From a3bc05193324c6cdc456bd81acb89784b10c42c6 Mon Sep 17 00:00:00 2001
From: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>
Date: Mon, 29 May 2023 16:37:07 +0000
Subject: [PATCH] fix(nix): better errors if nix-prefetch-url fails

---
 internal/pipe/nix/nix.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/internal/pipe/nix/nix.go b/internal/pipe/nix/nix.go
index f9d256409..6d7fa7ec0 100644
--- a/internal/pipe/nix/nix.go
+++ b/internal/pipe/nix/nix.go
@@ -468,5 +468,9 @@ func (p publishShaPrefetcher) Available() bool {
 
 func (p publishShaPrefetcher) Prefetch(url string) (string, error) {
 	out, err := exec.Command(p.bin, url).Output()
-	return strings.TrimSpace(string(out)), err
+	outStr := strings.TrimSpace(string(out))
+	if err != nil {
+		return "", fmt.Errorf("could not prefetch url: %s: %w: %s", url, err, outStr)
+	}
+	return outStr, nil
 }