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log/backend: Use in-class initializer for FileBackend

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We can also avoid redundant constructions of the same string repeatedly.
This commit is contained in:
Lioncash 2021-04-20 12:57:45 -04:00
parent aaaca1cd6d
commit 6125590a7b
2 changed files with 8 additions and 6 deletions
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10
src/common/logging/backend.cpp
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@ -148,12 +148,14 @@ void ColorConsoleBackend::Write(const Entry& entry) {
PrintColoredMessage(entry);
}
FileBackend::FileBackend(const std::string& filename) : bytes_written(0) {
if (FS::Exists(filename + ".old.txt")) {
FS::Delete(filename + ".old.txt");
FileBackend::FileBackend(const std::string& filename) {
const auto old_filename = filename + ".old.txt";
if (FS::Exists(old_filename)) {
FS::Delete(old_filename);
}
if (FS::Exists(filename)) {
FS::Rename(filename, filename + ".old.txt");
FS::Rename(filename, old_filename);
}
// _SH_DENYWR allows read only access to the file for other programs.