Process nix.conf options in "new" nix commands, add test.

Without this (minor) change, the options set using "--option"
or read from nix.conf were parsed but not used.

2 files changed, 6 insertions, 0 deletions

diff --git a/src/nix/main.cc b/src/nix/main.cc
index 440ced97dfcc..fdb8f6e3a197 100644
--- a/src/nix/main.cc
+++ b/src/nix/main.cc
@@ -42,6 +42,7 @@ void mainWrapped(int argc, char * * argv)
     NixArgs args;
 
     args.parseCmdline(argvToStrings(argc, argv));
+    settings.update();
 
     assert(args.command);
 
diff --git a/tests/timeout.sh b/tests/timeout.sh
index ce1ae7d674a1..77b227e89ba5 100644
--- a/tests/timeout.sh
+++ b/tests/timeout.sh
@@ -29,3 +29,8 @@ if nix-build timeout.nix -A closeLog; then
     echo "build should have failed"
     exit 1
 fi
+
+if nix build -f timeout.nix silent --option build-max-silent-time 2; then
+    echo "build should have failed"
+    exit 1
+fi