Parse CA derivations using new output variants

We no longer need `ParsedDerivation` because everything libstore needs
to know about is in the `BasicDerivation` proper.
This commit is contained in:
John Ericson 2020-07-22 23:59:25 +00:00
parent 5ce95b9529
commit 9423f64ee2
6 changed files with 25 additions and 10 deletions

View file

@ -345,6 +345,7 @@ EvalState::EvalState(const Strings & _searchPath, ref<Store> store)
, sStructuredAttrs(symbols.create("__structuredAttrs"))
, sBuilder(symbols.create("builder"))
, sArgs(symbols.create("args"))
, sContentAddressed(symbols.create("__contentAddressed"))
, sOutputHash(symbols.create("outputHash"))
, sOutputHashAlgo(symbols.create("outputHashAlgo"))
, sOutputHashMode(symbols.create("outputHashMode"))

View file

@ -74,6 +74,7 @@ public:
sSystem, sOverrides, sOutputs, sOutputName, sIgnoreNulls,
sFile, sLine, sColumn, sFunctor, sToString,
sRight, sWrong, sStructuredAttrs, sBuilder, sArgs,
sContentAddressed,
sOutputHash, sOutputHashAlgo, sOutputHashMode,
sRecurseForDerivations,
sDescription, sSelf, sEpsilon;

View file

@ -583,6 +583,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
PathSet context;
bool contentAddressed = false;
std::optional<std::string> outputHash;
std::string outputHashAlgo;
auto ingestionMethod = FileIngestionMethod::Flat;
@ -639,6 +640,9 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
if (i->value->type == tNull) continue;
}
if (i->name == state.sContentAddressed)
contentAddressed = state.forceBool(*i->value, pos);
/* The `args' attribute is special: it supplies the
command-line arguments to the builder. */
if (i->name == state.sArgs) {
@ -761,7 +765,10 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
});
if (outputHash) {
/* Handle fixed-output derivations. */
/* Handle fixed-output derivations.
Ignore `__contentAddressed` because fixed output derivations are
already content addressed. */
if (outputs.size() != 1 || *(outputs.begin()) != "out")
throw Error({
.hint = hintfmt("multiple outputs are not supported in fixed-output derivations"),
@ -783,6 +790,19 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
});
}
else if (contentAddressed) {
HashType ht = parseHashType(outputHashAlgo);
for (auto & i : outputs) {
if (!jsonObject) drv.env[i] = hashPlaceholder(i);
drv.outputs.insert_or_assign(i, DerivationOutput {
.output = DerivationOutputFloating {
.method = ingestionMethod,
.hashType = std::move(ht),
},
});
}
}
else {
/* Compute a hash over the "masked" store derivation, which is
the final one except that in the list of outputs, the

View file

@ -1195,7 +1195,7 @@ void DerivationGoal::haveDerivation()
parsedDrv = std::make_unique<ParsedDerivation>(drvPath, *drv);
if (parsedDrv->contentAddressed()) {
if (drv->type() == DerivationType::CAFloating) {
settings.requireExperimentalFeature("ca-derivations");
throw UnimplementedError("ca-derivations isn't implemented yet");
}

View file

@ -117,9 +117,4 @@ bool ParsedDerivation::substitutesAllowed() const
return getBoolAttr("allowSubstitutes", true);
}
bool ParsedDerivation::contentAddressed() const
{
return getBoolAttr("__contentAddressed", false);
}
}

View file

@ -34,8 +34,6 @@ public:
bool willBuildLocally() const;
bool substitutesAllowed() const;
bool contentAddressed() const;
};
}