init: scripts can now use #!

build.sh

@@ -64,6 +64,7 @@ pack_initrd() {
     cp ${build_dir}/red ${root_dir}/bin/red
 
     cp -r ${workspace_dir}/etc ${root_dir}/
+    chmod +x ${root_dir}/etc/rc.d/*
 
     cd "${root_dir}"
     mkdir -p dev

etc/inittab

@@ -1,3 +1,3 @@
 init:1:wait:/sbin/rc default
 
-user:1:once:/sbin/login /dev/ttyS0
+user:1:once:/sbin/login /dev/tty0

etc/rc.d/00-mount

@@ -1,2 +1,4 @@
+#!/bin/sh
+
 /sbin/mount -t devfs /dev
 /sbin/mount -t sysfs /sys

init/src/rc.rs

@@ -42,7 +42,7 @@ fn exec_script<P: AsRef<Path>>(path: P, arg: &str) -> Result<(), Error> {
 
     // TODO run those in parallel, if allowed
     // TODO binfmt guessing
-    let mut process = Command::new("/bin/sh").arg(path).arg(arg).spawn()?;
+    let mut process = Command::new(path).arg(arg).spawn()?;
 
     if !process.wait()?.success() {
         eprintln!("{:?}: Failed", path);

shell/src/main.rs

@@ -141,6 +141,10 @@ fn run(mut input: Input, vars: &mut HashMap<String, String>) -> io::Result<ExitC
         }
 
         let line = line.trim();
+        let line = match line.split_once('#') {
+            Some((line, _)) => line.trim(),
+            None => line
+        };
         let cmd = parser::parse_line(vars, line).unwrap();
 
         match exec(input.is_interactive(), &cmd, vars) {