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Fix makeContentAddressed() on self-references

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LocalStore::addToStore() since
79ae9e4558 expects a regular NAR hash,
rather than a NAR hash modulo self-references. Fixes #6300.

Also, makeContentAddressed() now rewrites the entire closure (so 'nix
store make-content-addressable' no longer needs '-r'). See #6301.
This commit is contained in:
Eelco Dolstra 2022-03-22 21:47:50 +01:00
parent 545c2d0d8c
commit f18607549c
1 changed files with 18 additions and 17 deletions
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35
src/libstore/make-content-addressed.cc
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@ -8,9 +8,10 @@ std::map<StorePath, StorePath> makeContentAddressed(
Store & dstStore,
const StorePathSet & storePaths)
{
// FIXME: use closure of storePaths.
StorePathSet closure;
srcStore.computeFSClosure(storePaths, closure);
auto paths = srcStore.topoSortPaths(storePaths);
auto paths = srcStore.topoSortPaths(closure);
std::reverse(paths.begin(), paths.end());
@ -46,29 +47,29 @@ std::map<StorePath, StorePath> makeContentAddressed(
HashModuloSink hashModuloSink(htSHA256, oldHashPart);
hashModuloSink(sink.s);
auto narHash = hashModuloSink.finish().first;
auto narModuloHash = hashModuloSink.finish().first;
ValidPathInfo info {
dstStore.makeFixedOutputPath(FileIngestionMethod::Recursive, narHash, path.name(), references, hasSelfReference),
narHash,
};
auto dstPath = dstStore.makeFixedOutputPath(
FileIngestionMethod::Recursive, narModuloHash, path.name(), references, hasSelfReference);
printInfo("rewroting '%s' to '%s'", pathS, srcStore.printStorePath(dstPath));
StringSink sink2;
RewritingSink rsink2(oldHashPart, std::string(dstPath.hashPart()), sink2);
rsink2(sink.s);
rsink2.flush();
ValidPathInfo info { dstPath, hashString(htSHA256, sink2.s) };
info.references = std::move(references);
if (hasSelfReference) info.references.insert(info.path);
info.narSize = sink.s.size();
info.ca = FixedOutputHash {
.method = FileIngestionMethod::Recursive,
.hash = info.narHash,
.hash = narModuloHash,
};
printInfo("rewrote '%s' to '%s'", pathS, srcStore.printStorePath(info.path));
auto source = sinkToSource([&](Sink & nextSink) {
RewritingSink rsink2(oldHashPart, std::string(info.path.hashPart()), nextSink);
rsink2(sink.s);
rsink2.flush();
});
dstStore.addToStore(info, *source);
StringSource source(sink2.s);
dstStore.addToStore(info, source);
remappings.insert_or_assign(std::move(path), std::move(info.path));
}