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fix(tvix): Add newlines to build logs

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.. turns out producing an entire build log on a single line is not
useful.

This does not use `<< std::endl` because we have run into buffering
issues with the implementation of the logs->gRPC sink, but intend to
replace this in the future using a structured sink for BuildEvent
protos rather than a raw stream.

Change-Id: Ia9b05fa804391d389e2ef53ab4436c0ec5cc452e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1828
Reviewed-by: glittershark <grfn@gws.fyi>
Tested-by: BuildkiteCI
This commit is contained in:
Vincent Ambo 2020-08-21 02:28:56 +01:00 committed by tazjin
parent 06681c35a9
commit ec72ca1961
1 changed files with 2 additions and 2 deletions
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4
third_party/nix/src/libstore/build.cc vendored
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@ -1473,7 +1473,7 @@ void DerivationGoal::tryToBuild() {
if (hook) {
msg += fmt(" on '%s'", machineName);
}
log_sink_ << msg << "[" << drvPath << "]";
log_sink_ << absl::StrCat(msg, "[", drvPath, "]\n");
mcRunningBuilds =
std::make_unique<MaintainCount<uint64_t>>(worker.runningBuilds);
};
@ -3835,7 +3835,7 @@ void DerivationGoal::handleEOF(int /* fd */) {
void DerivationGoal::flushLine() {
if (settings.verboseBuild &&
(settings.printRepeatedBuilds || curRound == 1)) {
log_sink_ << currentLogLine;
log_sink_ << absl::StrCat(currentLogLine, "\n");
} else {
logTail.push_back(currentLogLine);
if (logTail.size() > settings.logLines) {