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Add option to disable import-from-derivation completely, even if the drv is already realized

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This commit is contained in:
Shea Levy 2017-03-08 08:46:12 -05:00
parent 121a407eec
commit 93f863be96
3 changed files with 7 additions and 0 deletions
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2
src/libexpr/primops.cc
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@ -59,6 +59,8 @@ void EvalState::realiseContext(const PathSet & context)
drvs.insert(decoded.first + "!" + decoded.second);
}
if (!drvs.empty()) {
if (!settings.enableImportFromDerivation)
throw EvalError(format("attempted to realize ‘%1%’ during evaluation but 'allow-import-from-derivation' is false") % *(drvs.begin()));
/* For performance, prefetch all substitute info. */
PathSet willBuild, willSubstitute, unknown;
unsigned long long downloadSize, narSize;