nix-env: respect meta.outputsToInstall

Discussed on https://github.com/NixOS/nixpkgs/pull/12653#discussion_r51601849

1 files changed, 2 insertions, 1 deletions

diff --git a/src/libexpr/get-drvs.hh b/src/libexpr/get-drvs.hh
index 365c66c8d710..37fcbe829d3c 100644
--- a/src/libexpr/get-drvs.hh
+++ b/src/libexpr/get-drvs.hh
@@ -42,7 +42,8 @@ public:
     string queryDrvPath();
     string queryOutPath();
     string queryOutputName();
-    Outputs queryOutputs();
+    /** Return the list of outputs. The "outputs to install" are determined by `mesa.outputsToInstall`. */
+    Outputs queryOutputs(bool onlyOutputsToInstall = false);
 
     StringSet queryMetaNames();
     Value * queryMeta(const string & name);