You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
130 lines
3.0 KiB
130 lines
3.0 KiB
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
file Copyright.txt or https://cmake.org/licensing for details. */
|
|
#include "cmFileTimes.h"
|
|
|
|
#include <utility>
|
|
|
|
#include <cm/memory>
|
|
|
|
#include "cm_sys_stat.h"
|
|
|
|
#if defined(_WIN32)
|
|
# include <windows.h>
|
|
|
|
# include "cmSystemTools.h"
|
|
#else
|
|
# include <utime.h>
|
|
#endif
|
|
|
|
#if defined(_WIN32) && \
|
|
(defined(_MSC_VER) || defined(__WATCOMC__) || defined(__MINGW32__))
|
|
# include <io.h>
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
class cmFileTimes::WindowsHandle
|
|
{
|
|
public:
|
|
WindowsHandle(HANDLE h)
|
|
: handle_(h)
|
|
{
|
|
}
|
|
~WindowsHandle()
|
|
{
|
|
if (this->handle_ != INVALID_HANDLE_VALUE) {
|
|
CloseHandle(this->handle_);
|
|
}
|
|
}
|
|
explicit operator bool() const
|
|
{
|
|
return this->handle_ != INVALID_HANDLE_VALUE;
|
|
}
|
|
bool operator!() const { return this->handle_ == INVALID_HANDLE_VALUE; }
|
|
operator HANDLE() const { return this->handle_; }
|
|
|
|
private:
|
|
HANDLE handle_;
|
|
};
|
|
#endif
|
|
|
|
class cmFileTimes::Times
|
|
{
|
|
public:
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
FILETIME timeCreation;
|
|
FILETIME timeLastAccess;
|
|
FILETIME timeLastWrite;
|
|
#else
|
|
struct utimbuf timeBuf;
|
|
#endif
|
|
};
|
|
|
|
cmFileTimes::cmFileTimes() = default;
|
|
cmFileTimes::cmFileTimes(std::string const& fileName)
|
|
{
|
|
Load(fileName);
|
|
}
|
|
cmFileTimes::~cmFileTimes() = default;
|
|
|
|
bool cmFileTimes::Load(std::string const& fileName)
|
|
{
|
|
std::unique_ptr<Times> ptr;
|
|
if (IsValid()) {
|
|
// Invalidate this and re-use times
|
|
ptr.swap(this->times);
|
|
} else {
|
|
ptr = cm::make_unique<Times>();
|
|
}
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
cmFileTimes::WindowsHandle handle =
|
|
CreateFileW(cmSystemTools::ConvertToWindowsExtendedPath(fileName).c_str(),
|
|
GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING,
|
|
FILE_FLAG_BACKUP_SEMANTICS, 0);
|
|
if (!handle) {
|
|
return false;
|
|
}
|
|
if (!GetFileTime(handle, &ptr->timeCreation, &ptr->timeLastAccess,
|
|
&ptr->timeLastWrite)) {
|
|
return false;
|
|
}
|
|
#else
|
|
struct stat st;
|
|
if (stat(fileName.c_str(), &st) < 0) {
|
|
return false;
|
|
}
|
|
ptr->timeBuf.actime = st.st_atime;
|
|
ptr->timeBuf.modtime = st.st_mtime;
|
|
#endif
|
|
// Accept times
|
|
this->times = std::move(ptr);
|
|
return true;
|
|
}
|
|
|
|
bool cmFileTimes::Store(std::string const& fileName) const
|
|
{
|
|
if (!IsValid()) {
|
|
return false;
|
|
}
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
cmFileTimes::WindowsHandle handle = CreateFileW(
|
|
cmSystemTools::ConvertToWindowsExtendedPath(fileName).c_str(),
|
|
FILE_WRITE_ATTRIBUTES, 0, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, 0);
|
|
if (!handle) {
|
|
return false;
|
|
}
|
|
return SetFileTime(handle, &this->times->timeCreation,
|
|
&this->times->timeLastAccess,
|
|
&this->times->timeLastWrite) != 0;
|
|
#else
|
|
return utime(fileName.c_str(), &this->times->timeBuf) >= 0;
|
|
#endif
|
|
}
|
|
|
|
bool cmFileTimes::Copy(std::string const& fromFile, std::string const& toFile)
|
|
{
|
|
cmFileTimes fileTimes;
|
|
return (fileTimes.Load(fromFile) && fileTimes.Store(toFile));
|
|
}
|