feat: add support for log4rs.yml in launch_example.json

.vscode/launch_example.json

@@ -10,6 +10,8 @@
             "name": "Debug",
             "program": "${workspaceFolder}/target/debug/sslocal",
             "args": [
+                "--log-config",
+                "log4rs.yml",
                 "--local-addr",
                 "0.0.0.0:2080",
                 "-k",

log4rs.yml

@@ -0,0 +1,33 @@
+refresh_rate: 30 seconds
+appenders:
+  stdout:
+    kind: console
+    encoder:
+      pattern: "{d} {h({l}):<5} {m}{n}"
+  file:
+    kind: rolling_file
+    path: shadowsocks.log
+    encoder:
+      kind: pattern
+      pattern: "{d} {h({l}):<5} {m}{n}"
+    policy:
+      trigger:
+        kind: size
+        limit: 10 mb
+      roller:
+        kind: fixed_window
+        pattern: shadowsocks.{}.log
+        count: 5
+root:
+  level: debug
+  appenders:
+    - stdout
+    - file
+loggers:
+  app::backend::db:
+    level: info
+  app::requests:
+    level: info
+    appenders:
+      - file
+    additive: false