Termios solution works

3 files changed, 34 insertions, 0 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 11f5ba5..17d05e2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -72,6 +72,7 @@ version = "0.1.0"
 dependencies = [
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "colored 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "termios 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -90,6 +91,14 @@ dependencies = [
 ]
 
 [[package]]
+name = "termios"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
 name = "textwrap"
 version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -138,6 +147,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
 "checksum strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4f380125926a99e52bc279241539c018323fab05ad6368b56f93d9369ff550"
 "checksum termion 1.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "689a3bdfaab439fd92bc87df5c4c78417d3cbe537487274e9b0b2dce76e92096"
+"checksum termios 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "70226acdf12d182df757d9fb07c0257a1558ec48c8059f607d6b38145ce4e2fa"
 "checksum textwrap 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "307686869c93e71f94da64286f9a9524c0f308a9e1c87a583de8e9c9039ad3f6"
 "checksum unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "882386231c45df4700b275c7ff55b6f3698780a650026380e72dabe76fa46526"
 "checksum vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
diff --git a/Cargo.toml b/Cargo.toml
index 7ab02c9..62fcd62 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,3 +6,4 @@ authors = ["Yuval Adam <_@yuv.al>"]
 [dependencies]
 colored = "1.6"
 clap = "2.32"
+termios = "0.3.0"
diff --git a/src/main.rs b/src/main.rs
index 8c025af..d3d5f1d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,11 +1,32 @@
 extern crate clap;
 extern crate colored;
+extern crate termios;
 
 use colored::*;
 use clap::{Arg, App};
 use std::path::Path;
 use std::process;
 
+use std::io;
+use std::io::{Read, Write};
+use termios::{Termios, TCSANOW, ECHO, ICANON, tcsetattr};
+
+fn read_char() {
+    let stdin = 0;
+    let termios = Termios::from_fd(stdin).unwrap();
+    let mut new_termios = termios.clone();  // make a mutable copy of termios that we will modify
+    new_termios.c_lflag &= !(ICANON | ECHO);  // no echo and canonical mode
+    tcsetattr(stdin, TCSANOW, &mut new_termios).unwrap();
+    let stdout = io::stdout();
+    let mut reader = io::stdin();
+    let mut buffer = [0;1];  // read exactly one byte
+    print!("Hit a key! ");
+    stdout.lock().flush().unwrap();
+    reader.read_exact(&mut buffer).unwrap();
+    println!("You have hit: {:?}", buffer);
+    tcsetattr(stdin, TCSANOW, & termios).unwrap();  // reset the stdin to original termios data
+}
+
 fn main() {
     let app = App::new("Rustcast")
         .version("0.1")
@@ -27,4 +48,6 @@ fn main() {
         println!("\n{} {}\n", "Input file does not exist:".red(), infile.red());
         process::exit(1);
     }
+
+    read_char();
 }