feat: parsing the command line

src/cli.rs

@@ -0,0 +1,42 @@
+use std::path::PathBuf;
+
+use clap::{Parser, ValueEnum};
+
+/// Simple program to greet a person
+#[derive(Parser, Debug)]
+#[command(version, about, long_about = None)]
+pub struct Args {
+    /// Compress or Decompress files name
+    #[arg(required = true)]
+    pub files: Vec<PathBuf>,
+
+    /// Whether to decompress the input
+    #[arg(short, long)]
+    decompress: bool,
+
+    /// Put passwords on compressed files
+    #[arg(short, long)]
+    encrypt: bool,
+
+    #[arg(short, long)]
+    #[clap(value_enum, default_value_t=Format::Zip)]
+    pub format: Format,
+
+    /// Whether to recursively greet
+    #[arg(short, long)]
+    recursive: bool,
+
+    /// Verbose mode
+    #[arg(short, long)]
+    verbose: bool,
+
+    /// Number of compressions to perform
+    #[arg(short, long, default_value = "6")]
+    pub count: u32,
+}
+
+#[derive(ValueEnum, Clone, Debug)]
+pub enum Format {
+    Gzip,
+    Zip,
+}

src/main.rs

@@ -1,65 +1,27 @@
-use clap::{Parser, ValueEnum};
+use clap::Parser;
 
-/// Simple program to greet a person
-#[derive(Parser, Debug)]
-#[command(version, about, long_about = None)]
-struct Args {
-    /// Compress or Decompress file name
-    #[arg(value_name = "FILE")]
-    file: String,
-
-    /// Multiple File Designation
-    #[arg(last=true)]
-    multiple_files: Vec<String>,
-
-    /// Whether to decompress the input
-    #[arg(short, long)]
-    decompress: bool,
-
-    /// Put passwords on compressed files
-    #[arg(short, long)]
-    encrypt: bool,
-
-    #[arg(short, long)]
-    #[clap(value_enum, default_value_t=Format::Zip)]
-    format: Format,
-
-    /// Whether to recursively greet
-    #[arg(short, long)]
-    recursive: bool,
-
-    /// Verbose mode
-    #[arg(short, long)]
-    verbose: bool,
-
-    /// Number of compressions to perform
-    #[arg(short, long, default_value = "6")]
-    count: u32,
-}
-
-#[derive(ValueEnum, Clone, Debug)]
-enum Format {
-    Gzip,
-    Zip,
-}
-
-fn hello() -> String {
-    "Hello, world!".to_string()
-}
+mod cli;
 
 fn main() {
-    let _args = Args::parse();
+    let args = cli::Args::parse();
 
-    println!("Hello, world!");
-    println!("{}", hello());
+    print!("{:?}", args);
 }
 
 #[cfg(test)]
 mod tests {
+    use std::path::PathBuf;
+
     use super::*;
 
     #[test]
-    fn test_hello() {
-        assert_eq!(hello(), "Hello, world!");
+    fn test_run() {
+        let opts =
+            cli::Args::parse_from(&["unicom", "-f", "zip", "-r", "-c", "8", "file1", "file2"]);
+        assert_eq!(
+            opts.files,
+            vec![PathBuf::from("file1"), PathBuf::from("file2")]
+        );
+        assert_eq!(opts.count, 8);
     }
 }