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libexpr-c: Add nix_string_realise

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This commit is contained in:
Robert Hensing 2024-04-05 16:08:18 +02:00
parent 62f8d8c9a9
commit 02c41aba5b
7 changed files with 235 additions and 10 deletions
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21
src/libexpr/primops.cc
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@ -39,7 +39,7 @@ namespace nix {
* Miscellaneous
*************************************************************/
StringMap EvalState::realiseContext(const NixStringContext & context)
StringMap EvalState::realiseContext(const NixStringContext & context, StorePathSet * maybePathsOut, bool isIFD)
{
std::vector<DerivedPath::Built> drvs;
StringMap res;
@ -61,19 +61,23 @@ StringMap EvalState::realiseContext(const NixStringContext & context)
auto ctxS = store->printStorePath(o.path);
res.insert_or_assign(ctxS, ctxS);
ensureValid(o.path);
if (maybePathsOut)
maybePathsOut->emplace(o.path);
},
[&](const NixStringContextElem::DrvDeep & d) {
/* Treat same as Opaque */
auto ctxS = store->printStorePath(d.drvPath);
res.insert_or_assign(ctxS, ctxS);
ensureValid(d.drvPath);
if (maybePathsOut)
maybePathsOut->emplace(d.drvPath);
},
}, c.raw);
}
if (drvs.empty()) return {};
if (!evalSettings.enableImportFromDerivation)
if (isIFD && !evalSettings.enableImportFromDerivation)
error<EvalError>(
"cannot build '%1%' during evaluation because the option 'allow-import-from-derivation' is disabled",
drvs.begin()->to_string(*store)
@ -90,6 +94,8 @@ StringMap EvalState::realiseContext(const NixStringContext & context)
auto outputs = resolveDerivedPath(*buildStore, drv, &*store);
for (auto & [outputName, outputPath] : outputs) {
outputsToCopyAndAllow.insert(outputPath);
if (maybePathsOut)
maybePathsOut->emplace(outputPath);
/* Get all the output paths corresponding to the placeholders we had */
if (experimentalFeatureSettings.isEnabled(Xp::CaDerivations)) {
@ -106,10 +112,13 @@ StringMap EvalState::realiseContext(const NixStringContext & context)
}
if (store != buildStore) copyClosure(*buildStore, *store, outputsToCopyAndAllow);
for (auto & outputPath : outputsToCopyAndAllow) {
/* Add the output of this derivations to the allowed
paths. */
allowPath(outputPath);
if (isIFD) {
for (auto & outputPath : outputsToCopyAndAllow) {
/* Add the output of this derivations to the allowed
paths. */
allowPath(outputPath);
}
}
return res;