Adapted old code to fit new codebase

src/builtin/echo.rs

@@ -1,11 +1,20 @@
-use crate::{libsh::error::ShResult, parse::{execute::prepare_argv, NdRule, Node}, prelude::*, procio::{borrow_fd, IoStack}};
+use crate::{jobs::{ChildProc, JobBldr}, libsh::error::ShResult, parse::{execute::prepare_argv, NdRule, Node}, prelude::*, procio::{borrow_fd, IoStack}};
 
-pub fn echo(node: Node, io_stack: &mut IoStack) -> ShResult<()> {
+pub fn echo(node: Node, io_stack: &mut IoStack, job: &mut JobBldr) -> ShResult<()> {
 	let NdRule::Command { assignments: _, argv } = node.class else {
 		unreachable!()
 	};
 	assert!(!argv.is_empty());
 
+	let child_pgid = if let Some(pgid) = job.pgid() {
+		pgid
+	} else {
+		job.set_pgid(Pid::this());
+		Pid::this()
+	};
+	let child = ChildProc::new(Pid::this(), Some("echo"), Some(child_pgid))?;
+	job.push_child(child);
+
 	for redir in node.redirs {
 		io_stack.push_to_frame(redir);
 	}