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responses_diff.go
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115 lines (91 loc) · 2.94 KB
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package diff
import (
"fmt"
"github.com/getkin/kin-openapi/openapi3"
)
// ResponsesDiff describes the changes between a pair of sets of response objects: https://swagger.io/specification/#responses-object
type ResponsesDiff struct {
Added []string `json:"added,omitempty" yaml:"added,omitempty"`
Deleted []string `json:"deleted,omitempty" yaml:"deleted,omitempty"`
Modified ModifiedResponses `json:"modified,omitempty" yaml:"modified,omitempty"`
}
// Empty indicates whether a change was found in this element
func (responsesDiff *ResponsesDiff) Empty() bool {
if responsesDiff == nil {
return true
}
return len(responsesDiff.Added) == 0 &&
len(responsesDiff.Deleted) == 0 &&
len(responsesDiff.Modified) == 0
}
// ModifiedResponses is map of response values to their respective diffs
type ModifiedResponses map[string]*ResponseDiff
func newResponsesDiff() *ResponsesDiff {
return &ResponsesDiff{
Added: []string{},
Deleted: []string{},
Modified: ModifiedResponses{},
}
}
func getResponsesDiff(config *Config, state *state, responses1, responses2 *openapi3.Responses) (*ResponsesDiff, error) {
defer state.setDirection(state.direction)
state.setDirection(directionResponse)
diff, err := getResponsesDiffInternal(config, state, responses1, responses2)
if err != nil {
return nil, err
}
if diff.Empty() {
return nil, nil
}
return diff, nil
}
func getResponsesDiffInternal(config *Config, state *state, responses1, responses2 *openapi3.Responses) (*ResponsesDiff, error) {
result := newResponsesDiff()
for responseValue1, responseRef1 := range responses1.Map() {
if responseRef2 := responses2.Value(responseValue1); responseRef2 != nil {
value1, err := derefResponse(responseRef1)
if err != nil {
return nil, err
}
value2, err := derefResponse(responseRef2)
if err != nil {
return nil, err
}
diff, err := diffResponseValues(config, state, value1, value2)
if err != nil {
return nil, err
}
if !diff.Empty() {
result.Modified[responseValue1] = diff
}
} else {
result.Deleted = append(result.Deleted, responseValue1)
}
}
for responseValue2 := range responses2.Map() {
if responseRef1 := responses1.Value(responseValue2); responseRef1 == nil {
result.Added = append(result.Added, responseValue2)
}
}
return result, nil
}
func derefResponse(ref *openapi3.ResponseRef) (*openapi3.Response, error) {
if ref == nil || ref.Value == nil {
return nil, fmt.Errorf("response reference is nil")
}
return ref.Value, nil
}
func (responsesDiff *ResponsesDiff) getSummary() *SummaryDetails {
return &SummaryDetails{
Added: len(responsesDiff.Added),
Deleted: len(responsesDiff.Deleted),
Modified: len(responsesDiff.Modified),
}
}
func responseBodiesToResponses(responseBodies openapi3.ResponseBodies) *openapi3.Responses {
result := openapi3.NewResponsesWithCapacity(len(responseBodies))
for k, v := range responseBodies {
result.Set(k, v)
}
return result
}