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Build a minimized Nix with MinGW

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At this point many features are stripped out, but this works:

- Can run libnix{util,store,expr} unit tests
- Can run some Nix commands

Co-Authored-By volth <volth@volth.com>
Co-Authored-By Brian McKenna <brian@brianmckenna.org>
This commit is contained in:
John Ericson 2023-09-02 17:35:16 -04:00
parent 2248a3f545
commit 8433027e35
111 changed files with 1162 additions and 140 deletions
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140
src/libstore/build/entry-points.cc
View file

@ -1,140 +0,0 @@
#include "worker.hh"
#include "substitution-goal.hh"
#include "derivation-goal.hh"
#include "local-store.hh"
namespace nix {
void Store::buildPaths(const std::vector<DerivedPath> & reqs, BuildMode buildMode, std::shared_ptr<Store> evalStore)
{
Worker worker(*this, evalStore ? *evalStore : *this);
Goals goals;
for (auto & br : reqs)
goals.insert(worker.makeGoal(br, buildMode));
worker.run(goals);
StringSet failed;
std::optional<Error> ex;
for (auto & i : goals) {
if (i->ex) {
if (ex)
logError(i->ex->info());
else
ex = std::move(i->ex);
}
if (i->exitCode != Goal::ecSuccess) {
if (auto i2 = dynamic_cast<DerivationGoal *>(i.get()))
failed.insert(printStorePath(i2->drvPath));
else if (auto i2 = dynamic_cast<PathSubstitutionGoal *>(i.get()))
failed.insert(printStorePath(i2->storePath));
}
}
if (failed.size() == 1 && ex) {
ex->withExitStatus(worker.failingExitStatus());
throw std::move(*ex);
} else if (!failed.empty()) {
if (ex) logError(ex->info());
throw Error(worker.failingExitStatus(), "build of %s failed", concatStringsSep(", ", quoteStrings(failed)));
}
}
std::vector<KeyedBuildResult> Store::buildPathsWithResults(
const std::vector<DerivedPath> & reqs,
BuildMode buildMode,
std::shared_ptr<Store> evalStore)
{
Worker worker(*this, evalStore ? *evalStore : *this);
Goals goals;
std::vector<std::pair<const DerivedPath &, GoalPtr>> state;
for (const auto & req : reqs) {
auto goal = worker.makeGoal(req, buildMode);
goals.insert(goal);
state.push_back({req, goal});
}
worker.run(goals);
std::vector<KeyedBuildResult> results;
for (auto & [req, goalPtr] : state)
results.emplace_back(KeyedBuildResult {
goalPtr->getBuildResult(req),
/* .path = */ req,
});
return results;
}
BuildResult Store::buildDerivation(const StorePath & drvPath, const BasicDerivation & drv,
BuildMode buildMode)
{
Worker worker(*this, *this);
auto goal = worker.makeBasicDerivationGoal(drvPath, drv, OutputsSpec::All {}, buildMode);
try {
worker.run(Goals{goal});
return goal->getBuildResult(DerivedPath::Built {
.drvPath = makeConstantStorePathRef(drvPath),
.outputs = OutputsSpec::All {},
});
} catch (Error & e) {
return BuildResult {
.status = BuildResult::MiscFailure,
.errorMsg = e.msg(),
};
};
}
void Store::ensurePath(const StorePath & path)
{
/* If the path is already valid, we're done. */
if (isValidPath(path)) return;
Worker worker(*this, *this);
GoalPtr goal = worker.makePathSubstitutionGoal(path);
Goals goals = {goal};
worker.run(goals);
if (goal->exitCode != Goal::ecSuccess) {
if (goal->ex) {
goal->ex->withExitStatus(worker.failingExitStatus());
throw std::move(*goal->ex);
} else
throw Error(worker.failingExitStatus(), "path '%s' does not exist and cannot be created", printStorePath(path));
}
}
void Store::repairPath(const StorePath & path)
{
Worker worker(*this, *this);
GoalPtr goal = worker.makePathSubstitutionGoal(path, Repair);
Goals goals = {goal};
worker.run(goals);
if (goal->exitCode != Goal::ecSuccess) {
/* Since substituting the path didn't work, if we have a valid
deriver, then rebuild the deriver. */
auto info = queryPathInfo(path);
if (info->deriver && isValidPath(*info->deriver)) {
goals.clear();
goals.insert(worker.makeGoal(DerivedPath::Built {
.drvPath = makeConstantStorePathRef(*info->deriver),
// FIXME: Should just build the specific output we need.
.outputs = OutputsSpec::All { },
}, bmRepair));
worker.run(goals);
} else
throw Error(worker.failingExitStatus(), "cannot repair path '%s'", printStorePath(path));
}
}
}