| // Copyright 2020 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| use {argh::FromArgs, ffx_core::ffx_command}; |
| |
| #[ffx_command()] |
| #[derive(FromArgs, Debug, PartialEq)] |
| #[argh( |
| subcommand, |
| name = "knock", |
| description = "Connect to a service on the target", |
| example = "To connect to a service: |
| |
| $ ffx component knock 'core/appmgr:out:fuchsia.hwinfo.Product'", |
| note = "Knock verifies the existence of a service exposed by a component by |
| attempting to connect to it. The command expects a <selector> with the |
| following format: |
| |
| `<component moniker>:(in|out|exposed)[:<service name>].` |
| |
| Note that wildcards can be used but must match exactly one service. |
| |
| The `component select` command can be used to explore the component |
| topology to compose the correct selector for use in `component knock`.", |
| error_code(1, "Failed to connect to service") |
| )] |
| pub struct KnockCommand { |
| #[argh(positional)] |
| pub selector: String, |
| } |
