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Get rid of std::shared_ptr<std::string> and ref<std::string>

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These were needed back in the pre-C++11 era because we didn't have
move semantics. But now we do.
This commit is contained in:
Eelco Dolstra 2022-01-17 22:20:05 +01:00
parent 52ee7ec002
commit d62a9390fc
33 changed files with 138 additions and 134 deletions
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20
src/libstore/filetransfer.cc
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@ -106,7 +106,7 @@ struct curlFileTransfer : public FileTransfer
this->request.dataCallback(data);
}
} else
this->result.data->append(data);
this->result.data.append(data);
})
{
if (!request.expectedETag.empty())
@ -195,7 +195,7 @@ struct curlFileTransfer : public FileTransfer
std::smatch match;
if (std::regex_match(line, match, statusLine)) {
result.etag = "";
result.data = std::make_shared<std::string>();
result.data.clear();
result.bodySize = 0;
statusMsg = trim(match[1]);
acceptRanges = false;
@ -340,7 +340,7 @@ struct curlFileTransfer : public FileTransfer
if (writtenToSink)
curl_easy_setopt(req, CURLOPT_RESUME_FROM_LARGE, writtenToSink);
result.data = std::make_shared<std::string>();
result.data.clear();
result.bodySize = 0;
}
@ -434,21 +434,21 @@ struct curlFileTransfer : public FileTransfer
attempt++;
std::shared_ptr<std::string> response;
std::optional<std::string> response;
if (errorSink)
response = errorSink->s;
response = std::move(errorSink->s);
auto exc =
code == CURLE_ABORTED_BY_CALLBACK && _isInterrupted
? FileTransferError(Interrupted, response, "%s of '%s' was interrupted", request.verb(), request.uri)
? FileTransferError(Interrupted, std::move(response), "%s of '%s' was interrupted", request.verb(), request.uri)
: httpStatus != 0
? FileTransferError(err,
response,
std::move(response),
fmt("unable to %s '%s': HTTP error %d ('%s')",
request.verb(), request.uri, httpStatus, statusMsg)
+ (code == CURLE_OK ? "" : fmt(" (curl error: %s)", curl_easy_strerror(code)))
)
: FileTransferError(err,
response,
std::move(response),
fmt("unable to %s '%s': %s (%d)",
request.verb(), request.uri, curl_easy_strerror(code), code));
@ -705,7 +705,7 @@ struct curlFileTransfer : public FileTransfer
FileTransferResult res;
if (!s3Res.data)
throw FileTransferError(NotFound, nullptr, "S3 object '%s' does not exist", request.uri);
res.data = s3Res.data;
res.data = std::move(*s3Res.data);
callback(std::move(res));
#else
throw nix::Error("cannot download '%s' because Nix is not built with S3 support", request.uri);
@ -859,7 +859,7 @@ void FileTransfer::download(FileTransferRequest && request, Sink & sink)
}
template<typename... Args>
FileTransferError::FileTransferError(FileTransfer::Error error, std::shared_ptr<string> response, const Args & ... args)
FileTransferError::FileTransferError(FileTransfer::Error error, std::optional<std::string> response, const Args & ... args)
: Error(args...), error(error), response(response)
{
const auto hf = hintfmt(args...);