add opt.rs

src/opt.rs

@@ -0,0 +1,37 @@
+use rust_util::XResult;
+use argparse::{ArgumentParser, StoreTrue, Store};
+
+pub struct Options {
+    pub version: bool,
+    pub verbose: bool,
+    pub config: String,
+}
+
+impl Options {
+    pub fn new() -> Options {
+        Options {
+            version: false,
+            verbose: false,
+            config: "".to_string(),
+        }
+    }
+
+    pub fn parse_args(&mut self) -> XResult<()> {
+        {
+            let mut ap = ArgumentParser::new();
+            ap.set_description("oss_backupd - command line OSS backup tool.");
+            ap.refer(&mut self.version).add_option(&["-V", "--version"], StoreTrue, "Print version");
+            ap.refer(&mut self.verbose).add_option(&["-v", "--verbose"], StoreTrue, "Verbose");
+            ap.refer(&mut self.config).add_option(&["-c", "--config"], Store, "Config file");
+            ap.parse_args_or_exit();
+        }
+        
+        Ok(())
+    }
+
+    pub fn new_and_parse_args() -> XResult<Options> {
+        let mut options = Options::new();
+        options.parse_args()?;
+        Ok(options)
+    }
+}