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Merge remote-tracking branch 'tweag/content-hashes' into flakes

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This commit is contained in:
Eelco Dolstra 2019-05-09 15:05:14 +02:00
parent cead210e66 d209bdcd08
commit 3a4b744d9c
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GPG key ID: 8170B4726D7198DE
2 changed files with 34 additions and 14 deletions
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31
src/libexpr/primops/flake.cc
View file

@ -50,7 +50,8 @@ LockFile::FlakeEntry readFlakeEntry(nlohmann::json json)
if (!flakeRef.isImmutable())
throw Error("cannot use mutable flake '%s' in pure mode", flakeRef);
LockFile::FlakeEntry entry(flakeRef);
Hash hash = Hash((std::string) json["contentHash"]);
LockFile::FlakeEntry entry(flakeRef, hash);
auto nonFlakeRequires = json["nonFlakeRequires"];
@ -58,7 +59,9 @@ LockFile::FlakeEntry readFlakeEntry(nlohmann::json json)
FlakeRef flakeRef(i->value("uri", ""));
if (!flakeRef.isImmutable())
throw Error("requested to fetch FlakeRef '%s' purely, which is mutable", flakeRef);
entry.nonFlakeEntries.insert_or_assign(i.key(), flakeRef);
Hash hash = Hash((std::string) i->value("contentHash", ""));
LockFile::NonFlakeEntry newEntry(flakeRef, hash);
entry.nonFlakeEntries.insert_or_assign(i.key(), newEntry);
}
auto requires = json["requires"];
@ -86,9 +89,10 @@ LockFile readLockFile(const Path & path)
for (auto i = nonFlakeRequires.begin(); i != nonFlakeRequires.end(); ++i) {
FlakeRef flakeRef(i->value("uri", ""));
LockFile::NonFlakeEntry entry(flakeRef, Hash((std::string) json["contentHash"]));
if (!flakeRef.isImmutable())
throw Error("requested to fetch FlakeRef '%s' purely, which is mutable", flakeRef);
lockFile.nonFlakeEntries.insert_or_assign(i.key(), flakeRef);
lockFile.nonFlakeEntries.insert_or_assign(i.key(), entry);
}
auto requires = json["requires"];
@ -103,8 +107,11 @@ nlohmann::json flakeEntryToJson(const LockFile::FlakeEntry & entry)
{
nlohmann::json json;
json["uri"] = entry.ref.to_string();
for (auto & x : entry.nonFlakeEntries)
json["nonFlakeRequires"][x.first]["uri"] = x.second.to_string();
json["contentHash"] = entry.contentHash.to_string(SRI);
for (auto & x : entry.nonFlakeEntries) {
json["nonFlakeRequires"][x.first]["uri"] = x.second.ref.to_string();
json["nonFlakeRequires"][x.first]["contentHash"] = x.second.contentHash.to_string(SRI);
}
for (auto & x : entry.flakeEntries)
json["requires"][x.first.to_string()] = flakeEntryToJson(x.second);
return json;
@ -115,8 +122,10 @@ void writeLockFile(const LockFile & lockFile, const Path & path)
nlohmann::json json;
json["version"] = 1;
json["nonFlakeRequires"] = nlohmann::json::object();
for (auto & x : lockFile.nonFlakeEntries)
json["nonFlakeRequires"][x.first]["uri"] = x.second.to_string();
for (auto & x : lockFile.nonFlakeEntries) {
json["nonFlakeRequires"][x.first]["uri"] = x.second.ref.to_string();
json["nonFlakeRequires"][x.first]["contentHash"] = x.second.contentHash.to_string(SRI);
}
json["requires"] = nlohmann::json::object();
for (auto & x : lockFile.flakeEntries)
json["requires"][x.first.to_string()] = flakeEntryToJson(x.second);
@ -293,6 +302,7 @@ Flake getFlake(EvalState & state, const FlakeRef & flakeRef, bool impureIsAllowe
throw Error("flake file '%s' escapes from '%s'", resolvedRef, sourceInfo.storePath);
Flake flake(flakeRef, sourceInfo);
flake.hash = state.store->queryPathInfo(sourceInfo.storePath)->narHash;
if (!pathExists(flakeFile))
throw Error("source tree referenced by '%s' does not contain a '%s/flake.nix' file", resolvedRef, resolvedRef.subdir);
@ -346,12 +356,13 @@ NonFlake getNonFlake(EvalState & state, const FlakeRef & flakeRef, FlakeAlias al
NonFlake nonFlake(flakeRef, sourceInfo);
nonFlake.storePath = sourceInfo.storePath;
state.store->assertStorePath(nonFlake.storePath);
if (state.allowedPaths)
state.allowedPaths->insert(nonFlake.storePath);
nonFlake.hash = state.store->queryPathInfo(sourceInfo.storePath)->narHash;
nonFlake.alias = alias;
return nonFlake;
@ -388,13 +399,13 @@ ResolvedFlake resolveFlake(EvalState & state, const FlakeRef & topRef,
LockFile::FlakeEntry dependenciesToFlakeEntry(const ResolvedFlake & resolvedFlake)
{
LockFile::FlakeEntry entry(resolvedFlake.flake.resolvedRef);
LockFile::FlakeEntry entry(resolvedFlake.flake.resolvedRef, resolvedFlake.flake.hash);
for (auto & newResFlake : resolvedFlake.flakeDeps)
entry.flakeEntries.insert_or_assign(newResFlake.flake.originalRef, dependenciesToFlakeEntry(newResFlake));
for (auto & nonFlake : resolvedFlake.nonFlakeDeps)
entry.nonFlakeEntries.insert_or_assign(nonFlake.alias, nonFlake.resolvedRef);
entry.nonFlakeEntries.insert_or_assign(nonFlake.alias, LockFile::NonFlakeEntry(nonFlake.resolvedRef, nonFlake.hash));
return entry;
}

