/
jucer_Module.cpp
826 lines (649 loc) · 26.9 KB
/
jucer_Module.cpp
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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2017 - ROLI Ltd.
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 5 End-User License
Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
27th April 2017).
End User License Agreement: www.juce.com/juce-5-licence
Privacy Policy: www.juce.com/juce-5-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
#include "../Application/jucer_Headers.h"
#include "../ProjectSaving/jucer_ProjectSaver.h"
#include "../ProjectSaving/jucer_ProjectExport_Xcode.h"
#include "../Application/jucer_Application.h"
//==============================================================================
ModuleDescription::ModuleDescription (const File& folder)
: moduleFolder (folder),
moduleInfo (parseJUCEHeaderMetadata (getHeader()))
{
}
File ModuleDescription::getHeader() const
{
if (moduleFolder != File())
{
const char* extensions[] = { ".h", ".hpp", ".hxx" };
for (auto e : extensions)
{
auto header = moduleFolder.getChildFile (moduleFolder.getFileName() + e);
if (header.existsAsFile())
return header;
}
}
return {};
}
StringArray ModuleDescription::getDependencies() const
{
auto deps = StringArray::fromTokens (moduleInfo ["dependencies"].toString(), " \t;,", "\"'");
deps.trim();
deps.removeEmptyStrings();
return deps;
}
//==============================================================================
static bool tryToAddModuleFromFolder (const File& path, ModuleIDAndFolderList& list)
{
ModuleDescription m (path);
if (m.isValid())
{
list.push_back ({ m.getID(), path });
return true;
}
return false;
}
static void addAllModulesInSubfoldersRecursively (const File& path, int depth, ModuleIDAndFolderList& list)
{
if (depth > 0)
{
for (DirectoryIterator iter (path, false, "*", File::findDirectories); iter.next();)
{
if (auto* job = ThreadPoolJob::getCurrentThreadPoolJob())
if (job->shouldExit())
return;
auto childPath = iter.getFile();
if (! tryToAddModuleFromFolder (childPath, list))
addAllModulesInSubfoldersRecursively (childPath, depth - 1, list);
}
}
}
static void addAllModulesInFolder (const File& path, ModuleIDAndFolderList& list)
{
if (! tryToAddModuleFromFolder (path, list))
{
int subfolders = 3;
addAllModulesInSubfoldersRecursively (path, subfolders, list);
}
}
static void sort (ModuleIDAndFolderList& listToSort)
{
std::sort (listToSort.begin(), listToSort.end(), [] (const ModuleIDAndFolder& m1, const ModuleIDAndFolder& m2)
{
return m1.first.compareIgnoreCase (m2.first) < 0;
});
}
//==============================================================================
struct ModuleScannerJob : public ThreadPoolJob
{
ModuleScannerJob (const Array<File>& paths, std::function<void (const ModuleIDAndFolderList&)>&& callback)
: ThreadPoolJob ("ModuleScannerJob"),
pathsToScan (paths),
completionCallback (std::move (callback))
{
}
JobStatus runJob() override
{
ModuleIDAndFolderList list;
for (auto& p : pathsToScan)
addAllModulesInFolder (p, list);
if (! shouldExit())
{
sort (list);
completionCallback (list);
}
return jobHasFinished;
}
Array<File> pathsToScan;
std::function<void (const ModuleIDAndFolderList&)> completionCallback;
};
AvailableModuleList::AvailableModuleList()
{
}
ThreadPoolJob* AvailableModuleList::createScannerJob (const Array<File>& paths)
{
return new ModuleScannerJob (paths, [this] (ModuleIDAndFolderList scannedModuleList)
