allow to set SOCKS credentials using environment variables

Cargo.toml

@@ -13,7 +13,7 @@ description = "Convert Socks5 proxy into Http proxy"
 [dependencies]
 color-eyre = { version = "0.6", default-features = false }
 hyper = { version = "1.7", features = ["client","server","http1"] }
-clap = { version = "4", features = ["derive"] }
+clap = { version = "4", features = ["derive", "env"] }
 tokio-socks = "0.5"
 tokio = { version = "1.47", features = ["macros", "rt-multi-thread"] }
 bytes = "1.10"

src/main.rs

@@ -17,11 +17,11 @@ use tokio::net::TcpListener;
 #[group()]
 struct AuthParams {
     /// Socks5 username
-    #[arg(short = 'u', long, required = false)]
+    #[arg(short = 'u', long, env = "SOCKS5_USER", required = false)]
     username: String,
 
     /// Socks5 password
-    #[arg(short = 'P', long, required = false)]
+    #[arg(short = 'P', long, env = "SOCKS5_PASSWORD", required = false)]
     password: String,
 }