micro/runtime/options.go
2019-11-29 11:35:00 +00:00

101 lines
1.9 KiB
Go

package runtime
import (
"io"
)
type Option func(o *Options)
// Options configure runtime
type Options struct {
// Notifier for updates
Notifier Notifier
// Service type to manage
Type string
}
// WithNotifier specifies a notifier for updates
func WithNotifier(n Notifier) Option {
return func(o *Options) {
o.Notifier = n
}
}
// WithType sets the service type to manage
func WithType(t string) Option {
return func(o *Options) {
o.Type = t
}
}
type CreateOption func(o *CreateOptions)
type ReadOption func(o *ReadOptions)
// CreateOptions configure runtime services
type CreateOptions struct {
// command to execute including args
Command []string
// Environment to configure
Env []string
// Log output
Output io.Writer
// Type of service to create
Type string
}
// ReadOptions queries runtime services
type ReadOptions struct {
// Service name
Service string
// Version queries services with given version
Version string
// Type of service
Type string
}
// WithCommand specifies the command to execute
func WithCommand(c string, args ...string) CreateOption {
return func(o *CreateOptions) {
// set command
o.Command = []string{c}
// set args
o.Command = append(o.Command, args...)
}
}
// WithEnv sets the created service environment
func WithEnv(env []string) CreateOption {
return func(o *CreateOptions) {
o.Env = env
}
}
// WithOutput sets the arg output
func WithOutput(out io.Writer) CreateOption {
return func(o *CreateOptions) {
o.Output = out
}
}
// ReadService returns services with the given name
func ReadService(service string) ReadOption {
return func(o *ReadOptions) {
o.Service = service
}
}
// WithVersion confifgures service version
func ReadVersion(version string) ReadOption {
return func(o *ReadOptions) {
o.Version = version
}
}
// ReadType returns services of the given type
func ReadType(t string) ReadOption {
return func(o *ReadOptions) {
o.Type = t
}
}