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package auth
type options struct {
target string
kind map[CredentialKind]interface{}
meta map[string]string
}
type Option func(opts *options)
func matcher(opts []Option) *options {
result := &options{}
for _, opt := range opts {
opt(result)
}
return result
}
func (opts *options) Match(cred Credential) bool {
if opts.target != "" && cred.Target() != opts.target {
return false
}
_, has := opts.kind[cred.Kind()]
if len(opts.kind) > 0 && !has {
return false
}
for key, val := range opts.meta {
if v, ok := cred.GetMetadata(key); !ok || v != val {
return false
}
}
return true
}
func WithTarget(target string) Option {
return func(opts *options) {
opts.target = target
}
}
// WithKind match credentials with the given kind. Can be specified multiple times.
func WithKind(kind CredentialKind) Option {
return func(opts *options) {
if opts.kind == nil {
opts.kind = make(map[CredentialKind]interface{})
}
opts.kind[kind] = nil
}
}
func WithMeta(key string, val string) Option {
return func(opts *options) {
if opts.meta == nil {
opts.meta = make(map[string]string)
}
opts.meta[key] = val
}
}
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