{
{
const ScopedLock swapLock (lock);
moduleList.swap (scannedModuleList);
}
listeners.call ([] (Listener& l) { MessageManager::callAsync ([&] { l.availableModulesChanged(); }); });
});
}
void AvailableModuleList::removePendingAndAddJob (ThreadPoolJob* jobToAdd)
{
scanPool.removeAllJobs (false, 100);
scanPool.addJob (jobToAdd, true);
}
void AvailableModuleList::scanPaths (const Array<File>& paths)
{
auto* job = createScannerJob (paths);
removePendingAndAddJob (job);
scanPool.waitForJobToFinish (job, -1);
}
void AvailableModuleList::scanPathsAsync (const Array<File>& paths)
{
removePendingAndAddJob (createScannerJob (paths));
}
ModuleIDAndFolderList AvailableModuleList::getAllModules() const
{
const ScopedLock readLock (lock);
return moduleList;
}
ModuleIDAndFolder AvailableModuleList::getModuleWithID (const String& id) const
{
const ScopedLock readLock (lock);
for (auto& mod : moduleList)
if (mod.first == id)
return mod;
return {};
}
void AvailableModuleList::removeDuplicates (const ModuleIDAndFolderList& other)
{
const ScopedLock readLock (lock);
for (auto& m : other)
{
auto pos = std::find (moduleList.begin(), moduleList.end(), m);
if (pos != moduleList.end())
moduleList.erase (pos);
}
}
//==============================================================================
LibraryModule::LibraryModule (const ModuleDescription& d)
: moduleInfo (d)
{
}
//==============================================================================
void LibraryModule::writeIncludes (ProjectSaver& projectSaver, OutputStream& out)
{
auto& project = projectSaver.project;
auto& modules = project.getEnabledModules();
auto id = getID();
if (modules.shouldCopyModuleFilesLocally (id).getValue())
{
auto juceModuleFolder = moduleInfo.getFolder();
auto localModuleFolder = project.getLocalModuleFolder (id);
localModuleFolder.createDirectory();
projectSaver.copyFolder (juceModuleFolder, localModuleFolder);
}
out << "#include <" << moduleInfo.moduleFolder.getFileName() << "/"
<< moduleInfo.getHeader().getFileName()
<< ">" << newLine;
}
//==============================================================================
static void parseAndAddLibs (StringArray& libList, const String& libs)
{
libList.addTokens (libs, ", ", {});
libList.trim();
libList.removeDuplicates (false);
}
void LibraryModule::addSettingsForModuleToExporter (ProjectExporter& exporter, ProjectSaver& projectSaver) const
{
auto& project = exporter.getProject();
auto moduleRelativePath = exporter.getModuleFolderRelativeToProject (getID());
exporter.addToExtraSearchPaths (moduleRelativePath.getParentDirectory());
String libDirPlatform;
if (exporter.isLinux())
libDirPlatform = "Linux";
else if (exporter.isCodeBlocks() && exporter.isWindows())
libDirPlatform = "MinGW";
else
libDirPlatform = exporter.getTargetFolder().getFileName();
auto libSubdirPath = moduleRelativePath.toUnixStyle() + "/libs/" + libDirPlatform;
auto moduleLibDir = File (project.getProjectFolder().getFullPathName() + "/" + libSubdirPath);
if (moduleLibDir.exists())
exporter.addToModuleLibPaths ({ libSubdirPath, moduleRelativePath.getRoot() });
auto extraInternalSearchPaths = moduleInfo.getExtraSearchPaths().trim();
if (extraInternalSearchPaths.isNotEmpty())
{
auto paths = StringArray::fromTokens (extraInternalSearchPaths, true);
for (auto& path : paths)
exporter.addToExtraSearchPaths (moduleRelativePath.getChildFile (path.unquoted()));
}
{
auto extraDefs = moduleInfo.getPreprocessorDefs().trim();
