From 1b3cb499b4512f43913996428732a758e848f934 Mon Sep 17 00:00:00 2001
From: Hatter Jiang <jht5945@gmail.com>
Date: Sun, 8 Nov 2020 17:01:18 +0800
Subject: [PATCH] feat: add log/log4rs

---
 README.md                |   4 +-
 __log/log4rs/Cargo.lock  | 448 +++++++++++++++++++++++++++++++++++++++
 __log/log4rs/Cargo.toml  |  13 ++
 __log/log4rs/log4rs.yml  |  28 +++
 __log/log4rs/src/main.rs |  52 +++++
 5 files changed, 544 insertions(+), 1 deletion(-)
 create mode 100644 __log/log4rs/Cargo.lock
 create mode 100644 __log/log4rs/Cargo.toml
 create mode 100644 __log/log4rs/log4rs.yml
 create mode 100644 __log/log4rs/src/main.rs

diff --git a/README.md b/README.md
index ceb9619..36868ae 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,8 @@ Project or files:
 │   ├── notify
 │   ├── psutil
 │   └── sysinfo
+├── __log
+│   └── log4rs
 ├── __misc
 │   ├── human_panic
 │   ├── lazy_static
@@ -128,7 +130,7 @@ Project or files:
     ├── vec.rs
     └── while.rs
 
-100 directories, 26 files
+102 directories, 26 files
 
 ```
 
diff --git a/__log/log4rs/Cargo.lock b/__log/log4rs/Cargo.lock
new file mode 100644
index 0000000..998700a
--- /dev/null
+++ b/__log/log4rs/Cargo.lock
@@ -0,0 +1,448 @@
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diff --git a/__log/log4rs/Cargo.toml b/__log/log4rs/Cargo.toml
new file mode 100644
index 0000000..71de16c
--- /dev/null
+++ b/__log/log4rs/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "log4rs"
+version = "0.1.0"
+authors = ["Hatter Jiang <jht5945@gmail.com>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+log = "0.4"
+log4rs = "0.13"
+
+
diff --git a/__log/log4rs/log4rs.yml b/__log/log4rs/log4rs.yml
new file mode 100644
index 0000000..3e1433d
--- /dev/null
+++ b/__log/log4rs/log4rs.yml
@@ -0,0 +1,28 @@
+appenders:
+  # An appender named "stdout" that writes to stdout
+  stdout:
+    kind: console
+    encoder:
+      pattern: "[Console] {d} - {l} -{t} - {m}{n}"
+
+  # An appender named "file" that writes to a file with a custom pattern encoder
+  file:
+    kind: file
+    path: "log/test.log"
+    encoder:
+      pattern: "[File] {d} - {l} - {t} - {m}{n}"
+
+# Set the default logging level to "warn" and attach the "stdout" appender to the root
+root:
+  level: info
+  appenders:
+    - stdout
+
+loggers:
+  # Route log events sent to the "app" logger to the "file" appender,
+  # and *not* the normal appenders installed at the root
+  app:
+    level: info
+    appenders:
+      - file
+    additive: false
\ No newline at end of file
diff --git a/__log/log4rs/src/main.rs b/__log/log4rs/src/main.rs
new file mode 100644
index 0000000..d47ddd9
--- /dev/null
+++ b/__log/log4rs/src/main.rs
@@ -0,0 +1,52 @@
+#[macro_use]
+extern crate log;
+extern crate log4rs;
+
+use log::LevelFilter;
+use log4rs::append::console::ConsoleAppender;
+use log4rs::append::file::FileAppender;
+use log4rs::encode::pattern::PatternEncoder;
+use log4rs::config::{Appender, Config, Logger, Root};
+
+fn main() {
+    match std::env::args().nth(1).unwrap_or_else(|| "".to_owned()).as_str() {
+        "f" | "file" => {
+            println!("Load log4rs config from file");
+            log4rs::init_file("log4rs.yml", Default::default()).unwrap();
+        },
+        _ => {
+            println!("Load log4rs config from code");
+            init_log();
+        },
+    }
+    trace!("A trace");
+    debug!("A debug");
+    info!("A info");
+    info!(target:"app", "File info");
+    warn!("A warn");
+    error!("A error");
+}
+
+fn init_log() {
+    let stdout = ConsoleAppender::builder()
+        .encoder(Box::new(PatternEncoder::new("[Console] {d} - {l} -{t} - {m}{n}")))
+        .build();
+
+    let file = FileAppender::builder()
+        .encoder(Box::new(PatternEncoder::new("[File] {d} - {l} - {t} - {m}{n}")))
+        .build("log/test.log")
+        .unwrap();
+
+    let config = Config::builder()
+        .appender(Appender::builder().build("stdout", Box::new(stdout)))
+        .appender(Appender::builder().build("file", Box::new(file)))
+        .logger(Logger::builder()
+            .appender("file")
+            .additive(false)
+            .build("app", LevelFilter::Info))
+        .build(Root::builder().appender("stdout").build(LevelFilter::Info))
+        .unwrap();
+
+    let _ = log4rs::init_config(config).unwrap();
+}
+