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Don't write lock files if they have dirty inputs

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This commit is contained in:
Eelco Dolstra 2019-07-12 13:29:54 +02:00
parent bd62290c23
commit b29cec7697
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GPG key ID: 8170B4726D7198DE
4 changed files with 36 additions and 10 deletions
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25
src/libexpr/flake/flake.cc
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@ -405,17 +405,22 @@ ResolvedFlake resolveFlake(EvalState & state, const FlakeRef & topRef, HandleLoc
if (!(lockFile == oldLockFile)) {
if (allowedToWrite(handleLockFile)) {
if (auto refData = std::get_if<FlakeRef::IsPath>(&topRef.data)) {
lockFile.write(refData->path + (topRef.subdir == "" ? "" : "/" + topRef.subdir) + "/flake.lock");
if (lockFile.isDirty())
warn("will not write lock file of flake '%s' because it has a dirty input", topRef);
else {
lockFile.write(refData->path + (topRef.subdir == "" ? "" : "/" + topRef.subdir) + "/flake.lock");
// Hack: Make sure that flake.lock is visible to Git, so it ends up in the Nix store.
runProgram("git", true, { "-C", refData->path, "add",
"--force",
"--intent-to-add",
(topRef.subdir == "" ? "" : topRef.subdir + "/") + "flake.lock" });
// Hack: Make sure that flake.lock is visible to Git, so it ends up in the Nix store.
runProgram("git", true,
{ "-C", refData->path, "add",
"--force",
"--intent-to-add",
(topRef.subdir == "" ? "" : topRef.subdir + "/") + "flake.lock" });
}
} else
warn("cannot write lockfile of remote flake '%s'", topRef);
warn("cannot write lock file of remote flake '%s'", topRef);
} else if (handleLockFile != AllPure && handleLockFile != TopRefUsesRegistries)
warn("using updated lockfile without writing it to file");
warn("using updated lock file without writing it to file");
}
return ResolvedFlake(std::move(flake), std::move(lockFile));
@ -624,8 +629,8 @@ const Registries EvalState::getFlakeRegistries()
Fingerprint ResolvedFlake::getFingerprint() const
{
// FIXME: as an optimization, if the flake contains a lockfile and
// we haven't changed it, then it's sufficient to use
// FIXME: as an optimization, if the flake contains a lock file
// and we haven't changed it, then it's sufficient to use
// flake.sourceInfo.storePath for the fingerprint.
return hashString(htSHA256,
fmt("%s;%s", flake.sourceInfo.storePath, lockFile));