Added Error message when nothing staged.

Cargo.toml

@@ -20,6 +20,7 @@ serde_json = "1.0.79"
 clap = { version = "3.1.6", features = ["derive"] }
 dirs = "4.0.0"
 anyhow = "1.0.56"
+colored = "2.0.0"
 
 [dev-dependencies]
 assert_fs = "1.0.7"

src/main.rs

@@ -11,11 +11,13 @@ mod commit;
 mod commit_message;
 mod config;
 
+use anyhow::anyhow;
 use anyhow::Result;
 use clap::Parser;
+use colored::Colorize;
 use std::io::Write;
-
 use std::path::PathBuf;
+use std::process::Command;
 
 use commit_message::make_message_commit;
 
@@ -44,6 +46,19 @@ fn main() -> Result<()> {
  std::env::set_current_dir(current_dir)?;
  }
 
+ if let Some(0) = Command::new("git")
+ .args(["diff", "--cached", "--quiet"])
+ .output()
+ .expect("failed to execute process")
+ .status
+ .code()
+ {
+ return Err(anyhow!(
+ "{}",
+ "You have not added anything please do `git add`".red()
+ ));
+ }
+
  let opt = Opt::parse();
  if opt.init {
  let mut file = std::fs::File::create("commit.json")?;