17
src/libexpr/primops/flake.hh
View file

@ -19,16 +19,24 @@ struct FlakeRegistry
struct LockFile
{
struct NonFlakeEntry
{
FlakeRef ref;
Hash contentHash;
NonFlakeEntry(const FlakeRef & flakeRef, const Hash & hash) : ref(flakeRef), contentHash(hash) {};
};
struct FlakeEntry
{
FlakeRef ref;
Hash contentHash;
std::map<FlakeRef, FlakeEntry> flakeEntries;
std::map<FlakeAlias, FlakeRef> nonFlakeEntries;
FlakeEntry(const FlakeRef & flakeRef) : ref(flakeRef) {};
std::map<FlakeAlias, NonFlakeEntry> nonFlakeEntries;
FlakeEntry(const FlakeRef & flakeRef, const Hash & hash) : ref(flakeRef), contentHash(hash) {};
};
std::map<FlakeRef, FlakeEntry> flakeEntries;
std::map<FlakeId, FlakeRef> nonFlakeEntries;
std::map<FlakeId, NonFlakeEntry> nonFlakeEntries;
};
typedef std::vector<std::shared_ptr<FlakeRegistry>> Registries;
@ -60,6 +68,7 @@ struct Flake
std::string description;
std::optional<uint64_t> revCount;
Path storePath;
Hash hash; // content hash
std::vector<FlakeRef> requires;
std::map<FlakeAlias, FlakeRef> nonFlakeRequires;
Value * vProvides; // FIXME: gc
@ -76,8 +85,8 @@ struct NonFlake
FlakeRef resolvedRef;
std::optional<uint64_t> revCount;
Path storePath;
Hash hash; // content hash
// date
// content hash
NonFlake(const FlakeRef & origRef, const SourceInfo & sourceInfo) : originalRef(origRef),
resolvedRef(sourceInfo.resolvedRef), revCount(sourceInfo.revCount), storePath(sourceInfo.storePath) {};
};