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Add option to verify build determinism

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Passing "--option build-repeat <N>" will cause every build to be
repeated N times. If the build output differs between any round, the
build is rejected, and the output paths are not registered as
valid. This is primarily useful to verify build determinism. (We
already had a --check option to repeat a previously succeeded
build. However, with --check, non-deterministic builds are registered
in the DB. Preventing that is useful for Hydra to ensure that
non-deterministic builds don't end up getting published at all.)
This commit is contained in:
Eelco Dolstra 2015-11-09 23:16:24 +01:00
parent 96c2ebf004
commit 8fdd156a65
3 changed files with 76 additions and 12 deletions
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14
src/libstore/store-api.hh
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@ -87,10 +87,17 @@ struct ValidPathInfo
Path deriver;
Hash hash;
PathSet references;
time_t registrationTime;
unsigned long long narSize; // 0 = unknown
time_t registrationTime = 0;
unsigned long long narSize = 0; // 0 = unknown
unsigned long long id; // internal use only
ValidPathInfo() : registrationTime(0), narSize(0) { }
bool operator == (const ValidPathInfo & i) const
{
return
path == i.path
&& hash == i.hash
&& references == i.references;
}
};
typedef list<ValidPathInfo> ValidPathInfos;
@ -114,6 +121,7 @@ struct BuildResult
MiscFailure,
DependencyFailed,
LogLimitExceeded,
NotDeterministic,
} status = MiscFailure;
std::string errorMsg;
//time_t startTime = 0, stopTime = 0;