From ee6c05138757a56cdf25d4d6aefe1bbdeb9fecef Mon Sep 17 00:00:00 2001
From: Ross MacArthur <ross@macarthur.io>
Date: Mon, 7 Sep 2020 15:34:46 +0200
Subject: [PATCH] Make `femme` dependency optional

It now is only installed via the `logger` feature. In order to do this
we need the `std` feature from `log` crate.
---
 Cargo.toml     | 5 +++--
 src/log/mod.rs | 2 ++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 394e64f11..ccea22c5b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,7 @@ rustdoc-args = ["--cfg", "feature=\"docs\""]
 [features]
 default = ["h1-server", "logger", "sessions"]
 h1-server = ["async-h1"]
-logger = []
+logger = ["femme"]
 docs = ["unstable"]
 sessions = ["async-session"]
 unstable = []
@@ -39,8 +39,9 @@ async-session  = { version = "2.0.0", optional = true }
 async-sse = "4.0.0"
 async-std = { version = "1.6.0", features = ["unstable"] }
 async-trait = "0.1.36"
-femme = "2.0.1"
+femme = { version = "2.0.1", optional = true }
 futures-util = "0.3.5"
+log = { version = "0.4.8", features = ["std"] }
 http-types = "2.2.1"
 kv-log-macro = "1.0.4"
 pin-project-lite = "0.1.7"
diff --git a/src/log/mod.rs b/src/log/mod.rs
index 77ce8ca52..8f74ac2dc 100644
--- a/src/log/mod.rs
+++ b/src/log/mod.rs
@@ -21,7 +21,9 @@ pub use kv_log_macro::{max_level, Level};
 
 mod middleware;
 
+#[cfg(feature = "logger")]
 pub use femme::LevelFilter;
+
 pub use middleware::LogMiddleware;
 
 /// Start logging.