mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
128 lines
4.1 KiB
C++
128 lines
4.1 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "flutter/fml/file.h"
|
|
|
|
#include "flutter/fml/logging.h"
|
|
#include "flutter/fml/unique_fd.h"
|
|
|
|
namespace fml {
|
|
|
|
static fml::UniqueFD CreateDirectory(const fml::UniqueFD& base_directory,
|
|
const std::vector<std::string>& components,
|
|
FilePermission permission,
|
|
size_t index) {
|
|
FML_DCHECK(index <= components.size());
|
|
|
|
const char* file_path = components[index].c_str();
|
|
|
|
auto directory = OpenDirectory(base_directory, file_path, true, permission);
|
|
|
|
if (!directory.is_valid()) {
|
|
return {};
|
|
}
|
|
|
|
if (index == components.size() - 1) {
|
|
return directory;
|
|
}
|
|
|
|
return CreateDirectory(directory, components, permission, index + 1);
|
|
}
|
|
|
|
fml::UniqueFD CreateDirectory(const fml::UniqueFD& base_directory,
|
|
const std::vector<std::string>& components,
|
|
FilePermission permission) {
|
|
if (!IsDirectory(base_directory)) {
|
|
return {};
|
|
}
|
|
|
|
if (components.empty()) {
|
|
return {};
|
|
}
|
|
|
|
return CreateDirectory(base_directory, components, permission, 0);
|
|
}
|
|
|
|
ScopedTemporaryDirectory::ScopedTemporaryDirectory()
|
|
: path_(CreateTemporaryDirectory()) {
|
|
if (path_ != "") {
|
|
dir_fd_ = OpenDirectory(path_.c_str(), false, FilePermission::kRead);
|
|
}
|
|
}
|
|
|
|
ScopedTemporaryDirectory::~ScopedTemporaryDirectory() {
|
|
// POSIX requires the directory to be empty before UnlinkDirectory.
|
|
if (path_ != "") {
|
|
if (!RemoveFilesInDirectory(dir_fd_)) {
|
|
FML_LOG(ERROR) << "Could not clean directory: " << path_;
|
|
}
|
|
}
|
|
|
|
// Windows has to close UniqueFD first before UnlinkDirectory
|
|
dir_fd_.reset();
|
|
if (path_ != "") {
|
|
if (!UnlinkDirectory(path_.c_str())) {
|
|
FML_LOG(ERROR) << "Could not remove directory: " << path_;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool VisitFilesRecursively(const fml::UniqueFD& directory,
|
|
const FileVisitor& visitor) {
|
|
FileVisitor recursive_visitor = [&recursive_visitor, &visitor](
|
|
const UniqueFD& directory,
|
|
const std::string& filename) {
|
|
if (!visitor(directory, filename)) {
|
|
return false;
|
|
}
|
|
if (IsDirectory(directory, filename.c_str())) {
|
|
UniqueFD sub_dir = OpenDirectoryReadOnly(directory, filename.c_str());
|
|
if (!sub_dir.is_valid()) {
|
|
FML_LOG(ERROR) << "Can't open sub-directory: " << filename;
|
|
return true;
|
|
}
|
|
return VisitFiles(sub_dir, recursive_visitor);
|
|
}
|
|
return true;
|
|
};
|
|
return VisitFiles(directory, recursive_visitor);
|
|
}
|
|
|
|
fml::UniqueFD OpenFileReadOnly(const fml::UniqueFD& base_directory,
|
|
const char* path) {
|
|
return OpenFile(base_directory, path, false, FilePermission::kRead);
|
|
}
|
|
|
|
fml::UniqueFD OpenDirectoryReadOnly(const fml::UniqueFD& base_directory,
|
|
const char* path) {
|
|
return OpenDirectory(base_directory, path, false, FilePermission::kRead);
|
|
}
|
|
|
|
bool RemoveFilesInDirectory(const fml::UniqueFD& directory) {
|
|
fml::FileVisitor recursive_cleanup = [&recursive_cleanup](
|
|
const fml::UniqueFD& directory,
|
|
const std::string& filename) {
|
|
bool removed;
|
|
if (fml::IsDirectory(directory, filename.c_str())) {
|
|
fml::UniqueFD sub_dir =
|
|
OpenDirectoryReadOnly(directory, filename.c_str());
|
|
removed = VisitFiles(sub_dir, recursive_cleanup) &&
|
|
fml::UnlinkDirectory(directory, filename.c_str());
|
|
} else {
|
|
removed = fml::UnlinkFile(directory, filename.c_str());
|
|
}
|
|
return removed;
|
|
};
|
|
return VisitFiles(directory, recursive_cleanup);
|
|
}
|
|
|
|
bool RemoveDirectoryRecursively(const fml::UniqueFD& parent,
|
|
const char* directory_name) {
|
|
auto dir = fml::OpenDirectory(parent, directory_name, false,
|
|
fml::FilePermission::kReadWrite);
|
|
return RemoveFilesInDirectory(dir) && UnlinkDirectory(parent, directory_name);
|
|
}
|
|
|
|
} // namespace fml
|