support color coding logs (#112)

ffmpeg was already doing this; now do it for native logs.

server/Cargo.lock

@@ -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",
 ]

server/src/main.rs

@@ -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();