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#pragma once
///@file
#include "realisation.hh"
#include "derived-path.hh"
#include "comparator.hh"
#include <string>
#include <chrono>
#include <optional>
namespace nix {
struct KeyedBuildResult;
struct BuildResult
{
/**
* @note This is directly used in the nix-store --serve protocol.
* That means we need to worry about compatability across versions.
* Therefore, don't remove status codes, and only add new status
* codes at the end of the list.
*/
enum Status {
Built = 0,
Substituted,
AlreadyValid,
PermanentFailure,
InputRejected,
OutputRejected,
/// possibly transient
TransientFailure,
/// no longer used
CachedFailure,
TimedOut,
MiscFailure,
DependencyFailed,
LogLimitExceeded,
NotDeterministic,
ResolvesToAlreadyValid,
NoSubstituters,
} status = MiscFailure;
/**
* Information about the error if the build failed.
*
* @todo This should be an entire ErrorInfo object, not just a
* string, for richer information.
*/
std::string errorMsg;
std::string toString() const {
auto strStatus = [&]() {
switch (status) {
case Built: return "Built";
case Substituted: return "Substituted";
case AlreadyValid: return "AlreadyValid";
case PermanentFailure: return "PermanentFailure";
case InputRejected: return "InputRejected";
case OutputRejected: return "OutputRejected";
case TransientFailure: return "TransientFailure";
case CachedFailure: return "CachedFailure";
case TimedOut: return "TimedOut";
case MiscFailure: return "MiscFailure";
case DependencyFailed: return "DependencyFailed";
case LogLimitExceeded: return "LogLimitExceeded";
case NotDeterministic: return "NotDeterministic";
case ResolvesToAlreadyValid: return "ResolvesToAlreadyValid";
case NoSubstituters: return "NoSubstituters";
default: return "Unknown";
};
}();
return strStatus + ((errorMsg == "") ? "" : " : " + errorMsg);
}
/**
* How many times this build was performed.
*/
unsigned int timesBuilt = 0;
/**
* If timesBuilt > 1, whether some builds did not produce the same
* result. (Note that 'isNonDeterministic = false' does not mean
* the build is deterministic, just that we don't have evidence of
* non-determinism.)
*/
bool isNonDeterministic = false;
/**
* For derivations, a mapping from the names of the wanted outputs
* to actual paths.
*/
SingleDrvOutputs builtOutputs;
/**
* The start/stop times of the build (or one of the rounds, if it
* was repeated).
*/
time_t startTime = 0, stopTime = 0;
/**
* User and system CPU time the build took.
*/
std::optional<std::chrono::microseconds> cpuUser, cpuSystem;
DECLARE_CMP(BuildResult);
bool success()
{
return status == Built || status == Substituted || status == AlreadyValid || status == ResolvesToAlreadyValid;
}
void rethrow()
{
throw Error("%s", errorMsg);
}
/**
* Project a BuildResult with just the information that pertains to
* the given path.
*
* A `BuildResult` may hold information for multiple derived paths;
* this function discards information about outputs not relevant in
* `path`. Build `Goal`s in particular may contain more outputs for
* a single build result than asked for directly, it's necessary to
* remove any such additional result to not leak other build infos.
*/
KeyedBuildResult restrictTo(DerivedPath path) const;
};
/**
* A `BuildResult` together with its "primary key".
*/
struct KeyedBuildResult : BuildResult
{
/**
* The derivation we built or the store path we substituted.
*/
DerivedPath path;
};
}
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