feat: first commit (with new, default)

src/cmd.rs

@@ -0,0 +1,12 @@
+use clap::{ ArgMatches, App, };
+
+pub type CommandError = Result<(), Box<dyn std::error::Error>>;
+
+pub trait Command {
+
+    fn name(&self) -> &str;
+
+    fn subcommand<'a>(&self) -> App<'a, 'a>;
+
+    fn run(&self, arg_matches: &ArgMatches, _: &ArgMatches) -> CommandError;
+}

src/cmd_default.rs

@@ -0,0 +1,19 @@
+use clap::{ App, Arg, ArgMatches, };
+use crate::cmd::CommandError;
+
+pub struct CommandDefault;
+
+impl CommandDefault {
+
+    pub fn process_command<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
+        app.arg(Arg::with_name("verbose").long("verbose").short("v").multiple(true).help("Show verbose info"))
+    }
+
+    pub fn run(arg_matches: &ArgMatches) -> CommandError {
+        let verbose_count = arg_matches.occurrences_of("verbose");
+        println!("Verbose count: {}", verbose_count);
+
+        error!("Default command is not implemented!");
+        Ok(())
+    }
+}

src/cmd_new.rs

@@ -0,0 +1,35 @@
+use std::fs;
+use std::fs::File;
+use std::os::unix::fs::PermissionsExt;
+use clap::{ Arg, ArgMatches, SubCommand, App };
+use crate::{ success, warning };
+use crate::cmd::{ Command, CommandError };
+
+const CRS_TEMPLATE: &[u8] = include_bytes!("../crs_template.txt");
+
+pub struct CommandNew;
+
+impl Command for CommandNew {
+    fn name(&self) -> &str { "new" }
+
+    fn subcommand<'a>(&self) -> App<'a, 'a> {
+        SubCommand::with_name(self.name()).about("New script subcommand")
+            .arg(Arg::with_name("FILE_NAME").required(true).help("Script file name"))
+    }
+
+    fn run(&self, _arg_matches: &ArgMatches, sub_arg_matches: &ArgMatches) -> CommandError {
+        let file_name = sub_arg_matches.value_of("FILE_NAME").unwrap();
+        if File::open(&file_name).is_ok() {
+            error!("File exists: {}", file_name);
+            return Ok(());
+        }
+        if !file_name.ends_with(".crs") {
+            warning!("File is not ends with .crs");
+        }
+        fs::write(&file_name, CRS_TEMPLATE)?;
+        fs::set_permissions(&file_name, PermissionsExt::from_mode(0o755))?;
+
+        success!("Success, written file: {}", file_name);
+        Ok(())
+    }
+}

src/main.rs

@@ -0,0 +1,54 @@
+#[macro_use] extern crate log;
+//#[macro_use] extern crate lazy_static;
+use clap::App;
+
+mod cmd;
+mod cmd_default;
+mod cmd_new;
+
+use cmd::{ Command, CommandError };
+use cmd_default::CommandDefault;
+use cmd_new::CommandNew;
+
+#[macro_export] macro_rules! success {
+    ($($arg:tt)+) => ( crate::print_ok(&format!($($arg)+)); )
+}
+#[macro_export] macro_rules! warning {
+    ($($arg:tt)+) => ( crate::print_wa(&format!($($arg)+)); )
+}
+
+#[inline]
+fn print_ok (msg: &str) {
+    println!("{g}{b}[ OK ]{e} {g}{m}{e}", g = "\x1B[92m", b = "\x1B[1m", e = "\x1B[0m", m = msg);
+}
+#[inline]
+fn print_wa (msg: &str) {
+    println!("{g}{b}[WARN]{e} {g}{m}{e}", g = "\x1B[93m", b = "\x1B[1m", e = "\x1B[0m", m = msg);
+}
+
+fn main() -> CommandError {
+    pretty_env_logger::init();
+    info!("rust-script-tool started");
+
+    let commands: Vec<Box<dyn Command>> = vec![
+         Box::new(CommandNew{}),
+    ];
+    let mut app = App::new(env!("CARGO_PKG_NAME"))
+                    .version(env!("CARGO_PKG_VERSION"))
+                    .about(env!("CARGO_PKG_DESCRIPTION"));
+    app = CommandDefault::process_command(app);
+    for command in &commands {
+        app = app.subcommand(command.subcommand());
+    }
+
+    let matches = app.get_matches();
+    for command in &commands {
+        if let Some(sub_cmd_matches) = matches.subcommand_matches(command.name()) {
+            info!("matched subcommand: {}", command.name());
+            return command.run(&matches, sub_cmd_matches);
+        }
+    }
+
+    info!("matched default subcommand");
+    CommandDefault::run(&matches)
+}