implement async process spawning

src/dl.rs

@@ -1 +1,2 @@
+pub mod spawn;
 pub mod yt_dlp;

src/dl/spawn.rs

@@ -0,0 +1,25 @@
+use std::process::{Command, Output};
+use tokio::task::{spawn_blocking, JoinError};
+
+pub enum SpawnError {
+    CommandError(std::io::Error),
+    SpawnBlockingError(JoinError)
+}
+
+pub async fn spawn_process(program: String, args: Vec<String>) -> Result<Output, SpawnError> {
+    let output = spawn_blocking(move || {
+        let output = Command::new(program)
+            .args(args)
+            .output();
+        
+        match output {
+            Ok(output) => Ok(output),
+            Err(e) => Err(SpawnError::CommandError(e))
+        }
+    }).await;
+
+    match output {
+        Ok(output) => output,
+        Err(e) => Err(SpawnError::SpawnBlockingError(e))
+    }
+}

src/dl/yt_dlp.rs

@@ -13,20 +13,22 @@ pub struct YtDlpFormat {
     pub vcodec: Option<String>,
     pub acodec: Option<String>,
     pub abr: Option<f32>,
-    pub vbr: Option<f32>
+    pub vbr: Option<f32>,
 }
 
 #[derive(Deserialize, Debug)]
 pub struct YtDlpInfo {
     pub id: String,
     pub title: String,
-    pub formats: Vec<YtDlpFormat>
+    pub formats: Vec<YtDlpFormat>,
+}
+
+enum YtDlpError {
+    SpawnError,
 }
 
 pub struct YtDlp {}
 
 impl YtDlp {
-    pub fn load_info(url: &str) {
-        
-    }
-}
+    pub async fn load_info(url: &str) {}
+}