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Allow substituting drv outputs when building

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This commit is contained in:
regnat 2020-11-09 15:40:10 +01:00
parent 5d1c05b075
commit df9d4f88d5
5 changed files with 185 additions and 12 deletions
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22
src/libstore/build/worker.cc
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@ -1,6 +1,7 @@
#include "machines.hh"
#include "worker.hh"
#include "substitution-goal.hh"
#include "drv-output-substitution-goal.hh"
#include "local-derivation-goal.hh"
#include "hook-instance.hh"
@ -90,8 +91,20 @@ std::shared_ptr<PathSubstitutionGoal> Worker::makePathSubstitutionGoal(const Sto
return goal;
}
template<typename G>
static void removeGoal(std::shared_ptr<G> goal, std::map<StorePath, std::weak_ptr<G>> & goalMap)
std::shared_ptr<DrvOutputSubstitutionGoal> Worker::makeDrvOutputSubstitutionGoal(const DrvOutput& id, RepairFlag repair, std::optional<ContentAddress> ca)
{
std::weak_ptr<DrvOutputSubstitutionGoal> & goal_weak = drvOutputSubstitutionGoals[id];
auto goal = goal_weak.lock(); // FIXME
if (!goal) {
goal = std::make_shared<DrvOutputSubstitutionGoal>(id, *this, repair, ca);
goal_weak = goal;
wakeUp(goal);
}
return goal;
}
template<typename K, typename G>
static void removeGoal(std::shared_ptr<G> goal, std::map<K, std::weak_ptr<G>> & goalMap)
{
/* !!! inefficient */
for (auto i = goalMap.begin();
@ -111,6 +124,8 @@ void Worker::removeGoal(GoalPtr goal)
nix::removeGoal(drvGoal, derivationGoals);
else if (auto subGoal = std::dynamic_pointer_cast<PathSubstitutionGoal>(goal))
nix::removeGoal(subGoal, substitutionGoals);
else if (auto subGoal = std::dynamic_pointer_cast<DrvOutputSubstitutionGoal>(goal))
nix::removeGoal(subGoal, drvOutputSubstitutionGoals);
else
assert(false);
if (topGoals.find(goal) != topGoals.end()) {
@ -474,5 +489,8 @@ void Worker::markContentsGood(const StorePath & path)
GoalPtr upcast_goal(std::shared_ptr<PathSubstitutionGoal> subGoal) {
return subGoal;
}
GoalPtr upcast_goal(std::shared_ptr<DrvOutputSubstitutionGoal> subGoal) {
return subGoal;
}
}