void Path::visit(VisitCallback callback, void *userData) const
{
if (!callback || !isDir())
return;
Set<Path> seenDirs;
visitorWrapper(*this, callback, seenDirs, userData);
}
void Path::visit(const std::function<VisitResult(const Path &path)> &callback) const
{
if (!callback || !isDir())
return;
Set<Path> seenDirs;
visitorWrapper(*this, callback, seenDirs);
}
static void visitorWrapper(Path path, Path::VisitCallback callback, Set<Path> &seen, void *userData)
{
if (!seen.insert(path.resolved())) {
return;
}
DIR *d = opendir(path.constData());
if (!d)
return;
char buf[PATH_MAX + sizeof(dirent) + 1];
dirent *dbuf = reinterpret_cast<dirent*>(buf);
dirent *p;
if (!path.endsWith('/'))
path.append('/');
const int s = path.size();
path.reserve(s + 128);
List<String> recurseDirs;
while (!readdir_r(d, dbuf, &p) && p) {
if (!strcmp(p->d_name, ".") || !strcmp(p->d_name, ".."))
continue;
path.truncate(s);
path.append(p->d_name);
#if defined(_DIRENT_HAVE_D_TYPE) && defined(_BSD_SOURCE)
if (p->d_type == DT_DIR)
path.append('/');
#else
if (path.isDir())
path.append('/');
#endif
switch (callback(path, userData)) {
case Path::Abort:
p = 0;
break;
case Path::Recurse:
if (path.isDir())
recurseDirs.append(p->d_name);
break;
case Path::Continue:
break;
}
}
closedir(d);
const int count = recurseDirs.size();
for (int i=0; i<count; ++i) {
path.truncate(s);
path.append(recurseDirs.at(i));
visitorWrapper(path, callback, seen, userData);
}
}