command : ajout struct CommandSequence

src/command.rs

@@ -18,6 +18,45 @@ pub trait Command {
     fn spawn(&self) -> ExitCode;
 }
 
+pub struct CommandSequence {
+    command: Option<Box<dyn Command>>,
+    next_command: Option<Box<dyn Command>>,
+}
+
+impl CommandSequence {
+    pub fn new() -> Self {
+        Self {
+            command: None,
+            next_command: None,
+        }
+    }
+
+    /*
+    pub fn add(&self, command: &dyn Command) {
+        if self.command.is_none() {
+            let my_box = Box::new(command.to_owned());
+            self.command = Some(my_box);
+        }
+    }
+    */
+}
+
+impl Command for CommandSequence {
+    fn spawn(&self) -> ExitCode {
+        let mut exit_code = ExitCode::new(0);
+
+        if self.command.is_some() {
+            exit_code = self.command.as_ref().unwrap().spawn();
+        }
+
+        if self.next_command.is_some() {
+            exit_code = self.next_command.as_ref().unwrap().spawn();
+        }
+
+        exit_code
+    }
+}
+
 pub struct UnixProgram {
     argv: Vec<String>,
 }