Add support to load log4rs config file

.github/workflows/CI.yml

@@ -9,6 +9,7 @@ on:
       - 'doc/**'
       - Dockerfile
       - docker-compose.yml
+      - log-cfg.yml
       - README.md
   pull_request:
     branches: [ master ]

.github/workflows/docker.yml

@@ -8,6 +8,7 @@ on:
       - '.github/workflows/github-pages.yaml'
       - 'doc/**'
       - docker-compose.yml
+      - log-cfg.yml
       - README.md
   workflow_dispatch:
 

.github/workflows/github-pages.yaml

@@ -13,6 +13,7 @@ on:
       - 'doc/**'
       - Dockerfile
       - docker-compose.yml
+      - log-cfg.yml
       - README.md
 
   # Allows you to run this workflow manually from the Actions tab

log-cfg.yml

@@ -0,0 +1,39 @@
+appenders:
+  stdout:
+    kind: console
+    encoder:
+      pattern: "{m}{n}"
+  requests:
+    kind: rolling_file
+    path: "log/requests.log"
+    encoder:
+      pattern: "{d} - {m}{n}"
+    policy:
+      kind: compound
+      trigger:
+        kind: size
+        limit: 1mb
+      roller:
+        kind: fixed_window
+        base: 1
+        count: 5
+        pattern: "logs/requests.{}.log"
+root:
+  level: info
+  appenders:
+    - stdout
+loggers:
+  html5ever::tree_builder:
+    level: warn
+  html5ever::tokenizer:
+    level: warn
+  html5ever::tokenizer::char_ref:
+    level: warn
+  reqwest::connect:
+    level: warn
+  server:
+    level: info
+    appenders:
+      - requests
+    additive: false
+  

src/log_cfg.rs

@@ -32,6 +32,17 @@ pub fn init_with_level(level: LevelFilter) {
     }
 }
 
+pub fn init_with_file(path: String) {
+    let config = log4rs::config::load_config_file(path, Default::default()).unwrap();
+    let mut h = HANDLE.get_mut();
+    if let Some(h) = h.as_ref() {
+        h.set_config(config);
+    } else {
+        let handle = init_config(config).unwrap();
+        h.replace(handle);
+    }
+}
+
 pub fn init_default() {
     init_with_level(LevelFilter::Info);
 }

src/opthelper.rs

@@ -384,6 +384,13 @@ impl OptHelper {
     pub fn init_log(&self) {
         if self.opt.get_ref().verbose {
             crate::log_cfg::init_with_level(log::LevelFilter::Debug);
+        } else {
+            match self.log_cfg() {
+                Some(cfg) => {
+                    crate::log_cfg::init_with_file(cfg);
+                }
+                None => {}
+            }
         }
     }
 
@@ -644,6 +651,11 @@ impl OptHelper {
         return PathBuf::from("/app/temp");
         std::env::temp_dir()
     }
+
+    /// The path to config file of [log4rs]
+    pub fn log_cfg(&self) -> Option<String> {
+        return self.settings.get_ref().get_str("log-cfg");
+    }
 }
 
 impl Default for OptHelper {

src/settings_list.rs

@@ -75,6 +75,7 @@ pub fn get_settings_list() -> Vec<SettingDes> {
         #[cfg(feature = "server")]
         SettingDes::new("push-task-max-push-count", gettext("The maximum number of tasks to push to client at the same time."), JsonValueType::Number, Some(check_nozero_usize)).unwrap(),
         SettingDes::new("fanbox-http-headers", gettext("Extra http headers for fanbox.cc."), JsonValueType::Object, Some(check_header_map)).unwrap(),
+        SettingDes::new("log-cfg", gettext("The path to the config file of log4rs."), JsonValueType::Str, None).unwrap(),
     ]
 }