max/nix-super
1
0
Fork 0
mirror of https://github.com/privatevoid-net/nix-super.git synced 2024-11-27 08:16:14 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Only rewrite the lockfile if it changed

Browse source 
This removes spurious warnings about failure to write the lockfile.
This commit is contained in:
Eelco Dolstra 2019-05-21 14:55:43 +02:00
parent 818c8da5b8
commit 20a1a65d37
2 changed files with 37 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
src/libexpr/primops/flake.cc
View file

@ -465,16 +465,19 @@ ResolvedFlake resolveFlakeFromLockFile(EvalState & state, const FlakeRef & flake
ResolvedFlake resolveFlake(EvalState & state, const FlakeRef & topRef, HandleLockFile handleLockFile) ResolvedFlake resolveFlake(EvalState & state, const FlakeRef & topRef, HandleLockFile handleLockFile)
{ {
Flake flake = getFlake(state, topRef, allowedToUseRegistries(handleLockFile, true)); Flake flake = getFlake(state, topRef, allowedToUseRegistries(handleLockFile, true));
LockFile lockFile; LockFile oldLockFile;
if (!recreateLockFile (handleLockFile)) { if (!recreateLockFile (handleLockFile)) {
// If recreateLockFile, start with an empty lockfile // If recreateLockFile, start with an empty lockfile
lockFile = readLockFile(flake.storePath + "/flake.lock"); // FIXME: symlink attack oldLockFile = readLockFile(flake.storePath + "/flake.lock"); // FIXME: symlink attack
} }
LockFile lockFile(oldLockFile);
ResolvedFlake resFlake = resolveFlakeFromLockFile(state, topRef, handleLockFile, lockFile, true); ResolvedFlake resFlake = resolveFlakeFromLockFile(state, topRef, handleLockFile, lockFile, true);
lockFile = entryToLockFile(dependenciesToFlakeEntry(resFlake)); lockFile = entryToLockFile(dependenciesToFlakeEntry(resFlake));
if (!(lockFile == oldLockFile)) {
if (allowedToWrite(handleLockFile)) { if (allowedToWrite(handleLockFile)) {
if (auto refData = std::get_if<FlakeRef::IsPath>(&topRef.data)) { if (auto refData = std::get_if<FlakeRef::IsPath>(&topRef.data)) {
writeLockFile(lockFile, refData->path + (topRef.subdir == "" ? "" : "/" + topRef.subdir) + "/flake.lock"); writeLockFile(lockFile, refData->path + (topRef.subdir == "" ? "" : "/" + topRef.subdir) + "/flake.lock");
@ -485,6 +488,7 @@ ResolvedFlake resolveFlake(EvalState & state, const FlakeRef & topRef, HandleLoc
} else std::cout << "Cannot write lockfile because the FlakeRef isn't of the form IsPath." << std::endl; } else std::cout << "Cannot write lockfile because the FlakeRef isn't of the form IsPath." << std::endl;
} else if (handleLockFile != AllPure && handleLockFile != TopRefUsesRegistries) } else if (handleLockFile != AllPure && handleLockFile != TopRefUsesRegistries)
std::cout << "Using updating lockfile without writing it to file" << std::endl; std::cout << "Using updating lockfile without writing it to file" << std::endl;
}
return resFlake; return resFlake;
} }

21
src/libexpr/primops/flake.hh
View file

@ -24,6 +24,11 @@ struct LockFile
FlakeRef ref; FlakeRef ref;
Hash contentHash; Hash contentHash;
NonFlakeEntry(const FlakeRef & flakeRef, const Hash & hash) : ref(flakeRef), contentHash(hash) {}; NonFlakeEntry(const FlakeRef & flakeRef, const Hash & hash) : ref(flakeRef), contentHash(hash) {};
bool operator ==(const NonFlakeEntry & other) const
{
return ref == other.ref && contentHash == other.contentHash;
}
}; };
struct FlakeEntry struct FlakeEntry
@ -33,10 +38,26 @@ struct LockFile
std::map<FlakeRef, FlakeEntry> flakeEntries; std::map<FlakeRef, FlakeEntry> flakeEntries;
std::map<FlakeAlias, NonFlakeEntry> nonFlakeEntries; std::map<FlakeAlias, NonFlakeEntry> nonFlakeEntries;
FlakeEntry(const FlakeRef & flakeRef, const Hash & hash) : ref(flakeRef), contentHash(hash) {}; FlakeEntry(const FlakeRef & flakeRef, const Hash & hash) : ref(flakeRef), contentHash(hash) {};
bool operator ==(const FlakeEntry & other) const
{
return
ref == other.ref
&& contentHash == other.contentHash
&& flakeEntries == other.flakeEntries
&& nonFlakeEntries == other.nonFlakeEntries;
}
}; };
std::map<FlakeRef, FlakeEntry> flakeEntries; std::map<FlakeRef, FlakeEntry> flakeEntries;
std::map<FlakeAlias, NonFlakeEntry> nonFlakeEntries; std::map<FlakeAlias, NonFlakeEntry> nonFlakeEntries;
bool operator ==(const LockFile & other) const
{
return
flakeEntries == other.flakeEntries
&& nonFlakeEntries == other.nonFlakeEntries;
}
}; };
typedef std::vector<std::shared_ptr<FlakeRegistry>> Registries; typedef std::vector<std::shared_ptr<FlakeRegistry>> Registries;