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Fix "error: deriver of path ‘’ is not known"

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This commit is contained in:
Eelco Dolstra 2015-05-13 18:03:22 +02:00
parent 9233ac7c56
commit a010c0ae05
1 changed files with 5 additions and 6 deletions
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11
src/nix-store/nix-store.cc
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@ -49,12 +49,11 @@ LocalStore & ensureLocalStore()
static Path useDeriver(Path path)
{
if (!isDerivation(path)) {
path = store->queryDeriver(path);
if (path == "")
throw Error(format("deriver of path ‘%1%’ is not known") % path);
}
return path;
if (isDerivation(path)) return path;
Path drvPath = store->queryDeriver(path);
if (drvPath == "")
throw Error(format("deriver of path ‘%1%’ is not known") % path);
return drvPath;
}