if (extraDefs.isNotEmpty())
exporter.getExporterPreprocessorDefsValue() = exporter.getExporterPreprocessorDefsString() + "\n" + extraDefs;
}
{
Array<File> compiled;
auto& modules = project.getEnabledModules();
auto id = getID();
auto localModuleFolder = modules.shouldCopyModuleFilesLocally (id).getValue() ? project.getLocalModuleFolder (id)
: moduleInfo.getFolder();
findAndAddCompiledUnits (exporter, &projectSaver, compiled);
if (modules.shouldShowAllModuleFilesInProject (id).getValue())
addBrowseableCode (exporter, compiled, localModuleFolder);
}
if (exporter.isXcode())
{
auto& xcodeExporter = dynamic_cast<XcodeProjectExporter&> (exporter);
if (project.isAUPluginHost())
xcodeExporter.xcodeFrameworks.addTokens (xcodeExporter.isOSX() ? "AudioUnit CoreAudioKit" : "CoreAudioKit", false);
auto frameworks = moduleInfo.moduleInfo [xcodeExporter.isOSX() ? "OSXFrameworks" : "iOSFrameworks"].toString();
xcodeExporter.xcodeFrameworks.addTokens (frameworks, ", ", {});
parseAndAddLibs (xcodeExporter.xcodeLibs, moduleInfo.moduleInfo [exporter.isOSX() ? "OSXLibs" : "iOSLibs"].toString());
}
else if (exporter.isLinux())
{
parseAndAddLibs (exporter.linuxLibs, moduleInfo.moduleInfo ["linuxLibs"].toString());
parseAndAddLibs (exporter.linuxPackages, moduleInfo.moduleInfo ["linuxPackages"].toString());
}
else if (exporter.isWindows())
{
if (exporter.isCodeBlocks())
parseAndAddLibs (exporter.mingwLibs, moduleInfo.moduleInfo ["mingwLibs"].toString());
else
parseAndAddLibs (exporter.windowsLibs, moduleInfo.moduleInfo ["windowsLibs"].toString());
}
else if (exporter.isAndroid())
{
parseAndAddLibs (exporter.androidLibs, moduleInfo.moduleInfo ["androidLibs"].toString());
}
}
void LibraryModule::getConfigFlags (Project& project, OwnedArray<Project::ConfigFlag>& flags) const
{
auto header = moduleInfo.getHeader();
jassert (header.exists());
StringArray lines;
header.readLines (lines);
for (int i = 0; i < lines.size(); ++i)
{
auto line = lines[i].trim();
if (line.startsWith ("/**") && line.containsIgnoreCase ("Config:"))
{
auto config = std::make_unique<Project::ConfigFlag>();
config->sourceModuleID = getID();
config->symbol = line.fromFirstOccurrenceOf (":", false, false).trim();
if (config->symbol.length() > 2)
{
++i;
while (! (lines[i].contains ("*/") || lines[i].contains ("@see")))
{
if (lines[i].trim().isNotEmpty())
config->description = config->description.trim() + " " + lines[i].trim();
++i;
}
config->description = config->description.upToFirstOccurrenceOf ("*/", false, false);
config->value = project.getConfigFlag (config->symbol);
i += 2;
if (lines[i].contains ("#define " + config->symbol))
{
auto value = lines[i].fromFirstOccurrenceOf ("#define " + config->symbol, false, true).trim();
config->value.setDefault (value == "0" ? false : true);
}
auto currentValue = config->value.get().toString();
if (currentValue == "enabled") config->value = true;
else if (currentValue == "disabled") config->value = false;
flags.add (std::move (config));
}
}
}
}
//==============================================================================
struct FileSorter
{
static int compareElements (const File& f1, const File& f2)
{
return f1.getFileName().compareNatural (f2.getFileName());
}
};
bool LibraryModule::CompileUnit::hasSuffix (const File& f, const char* suffix)
{
auto fileWithoutSuffix = f.getFileNameWithoutExtension() + ".";
return fileWithoutSuffix.containsIgnoreCase (suffix + String ("."))
