accept flags but need to accept directories for multifile as buckets

pttodoer/src/main.rs

@@ -4,9 +4,28 @@ use chrono::{DateTime, Local};
 use chrono::naive::NaiveDateTime;
 use regex::Regex;
 use croner;
+use clap::Parser;
 
 fn main() {
-    println!("{:?}", Task::new())
+   let flags = Flags::parse();
+   println!("{}", flags.f());
+}
+
+#[derive(Debug, Parser)]
+struct Flags {
+   #[arg(short = 'f', long = "file", default_value="$PTTODO_FILE")]
+   f: String,
+}
+
+impl Flags {
+   fn f(&self) -> String {
+      if self.f.get(..1) == Some("$") {
+         return std::env::var(
+            self.f.get(1..).unwrap()
+         ).expect("not in env");
+      }
+      self.f.clone()
+   }
 }
 
 #[derive(Debug, serde::Serialize, serde::Deserialize)]
@@ -229,10 +248,6 @@ impl Task {
       }
    }
 
-   fn set(&mut self, k: String, v: String) {
-      self.set_value(k, serde_yaml::Value::String(v));
-   }
-
    fn set_value(&mut self, k: String, v: serde_yaml::Value) {
       self.0.insert(
          serde_yaml::Value::String(k),
@@ -628,6 +643,7 @@ impl TS {
       self.0
    }
 
+   #[allow(dead_code)]
    fn to_string(&self) -> String {
       DateTime::from_timestamp(self.0 as i64, 0)
          .unwrap()