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fetchClosure: Refactor: replace enableRewriting

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A single variable is nice and self-contained.
This commit is contained in:
Robert Hensing 2023-06-05 12:55:58 +02:00
parent 5bdca46117
commit dc79636007
1 changed files with 10 additions and 7 deletions
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17
src/libexpr/primops/fetchClosure.cc
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@ -100,14 +100,15 @@ static void runFetchClosureWithInputAddressedPath(EvalState & state, const PosId
state.mkStorePathString(fromPath, v); state.mkStorePathString(fromPath, v);
} }
typedef std::optional<StorePath> StorePathOrGap;
static void prim_fetchClosure(EvalState & state, const PosIdx pos, Value * * args, Value & v) static void prim_fetchClosure(EvalState & state, const PosIdx pos, Value * * args, Value & v)
{ {
state.forceAttrs(*args[0], pos, "while evaluating the argument passed to builtins.fetchClosure"); state.forceAttrs(*args[0], pos, "while evaluating the argument passed to builtins.fetchClosure");
std::optional<std::string> fromStoreUrl; std::optional<std::string> fromStoreUrl;
std::optional<StorePath> fromPath; std::optional<StorePath> fromPath;
bool enableRewriting = false; std::optional<StorePathOrGap> toPath;
std::optional<StorePath> toPath;
std::optional<bool> inputAddressedMaybe; std::optional<bool> inputAddressedMaybe;
for (auto & attr : *args[0]->attrs) { for (auto & attr : *args[0]->attrs) {
@ -123,8 +124,11 @@ static void prim_fetchClosure(EvalState & state, const PosIdx pos, Value * * arg
else if (attrName == "toPath") { else if (attrName == "toPath") {
state.forceValue(*attr.value, attr.pos); state.forceValue(*attr.value, attr.pos);
enableRewriting = true; bool isEmptyString = attr.value->type() == nString && attr.value->string.s == std::string("");
if (attr.value->type() != nString || attr.value->string.s != std::string("")) { if (isEmptyString) {
toPath = StorePathOrGap {};
}
else {
NixStringContext context; NixStringContext context;
toPath = state.coerceToStorePath(attr.pos, *attr.value, context, attrHint()); toPath = state.coerceToStorePath(attr.pos, *attr.value, context, attrHint());
} }
@ -160,7 +164,6 @@ static void prim_fetchClosure(EvalState & state, const PosIdx pos, Value * * arg
"toPath"), "toPath"),
.errPos = state.positions[pos] .errPos = state.positions[pos]
}); });
assert(!enableRewriting);
} }
if (!fromStoreUrl) if (!fromStoreUrl)
@ -187,8 +190,8 @@ static void prim_fetchClosure(EvalState & state, const PosIdx pos, Value * * arg
auto fromStore = openStore(parsedURL.to_string()); auto fromStore = openStore(parsedURL.to_string());
if (enableRewriting) if (toPath)
runFetchClosureWithRewrite(state, pos, *fromStore, *fromPath, toPath, v); runFetchClosureWithRewrite(state, pos, *fromStore, *fromPath, *toPath, v);
else if (inputAddressed) else if (inputAddressed)
runFetchClosureWithInputAddressedPath(state, pos, *fromStore, *fromPath, v); runFetchClosureWithInputAddressedPath(state, pos, *fromStore, *fromPath, v);
else else