feat: add some more functions to input

coreutils/src/commands/tee.rs

@@ -39,7 +39,7 @@ impl Command for Tee {
         }
 
         let mut buffer = String::new();
-        while boxutils::input::get_like_repl(&mut buffer) {
+        while boxutils::input::repl(&mut buffer) {
             for output in &mut writes {
                 let _ = output.write_all(buffer.as_bytes());
                 let _ = output.flush();

utils/src/input.rs

@@ -1,4 +1,10 @@
+use std::io::Read;
+
 // this function makes it so that an EOF (commonly used in pipes) stops the repl
-pub fn get_like_repl(buffer: &mut String) -> bool {
+pub fn repl(buffer: &mut String) -> bool {
     std::io::stdin().read_line(buffer).unwrap_or(0) > 0
 }
+
+pub fn repl_with_file(file: &mut Box<dyn Read>, buffer: &mut String) -> bool {
+    file.read_to_string(buffer).unwrap_or(0) > 0
+}