Merge v3 with T15 into v3-t22

userland/spawn/src/lib.rs

@@ -44,13 +44,7 @@ impl Command {
     pub fn stderr(&mut self, mode: Stdio) -> &mut Self { self.stderr = mode; self }
     /// Resolve PATH and start the component.
     pub fn spawn(&self) -> io::Result<Child> {
-        let program = if self.program.contains('/') { self.program.clone() } else {
-            self.env.get("PATH").map(String::as_str).unwrap_or("/usr/local/bin:/bin").split(':')
-                .map(|dir| self.cwd.join(dir).join(&self.program))
-                .find(|p| p.is_file()).ok_or_else(|| io::Error::new(io::ErrorKind::NotFound, &self.program[..]))?
-                .to_string_lossy().into_owned()
-        };
-        let child = host::spawn(&host::Request { program, argv: std::iter::once(self.program.clone()).chain(self.args.clone()).collect(),
+        let child = host::spawn(&host::Request { program: self.program.clone(), argv: std::iter::once(self.program.clone()).chain(self.args.clone()).collect(),
             env: self.env.clone().into_iter().collect(), cwd: self.cwd.to_string_lossy().into_owned(), group: self.group,
             stdin: self.stdin, stdout: self.stdout, stderr: self.stderr }).map_err(io::Error::other)?;
         Ok(Child { stdin: matches!(self.stdin, Stdio::Pipe).then(|| child.stdin()),