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Merge remote-tracking branch 'upstream/master' into path-info

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This commit is contained in:
John Ericson 2020-09-23 22:35:41 +00:00
commit 45ca7c3e4b
409 changed files with 16538 additions and 19995 deletions
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78
src/libstore/misc.cc
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@ -4,7 +4,8 @@
#include "local-store.hh"
#include "store-api.hh"
#include "thread-pool.hh"
#include "topo-sort.hh"
#include "callback.hh"
namespace nix {
@ -111,7 +112,7 @@ std::optional<ContentAddress> getDerivationCA(const BasicDerivation & drv)
{
auto out = drv.outputs.find("out");
if (out != drv.outputs.end()) {
if (auto v = std::get_if<DerivationOutputFixed>(&out->second.output))
if (auto v = std::get_if<DerivationOutputCAFixed>(&out->second.output))
return v->hash;
}
return std::nullopt;
@ -201,17 +202,24 @@ void Store::queryMissing(const std::vector<StorePathWithOutputs> & targets,
return;
}
PathSet invalid;
/* true for regular derivations, and CA derivations for which we
have a trust mapping for all wanted outputs. */
auto knownOutputPaths = true;
for (auto & [outputName, pathOpt] : queryPartialDerivationOutputMap(path.path)) {
if (!pathOpt) {
knownOutputPaths = false;
break;
}
if (wantOutput(outputName, path.outputs) && !isValidPath(*pathOpt))
invalid.insert(printStorePath(*pathOpt));
}
if (knownOutputPaths && invalid.empty()) return;
auto drv = make_ref<Derivation>(derivationFromPath(path.path));
ParsedDerivation parsedDrv(StorePath(path.path), *drv);
PathSet invalid;
for (auto & j : drv->outputs)
if (wantOutput(j.first, path.outputs)
&& !isValidPath(j.second.path(*this, drv->name)))
invalid.insert(printStorePath(j.second.path(*this, drv->name)));
if (invalid.empty()) return;
if (settings.useSubstitutes && parsedDrv.substitutesAllowed()) {
if (knownOutputPaths && settings.useSubstitutes && parsedDrv.substitutesAllowed()) {
auto drvState = make_ref<Sync<DrvState>>(DrvState(invalid.size()));
for (auto & output : invalid)
pool.enqueue(std::bind(checkOutput, printStorePath(path.path), drv, output, drvState));
@ -255,41 +263,21 @@ void Store::queryMissing(const std::vector<StorePathWithOutputs> & targets,
StorePaths Store::topoSortPaths(const StorePathSet & paths)
{
StorePaths sorted;
StorePathSet visited, parents;
std::function<void(const StorePath & path, const StorePath * parent)> dfsVisit;
dfsVisit = [&](const StorePath & path, const StorePath * parent) {
if (parents.count(path))
throw BuildError("cycle detected in the references of '%s' from '%s'",
printStorePath(path), printStorePath(*parent));
if (!visited.insert(path).second) return;
parents.insert(path);
StorePathSet references;
try {
references = queryPathInfo(path)->references;
} catch (InvalidPath &) {
}
for (auto & i : references)
/* Don't traverse into paths that don't exist. That can
happen due to substitutes for non-existent paths. */
if (paths.count(i))
dfsVisit(i, &path);
sorted.push_back(path);
parents.erase(path);
};
for (auto & i : paths)
dfsVisit(i, nullptr);
std::reverse(sorted.begin(), sorted.end());
return sorted;
return topoSort(paths,
{[&](const StorePath & path) {
StorePathSet references;
try {
references = queryPathInfo(path)->references;
} catch (InvalidPath &) {
}
return references;
}},
{[&](const StorePath & path, const StorePath & parent) {
return BuildError(
"cycle detected in the references of '%s' from '%s'",
printStorePath(path),
printStorePath(parent));
}});
}