/
override.go
72 lines (53 loc) · 1.36 KB
/
override.go
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package shared
import "context"
type Override interface {
Replace(p string) bool
}
type ContextOverrideKey string
const (
OverrideKey ContextOverrideKey = "override"
)
func WithOverride(ctx context.Context, override Override) context.Context {
return context.WithValue(ctx, OverrideKey, override)
}
func GetOverride(ctx context.Context) Override {
if override, ok := ctx.Value(OverrideKey).(Override); ok {
return override
}
return OverrideAll()
}
// Implementations
func OverrideException(sel PathSelect) *OverrideExceptionHandler {
return &OverrideExceptionHandler{
PathSelect: sel,
}
}
// OverrideExceptionHandler replaces all paths EXCEPT the ones selected
type OverrideExceptionHandler struct {
PathSelect
}
var _ Override = &OverrideExceptionHandler{}
func (handler *OverrideExceptionHandler) Replace(p string) bool {
if handler.PathSelect == nil {
return true
}
return !handler.PathSelect.Keep(p)
}
// OverrideAll overrides all paths
func OverrideAll() Override {
return &OverrideAllHandler{}
}
type OverrideAllHandler struct{}
var _ Override = &OverrideAllHandler{}
func (*OverrideAllHandler) Replace(string) bool {
return true
}
// SkipAll skips all paths
func SkipAll() *SkipAllHandler {
return &SkipAllHandler{}
}
type SkipAllHandler struct{}
var _ Override = &SkipAllHandler{}
func (*SkipAllHandler) Replace(string) bool {
return false
}