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do not fail atomicReplace if the files does not exist

This commit is contained in:
Evan Tschannen 2019-03-19 13:38:30 -07:00
parent 5b9c45ea0b
commit c33428b705
1 changed files with 9 additions and 4 deletions
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13
flow/Platform.cpp
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@ -1672,11 +1672,16 @@ void atomicReplace( std::string const& path, std::string const& content, bool te
#elif defined(__unixish__)
// get the uid/gid/mode bits of old file and set it on new file, else fail
struct stat info;
bool exists = true;
if (stat(path.c_str(), &info) < 0) {
TraceEvent("StatFailed").detail("Path", path);
throw io_error();
if (errno == ENOENT) {
exists = false;
} else {
TraceEvent("StatFailed").detail("Path", path);
throw io_error();
}
}
if (chown(tempfilename.c_str(), info.st_uid, info.st_gid) < 0) {
if (exists && chown(tempfilename.c_str(), info.st_uid, info.st_gid) < 0) {
TraceEvent("ChownFailed")
.detail("TempFilename", tempfilename)
.detail("OriginalFile", path)
@ -1685,7 +1690,7 @@ void atomicReplace( std::string const& path, std::string const& content, bool te
deleteFile(tempfilename);
throw io_error();
}
if (chmod(tempfilename.c_str(), info.st_mode) < 0) {
if (exists && chmod(tempfilename.c_str(), info.st_mode) < 0) {
TraceEvent("ChmodFailed")
.detail("TempFilename", tempfilename)
.detail("OriginalFile", path)