@NotNull
private DirectoryInfo cacheInfos(
VirtualFile dir, @Nullable VirtualFile stopAt, @NotNull DirectoryInfo info) {
while (dir != null) {
myInfoCache.cacheInfo(dir, info);
if (dir.equals(stopAt)) {
break;
}
dir = dir.getParent();
}
return info;
}
@NotNull
public DirectoryInfo getInfoForFile(@NotNull VirtualFile file) {
if (!file.isValid()) {
return NonProjectDirectoryInfo.INVALID;
}
VirtualFile dir;
if (!file.isDirectory()) {
DirectoryInfo info = myInfoCache.getCachedInfo(file);
if (info != null) {
return info;
}
if (isIgnored(file)) {
return NonProjectDirectoryInfo.IGNORED;
}
dir = file.getParent();
} else {
dir = file;
}
int count = 0;
for (VirtualFile root = dir; root != null; root = root.getParent()) {
if (++count > 1000) {
throw new IllegalStateException("Possible loop in tree, started at " + dir.getName());
}
DirectoryInfo info = myInfoCache.getCachedInfo(root);
if (info != null) {
if (!dir.equals(root)) {
cacheInfos(dir, root, info);
}
return info;
}
if (isIgnored(root)) {
return cacheInfos(dir, root, NonProjectDirectoryInfo.IGNORED);
}
}
return cacheInfos(dir, null, NonProjectDirectoryInfo.NOT_UNDER_PROJECT_ROOTS);
}