HelperExecPath::getHelperCandidatePaths(QString basename) { QStringList candidates; (void)search(basename, candidates); return candidates; } QList<HelperExecPath::HelperExec> HelperExecPath::search(QString basename, QStringList &candidates) { QString extension = ""; #ifdef _WIN32 extension = ".exe"; #endif QList<HelperExec> executables; QStringList dirs = getHelperDirPaths(); for (QString t: getTags()) { for (QString d: dirs) { QString path = d + QDir::separator() + basename; if (t != QString()) path += "-" + t; path += extension; candidates.push_back(path); if (isGood(path)) { executables.push_back({ path, t }); break; } } } return executables; }