micro/config/context.go
Vasiliy Tolstov 82248eb3b0
many lint fixes and optimizations (#17)
* util/kubernetes: drop stale files
* debug/log/kubernetes: drop stale files
* util/scope: remove stale files
* util/mdns: drop stale files
* lint fixes

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
2021-02-13 15:35:56 +03:00

35 lines
714 B
Go

package config
import (
"context"
)
type configKey struct{}
// FromContext returns store from context
func FromContext(ctx context.Context) (Config, bool) {
if ctx == nil {
return nil, false
}
c, ok := ctx.Value(configKey{}).(Config)
return c, ok
}
// NewContext put store in context
func NewContext(ctx context.Context, c Config) context.Context {
if ctx == nil {
ctx = context.Background()
}
return context.WithValue(ctx, configKey{}, c)
}
// SetOption returns a function to setup a context with given value
func SetOption(k, v interface{}) Option {
return func(o *Options) {
if o.Context == nil {
o.Context = context.Background()
}
o.Context = context.WithValue(o.Context, k, v)
}
}