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Move querySubstitutablePathInfos from LocalStore to Store

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The code is not local-store-specific, so we should share it with all
stores. More uniform behavior is better, and a less store-specific
functionality is more maintainable.

This fixes a FIXME added in f73d911628 by @edolstra himself.
This commit is contained in:
John Ericson 2023-04-02 20:28:10 -04:00
parent 2ef99cd104
commit 9383520b75
4 changed files with 49 additions and 52 deletions
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48
src/libstore/local-store.cc
View file

@ -1134,54 +1134,6 @@ StorePathSet LocalStore::querySubstitutablePaths(const StorePathSet & paths)
}
// FIXME: move this, it's not specific to LocalStore.
void LocalStore::querySubstitutablePathInfos(const StorePathCAMap & paths, SubstitutablePathInfos & infos)
{
if (!settings.useSubstitutes) return;
for (auto & sub : getDefaultSubstituters()) {
for (auto & path : paths) {
if (infos.count(path.first))
// Choose first succeeding substituter.
continue;
auto subPath(path.first);
// Recompute store path so that we can use a different store root.
if (path.second) {
subPath = makeFixedOutputPathFromCA(path.first.name(), *path.second);
if (sub->storeDir == storeDir)
assert(subPath == path.first);
if (subPath != path.first)
debug("replaced path '%s' with '%s' for substituter '%s'", printStorePath(path.first), sub->printStorePath(subPath), sub->getUri());
} else if (sub->storeDir != storeDir) continue;
debug("checking substituter '%s' for path '%s'", sub->getUri(), sub->printStorePath(subPath));
try {
auto info = sub->queryPathInfo(subPath);
if (sub->storeDir != storeDir && !(info->isContentAddressed(*sub) && info->references.empty()))
continue;
auto narInfo = std::dynamic_pointer_cast<const NarInfo>(
std::shared_ptr<const ValidPathInfo>(info));
infos.insert_or_assign(path.first, SubstitutablePathInfo{
info->deriver,
info->references,
narInfo ? narInfo->fileSize : 0,
info->narSize});
} catch (InvalidPath &) {
} catch (SubstituterDisabled &) {
} catch (Error & e) {
if (settings.tryFallback)
logError(e.info());
else
throw;
}
}
}
}
void LocalStore::registerValidPath(const ValidPathInfo & info)
{
registerValidPaths({{info.path, info}});

3
src/libstore/local-store.hh
View file

@ -134,9 +134,6 @@ public:
StorePathSet querySubstitutablePaths(const StorePathSet & paths) override;
void querySubstitutablePathInfos(const StorePathCAMap & paths,
SubstitutablePathInfos & infos) override;
bool pathInfoIsUntrusted(const ValidPathInfo &) override;
bool realisationIsUntrusted(const Realisation & ) override;

48
src/libstore/store-api.cc
View file

@ -507,6 +507,54 @@ StorePathSet Store::queryDerivationOutputs(const StorePath & path)
return outputPaths;
}
void Store::querySubstitutablePathInfos(const StorePathCAMap & paths, SubstitutablePathInfos & infos)
{
if (!settings.useSubstitutes) return;
for (auto & sub : getDefaultSubstituters()) {
for (auto & path : paths) {
if (infos.count(path.first))
// Choose first succeeding substituter.
continue;
auto subPath(path.first);
// Recompute store path so that we can use a different store root.
if (path.second) {
subPath = makeFixedOutputPathFromCA(path.first.name(), *path.second);
if (sub->storeDir == storeDir)
assert(subPath == path.first);
if (subPath != path.first)
debug("replaced path '%s' with '%s' for substituter '%s'", printStorePath(path.first), sub->printStorePath(subPath), sub->getUri());
} else if (sub->storeDir != storeDir) continue;
debug("checking substituter '%s' for path '%s'", sub->getUri(), sub->printStorePath(subPath));
try {
auto info = sub->queryPathInfo(subPath);
if (sub->storeDir != storeDir && !(info->isContentAddressed(*sub) && info->references.empty()))
continue;
auto narInfo = std::dynamic_pointer_cast<const NarInfo>(
std::shared_ptr<const ValidPathInfo>(info));
infos.insert_or_assign(path.first, SubstitutablePathInfo{
info->deriver,
info->references,
narInfo ? narInfo->fileSize : 0,
info->narSize});
} catch (InvalidPath &) {
} catch (SubstituterDisabled &) {
} catch (Error & e) {
if (settings.tryFallback)
logError(e.info());
else
throw;
}
}
}
}
bool Store::isValidPath(const StorePath & storePath)
{
{

2
src/libstore/store-api.hh
View file

@ -456,7 +456,7 @@ public:
* resulting ‘infos’ map.
*/
virtual void querySubstitutablePathInfos(const StorePathCAMap & paths,
SubstitutablePathInfos & infos) { return; };
SubstitutablePathInfos & infos);
/**
* Import a path into the store.