refactor(fluent-cli): Overhaul CLI using current version of Clap

Author: alerque

fluent-cli/Cargo.toml

@@ -6,7 +6,7 @@ for Fluent Localization System.
 """
 version = "0.0.1"
 edition.workspace = true
-rust-version.workspace = true
+rust-version = "1.74.0"
 homepage.workspace = true
 repository.workspace = true
 license.workspace = true
@@ -29,4 +29,4 @@ fluent-syntax.workspace = true
 serde = { workspace = true, features = ["derive"]}
 serde_json.workspace = true
 annotate-snippets = { version = "0.6", features = ["color"] }
-clap = "2.33"
+clap = "4.5"

fluent-cli/src/main.rs

@@ -1,17 +1,26 @@
-use clap::App;
+use clap::{Arg, ArgAction, Command};
 
 use fluent_cli::parse_file;
 
 fn main() {
-    let matches = App::new("Fluent Parser")
+    let matches = Command::new("Fluent Parser")
         .version("0.0.1")
         .about("Parses FTL file into an AST")
-        .args_from_usage(
-            "-s, --silent 'Disables error reporting'
-             <FILE> 'FTL file to parse'",
+        .arg(
+            Arg::new("silent")
+            .short('s')
+            .long("silent")
+            .action(ArgAction::SetTrue)
+            .help("Disables error reporting")
+        )
+        .arg(
+            Arg::new("FILE")
+            .required(true)
+            .help("FTL file to parse")
         )
         .get_matches();
 
-    let input = matches.value_of("FILE").unwrap();
-    parse_file(input, matches.is_present("silent"));
+    let input: &String = matches.get_one("FILE").unwrap();
+    let silent: bool = *matches.get_one("silent").unwrap();
+    parse_file(input, silent);
 }