|| fileWithoutSuffix.containsIgnoreCase (suffix + String ("_"));
}
void LibraryModule::CompileUnit::writeInclude (MemoryOutputStream&) const
{
}
bool LibraryModule::CompileUnit::isNeededForExporter (ProjectExporter& exporter) const
{
if ((hasSuffix (file, "_OSX") && ! exporter.isOSX())
|| (hasSuffix (file, "_iOS") && ! exporter.isiOS())
|| (hasSuffix (file, "_Windows") && ! exporter.isWindows())
|| (hasSuffix (file, "_Linux") && ! exporter.isLinux())
|| (hasSuffix (file, "_Android") && ! exporter.isAndroid()))
return false;
auto targetType = Project::getTargetTypeFromFilePath (file, false);
if (targetType != ProjectType::Target::unspecified && ! exporter.shouldBuildTargetType (targetType))
return false;
return exporter.usesMMFiles() ? isCompiledForObjC
: isCompiledForNonObjC;
}
String LibraryModule::CompileUnit::getFilenameForProxyFile() const
{
return "include_" + file.getFileName();
}
Array<LibraryModule::CompileUnit> LibraryModule::getAllCompileUnits (ProjectType::Target::Type forTarget) const
{
auto files = getFolder().findChildFiles (File::findFiles, false);
FileSorter sorter;
files.sort (sorter);
Array<LibraryModule::CompileUnit> units;
for (auto& file : files)
{
if (file.getFileName().startsWithIgnoreCase (getID())
&& file.hasFileExtension (sourceFileExtensions))
{
if (forTarget == ProjectType::Target::unspecified
|| forTarget == Project::getTargetTypeFromFilePath (file, true))
{
CompileUnit cu;
cu.file = file;
units.add (cu);
}
}
}
for (auto& cu : units)
{
cu.isCompiledForObjC = true;
cu.isCompiledForNonObjC = ! cu.file.hasFileExtension ("mm;m");
if (cu.isCompiledForNonObjC)
if (files.contains (cu.file.withFileExtension ("mm")))
cu.isCompiledForObjC = false;
jassert (cu.isCompiledForObjC || cu.isCompiledForNonObjC);
}
return units;
}
void LibraryModule::findAndAddCompiledUnits (ProjectExporter& exporter,
ProjectSaver* projectSaver,
Array<File>& result,
ProjectType::Target::Type forTarget) const
{
for (auto& cu : getAllCompileUnits (forTarget))
{
if (cu.isNeededForExporter (exporter))
{
auto localFile = exporter.getProject().getGeneratedCodeFolder()
.getChildFile (cu.getFilenameForProxyFile());
result.add (localFile);
if (projectSaver != nullptr)
projectSaver->addFileToGeneratedGroup (localFile);
}
}
}
static void addFileWithGroups (Project::Item& group, const RelativePath& file, const String& path)
{
auto slash = path.indexOfChar (File::getSeparatorChar());
if (slash >= 0)
{
auto topLevelGroup = path.substring (0, slash);
auto remainingPath = path.substring (slash + 1);
auto newGroup = group.getOrCreateSubGroup (topLevelGroup);
addFileWithGroups (newGroup, file, remainingPath);
}
else
{
if (! group.containsChildForFile (file))
group.addRelativeFile (file, -1, false);
}
}
void LibraryModule::findBrowseableFiles (const File& folder, Array<File>& filesFound) const
{
Array<File> tempList;
FileSorter sorter;
DirectoryIterator iter (folder, true, "*", File::findFiles);
bool isHiddenFile;
while (iter.next (nullptr, &isHiddenFile, nullptr, nullptr, nullptr, nullptr))
if (! isHiddenFile && iter.getFile().hasFileExtension (browseableFileExtensions))
tempList.addSorted (sorter, iter.getFile());
filesFound.addArray (tempList);
}
void LibraryModule::addBrowseableCode (ProjectExporter& exporter, const Array<File>& compiled, const File& localModuleFolder) const
{
if (sourceFiles.isEmpty())
findBrowseableFiles (localModuleFolder, sourceFiles);
auto sourceGroup = Project::Item::createGroup (exporter.getProject(), getID(), "__mainsourcegroup" + getID(), false);
auto moduleFromProject = exporter.getModuleFolderRelativeToProject (getID());
auto moduleHeader = moduleInfo.getHeader();
auto& project = exporter.getProject();
if (project.getEnabledModules().shouldCopyModuleFilesLocally (getID()).getValue())
