141 lines
5.1 KiB
C++
141 lines
5.1 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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static StringArray readDeadMansPedalFile (const File& file)
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{
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StringArray lines;
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file.readLines (lines);
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lines.removeEmptyStrings();
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return lines;
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}
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PluginDirectoryScanner::PluginDirectoryScanner (KnownPluginList& listToAddTo,
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AudioPluginFormat& formatToLookFor,
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FileSearchPath directoriesToSearch,
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const bool recursive,
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const File& deadMansPedal,
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bool allowPluginsWhichRequireAsynchronousInstantiation)
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: list (listToAddTo),
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format (formatToLookFor),
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deadMansPedalFile (deadMansPedal),
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allowAsync (allowPluginsWhichRequireAsynchronousInstantiation)
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{
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directoriesToSearch.removeRedundantPaths();
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setFilesOrIdentifiersToScan (format.searchPathsForPlugins (directoriesToSearch, recursive, allowAsync));
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}
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PluginDirectoryScanner::~PluginDirectoryScanner()
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{
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list.scanFinished();
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}
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//==============================================================================
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void PluginDirectoryScanner::setFilesOrIdentifiersToScan (const StringArray& filesOrIdentifiers)
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{
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filesOrIdentifiersToScan = filesOrIdentifiers;
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// If any plugins have crashed recently when being loaded, move them to the
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// end of the list to give the others a chance to load correctly..
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for (auto& crashed : readDeadMansPedalFile (deadMansPedalFile))
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for (int j = filesOrIdentifiersToScan.size(); --j >= 0;)
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if (crashed == filesOrIdentifiersToScan[j])
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filesOrIdentifiersToScan.move (j, -1);
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applyBlacklistingsFromDeadMansPedal (list, deadMansPedalFile);
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nextIndex.set (filesOrIdentifiersToScan.size());
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}
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String PluginDirectoryScanner::getNextPluginFileThatWillBeScanned() const
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{
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return format.getNameOfPluginFromIdentifier (filesOrIdentifiersToScan [nextIndex.get() - 1]);
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}
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void PluginDirectoryScanner::updateProgress()
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{
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progress = (1.0f - nextIndex.get() / (float) filesOrIdentifiersToScan.size());
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}
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bool PluginDirectoryScanner::scanNextFile (bool dontRescanIfAlreadyInList,
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String& nameOfPluginBeingScanned)
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{
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const int index = --nextIndex;
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if (index >= 0)
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{
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auto file = filesOrIdentifiersToScan [index];
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if (file.isNotEmpty() && ! (dontRescanIfAlreadyInList && list.isListingUpToDate (file, format)))
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{
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nameOfPluginBeingScanned = format.getNameOfPluginFromIdentifier (file);
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OwnedArray<PluginDescription> typesFound;
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// Add this plugin to the end of the dead-man's pedal list in case it crashes...
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auto crashedPlugins = readDeadMansPedalFile (deadMansPedalFile);
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crashedPlugins.removeString (file);
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crashedPlugins.add (file);
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setDeadMansPedalFile (crashedPlugins);
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list.scanAndAddFile (file, dontRescanIfAlreadyInList, typesFound, format);
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// Managed to load without crashing, so remove it from the dead-man's-pedal..
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crashedPlugins.removeString (file);
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setDeadMansPedalFile (crashedPlugins);
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if (typesFound.size() == 0 && ! list.getBlacklistedFiles().contains (file))
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failedFiles.add (file);
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}
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}
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updateProgress();
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return index > 0;
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}
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bool PluginDirectoryScanner::skipNextFile()
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{
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updateProgress();
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return --nextIndex > 0;
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}
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void PluginDirectoryScanner::setDeadMansPedalFile (const StringArray& newContents)
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{
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if (deadMansPedalFile.getFullPathName().isNotEmpty())
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deadMansPedalFile.replaceWithText (newContents.joinIntoString ("\n"), true, true);
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}
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void PluginDirectoryScanner::applyBlacklistingsFromDeadMansPedal (KnownPluginList& list, const File& file)
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{
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// If any plugins have crashed recently when being loaded, move them to the
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// end of the list to give the others a chance to load correctly..
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for (auto& crashedPlugin : readDeadMansPedalFile (file))
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list.addToBlacklist (crashedPlugin);
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}
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} // namespace juce
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