logging_util/
lib.rs

1// Copyright 2026 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5/// To properly bookend the logs even when we have an early disconnect, we have this struct which
6/// auto-logs on drop.
7pub struct FfxLogGuard<'a> {
8    log_id: &'a Option<String>,
9}
10
11impl<'a> FfxLogGuard<'a> {
12    pub fn new(log_id: &'a Option<String>) -> Self {
13        if let Some(log_id) = log_id {
14            log::info!("====> Starting ffx session: {}", log_id);
15        }
16        Self { log_id }
17    }
18}
19
20impl Drop for FfxLogGuard<'_> {
21    fn drop(&mut self) {
22        if let Some(log_id) = self.log_id {
23            log::info!("====> Ending ffx session: {}", log_id);
24        }
25    }
26}
logging_util/lib.rs

logging_util/
lib.rs
