Refactor complete CLI code

src/cli.rs

@@ -1,70 +1,37 @@
 extern crate clap;
 use clap::{App, ArgMatches};
 
-struct ConfigBase {
-    verbosity : bool,
-    debugging : bool,
-}
-
 pub struct ModuleConfig {
-    base : ConfigBase,
     pub load : bool,
 }
 
 impl ModuleConfig {
     pub fn new() -> ModuleConfig {
         ModuleConfig {
-            base: ConfigBase {
-                verbosity: false,
-                debugging: false,
-            },
             load: false,
         }
     }
 }
 
-pub struct Config {
-    base            : ConfigBase,
+pub struct Config<'a> {
     pub module_configs  : Vec<ModuleConfig>,
+    pub cli_matches     : ArgMatches<'a, 'a>,
 }
 
-impl Config {
-    pub fn new() -> Config {
+impl<'a> Config<'a> {
+    pub fn new(app : clap::App<'a, 'a, 'a, 'a, 'a, 'a>) -> Config<'a> {
         Config {
-            base: ConfigBase {
-                verbosity: false,
-                debugging: false,
-            },
             module_configs: vec![],
+            cli_matches: app.get_matches(),
         }
     }
 
     pub fn is_verbose(&self) -> bool {
-        self.base.verbosity
+        self.cli_matches.is_present("verbose")
     }
 
     pub fn is_debugging(&self) -> bool {
-        self.base.debugging
+        self.cli_matches.is_present("debugging")
     }
 }
 
-pub fn configure(config : &mut Config) {
-    let yaml = load_yaml!("../etc/cli.yml");
-    let matches = App::from_yaml(yaml).get_matches();
-
-    parse_global_cfg(&matches, &mut config.base);
-
-    if let Some(matches) = matches.subcommand_matches("test") {
-        if matches.is_present("verbose") {
-            println!("Printing verbosely...");
-        } else {
-            println!("Printing normally...");
-        }
-    }
-}
-
-fn parse_global_cfg(matches : &ArgMatches<>, config : &mut ConfigBase) {
-    config.verbosity = matches.is_present("verbose");
-    config.debugging = matches.is_present("debugging");
-}
-

src/main.rs

@@ -2,6 +2,7 @@
 
 use cli::Config;
 use runtime::Runtime;
+use clap::App;
 
 mod cli;
 mod runtime;
@@ -9,8 +10,9 @@ mod module;
 mod storage;
 
 fn main() {
-    let mut config = Config::new();
-    cli::configure(&mut config);
+    let yaml = load_yaml!("../etc/cli.yml");
+    let app = App::from_yaml(yaml);
+    let mut config = Config::new(app);
 
     let rt = Runtime::new(config);
 

src/runtime.rs

@@ -3,13 +3,13 @@ pub use cli::Config;
 use std::io::stderr;
 use std::io::Write;
 
-pub struct Runtime {
-    config : Config,
+pub struct Runtime<'a> {
+    config : Config<'a>,
 }
 
-impl Runtime {
+impl<'a> Runtime<'a> {
 
-    pub fn new(config : Config) -> Runtime {
+    pub fn new(config : Config<'a>) -> Runtime<'a> {
         Runtime {
             config: config,
         }