Add get_available_port_names (#5)

Cargo.toml

@@ -15,7 +15,7 @@
 
 [package]
 name = "z-serial"
-version = "0.2.2"
+version = "0.2.3"
 edition = "2021"
 repository = "https://github.com/ZettaScaleLabs/z-serial"
 homepage = "http://zenoh.io"
@@ -39,4 +39,4 @@ log = "0.4"
 clap = { version = "3.1", features = ["derive"] }
 env_logger = "0.9.0"
 tokio = {version = "1.17.0", features = ["full"] }
-rand = "0.8"
+rand = "0.8"

src/lib.rs

@@ -12,6 +12,7 @@
 //   ZettaScale Zenoh Team, <[email protected]>
 //
 
+use std::path::Path;
 use tokio::io::{AsyncReadExt, AsyncWriteExt};
 use tokio_serial::{ClearBuffer, SerialPort, SerialPortBuilderExt, SerialStream};
 
@@ -334,6 +335,25 @@ impl ZSerial {
     }
 }
 
+pub fn get_available_port_names() -> tokio_serial::Result<Vec<String>> {
+    let port_names: Vec<String> = tokio_serial::available_ports()?
+        .iter()
+        .map(|info| {
+            Path::new(&info.port_name)
+                .file_name()
+                .map(|os_str| os_str.to_string_lossy().to_string())
+                .ok_or_else(|| {
+                    tokio_serial::Error::new(
+                        tokio_serial::ErrorKind::Unknown,
+                        "Unsupported port name",
+                    )
+                })
+        })
+        .collect::<Result<Vec<String>, _>>()?;
+
+    Ok(port_names)
+}
+
 #[cfg(test)]
 mod tests {
     use super::{WireFormat, COBS_BUF_SIZE};