moduleHeader = project.getLocalModuleFolder (getID()).getChildFile (moduleHeader.getFileName());
auto isModuleHeader = [&] (const File& f) { return f.getFileName() == moduleHeader.getFileName(); };
for (auto& sourceFile : sourceFiles)
{
auto pathWithinModule = FileHelpers::getRelativePathFrom (sourceFile, localModuleFolder);
// (Note: in exporters like MSVC we have to avoid adding the same file twice, even if one of those instances
// is flagged as being excluded from the build, because this overrides the other and it fails to compile)
if ((exporter.canCopeWithDuplicateFiles() || ! compiled.contains (sourceFile)) && ! isModuleHeader (sourceFile))
addFileWithGroups (sourceGroup, moduleFromProject.getChildFile (pathWithinModule), pathWithinModule);
}
sourceGroup.sortAlphabetically (true, true);
sourceGroup.addFileAtIndex (moduleHeader, -1, false);
exporter.getModulesGroup().state.appendChild (sourceGroup.state.createCopy(), nullptr);
}
//==============================================================================
EnabledModuleList::EnabledModuleList (Project& p, const ValueTree& s)
: project (p), state (s)
{
}
ModuleDescription EnabledModuleList::getModuleInfo (const String& moduleID)
{
return ModuleDescription (project.getModuleWithID (moduleID).second);
}
bool EnabledModuleList::isModuleEnabled (const String& moduleID) const
{
return state.getChildWithProperty (Ids::ID, moduleID).isValid();
}
bool EnabledModuleList::isAudioPluginModuleMissing() const
{
return project.getProjectType().isAudioPlugin()
&& ! isModuleEnabled ("juce_audio_plugin_client");
}
bool EnabledModuleList::shouldUseGlobalPath (const String& moduleID) const
{
return static_cast<bool> (state.getChildWithProperty (Ids::ID, moduleID)
.getProperty (Ids::useGlobalPath));
}
Value EnabledModuleList::getShouldUseGlobalPathValue (const String& moduleID) const
{
return state.getChildWithProperty (Ids::ID, moduleID)
.getPropertyAsValue (Ids::useGlobalPath, getUndoManager());
}
Value EnabledModuleList::shouldShowAllModuleFilesInProject (const String& moduleID)
{
return state.getChildWithProperty (Ids::ID, moduleID)
.getPropertyAsValue (Ids::showAllCode, getUndoManager());
}
struct ModuleTreeSorter
{
static int compareElements (const ValueTree& m1, const ValueTree& m2)
{
return m1[Ids::ID].toString().compareIgnoreCase (m2[Ids::ID]);
}
};
void EnabledModuleList::sortAlphabetically()
{
ModuleTreeSorter sorter;
state.sort (sorter, getUndoManager(), false);
}
Value EnabledModuleList::shouldCopyModuleFilesLocally (const String& moduleID) const
{
return state.getChildWithProperty (Ids::ID, moduleID)
.getPropertyAsValue (Ids::useLocalCopy, getUndoManager());
}
void EnabledModuleList::addModule (const File& moduleFolder, bool copyLocally, bool useGlobalPath, bool sendAnalyticsEvent)
{
ModuleDescription info (moduleFolder);
if (info.isValid())
{
auto moduleID = info.getID();
if (! isModuleEnabled (moduleID))
{
ValueTree module (Ids::MODULE);
module.setProperty (Ids::ID, moduleID, getUndoManager());
state.appendChild (module, getUndoManager());
sortAlphabetically();
shouldShowAllModuleFilesInProject (moduleID) = true;
shouldCopyModuleFilesLocally (moduleID) = copyLocally;
getShouldUseGlobalPathValue (moduleID) = useGlobalPath;
RelativePath path (moduleFolder.getParentDirectory(),
project.getProjectFolder(), RelativePath::projectFolder);
for (Project::ExporterIterator exporter (project); exporter.next();)
exporter->getPathForModuleValue (moduleID) = path.toUnixStyle();
if (! useGlobalPath)
project.rescanExporterPathModules (false);
if (sendAnalyticsEvent)
{
StringPairArray data;
data.set ("label", moduleID);
Analytics::getInstance()->logEvent ("Module Added", data, ProjucerAnalyticsEvent::projectEvent);
}
}
}
}
void EnabledModuleList::removeModule (String moduleID) // must be pass-by-value, and not a const ref!
