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Ensure that input is a directory

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This commit is contained in:
Marcus Holland-Moritz 2020-11-25 15:28:53 +01:00
parent 0b58eab1e6
commit 0baa67c94b
1 changed files with 10 additions and 0 deletions
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10
src/dwarfs/scanner.cpp
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@ -291,11 +291,21 @@ void scanner_<LoggerPolicy>::scan(filesystem_writer& fsw,
log_.info() << "scanning " << path; log_.info() << "scanning " << path;
auto root = entry_->create(*os_, path); auto root = entry_->create(*os_, path);
if (root->type() != entry::E_DIR) {
throw std::runtime_error(path + " must be a directory");
}
std::deque<std::shared_ptr<entry>> queue({root}); std::deque<std::shared_ptr<entry>> queue({root});
prog.dirs_found++; prog.dirs_found++;
while (!queue.empty()) { while (!queue.empty()) {
auto parent = std::dynamic_pointer_cast<dir>(queue.front()); auto parent = std::dynamic_pointer_cast<dir>(queue.front());
if (!parent) {
throw std::runtime_error("expected directory");
}
queue.pop_front(); queue.pop_front();
const std::string& path = parent->path(); const std::string& path = parent->path();