diff options
| author | Vincent Ambo <tazjin@google.com> | 2019-10-03T12·08+0100 |
|---|---|---|
| committer | Vincent Ambo <github@tazj.in> | 2019-10-03T12·21+0100 |
| commit | 1124b8c236a2f01a1eec2420131627d29f678c9d (patch) | |
| tree | 9e7b46b8a72fdcc888e09d3cd839abca128744be /tools/nixery/server/builder/builder.go | |
| parent | feba42e40933fe932b1ca330d2c919ae018a9a7f (diff) | |
fix(server): Do not invoke layer build if no layers are missing
This previously invoked a Nix derivation that spent a few seconds on making an empty object in JSON ...
Diffstat (limited to 'tools/nixery/server/builder/builder.go')
| -rw-r--r-- | tools/nixery/server/builder/builder.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/tools/nixery/server/builder/builder.go b/tools/nixery/server/builder/builder.go index e622f815a423..81dbd26db188 100644 --- a/tools/nixery/server/builder/builder.go +++ b/tools/nixery/server/builder/builder.go @@ -277,6 +277,11 @@ func prepareLayers(ctx context.Context, s *State, image *Image, result *ImageRes // Builds remaining layers (those not already cached) via Nix. func buildLayers(s *State, image *Image, grouped []layers.Layer) (map[string]string, error) { + result := make(map[string]string) + if len(grouped) == 0 { + return result, nil + } + srcType, srcArgs := s.Cfg.Pkgs.Render(image.Tag) args := []string{ "--argstr", "srcType", srcType, @@ -312,7 +317,6 @@ func buildLayers(s *State, image *Image, grouped []layers.Layer) (map[string]str } log.Printf("Finished layer preparation for '%s' via Nix\n", image.Name) - result := make(map[string]string) err = json.Unmarshal(output, &result) if err != nil { return nil, err |