buildDotnetModule: use tmp file for fetch-deps output

1 files changed, 4 insertions, 2 deletions

diff --git a/pkgs/build-support/dotnet/build-dotnet-module/default.nix b/pkgs/build-support/dotnet/build-dotnet-module/default.nix
index 16e27188671f9..4324f24eb7fbe 100644
--- a/pkgs/build-support/dotnet/build-dotnet-module/default.nix
+++ b/pkgs/build-support/dotnet/build-dotnet-module/default.nix
@@ -287,13 +287,15 @@ stdenvNoCC.mkDerivation (args // {
         echo "Succesfully restored project"
 
         echo "Writing lockfile..."
-        echo -e "# This file was automatically generated by passthru.fetch-deps.\n# Please dont edit it manually, your changes might get overwritten!\n" > "$depsFile"
 
         excluded_sources="${lib.concatStringsSep " " sdkDeps}"
         for excluded_source in ''${excluded_sources[@]}; do
           ls "$excluded_source" >> "$tmp/excluded_list"
         done
-        nuget-to-nix "$tmp/nuget_pkgs" "$tmp/excluded_list" >> "$depsFile"
+        tmpFile="$tmp"/deps.nix
+        echo -e "# This file was automatically generated by passthru.fetch-deps.\n# Please dont edit it manually, your changes might get overwritten!\n" > "$tmpFile"
+        nuget-to-nix "$tmp/nuget_pkgs" "$tmp/excluded_list" >> "$tmpFile"
+        mv "$tmpFile" "$depsFile"
         echo "Succesfully wrote lockfile to $depsFile"
       '';
   } // args.passthru or { };