add logging for the matrix-sdk

The sdk uses tracing for loging therefore we can't use
pretty-env_logger. We are still able to set the log level via the env
variable RUST_LOG.

Cargo.lock

@@ -77,6 +77,15 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "ansi_term"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "anyhow"
 version = "1.0.39"
@@ -129,17 +138,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "atty"
-version = "0.2.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
-dependencies = [
- "hermit-abi",
- "libc",
- "winapi",
-]
-
 [[package]]
 name = "autocfg"
 version = "1.0.1"
@@ -306,6 +304,18 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "chrono"
+version = "0.4.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "670ad68c9088c2a963aaa298cb369688cf3f9465ce5e2d4ca10e6e0098a1ce73"
+dependencies = [
+ "libc",
+ "num-integer",
+ "num-traits",
+ "winapi",
+]
+
 [[package]]
 name = "cipher"
 version = "0.2.5"
@@ -491,19 +501,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "env_logger"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
-dependencies = [
- "atty",
- "humantime",
- "log",
- "regex",
- "termcolor",
-]
-
 [[package]]
 name = "fastrand"
 version = "1.4.0"
@@ -565,10 +562,10 @@ dependencies = [
  "log",
  "matrix-sdk",
  "once_cell",
- "pretty_env_logger",
  "secret-service",
  "serde_json",
  "tokio",
+ "tracing-subscriber",
  "url",
 ]
 
@@ -1144,15 +1141,6 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "494b4d60369511e7dea41cf646832512a94e542f68bb9c49e54518e0f468eb47"
 
-[[package]]
-name = "humantime"
-version = "1.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df004cfca50ef23c36850aaaa59ad52cc70d0e90243c3c7737a4dd32dc7a3c4f"
-dependencies = [
- "quick-error",
-]
-
 [[package]]
 name = "hyper"
 version = "0.14.4"
@@ -1363,6 +1351,15 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
 
+[[package]]
+name = "matchers"
+version = "0.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f099785f7595cc4b4553a174ce30dd7589ef93391ff414dbb67f62392b9e0ce1"
+dependencies = [
+ "regex-automata",
+]
+
 [[package]]
 name = "matches"
 version = "0.1.8"
@@ -1894,16 +1891,6 @@ version = "0.2.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
 
-[[package]]
-name = "pretty_env_logger"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "926d36b9553851b8b0005f1275891b392ee4d2d833852c417ed025477350fb9d"
-dependencies = [
- "env_logger",
- "log",
-]
-
 [[package]]
 name = "proc-macro-crate"
 version = "0.1.5"
@@ -1958,12 +1945,6 @@ dependencies = [
  "unicode-xid",
 ]
 
-[[package]]
-name = "quick-error"
-version = "1.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
-
 [[package]]
 name = "quote"
 version = "1.0.9"
@@ -2033,6 +2014,16 @@ dependencies = [
  "regex-syntax",
 ]
 
+[[package]]
+name = "regex-automata"
+version = "0.1.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae1ded71d66a4a97f5e961fd0cb25a5f366a42a41570d16a763a69c092c26ae4"
+dependencies = [
+ "byteorder",
+ "regex-syntax",
+]
+
 [[package]]
 name = "regex-syntax"
 version = "0.6.23"
@@ -2451,6 +2442,15 @@ dependencies = [
  "opaque-debug",
 ]
 
+[[package]]
+name = "sharded-slab"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79c719719ee05df97490f80a45acfc99e5a30ce98a1e4fb67aee422745ae14e3"
+dependencies = [
+ "lazy_static",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.2"
@@ -2637,15 +2637,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "termcolor"
-version = "1.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dfed899f0eb03f32ee8c6a0aabdb8a7949659e3466561fc0adf54e26d88c5f4"
-dependencies = [
- "winapi-util",
-]
-
 [[package]]
 name = "thiserror"
 version = "1.0.24"
@@ -2666,6 +2657,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "thread_local"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8018d24e04c95ac8790716a5987d0fec4f8b27249ffa0f7d33f1369bdfb88cbd"
+dependencies = [
+ "once_cell",
+]
+
 [[package]]
 name = "time"
 version = "0.2.26"
@@ -2827,6 +2827,49 @@ dependencies = [
  "tracing",
 ]
 
+[[package]]
+name = "tracing-log"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6923477a48e41c1951f1999ef8bb5a3023eb723ceadafe78ffb65dc366761e3"
+dependencies = [
+ "lazy_static",
+ "log",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-serde"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb65ea441fbb84f9f6748fd496cf7f63ec9af5bca94dd86456978d055e8eb28b"
+dependencies = [
+ "serde",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-subscriber"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "705096c6f83bf68ea5d357a6aa01829ddbdac531b357b45abeca842938085baa"
+dependencies = [
+ "ansi_term",
+ "chrono",
+ "lazy_static",
+ "matchers",
+ "regex",
+ "serde",
+ "serde_json",
+ "sharded-slab",
+ "smallvec",
+ "thread_local",
+ "tracing",
+ "tracing-core",
+ "tracing-log",
+ "tracing-serde",
+]
+
 [[package]]
 name = "try-lock"
 version = "0.2.3"
@@ -3062,15 +3105,6 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
-[[package]]
-name = "winapi-util"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
-dependencies = [
- "winapi",
-]
-
 [[package]]
 name = "winapi-x86_64-pc-windows-gnu"
 version = "0.4.0"

Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 
 [dependencies]
 log = "0.4"
-pretty_env_logger = "0.4"
+tracing-subscriber = "0.2"
 gettext-rs = { version = "0.5", features = ["gettext-system"] }
 gtk-macros = "0.2"
 once_cell = "1.5"

src/main.rs

@@ -27,7 +27,7 @@ pub static RUNTIME: Lazy<tokio::runtime::Runtime> =
 
 fn main() {
     // Initialize logger, debug is carried out via debug!, info!, and warn!.
-    pretty_env_logger::init();
+    tracing_subscriber::fmt::init();
 
     // Prepare i18n
     setlocale(LocaleCategory::LcAll, "");