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Merge pull request #5955 from leoetlino/copy

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FileUtil: Simplify File::Copy on non-Windows platforms
This commit is contained in:
Leo Lam 2017-08-22 21:29:46 +02:00 committed by GitHub
commit 6e1cdfadc9
1 changed files with 10 additions and 52 deletions
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62
Source/Core/Common/FileUtil.cpp
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@ -7,6 +7,7 @@
#include <cstdio>
#include <cstring>
#include <fcntl.h>
#include <fstream>
#include <limits.h>
#include <string>
#include <sys/stat.h>
@ -317,65 +318,22 @@ bool RenameSync(const std::string& srcFilename, const std::string& destFilename)
return true;
}
// copies file srcFilename to destFilename, returns true on success
bool Copy(const std::string& srcFilename, const std::string& destFilename)
// copies file source_path to destination_path, returns true on success
bool Copy(const std::string& source_path, const std::string& destination_path)
{
INFO_LOG(COMMON, "Copy: %s --> %s", srcFilename.c_str(), destFilename.c_str());
INFO_LOG(COMMON, "Copy: %s --> %s", source_path.c_str(), destination_path.c_str());
#ifdef _WIN32
if (CopyFile(UTF8ToTStr(srcFilename).c_str(), UTF8ToTStr(destFilename).c_str(), FALSE))
if (CopyFile(UTF8ToTStr(source_path).c_str(), UTF8ToTStr(destination_path).c_str(), FALSE))
return true;
ERROR_LOG(COMMON, "Copy: failed %s --> %s: %s", srcFilename.c_str(), destFilename.c_str(),
ERROR_LOG(COMMON, "Copy: failed %s --> %s: %s", source_path.c_str(), destination_path.c_str(),
GetLastErrorString().c_str());
return false;
#else
// buffer size
#define BSIZE 1024
char buffer[BSIZE];
// Open input file
std::ifstream input;
OpenFStream(input, srcFilename, std::ifstream::in | std::ifstream::binary);
if (!input.is_open())
{
ERROR_LOG(COMMON, "Copy: failed to open %s", srcFilename.c_str());
return false;
}
// open output file
File::IOFile output(destFilename, "wb");
if (!output.IsOpen())
{
ERROR_LOG(COMMON, "Copy: output failed %s --> %s: %s", srcFilename.c_str(),
destFilename.c_str(), LastStrerrorString().c_str());
return false;
}
// copy loop
while (!input.eof())
{
// read input
input.read(buffer, BSIZE);
if (!input)
{
ERROR_LOG(COMMON, "Copy: failed reading from source, %s --> %s", srcFilename.c_str(),
destFilename.c_str());
return false;
}
// write output
if (!output.WriteBytes(buffer, BSIZE))
{
ERROR_LOG(COMMON, "Copy: failed writing to output, %s --> %s: %s", srcFilename.c_str(),
destFilename.c_str(), LastStrerrorString().c_str());
return false;
}
}
return true;
std::ifstream source{source_path, std::ios::binary};
std::ofstream destination{destination_path, std::ios::binary};
destination << source.rdbuf();
return source.good() && destination.good();
#endif
}