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// Copyright 2017 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <memory>
#include <sstream>
#include <string>
#include "src/main/native/jni.h"
#include "src/main/native/windows/file.h"
#include "src/main/native/windows/jni-util.h"
#include "src/main/native/windows/util.h"
static bool CanReportError(JNIEnv* env, jobjectArray error_msg_holder) {
return error_msg_holder != nullptr &&
env->GetArrayLength(error_msg_holder) > 0;
}
static void ReportLastError(const std::wstring& error_str, JNIEnv* env,
jobjectArray error_msg_holder) {
jstring error_msg = env->NewString(
reinterpret_cast<const jchar*>(error_str.c_str()), error_str.size());
env->SetObjectArrayElement(error_msg_holder, 0, error_msg);
}
extern "C" JNIEXPORT jint JNICALL
Java_com_google_devtools_build_lib_windows_jni_WindowsFileOperations_nativeIsJunction(
JNIEnv* env, jclass clazz, jstring path, jobjectArray error_msg_holder) {
std::wstring wpath(bazel::windows::GetJavaWstring(env, path));
int result = bazel::windows::IsJunctionOrDirectorySymlink(wpath.c_str());
if (result == bazel::windows::IS_JUNCTION_ERROR &&
CanReportError(env, error_msg_holder)) {
DWORD err_code = GetLastError();
ReportLastError(
bazel::windows::MakeErrorMessage(WSTR(__FILE__), __LINE__,
L"nativeIsJunction", wpath, err_code),
env, error_msg_holder);
}
return result;
}
extern "C" JNIEXPORT jboolean JNICALL
Java_com_google_devtools_build_lib_windows_jni_WindowsFileOperations_nativeGetLongPath(
JNIEnv* env, jclass clazz, jstring path, jobjectArray result_holder,
jobjectArray error_msg_holder) {
std::unique_ptr<WCHAR[]> result;
std::wstring wpath(bazel::windows::GetJavaWstring(env, path));
std::wstring error(bazel::windows::GetLongPath(wpath.c_str(), &result));
if (!error.empty() && CanReportError(env, error_msg_holder)) {
ReportLastError(
bazel::windows::MakeErrorMessage(WSTR(__FILE__), __LINE__,
L"nativeGetLongPath", wpath, error),
env, error_msg_holder);
return JNI_FALSE;
}
env->SetObjectArrayElement(
result_holder, 0,
env->NewString(reinterpret_cast<const jchar*>(result.get()),
wcslen(result.get())));
return JNI_TRUE;
}
extern "C" JNIEXPORT jint JNICALL
Java_com_google_devtools_build_lib_windows_jni_WindowsFileOperations_nativeCreateJunction(
JNIEnv* env, jclass clazz, jstring name, jstring target,
jobjectArray error_msg_holder) {
std::wstring wname(bazel::windows::GetJavaWstring(env, name));
std::wstring wtarget(bazel::windows::GetJavaWstring(env, target));
std::wstring error;
int result = bazel::windows::CreateJunction(wname, wtarget, &error);
if (result != bazel::windows::CreateJunctionResult::kSuccess &&
!error.empty() && CanReportError(env, error_msg_holder)) {
ReportLastError(bazel::windows::MakeErrorMessage(
WSTR(__FILE__), __LINE__, L"nativeCreateJunction",
wname + L", " + wtarget, error),
env, error_msg_holder);
}
return result;
}
extern "C" JNIEXPORT jint JNICALL
Java_com_google_devtools_build_lib_windows_jni_WindowsFileOperations_nativeDeletePath(
JNIEnv* env, jclass clazz, jstring path, jobjectArray error_msg_holder) {
std::wstring wpath(bazel::windows::GetJavaWstring(env, path));
std::wstring error;
int result = bazel::windows::DeletePath(wpath, &error);
if (result != bazel::windows::DELETE_PATH_SUCCESS && !error.empty() &&
CanReportError(env, error_msg_holder)) {
ReportLastError(
bazel::windows::MakeErrorMessage(WSTR(__FILE__), __LINE__,
L"nativeDeletePath", wpath, error),
env, error_msg_holder);
}
return result;
}
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