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support color coding logs (#112)

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ffmpeg was already doing this; now do it for native logs.
This commit is contained in:
Scott Lamb 2021-03-09 22:02:00 -08:00
parent 242368aa47
commit ea8bdef7d9
3 changed files with 13 additions and 3 deletions
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5
guide/troubleshooting.md
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@ -45,11 +45,14 @@ Logging options are controlled by environment variables:
accepted are `google` (the default, like the Google
[glog](https://github.com/google/glog) package) and `google-systemd` (a
variation for better systemd compatibility).
* `MOONFIRE_COLOR` controls color coding when using the `google` format.
It accepts `on`, `off`, or `auto`. `auto` means to color code if stderr
is a terminal.
* Errors include a backtrace if `RUST_BACKTRACE=1` is set.
If you use Docker, set these via Docker's `--env` argument.
With the default `MOONFIRE_FORMAT=glog`, log lines are in the following
With the default `MOONFIRE_FORMAT=google`, log lines are in the following
format:
```text

3
server/Cargo.lock generated
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@ -1274,9 +1274,10 @@ dependencies = [
[[package]]
name = "mylog"
version = "0.1.0"
source = "git+https://github.com/scottlamb/mylog#64519c6d9d4587d803900b82a83b45b35939b8f7"
source = "git+https://github.com/scottlamb/mylog#1406a8d794d799971e0e1079d5188d2dc339c584"
dependencies = [
"chrono",
"libc",
"log",
"parking_lot",
]

8
server/src/main.rs
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@ -1,5 +1,5 @@
// This file is part of Moonfire NVR, a security camera network video recorder.
// Copyright (C) 2020 The Moonfire NVR Authors; see AUTHORS and LICENSE.txt.
// Copyright (C) 2021 The Moonfire NVR Authors; see AUTHORS and LICENSE.txt.
// SPDX-License-Identifier: GPL-v3.0-or-later WITH GPL-3.0-linking-exception.
#![cfg_attr(all(feature = "nightly", test), feature(test))]
@ -116,6 +116,12 @@ fn main() {
.and_then(|s| mylog::Format::from_str(&s))
.unwrap_or(mylog::Format::Google),
)
.set_color(
::std::env::var("MOONFIRE_COLOR")
.map_err(|_| ())
.and_then(|s| mylog::ColorMode::from_str(&s))
.unwrap_or(mylog::ColorMode::Auto),
)
.set_spec(&::std::env::var("MOONFIRE_LOG").unwrap_or("info".to_owned()))
.build();
h.clone().install().unwrap();