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

2017-03-08 08:46:12 -05:00 · 2017-03-08 08:46:12 -05:00 · 93f863be96
commit 93f863be96
parent 121a407eec
3 changed files with 7 additions and 0 deletions
--- a/src/libexpr/primops.cc
+++ b/src/libexpr/primops.cc
@ -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;