Initial commit

src/main.rs

@@ -0,0 +1,47 @@
+use anyhow::anyhow;
+use clap::Clap;
+
+use mailparse::MailHeaderMap;
+use std::io::Read;
+
+/// MIME mail viewer.
+#[derive(Clap, Debug)]
+#[clap(version=clap::crate_version!())]
+struct Opts {
+    filename: Option<String>,
+}
+
+fn main() -> Result<(), anyhow::Error> {
+    let opts = Opts::parse();
+    dbg!(&opts);
+    let input = match opts.filename {
+        Some(filename) => std::fs::read(filename)?,
+        None => {
+            let mut result = Vec::new();
+            std::io::stdin().read_to_end(&mut result)?;
+            result
+        }
+    };
+    let message = mailparse::parse_mail(&input)?;
+    println!(
+        "Subject: {}",
+        message
+            .headers
+            .get_first_value("Subject")
+            .unwrap_or_default()
+    );
+
+    let date_str = &message
+        .headers
+        .get_first_value("Date")
+        .ok_or_else(|| anyhow!("No date"))?;
+    dbg!(&date_str);
+    let date = chrono::DateTime::parse_from_rfc2822(&date_str)?;
+    println!("Date: {}", date);
+    // dbg!(&message);
+    //
+    let body = message.get_body()?;
+    println!("---");
+    print!("{}", body);
+    Ok(())
+}