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builder/builder-next/exporter/mobyexporter/writer.go

Summary

Maintainability
B
6 hrs
Test Coverage

Function normalizeLayersAndHistory has a Cognitive Complexity of 35 (exceeds 20 allowed). Consider refactoring.
Open

func normalizeLayersAndHistory(diffs []digest.Digest, history []ocispec.History, ref cache.ImmutableRef) ([]digest.Digest, []ocispec.History) {
    refMeta := getRefMetadata(ref, len(diffs))
    var historyLayers int
    for _, h := range history {
        if !h.EmptyLayer {
Severity: Minor
Found in builder/builder-next/exporter/mobyexporter/writer.go - About 2 hrs to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function normalizeLayersAndHistory has 66 lines of code (exceeds 50 allowed). Consider refactoring.
Open

func normalizeLayersAndHistory(diffs []digest.Digest, history []ocispec.History, ref cache.ImmutableRef) ([]digest.Digest, []ocispec.History) {
    refMeta := getRefMetadata(ref, len(diffs))
    var historyLayers int
    for _, h := range history {
        if !h.EmptyLayer {
Severity: Minor
Found in builder/builder-next/exporter/mobyexporter/writer.go - About 1 hr to fix

    Function patchImageConfig has 7 return statements (exceeds 4 allowed).
    Open

    func patchImageConfig(dt []byte, dps []digest.Digest, history []ocispec.History, cache *exptypes.InlineCacheEntry) ([]byte, error) {
    m := map[string]json.RawMessage{}
    if err := json.Unmarshal(dt, &m); err != nil {
        return nil, errors.Wrap(err, "failed to parse image config for patch")
    }
    Severity: Major
    Found in builder/builder-next/exporter/mobyexporter/writer.go - About 45 mins to fix

      Identical blocks of code found in 2 locations. Consider refactoring.
      Open

      func oneOffProgress(ctx context.Context, id string) func(err error) error {
    pw, _, _ := progress.NewFromContext(ctx)
    now := time.Now()
    st := progress.Status{
        Started: &now,
      Severity: Major
      Found in builder/builder-next/exporter/mobyexporter/writer.go and 1 other location - About 1 hr to fix
      builder/builder-next/worker/worker.go on lines 552..567

      Duplicated Code

      Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

      Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

      When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

      Tuning

      This issue has a mass of 176.

      We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

      The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

      If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

      See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

      Refactorings

      Further Reading

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