From b2d7a3a70d6a757c0baca768d2259417031a8969 Mon Sep 17 00:00:00 2001
From: Daylin Morgan <me@dayl.in>
Date: Sun, 19 Jan 2025 19:29:48 -0600
Subject: [PATCH] only push if successful build

---
 pkgs/oizys/src/oizys/nix.nim | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/pkgs/oizys/src/oizys/nix.nim b/pkgs/oizys/src/oizys/nix.nim
index dbc38dd..6e0442f 100644
--- a/pkgs/oizys/src/oizys/nix.nim
+++ b/pkgs/oizys/src/oizys/nix.nim
@@ -389,16 +389,17 @@ proc nixBuildWithCache*(name: string, rest:seq[string], service: string, jobs: i
   if isCi():
     reportResults(results)
 
-  # TODO: push after build not at once?
-  var cmd = service
-  cmd.addArg "push"
-  cmd.addArg name
-  cmd.addArg "--jobs"
-  cmd.addArg $jobs
-  cmd.addArgs outs
-  let pushErr = runCmd(cmd)
-  if pushErr != 0:
-    errorQuit "failed to push build to cache"
+  if outs.len > 0:
+    # TODO: push after build not at once?
+    var cmd = service
+    cmd.addArg "push"
+    cmd.addArg name
+    cmd.addArg "--jobs"
+    cmd.addArg $jobs
+    cmd.addArgs outs
+    let pushErr = runCmd(cmd)
+    if pushErr != 0:
+      errorQuit "failed to push build to cache"
 
 proc getUpdatedLockFile() =
   info "getting updated flake.lock as updated.lock"