From 7f9b2c6f45ce0ca09c0fe8ba07fab16bf4428f38 Mon Sep 17 00:00:00 2001
From: lassulus <lassulus@lassul.us>
Date: Sat, 13 Apr 2019 15:39:40 +0200
Subject: ci: create gcroot only if result exists

---
 krebs/3modules/ci.nix | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'krebs/3modules')

diff --git a/krebs/3modules/ci.nix b/krebs/3modules/ci.nix
index a47dbe611..244de1a0d 100644
--- a/krebs/3modules/ci.nix
+++ b/krebs/3modules/ci.nix
@@ -108,10 +108,12 @@ let
                         name=str(new_step),
                         command=[
                           "${pkgs.writeDash "build-stepper.sh" ''
-                            set -efu
+                            set -xefu
                             profile=${shell.escape profileRoot}/$build_name
                             result=$("$build_script")
-                            ${pkgs.nix}/bin/nix-env -p "$profile" --set "$result"
+                            if [ -n "$result" ]; then
+                              ${pkgs.nix}/bin/nix-env -p "$profile" --set "$result"
+                            fi
                           ''}"
                         ],
                         env={
-- 
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