{
for (auto i = state.getNumChildren(); --i >= 0;)
if (state.getChild(i) [Ids::ID] == moduleID)
state.removeChild (i, getUndoManager());
for (Project::ExporterIterator exporter (project); exporter.next();)
exporter->removePathForModule (moduleID);
}
void EnabledModuleList::createRequiredModules (OwnedArray<LibraryModule>& modules)
{
for (int i = 0; i < getNumModules(); ++i)
modules.add (new LibraryModule (getModuleInfo (getModuleID (i))));
}
StringArray EnabledModuleList::getAllModules() const
{
StringArray moduleIDs;
for (int i = 0; i < getNumModules(); ++i)
moduleIDs.add (getModuleID (i));
return moduleIDs;
}
static void getDependencies (Project& project, const String& moduleID, StringArray& dependencies)
{
auto info = project.getEnabledModules().getModuleInfo (moduleID);
for (auto uid : info.getDependencies())
{
if (! dependencies.contains (uid, true))
{
dependencies.add (uid);
getDependencies (project, uid, dependencies);
}
}
}
StringArray EnabledModuleList::getExtraDependenciesNeeded (const String& moduleID) const
{
StringArray dependencies, extraDepsNeeded;
getDependencies (project, moduleID, dependencies);
for (auto dep : dependencies)
if (dep != moduleID && ! isModuleEnabled (dep))
extraDepsNeeded.add (dep);
return extraDepsNeeded;
}
bool EnabledModuleList::doesModuleHaveHigherCppStandardThanProject (const String& moduleID)
{
auto projectCppStandard = project.getCppStandardString();
if (projectCppStandard == "latest")
return false;
auto moduleCppStandard = getModuleInfo (moduleID).getMinimumCppStandard();
return (moduleCppStandard.getIntValue() > projectCppStandard.getIntValue());
}
bool EnabledModuleList::areMostModulesUsingGlobalPath() const
{
int numYes = 0, numNo = 0;
for (auto i = getNumModules(); --i >= 0;)
{
if (shouldUseGlobalPath (getModuleID (i)))
++numYes;
else
++numNo;
}
return numYes > numNo;
}
bool EnabledModuleList::areMostModulesCopiedLocally() const
{
int numYes = 0, numNo = 0;
for (auto i = getNumModules(); --i >= 0;)
{
if (shouldCopyModuleFilesLocally (getModuleID (i)).getValue())
++numYes;
else
++numNo;
}
return numYes > numNo;
}
void EnabledModuleList::setLocalCopyModeForAllModules (bool copyLocally)
{
for (auto i = getNumModules(); --i >= 0;)
shouldCopyModuleFilesLocally (project.getEnabledModules().getModuleID (i)) = copyLocally;
}
File EnabledModuleList::findDefaultModulesFolder (Project& project)
{
File globalPath (getAppSettings().getStoredPath (Ids::defaultJuceModulePath, TargetOS::getThisOS()).get().toString());
if (globalPath.exists())
return globalPath;
for (auto& exporterPathModule : project.getExporterPathsModuleList().getAllModules())
{
auto f = exporterPathModule.second;
if (f.isDirectory())
return f.getParentDirectory();
}
return File::getCurrentWorkingDirectory();
}
void EnabledModuleList::addModuleFromUserSelectedFile()
{
static auto lastLocation = findDefaultModulesFolder (project);
FileChooser fc ("Select a module to add...", lastLocation, {});
if (fc.browseForDirectory())
{
lastLocation = fc.getResult();
addModuleOfferingToCopy (lastLocation, true);
}
}
void EnabledModuleList::addModuleInteractive (const String& moduleID)
{
auto f = project.getModuleWithID (moduleID).second;
if (f != File())
{
addModule (f, areMostModulesCopiedLocally(), areMostModulesUsingGlobalPath(), true);
return;
}
addModuleFromUserSelectedFile();
}
void EnabledModuleList::addModuleOfferingToCopy (const File& f, bool isFromUserSpecifiedFolder)
{
ModuleDescription m (f);
if (! m.isValid())
{
AlertWindow::showMessageBoxAsync (AlertWindow::InfoIcon,
"Add Module", "This wasn't a valid module folder!");
return;
}
if (isModuleEnabled (m.getID()))
{
AlertWindow::showMessageBoxAsync (AlertWindow::InfoIcon,
"Add Module", "The project already contains this module!");
return;
}
addModule (m.moduleFolder, areMostModulesCopiedLocally(),
isFromUserSpecifiedFolder ? false : areMostModulesUsingGlobalPath(),
true);
}
bool isJUCEFolder (const File& f)
{
return isJUCEModulesFolder (f.getChildFile ("modules"));
}
bool isJUCEModulesFolder (const File& f)
{
return f.isDirectory() && f.getChildFile ("juce_core").isDirectory();
}