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")) , sStructuredAttrs(symbols.create("__structuredAttrs"))
, sBuilder(symbols.create("builder")) , sBuilder(symbols.create("builder"))
, sArgs(symbols.create("args")) , sArgs(symbols.create("args"))
, sContentAddressed(symbols.create("__contentAddressed"))
, sOutputHash(symbols.create("outputHash")) , sOutputHash(symbols.create("outputHash"))
, sOutputHashAlgo(symbols.create("outputHashAlgo")) , sOutputHashAlgo(symbols.create("outputHashAlgo"))
, sOutputHashMode(symbols.create("outputHashMode")) , sOutputHashMode(symbols.create("outputHashMode"))

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

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@ -583,6 +583,7 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
PathSet context; PathSet context;
bool contentAddressed = false;
std::optional<std::string> outputHash; std::optional<std::string> outputHash;
std::string outputHashAlgo; std::string outputHashAlgo;
auto ingestionMethod = FileIngestionMethod::Flat; 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->value->type == tNull) continue;
} }
if (i->name == state.sContentAddressed)
contentAddressed = state.forceBool(*i->value, pos);
/* The `args' attribute is special: it supplies the /* The `args' attribute is special: it supplies the
command-line arguments to the builder. */ command-line arguments to the builder. */
if (i->name == state.sArgs) { if (i->name == state.sArgs) {
@ -761,7 +765,10 @@ static void prim_derivationStrict(EvalState & state, const Pos & pos, Value * *
}); });
if (outputHash) { 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") if (outputs.size() != 1 || *(outputs.begin()) != "out")
throw Error({ throw Error({
.hint = hintfmt("multiple outputs are not supported in fixed-output derivations"), .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 { else {
/* Compute a hash over the "masked" store derivation, which is /* Compute a hash over the "masked" store derivation, which is
the final one except that in the list of outputs, the the final one except that in the list of outputs, the

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

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

View file

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