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Massively speed up CMakeProject::buildTree

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This is done by updating folders once and not per file.

Task-number: QTCREATORBUG-16930
Change-Id: I6c1959031e7ad774cfd22c7364c88e1d0bd32962
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
This commit is contained in:
Florian Apolloner
2016-09-23 10:48:02 +02:00
parent 1da05949e9
commit 669d04a686
1 changed files with 13 additions and 4 deletions
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17
src/plugins/cmakeprojectmanager/cmakeproject.cpp
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@@ -444,18 +444,27 @@ void CMakeProject::buildTree(CMakeProjectNode *rootNode, QList<ProjectExplorer::
qDeleteAll(ProjectExplorer::subtractSortedList(newList, added, sortNodesByPath));
QHash<ProjectExplorer::FolderNode *, QList<ProjectExplorer::FileNode *> > addedFolderMapping;
QHash<ProjectExplorer::FolderNode *, QList<ProjectExplorer::FileNode *> > deletedFolderMapping;
// add added nodes
foreach (ProjectExplorer::FileNode *fn, added) {
// Get relative path to rootNode
QString parentDir = fn->filePath().toFileInfo().absolutePath();
ProjectExplorer::FolderNode *folder = findOrCreateFolder(rootNode, parentDir);
folder->addFileNodes(QList<ProjectExplorer::FileNode *>()<< fn);
addedFolderMapping[folder] << fn;
}
for (auto i = addedFolderMapping.constBegin(); i != addedFolderMapping.constEnd(); ++i)
i.key()->addFileNodes(i.value());
// remove old file nodes and check whether folder nodes can be removed
foreach (ProjectExplorer::FileNode *fn, deleted) {
ProjectExplorer::FolderNode *parent = fn->parentFolderNode();
parent->removeFileNodes(QList<ProjectExplorer::FileNode *>() << fn);
foreach (ProjectExplorer::FileNode *fn, deleted)
deletedFolderMapping[fn->parentFolderNode()] << fn;
for (auto i = deletedFolderMapping.constBegin(); i != deletedFolderMapping.constEnd(); ++i) {
ProjectExplorer::FolderNode *parent = i.key();
parent->removeFileNodes(i.value());
// Check for empty parent
while (parent->subFolderNodes().isEmpty() && parent->fileNodes().isEmpty()) {
ProjectExplorer::FolderNode *grandparent = parent->parentFolderNode();